WorldWideScience

Sample records for vision architectural elements

  1. Elements of neurogeometry functional architectures of vision

    CERN Document Server

    Petitot, Jean

    2017-01-01

    This book describes several mathematical models of the primary visual cortex, referring them to a vast ensemble of experimental data and putting forward an original geometrical model for its functional architecture, that is, the highly specific organization of its neural connections. The book spells out the geometrical algorithms implemented by this functional architecture, or put another way, the “neurogeometry” immanent in visual perception. Focusing on the neural origins of our spatial representations, it demonstrates three things: firstly, the way the visual neurons filter the optical signal is closely related to a wavelet analysis; secondly, the contact structure of the 1-jets of the curves in the plane (the retinal plane here) is implemented by the cortical functional architecture; and lastly, the visual algorithms for integrating contours from what may be rather incomplete sensory data can be modelled by the sub-Riemannian geometry associated with this contact structure. As such, it provides rea...

  2. FPGA Vision Data Architecture

    Science.gov (United States)

    Morfopoulos, Arin C.; Pham, Thang D.

    2013-01-01

    JPL has produced a series of FPGA (field programmable gate array) vision algorithms that were written with custom interfaces to get data in and out of each vision module. Each module has unique requirements on the data interface, and further vision modules are continually being developed, each with their own custom interfaces. Each memory module had also been designed for direct access to memory or to another memory module.

  3. Tectonic vision in architecture

    DEFF Research Database (Denmark)

    Beim, Anne

    1999-01-01

    By introducing the concept; Tectonic Visions, The Dissertation discusses the interrelationship between the basic idea, the form principles, the choice of building technology and constructive structures within a given building. Includes Mies van der Rohe, Le Corbusier, Eames, Jorn Utzon, Louis Kahn...

  4. Information architecture. Volume 4: Vision

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1998-03-01

    The Vision document marks the transition from definition to implementation of the Department of Energy (DOE) Information Architecture Program. A description of the possibilities for the future, supported by actual experience with a process model and tool set, points toward implementation options. The directions for future information technology investments are discussed. Practical examples of how technology answers the business and information needs of the organization through coordinated and meshed data, applications, and technology architectures are related. This document is the fourth and final volume in the planned series for defining and exhibiting the DOE information architecture. The targeted scope of this document includes DOE Program Offices, field sites, contractor-operated facilities, and laboratories. This document paints a picture of how, over the next 7 years, technology may be implemented, dramatically improving the ways business is conducted at DOE. While technology is mentioned throughout this document, the vision is not about technology. The vision concerns the transition afforded by technology and the process steps to be completed to ensure alignment with business needs. This goal can be met if those directing the changing business and mission-support processes understand the capabilities afforded by architectural processes.

  5. Neural architectures for stereo vision.

    Science.gov (United States)

    Parker, Andrew J; Smith, Jackson E T; Krug, Kristine

    2016-06-19

    Stereoscopic vision delivers a sense of depth based on binocular information but additionally acts as a mechanism for achieving correspondence between patterns arriving at the left and right eyes. We analyse quantitatively the cortical architecture for stereoscopic vision in two areas of macaque visual cortex. For primary visual cortex V1, the result is consistent with a module that is isotropic in cortical space with a diameter of at least 3 mm in surface extent. This implies that the module for stereo is larger than the repeat distance between ocular dominance columns in V1. By contrast, in the extrastriate cortical area V5/MT, which has a specialized architecture for stereo depth, the module for representation of stereo is about 1 mm in surface extent, so the representation of stereo in V5/MT is more compressed than V1 in terms of neural wiring of the neocortex. The surface extent estimated for stereo in V5/MT is consistent with measurements of its specialized domains for binocular disparity. Within V1, we suggest that long-range horizontal, anatomical connections form functional modules that serve both binocular and monocular pattern recognition: this common function may explain the distortion and disruption of monocular pattern vision observed in amblyopia.This article is part of the themed issue 'Vision in our three-dimensional world'. © 2016 The Authors.

  6. Elements of Architecture

    DEFF Research Database (Denmark)

    Elements of Architecture explores new ways of engaging architecture in archaeology. It conceives of architecture both as the physical evidence of past societies and as existing beyond the physical environment, considering how people in the past have not just dwelled in buildings but have existed...... and affective impacts, of these material remains. The contributions in this volume investigate the way time, performance and movement, both physically and emotionally, are central aspects of understanding architectural assemblages. It is a book about the constellations of people, places and things that emerge...

  7. Casual City: informal visions of designed architectures

    OpenAIRE

    Paola Raffa

    2014-01-01

    Read the architecture means address issues of structure, type, homogeneous categories. It means to give connotation to the signs, highlight significant and symbols, measures and relationships. The construction of an architecture is the result of a design. Each design is completely in order with standards and regulations. Places of city, which are subject to the rules, order and govern the space. In residential areas there is, however, an unusual form of mutation of the architecture. The resid...

  8. A unified architecture of transcriptional regulatory elements

    DEFF Research Database (Denmark)

    Andersson, Robin; Sandelin, Albin Gustav; Danko, Charles G.

    2015-01-01

    Gene expression is precisely controlled in time and space through the integration of signals that act at gene promoters and gene-distal enhancers. Classically, promoters and enhancers are considered separate classes of regulatory elements, often distinguished by histone modifications. However...... and enhancers are considered a single class of functional element, with a unified architecture for transcription initiation. The context of interacting regulatory elements and the surrounding sequences determine local transcriptional output as well as the enhancer and promoter activities of individual elements....

  9. A Hybrid Architecture for Vision-Based Obstacle Avoidance

    Directory of Open Access Journals (Sweden)

    Mehmet Serdar Güzel

    2013-01-01

    Full Text Available This paper proposes a new obstacle avoidance method using a single monocular vision camera as the only sensor which is called as Hybrid Architecture. This architecture integrates a high performance appearance-based obstacle detection method into an optical flow-based navigation system. The hybrid architecture was designed and implemented to run both methods simultaneously and is able to combine the results of each method using a novel arbitration mechanism. The proposed strategy successfully fused two different vision-based obstacle avoidance methods using this arbitration mechanism in order to permit a safer obstacle avoidance system. Accordingly, to establish the adequacy of the design of the obstacle avoidance system, a series of experiments were conducted. The results demonstrate the characteristics of the proposed architecture, and the results prove that its performance is somewhat better than the conventional optical flow-based architecture. Especially, the robot employing Hybrid Architecture avoids lateral obstacles in a more smooth and robust manner than when using the conventional optical flow-based technique.

  10. Software architecture for time-constrained machine vision applications

    Science.gov (United States)

    Usamentiaga, Rubén; Molleda, Julio; García, Daniel F.; Bulnes, Francisco G.

    2013-01-01

    Real-time image and video processing applications require skilled architects, and recent trends in the hardware platform make the design and implementation of these applications increasingly complex. Many frameworks and libraries have been proposed or commercialized to simplify the design and tuning of real-time image processing applications. However, they tend to lack flexibility, because they are normally oriented toward particular types of applications, or they impose specific data processing models such as the pipeline. Other issues include large memory footprints, difficulty for reuse, and inefficient execution on multicore processors. We present a novel software architecture for time-constrained machine vision applications that addresses these issues. The architecture is divided into three layers. The platform abstraction layer provides a high-level application programming interface for the rest of the architecture. The messaging layer provides a message-passing interface based on a dynamic publish/subscribe pattern. A topic-based filtering in which messages are published to topics is used to route the messages from the publishers to the subscribers interested in a particular type of message. The application layer provides a repository for reusable application modules designed for machine vision applications. These modules, which include acquisition, visualization, communication, user interface, and data processing, take advantage of the power of well-known libraries such as OpenCV, Intel IPP, or CUDA. Finally, the proposed architecture is applied to a real machine vision application: a jam detector for steel pickling lines.

  11. A Behaviour-Based Architecture for Mapless Navigation Using Vision

    Directory of Open Access Journals (Sweden)

    Mehmet Serdar Guzel

    2012-04-01

    Full Text Available Autonomous robots operating in an unknown and uncertain environment must be able to cope with dynamic changes to that environment. For a mobile robot in a cluttered environment to navigate successfully to a goal while avoiding obstacles is a challenging problem. This paper presents a new behaviour-based architecture design for mapless navigation. The architecture is composed of several modules and each module generates behaviours. A novel method, inspired from a visual homing strategy, is adapted to a monocular vision-based system to overcome goal-based navigation problems. A neural network-based obstacle avoidance strategy is designed using a 2-D scanning laser. To evaluate the performance of the proposed architecture, the system has been tested using Microsoft Robotics Studio (MRS, which is a very powerful 3D simulation environment. In addition, real experiments to guide a Pioneer 3-DX mobile robot, equipped with a pan-tilt-zoom camera in a cluttered environment are presented. The analysis of the results allows us to validate the proposed behaviour-based navigation strategy.

  12. Incremental grouping of image elements in vision

    NARCIS (Netherlands)

    Roelfsema, Pieter R.; Houtkamp, Roos

    2011-01-01

    One important task for the visual system is to group image elements that belong to an object and to segregate them from other objects and the background. We here present an incremental grouping theory (IGT) that addresses the role of object-based attention in perceptual grouping at a psychological

  13. Vision Servoing Based on the Density Analysis of Texture Elements

    Directory of Open Access Journals (Sweden)

    Xiaomin Liu

    2013-01-01

    Full Text Available We present a novel vision servoing method, which is fit for climbing robots and those in unstructured environments, based on texture analysis. A large textured area is the target for observation. After the definition of texture element distribution density, the relationship between the change of the density at some selected points and the camera pose is deduced. The vision servoing control law, which meets the requirement of Lyapunov stability is designed in this paper. Experiments show the effectiveness of this method.

  14. Expert System Architecture for Rocket Engine Numerical Simulators: A Vision

    Science.gov (United States)

    Mitra, D.; Babu, U.; Earla, A. K.; Hemminger, Joseph A.

    1998-01-01

    Simulation of any complex physical system like rocket engines involves modeling the behavior of their different components using mostly numerical equations. Typically a simulation package would contain a set of subroutines for these modeling purposes and some other ones for supporting jobs. A user would create an input file configuring a system (part or whole of a rocket engine to be simulated) in appropriate format understandable by the package and run it to create an executable module corresponding to the simulated system. This module would then be run on a given set of input parameters in another file. Simulation jobs are mostly done for performance measurements of a designed system, but could be utilized for failure analysis or a design job such as inverse problems. In order to use any such package the user needs to understand and learn a lot about the software architecture of the package, apart from being knowledgeable in the target domain. We are currently involved in a project in designing an intelligent executive module for the rocket engine simulation packages, which would free any user from this burden of acquiring knowledge on a particular software system. The extended abstract presented here will describe the vision, methodology and the problems encountered in the project. We are employing object-oriented technology in designing the executive module. The problem is connected to the areas like the reverse engineering of any simulation software, and the intelligent systems for simulation.

  15. Research into the Architecture of CAD Based Robot Vision Systems

    Science.gov (United States)

    1988-02-09

    Vision 󈨚 and "Automatic Generation of Recognition Features for Com- puter Vision," Mudge, Turney and Volz, published in Robotica (1987). All of the...Occluded Parts," (T.N. Mudge, J.L. Turney, and R.A. Volz), Robotica , vol. 5, 1987, pp. 117-127. 5. "Vision Algorithms for Hypercube Machines," (T.N. Mudge

  16. Using Multiple FPGA Architectures for Real-time Processing of Low-level Machine Vision Functions

    Science.gov (United States)

    Thomas H. Drayer; William E. King; Philip A. Araman; Joseph G. Tront; Richard W. Conners

    1995-01-01

    In this paper, we investigate the use of multiple Field Programmable Gate Array (FPGA) architectures for real-time machine vision processing. The use of FPGAs for low-level processing represents an excellent tradeoff between software and special purpose hardware implementations. A library of modules that implement common low-level machine vision operations is presented...

  17. Network Architecture: lessons from the past, vision for the future

    CERN Document Server

    CERN. Geneva

    2004-01-01

    The Architectural Principles of the Internet have dominated the past decade. Orthogonal to the telecommunications industry principles, they dramatically changed the networking landscape because they relied on iconoclastic ideas. First, the Internet end-to-end principle, which stipulates that the network should intervene minimally on the end-to-end traffic, pushing the complexity to the end-systems. Second, the ban of centralized functions: all the Internet techniques (routing, DNS, management) are based on distributed, decentralized mechanisms. Third, the absolute domination of connectionless (stateless) protocols (as with IP, HTTTP). However, when facing new requirements: multimedia traffic, security, Grid applications, these principles appear sometimes as architectural barriers. Multimedia requires QoS guarantees, but stateless systems are not good at QoS. Security requires active, intelligent networks, but dumb routers or plain end-to-end mail systems are insufficient. Grid applications require...

  18. Exploring Architectural Details Through a Wearable Egocentric Vision Device.

    Science.gov (United States)

    Alletto, Stefano; Abati, Davide; Serra, Giuseppe; Cucchiara, Rita

    2016-02-17

    Augmented user experiences in the cultural heritage domain are in increasing demand by the new digital native tourists of 21st century. In this paper, we propose a novel solution that aims at assisting the visitor during an outdoor tour of a cultural site using the unique first person perspective of wearable cameras. In particular, the approach exploits computer vision techniques to retrieve the details by proposing a robust descriptor based on the covariance of local features. Using a lightweight wearable board, the solution can localize the user with respect to the 3D point cloud of the historical landmark and provide him with information about the details at which he is currently looking. Experimental results validate the method both in terms of accuracy and computational effort. Furthermore, user evaluation based on real-world experiments shows that the proposal is deemed effective in enriching a cultural experience.

  19. Exploring Architectural Details Through a Wearable Egocentric Vision Device

    Directory of Open Access Journals (Sweden)

    Stefano Alletto

    2016-02-01

    Full Text Available Augmented user experiences in the cultural heritage domain are in increasing demand by the new digital native tourists of 21st century. In this paper, we propose a novel solution that aims at assisting the visitor during an outdoor tour of a cultural site using the unique first person perspective of wearable cameras. In particular, the approach exploits computer vision techniques to retrieve the details by proposing a robust descriptor based on the covariance of local features. Using a lightweight wearable board, the solution can localize the user with respect to the 3D point cloud of the historical landmark and provide him with information about the details at which he is currently looking. Experimental results validate the method both in terms of accuracy and computational effort. Furthermore, user evaluation based on real-world experiments shows that the proposal is deemed effective in enriching a cultural experience.

  20. Binary morphology with spatially variant structuring elements: algorithm and architecture.

    Science.gov (United States)

    Hedberg, Hugo; Dokladal, Petr; Owall, Viktor

    2009-03-01

    Mathematical morphology with spatially variant structuring elements outperforms translation-invariant structuring elements in various applications and has been studied in the literature over the years. However, supporting a variable structuring element shape imposes an overwhelming computational complexity, dramatically increasing with the size of the structuring element. Limiting the supported class of structuring elements to rectangles has allowed for a fast algorithm to be developed, which is efficient in terms of number of operations per pixel, has a low memory requirement, and a low latency. These properties make this algorithm useful in both software and hardware implementations, not only for spatially variant, but also translation-invariant morphology. This paper also presents a dedicated hardware architecture intended to be used as an accelerator in embedded system applications, with corresponding implementation results when targeted for both field programmable gate arrays and application specific integrated circuits.

  1. Key Architecture Elements of a Great Observatory for Space Physics

    Science.gov (United States)

    Eastman, T. E.; Borne, K. D.

    2006-05-01

    Many different virtual observatories or grid systems are emerging to fulfill the growing demands of multi- spacecraft, distributed, communications-intensive, adaptive mission architectures. We have introduced the data-model-HPC-sensor rubric to clarify the relationships of such systems and to highlight the great potential for data-driven science.* Key architecture elements of a Great Observatory for space physics can then be framed within the broad categories of (1) services grid [service oriented architecture (SOA), including Web Services], (2) knowledge grid [ontology inference layer, unified schema, data mining], (3) computation grid, and (4) sensor grid [e.g., multi-node, dynamically adaptive, observing systems or "sensor webs"]. Complementing this with tools for end-to-end web-enabled publishing of and access to data, metadata, software and science results then brings the Great Observatory to every scientist's desktop both now and for the indefinite future. *Eastman, T., et al., eScience and Archiving, Data Science Journal, Vol. 4, Sept. 1, 2005, pp. 67-75.

  2. Spectral-element seismic wave propagation on emerging HPC architectures

    Science.gov (United States)

    Peter, Daniel; Liu, Qiancheng; Komatitsch, Dimitri

    2017-04-01

    Seismic tomography is the most prominent approach to infer physical properties of Earth's internal structures such as compressional- and shear-wave speeds, anisotropy and attenuation. Using seismic signals from ground-motion records, recent advances in full-waveform inversions require increasingly accurate simulations of seismic wave propagation in complex 3D media to provide access to the complete 3D seismic wavefield. However, such numerical simulations are computationally expensive and need high-performance computing (HPC) facilities for further improving the current state of knowledge. During recent years, new multi- and many-core architectures such as graphics processing units (GPUs) have been added to available large HPC systems. GPU-accelerated computing together with advances in multi-core central processing units (CPUs) can greatly accelerate scientific applications. To employ a wide variety of hardware accelerators for seismic wave propagation simulations, we incorporated a code generation tool BOAST into an existing spectral-element code package SPECFEM3D_GLOBE. This allows us to use meta-programming of computational kernels and generate optimized source code for both CUDA and OpenCL languages, running simulations on either CUDA or OpenCL hardware accelerators. We show here benchmark applications of seismic wave propagation on GPUs and CPUs, comparing performances on emerging hardware architectures.

  3. Architectural elements of hybrid navigation systems for future space transportation

    Science.gov (United States)

    Trigo, Guilherme F.; Theil, Stephan

    2017-12-01

    The fundamental limitations of inertial navigation, currently employed by most launchers, have raised interest for GNSS-aided solutions. Combination of inertial measurements and GNSS outputs allows inertial calibration online, solving the issue of inertial drift. However, many challenges and design options unfold. In this work we analyse several architectural elements and design aspects of a hybrid GNSS/INS navigation system conceived for space transportation. The most fundamental architectural features such as coupling depth, modularity between filter and inertial propagation, and open-/closed-loop nature of the configuration, are discussed in the light of the envisaged application. Importance of the inertial propagation algorithm and sensor class in the overall system are investigated, being the handling of sensor errors and uncertainties that arise with lower grade sensory also considered. In terms of GNSS outputs we consider receiver solutions (position and velocity) and raw measurements (pseudorange, pseudorange-rate and time-difference carrier phase). Receiver clock error handling options and atmospheric error correction schemes for these measurements are analysed under flight conditions. System performance with different GNSS measurements is estimated through covariance analysis, being the differences between loose and tight coupling emphasized through partial outage simulation. Finally, we discuss options for filter algorithm robustness against non-linearities and system/measurement errors. A possible scheme for fault detection, isolation and recovery is also proposed.

  4. Efficiency of High Order Spectral Element Methods on Petascale Architectures

    KAUST Repository

    Hutchinson, Maxwell

    2016-06-14

    High order methods for the solution of PDEs expose a tradeoff between computational cost and accuracy on a per degree of freedom basis. In many cases, the cost increases due to higher arithmetic intensity while affecting data movement minimally. As architectures tend towards wider vector instructions and expect higher arithmetic intensities, the best order for a particular simulation may change. This study highlights preferred orders by identifying the high order efficiency frontier of the spectral element method implemented in Nek5000 and NekBox: the set of orders and meshes that minimize computational cost at fixed accuracy. First, we extract Nek’s order-dependent computational kernels and demonstrate exceptional hardware utilization by hardware-aware implementations. Then, we perform productionscale calculations of the nonlinear single mode Rayleigh-Taylor instability on BlueGene/Q and Cray XC40-based supercomputers to highlight the influence of the architecture. Accuracy is defined with respect to physical observables, and computational costs are measured by the corehour charge of the entire application. The total number of grid points needed to achieve a given accuracy is reduced by increasing the polynomial order. On the XC40 and BlueGene/Q, polynomial orders as high as 31 and 15 come at no marginal cost per timestep, respectively. Taken together, these observations lead to a strong preference for high order discretizations that use fewer degrees of freedom. From a performance point of view, we demonstrate up to 60% full application bandwidth utilization at scale and achieve ≈1PFlop/s of compute performance in Nek’s most flop-intense methods.

  5. Implementing the Freight Transportation Data Architecture : Data Element Dictionary

    Science.gov (United States)

    2015-01-01

    NCFRP Report 9: Guidance for Developing a Freight Data Architecture articulates the value of establishing architecture for linking data across modes, subjects, and levels of geography to obtain essential information for decision making. Central to th...

  6. Overview of the Smart Network Element Architecture and Recent Innovations

    Science.gov (United States)

    Perotti, Jose M.; Mata, Carlos T.; Oostdyk, Rebecca L.

    2008-01-01

    In industrial environments, system operators rely on the availability and accuracy of sensors to monitor processes and detect failures of components and/or processes. The sensors must be networked in such a way that their data is reported to a central human interface, where operators are tasked with making real-time decisions based on the state of the sensors and the components that are being monitored. Incorporating health management functions at this central location aids the operator by automating the decision-making process to suggest, and sometimes perform, the action required by current operating conditions. Integrated Systems Health Management (ISHM) aims to incorporate data from many sources, including real-time and historical data and user input, and extract information and knowledge from that data to diagnose failures and predict future failures of the system. By distributing health management processing to lower levels of the architecture, there is less bandwidth required for ISHM, enhanced data fusion, make systems and processes more robust, and improved resolution for the detection and isolation of failures in a system, subsystem, component, or process. The Smart Network Element (SNE) has been developed at NASA Kennedy Space Center to perform intelligent functions at sensors and actuators' level in support of ISHM.

  7. Analysis of central enterprise architecture elements in models of six eHealth projects.

    Science.gov (United States)

    Virkanen, Hannu; Mykkänen, Juha

    2014-01-01

    Large-scale initiatives for eHealth services have been established in many countries on regional or national level. The use of Enterprise Architecture has been suggested as a methodology to govern and support the initiation, specification and implementation of large-scale initiatives including the governance of business changes as well as information technology. This study reports an analysis of six health IT projects in relation to Enterprise Architecture elements, focusing on central EA elements and viewpoints in different projects.

  8. Bridging The Gap Between The Past And The Present: A Reconsideration Of Mosque Architectural Elements

    Directory of Open Access Journals (Sweden)

    Omar S Asfour

    2016-12-01

    Full Text Available Mosques are among the most important building types for any community, where Muslims gather for their prayers and social activities. Mosque architecture has developed over history and faced several dramatic changes. This raises a question regarding the reality of mosque architecture and how it should look like today. This paper discusses this issue through a historical overview and some critical observations. Firstly, the paper discusses the historical functional role of mosque basic elements. Validity of these elements within the context of modern architecture has been argued considering the contemporary inputs that have a significant impact on mosque architecture. Several cases are presented and discussed in this regard. The study concluded that there is a great symbolic and spiritual value of these elements that should be maintained. The analysis carried out of several contemporary cases revealed that there is a wide margin to revive and reintroduce these elements in the light of the modern architectural trends. In addition to their functional roles, mosque architectural elements could be used as identity elements of the Islamic city, microclimatic modifiers, and linking tools between the past and the present.

  9. Urban-Architectural vision of aesthetic paradigm and commerce, Historic Center, Mexico-City.

    Directory of Open Access Journals (Sweden)

    Maria Guadalupe Valiñas

    2017-01-01

    Full Text Available The aim of the article is to show a current perspective Historic center of Mexico City and its problematic is that excessive trade in this space harms the urban architectural heritage and then the aesthetics of it is hampered by his use trade in. The problem is to investigate this space to analyze how antagonistically articulates the relationship between trade and aesthetics in it. This place is the center of the city and the country, it is saturated with trade in its various forms, from commercial plazas, passages, markets, up to the street vendors, these elements in their relationship affect the damage of the Historic Center the Mexico City and contribute to the deterioration of the urban architectural aesthetics of the space. The main contributions of this work reflect the different adverse effects from trade to the detriment of the aesthetic aspect, which should be evaluated as depopulation, converting housing in warehouses, upholstering informal trade public space and damage to the landmarks in the area. The usefulness of the project is growing in relation to the direction they should take public policies to preserve that heritage for the sake of seeking environmental, social and economic welfare equitably strengthen the aesthetic appearance, which itself should be one of the main features of historical center given the cultural and historical significance of the site.

  10. Receiver architecture of the thousand-element array (THEA)

    NARCIS (Netherlands)

    Kant, G.W.; Kokkeler, Andre B.J.; Smolders, A.B.; Gunst, A.W.

    2000-01-01

    As part of the development of a new international radio-telescope SKA (Square Kilometre Array), an outdoor phasedarray prototype, the THousand Element Array (THEA), is being developed at NFRA. THEA is a phased array with 1024 active elements distributed on a regular grid over a surface of

  11. Glider and Vision: two new families of miniature inverted-repeat transposable elements in Xenopus laevis genome.

    Science.gov (United States)

    Lepetit, D; Pasquet, S; Olive, M; Thézé, N; Thiébaud, P

    2000-01-01

    We have characterised from Xenopus laevis two new short interspersed repetitive elements, we have named Glider and Vision, that belong to the family of miniature inverted-repeat transposable elements (MITEs). Glider was first characterised in an intronic region of the alpha-tropomyosin (alpha-TM) gene and database search has revealed the presence of this element in 10 other Xenopus laevis genes. Glider elements are about 150 bp long and for some of them, their terminal inverted repeats are flanked by potential target-site duplications. Evidence for the mobility of Glider element has been provided by the presence/absence of one element at corresponding location in duplicated alpha-TM genes. Vision element has been identified in the promoter region of the cyclin dependant kinase 2 gene (cdk2) where it is boxed in a Glider element. Vision is 284bp long and is framed by 14-bp terminal inverted repeats that are flanked by 7-bp direct repeats. We have estimated that there are about 20,000 and 300 copies of Glider and Vision respectively scattered throughout the Xenopus laevis genome. Every MITEs elements but two described in our study are found either in 5' or in 3' regulatory regions of genes suggesting a potential role in gene regulation.

  12. VO2 thin films and nanoparticles for energy-saving applications in architectural elements

    OpenAIRE

    Garcia, Ivan Aristides Ferreira

    2015-01-01

    Vanadium dioxide (VO2) is a promising material with large interest in construction industry and architecture, due to its thermochromic properties. This material may be used to create "smart" coatings that result in improvements in the buildings energy efficiency, by reducing heat exchanges and, consequently, the need for acclimatization. In this work, VO2 thin films and coatings were produced and tested in laboratory, to apply in architectural elements, such as glass, rooftop tiles and exteri...

  13. A Neural Network Architecture For Rapid Model Indexing In Computer Vision Systems

    Science.gov (United States)

    Pawlicki, Ted

    1988-03-01

    Models of objects stored in memory have been shown to be useful for guiding the processing of computer vision systems. A major consideration in such systems, however, is how stored models are initially accessed and indexed by the system. As the number of stored models increases, the time required to search memory for the correct model becomes high. Parallel distributed, connectionist, neural networks' have been shown to have appealing content addressable memory properties. This paper discusses an architecture for efficient storage and reference of model memories stored as stable patterns of activity in a parallel, distributed, connectionist, neural network. The emergent properties of content addressability and resistance to noise are exploited to perform indexing of the appropriate object centered model from image centered primitives. The system consists of three network modules each of which represent information relative to a different frame of reference. The model memory network is a large state space vector where fields in the vector correspond to ordered component objects and relative, object based spatial relationships between the component objects. The component assertion network represents evidence about the existence of object primitives in the input image. It establishes local frames of reference for object primitives relative to the image based frame of reference. The spatial relationship constraint network is an intermediate representation which enables the association between the object based and the image based frames of reference. This intermediate level represents information about possible object orderings and establishes relative spatial relationships from the image based information in the component assertion network below. It is also constrained by the lawful object orderings in the model memory network above. The system design is consistent with current psychological theories of recognition by component. It also seems to support Marr's notions

  14. Quantifying patterns of dynamics in eye movement to measure goodness in organization of design elements in interior architecture

    Science.gov (United States)

    Mirkia, Hasti; Sangari, Arash; Nelson, Mark; Assadi, Amir H.

    2013-03-01

    Architecture brings together diverse elements to enhance the observer's measure of esthetics and the convenience of functionality. Architects often conceptualize synthesis of design elements to invoke the observer's sense of harmony and positive affect. How does an observer's brain respond to harmony of design in interior spaces? One implicit consideration by architects is the role of guided visual attention by observers while navigating indoors. Prior visual experience of natural scenes provides the perceptual basis for Gestalt of design elements. In contrast, Gestalt of organization in design varies according to the architect's decision. We outline a quantitative theory to measure the success in utilizing the observer's psychological factors to achieve the desired positive affect. We outline a unified framework for perception of geometry and motion in interior spaces, which integrates affective and cognitive aspects of human vision in the context of anthropocentric interior design. The affective criteria are derived from contemporary theories of interior design. Our contribution is to demonstrate that the neural computations in an observer's eye movement could be used to elucidate harmony in perception of form, space and motion, thus a measure of goodness of interior design. Through mathematical modeling, we argue the plausibility of the relevant hypotheses.

  15. Using High-Level RTOS Models for HW/SW Embedded Architecture Exploration: Case Study on Mobile Robotic Vision

    Directory of Open Access Journals (Sweden)

    Verdier François

    2008-01-01

    Full Text Available Abstract We are interested in the design of a system-on-chip implementing the vision system of a mobile robot. Following a biologically inspired approach, this vision architecture belongs to a larger sensorimotor loop. This regulation loop both creates and exploits dynamics properties to achieve a wide variety of target tracking and navigation objectives. Such a system is representative of numerous flexible and dynamic applications which are more and more encountered in embedded systems. In order to deal with all of the dynamic aspects of these applications, it appears necessary to embed a dedicated real-time operating system on the chip. The presence of this on-chip custom executive layer constitutes a major scientific obstacle in the traditional hardware and software design flows. Classical exploration and simulation tools are particularly inappropriate in this case. We detail in this paper the specific mechanisms necessary to build a high-level model of an embedded custom operating system able to manage such a real-time but flexible application. We also describe our executable RTOS model written in SystemC allowing an early simulation of our application on top of its specific scheduling layer. Based on this model, a methodology is discussed and results are given on the exploration and validation of a distributed platform adapted to this vision system.

  16. The architecture of cartilage: Elemental maps and scanning transmission ion microscopy/tomography

    Energy Technology Data Exchange (ETDEWEB)

    Reinert, Tilo E-mail: reinert@physik.uni-leipzig.de; Reibetanz, Uta; Schwertner, Michael; Vogt, Juergen; Butz, Tilman; Sakellariou, Arthur

    2002-04-01

    Articular cartilage is not just a jelly-like cover of the bone within the joints but a highly sophisticated architecture of hydrated macromolecules, collagen fibrils and cartilage cells. Influences on the physiological balance due to age-related or pathological changes can lead to malfunction and subsequently to degradation of the cartilage. Many activities in cartilage research are dealing with the architecture of joint cartilage but have limited access to elemental distributions. Nuclear microscopy is able to yield spatially resolved elemental concentrations, provides density information and can visualise the arrangement of the collagen fibres. The distribution of the cartilage matrix can be deduced from the elemental and density maps. The findings showed a varying content of collagen and proteoglycan between zones of different cell maturation. Zones of higher collagen content are characterised by aligned collagen fibres that can form tubular structures. Recently we focused on STIM tomography to investigate the three dimensional arrangement of the collagen structures.

  17. Shadow and feature recognition aids for rapid image geo-registration in UAV vision system architectures

    Science.gov (United States)

    Baer, Wolfgang; Kölsch, Mathias

    2009-05-01

    The problem of real-time image geo-referencing is encountered in all vision based cognitive systems. In this paper we present a model-image feedback approach to this problem and show how it can be applied to image exploitation from Unmanned Arial Vehicle (UAV) vision systems. By calculating reference images from a known terrain database, using a novel ray trace algorithm, we are able to eliminate foreshortening, elevation, and lighting distortions, introduce registration aids and reduce the geo-referencing problem to a linear transformation search over the two dimensional image space. A method for shadow calculation that maintains real-time performance is also presented. The paper then discusses the implementation of our model-image feedback approach in the Perspective View Nascent Technology (PVNT) software package and provides sample results from UAV mission control and target mensuration experiments conducted at China Lake and Camp Roberts, California.

  18. A Real-Time Early Cognitive Vision System based on a Hybrid coarse and fine grained Parallel Architecture

    DEFF Research Database (Denmark)

    Jensen, Lars Baunegaard With

    such as recognition, reasoning and planning.The ECV stage is a hierarchical architecture that makes use of an early-local-symbolic representation to sparsify and increase the semantic richness of the information from EV. Before this project, the EV and ECV stages of our software were processed on a single core CPU....... The current top model GPUs from NVIDIA possess up to 240 homogeneous cores. In the past, GPUs have beenhard to program, forcing the programmer to map the algorithm to the graphics processing pipeline and think in terms of vertex and fragment shaders, imposing a limiting factor in the implementation of non......, have less regular behavior and therefore fit the CPU better. OpenMP which is an API for shared memory parallel programming, has been used to parallelize parts of the code running on the CPU. This work presents a heterogeneous platform - called the "vision machine" - with which we have been able...

  19. Delta: An object-oriented finite element code architecture for massively parallel computers

    Energy Technology Data Exchange (ETDEWEB)

    Weatherby, J.R.; Schutt, J.A.; Peery, J.S.; Hogan, R.E.

    1996-02-01

    Delta is an object-oriented code architecture based on the finite element method which enables simulation of a wide range of engineering mechanics problems in a parallel processing environment. Written in C{sup ++}, Delta is a natural framework for algorithm development and for research involving coupling of mechanics from different Engineering Science disciplines. To enhance flexibility and encourage code reuse, the architecture provides a clean separation of the major aspects of finite element programming. Spatial discretization, temporal discretization, and the solution of linear and nonlinear systems of equations are each implemented separately, independent from the governing field equations. Other attractive features of the Delta architecture include support for constitutive models with internal variables, reusable ``matrix-free`` equation solvers, and support for region-to-region variations in the governing equations and the active degrees of freedom. A demonstration code built from the Delta architecture has been used in two-dimensional and three-dimensional simulations involving dynamic and quasi-static solid mechanics, transient and steady heat transport, and flow in porous media.

  20. Impacts of traditional architecture on the use of wood as an element of facade covering in Serbian contemporary architecture

    Directory of Open Access Journals (Sweden)

    Ivanović-Šekularac Jelena

    2011-01-01

    Full Text Available The world trend of re-use of wood and wood products as materials for construction and covering of architectural structures is present not only because of the need to meet the aesthetic, artistic and formal requirements or to seek inspiration in the return to the tradition and nature, but also because of its ecological, economic and energetic feasibility. Furthermore, the use of wood fits into contemporary trends of sustainable development and application of modern technical and technological solutions in the production of materials, in order to maintain a connection to nature, environment and tradition. In this study the author focuses on wood and wood products as an element of facade covering on buildings in our country, in order to extend knowledge about possibilities and limitations of their use and create a base for their greater and correct application. The subject of this research is to examine the application of wood and wood products as an element covering the exterior in combination with other materials applied in our traditional and contemporary homes with the emphasis on functional, representational art and the various possibilities of wood. In this study all the factors that affect the application of wood and wood products have been analyzed and the conclusions have been drawn about the manner of their implementation and the types of wood and wood products protection. The development of modern technological solutions in wood processing led to the production of composite materials based on wood that are highly resistant, stable and much longer lasting than wood. Those materials have maintained in an aesthetic sense all the characteristics of wood that make it unique and inimitable. This is why modern facade coating based on wood should be applied as a facade covering in the exterior of modern architectural buildings in Serbia, and the use wood reduced to a minimum.

  1. Architecture for the Elderly and Frail People, Well-Being Elements Realizations and Outcomes

    DEFF Research Database (Denmark)

    Knudstrup, Mary-Ann

    2011-01-01

    -being elements in the nursing home environments that contribute to enhancing the well-being of the elderly and how these elements is ensured attention during a decision making process related to the design and the establishing of nursing homes. With basis in four Danish representative case studies, various case...... data from the decision making process are collected, covering the planning, the design and the realization of four newly built nursing homes in Denmark. The case studies clearly shows that the architectural well-being elements appear weak in the decision making process, when they are conflicting...... knowledge and scientific evidence and use them as design drivers through the design process. To secure well-being elements in the coming residential care facilities for the elderly....

  2. On the influence of microscopic architecture elements to the global viscoelastic properties of soft biological tissue

    Science.gov (United States)

    Posnansky, Oleg P.

    2014-12-01

    In this work we introduce a 2D minimal model of random scale-invariant network structures embedded in a matrix to study the influence of microscopic architecture elements on the viscoelastic behavior of soft biological tissue. Viscoelastic properties at a microscale are modeled by a cohort of basic elements with varying complexity integrated into multi-hierarchic lattice obeying self-similar geometry. It is found that this hierarchy of structure elements yields a global nonlinear frequency dependent complex-valued shear modulus. In the dynamic range of external frequency load, the modeled shear modulus proved sensitive to the network concentration and viscoelastic characteristics of basic elements. The proposed model provides a theoretical framework for the interpretation of dynamic viscoelastic parameters in the context of microstructural variations under different conditions.

  3. Fama Architecture: Implementation Details

    Science.gov (United States)

    Alcolea, A.; Martinez, A.; Laguna, P.; Navarro, J.; Pollan, T.; Vicente, S. J.; Roy, A.

    1987-10-01

    The FAMA (Fine granularity Advanced Multiprocessor Architecture), currently being developed in the Department of Electrical Engineering and Computer Science of the University of Zaragoza, is an SIMD array architecture optimized for computer-vision applications. Because of its high cost-effectiveness, it is a very interesting alternative for industrial systems. Papers describing the processor element of FAMA have been submitted to several conferences; this paper focuses on the rest of components that complete the architecture: controller, I/O interface and software. The controller generates instructions at a 10MHz rate, allowing efficient access to bidimensional data structures. The I/O interface is capable of reordering information for efficient I/O operations. Development tools and modules for classical computer-vision tasks are being worked on in a first stage, the implementation of models based on existing theories on human vision will follow.

  4. Using elements of game engine architecture to simulate sensor networks for eldercare.

    Science.gov (United States)

    Godsey, Chad; Skubic, Marjorie

    2009-01-01

    When dealing with a real time sensor network, building test data with a known ground truth is a tedious and cumbersome task. In order to quickly build test data for such a network, a simulation solution is a viable option. Simulation environments have a close relationship with computer game environments, and therefore there is much to be learned from game engine design. In this paper, we present our vision for a simulated in-home sensor network and describe ongoing work on using elements of game engines for building the simulator. Validation results are included to show agreement on motion sensor simulation with the physical environment.

  5. THE SYSTEM OF TECHNICAL VISION IN THE ARCHITECTURE OF THE REMOTE CONTROL SYSTEM

    Directory of Open Access Journals (Sweden)

    S. V. Shavetov

    2014-03-01

    Full Text Available The paper deals with the development of video broadcasting system in view of controlling mobile robots over the Internet. A brief overview of the issues and their solutions, encountered in the real-time broadcasting video stream, is given. Affordable and versatile solutions of technical vision are considered. An approach for frame-accurate video rebroadcasting to unlimited number of end-users is proposed. The optimal performance parameters of network equipment for the final number of cameras are defined. System approbation on five IP cameras of different manufacturers is done. The average time delay for broadcasting in MJPEG format over the local network was 200 ms and 500 ms over the Internet.

  6. Internet of Things (IoT): A Vision, Architectural Elements, and Future Directions

    OpenAIRE

    Gubbi, Jayavardhana; Buyya, Rajkumar; Marusic, Slaven; Palaniswami, Marimuthu

    2012-01-01

    Ubiquitous sensing enabled by Wireless Sensor Network (WSN) technologies cuts across many areas of modern day living. This offers the ability to measure, infer and understand environmental indicators, from delicate ecologies and natural resources to urban environments. The proliferation of these devices in a communicating-actuating network creates the Internet of Things (IoT), wherein, sensors and actuators blend seamlessly with the environment around us, and the information is shared across ...

  7. Developing a European grid infrastructure for cancer research: vision, architecture and services.

    Science.gov (United States)

    Tsiknakis, M; Rueping, S; Martin, L; Sfakianakis, S; Bucur, A; Sengstag, T; Brochhausen, M; Pucaski, J; Graf, N

    2007-01-01

    Life sciences are currently at the centre of an information revolution. The nature and amount of information now available opens up areas of research that were once in the realm of science fiction. During this information revolution, the data-gathering capabilities have greatly surpassed the data-analysis techniques. Data integration across heterogeneous data sources and data aggregation across different aspects of the biomedical spectrum, therefore, is at the centre of current biomedical and pharmaceutical R&D.This paper reports on original results from the ACGT integrated project, focusing on the design and development of a European Biomedical Grid infrastructure in support of multi-centric, post-genomic clinical trials (CTs) on cancer. Post-genomic CTs use multi-level clinical and genomic data and advanced computational analysis and visualization tools to test hypotheses in trying to identify the molecular reasons for a disease and the stratification of patients in terms of treatment.The paper provides a presentation of the needs of users involved in post-genomic CTs and presents indicative scenarios, which drive the requirements of the engineering phase of the project. Subsequently, the initial architecture specified by the project is presented, and its services are classified and discussed. A range of such key services, including the Master Ontology on sCancer, which lie at the heart of the integration architecture of the project, is presented. Special efforts have been taken to describe the methodological and technological framework of the project, enabling the creation of a legally compliant and trustworthy infrastructure. Finally, a short discussion of the forthcoming work is included, and the potential involvement of the cancer research community in further development or utilization of the infrastructure is described.

  8. A General Cognitive System Architecture Based on Dynamic Vision for Motion Control

    Directory of Open Access Journals (Sweden)

    Ernst D. Dickmanns

    2003-10-01

    Full Text Available Animation of spatio-temporal generic models for 3-D shape and motion of objects and subjects, based on feature sets evaluated in parallel from several image streams, is considered to be the core of dynamic vision. Subjects are a special kind of objects capable of sensing environmental parameters and of initiating own actions in combination with stored knowledge. Object / subject recognition and scene understanding are achieved on different levels and scales. Multiple objects are tracked individually in the image streams for perceiving their actual state ('here and now'. By analyzing motion of all relevant objects / subjects over a larger time scale on the level of state variables in the 'scene tree representation' known from computer graphics, the situation with respect to decision taking is assessed. Behavioral capabilities of subjects are represented explicitly on an abstract level for characterizing their potential behaviors. These are generated by stereotypical feed-forward and feedback control applications on a separate systems dynamics level with corresponding methods close to the actuator hardware. This dual representation on an abstract level (for decision making and on the implementation level allows for flexibility and easy adaptation or extension. Results are shown for road vehicle guidance based on three cameras on a gaze control platform.

  9. The Elements of Effective Teaching: Professional Learning Moves Vision, Framework, and Performance Standards into Action

    Science.gov (United States)

    Killion, Joellen; Hirsh, Stephanie

    2011-01-01

    Student success depends on effective teaching--not just occasionally, but every day in every classroom and school. Effective teaching impacts students' academic, physical, social-emotional, and behavioral well-being. Generating a vision, developing an instructional framework, and delineating student learning outcomes by themselves are insufficient…

  10. Computer vision

    Science.gov (United States)

    Gennery, D.; Cunningham, R.; Saund, E.; High, J.; Ruoff, C.

    1981-01-01

    The field of computer vision is surveyed and assessed, key research issues are identified, and possibilities for a future vision system are discussed. The problems of descriptions of two and three dimensional worlds are discussed. The representation of such features as texture, edges, curves, and corners are detailed. Recognition methods are described in which cross correlation coefficients are maximized or numerical values for a set of features are measured. Object tracking is discussed in terms of the robust matching algorithms that must be devised. Stereo vision, camera control and calibration, and the hardware and systems architecture are discussed.

  11. Architectural slicing

    DEFF Research Database (Denmark)

    Christensen, Henrik Bærbak; Hansen, Klaus Marius

    2013-01-01

    Architectural prototyping is a widely used practice, con- cerned with taking architectural decisions through experiments with light- weight implementations. However, many architectural decisions are only taken when systems are already (partially) implemented. This is prob- lematic in the context...... a system and a slicing criterion, architectural slicing produces an architectural prototype that contain the elements in the architecture that are dependent on the ele- ments in the slicing criterion. Furthermore, we present an initial design and implementation of an architectural slicer for Java....

  12. Governance of extended lifecycle in large-scale eHealth initiatives: analyzing variability of enterprise architecture elements.

    Science.gov (United States)

    Mykkänen, Juha; Virkanen, Hannu; Tuomainen, Mika

    2013-01-01

    The governance of large eHealth initiatives requires traceability of many requirements and design decisions. We provide a model which we use to conceptually analyze variability of several enterprise architecture (EA) elements throughout the extended lifecycle of development goals using interrelated projects related to the national ePrescription in Finland.

  13. Collision detection of convex polyhedra on the NVIDIA GPU architecture for the discrete element method

    CSIR Research Space (South Africa)

    Govender, Nicolin

    2015-09-01

    Full Text Available consideration due to the architectural differences between CPU and GPU platforms. This paper describes the DEM algorithms and heuristics that are optimized for the parallel NVIDIA Kepler GPU architecture in detail. This includes a GPU optimized collision...

  14. Development of an Image Fringe Zero Selection System for Structuring Elements with Stereo Vision Disparity Measurements

    Energy Technology Data Exchange (ETDEWEB)

    Grindley, Josef E; Jiang Lin; Tickle, Andrew J, E-mail: joegrindley@hotmail.com, E-mail: production_leader@hotmail.com [School of Electrical Engineering, Electronics and Computer Science, University of Liverpool, Liverpool L69 3GJ (United Kingdom)

    2011-08-17

    When performing image operations involving Structuring Element (SE) and many transforms it is required that the outside of the image be padded with zeros or ones depending on the operation. This paper details how this can be achieved with simulated hardware using DSP Builder in Matlab with the intention of migrating the design to HDL (Hardware Description Language) and implemented on an FPGA (Field Programmable Gate Array). The design takes few resources and does not require extra memory to account for the change in size of the output image.

  15. New vision in space-time: architecture and photography in the experimental photo-practice of Moholy-Nagy

    OpenAIRE

    Burke, T

    2016-01-01

    This paper will explore the relationship between photography and architecture in the work of Moholy-Nagy, through an exploration of its spatial properties. Developing a critical theory around spatial relationships that occur in the artistic production, the paper argues for Moholy-Nagy’s work to be seen as a hybrid form of avant-garde experimentation that bridges the medium of both photography and architecture, and draws into question the qualities of each. By exploring this int...

  16. Cellulose as an Architectural Element in Spatially Structured Escherichia coli Biofilms

    Science.gov (United States)

    Serra, Diego O.; Richter, Anja M.

    2013-01-01

    Morphological form in multicellular aggregates emerges from the interplay of genetic constitution and environmental signals. Bacterial macrocolony biofilms, which form intricate three-dimensional structures, such as large and often radially oriented ridges, concentric rings, and elaborate wrinkles, provide a unique opportunity to understand this interplay of “nature and nurture” in morphogenesis at the molecular level. Macrocolony morphology depends on self-produced extracellular matrix components. In Escherichia coli, these are stationary phase-induced amyloid curli fibers and cellulose. While the widely used “domesticated” E. coli K-12 laboratory strains are unable to generate cellulose, we could restore cellulose production and macrocolony morphology of E. coli K-12 strain W3110 by “repairing” a single chromosomal SNP in the bcs operon. Using scanning electron and fluorescence microscopy, cellulose filaments, sheets and nanocomposites with curli fibers were localized in situ at cellular resolution within the physiologically two-layered macrocolony biofilms of this “de-domesticated” strain. As an architectural element, cellulose confers cohesion and elasticity, i.e., tissue-like properties that—together with the cell-encasing curli fiber network and geometrical constraints in a growing colony—explain the formation of long and high ridges and elaborate wrinkles of wild-type macrocolonies. In contrast, a biofilm matrix consisting of the curli fiber network only is brittle and breaks into a pattern of concentric dome-shaped rings separated by deep crevices. These studies now set the stage for clarifying how regulatory networks and in particular c-di-GMP signaling operate in the three-dimensional space of highly structured and “tissue-like” bacterial biofilms. PMID:24097954

  17. Ideas for Teaching Vision and Visioning

    Science.gov (United States)

    Quijada, Maria Alejandra

    2017-01-01

    In teaching leadership, a key element to include should be a discussion about vision: what it is, how to communicate it, and how to ensure that it is effective and shared. This article describes a series of exercises that rely on videos to illustrate different aspects of vision and visioning, both in the positive and in the negative. The article…

  18. Voxel-based approach to generate entire human metacarpal bone with microscopic architecture for finite element analysis.

    Science.gov (United States)

    Tang, C Y; Tsui, C P; Tang, Y M; Wei, L; Wong, C T; Lam, K W; Ip, W Y; Lu, W W J; Pang, M Y C

    2014-01-01

    With the development of micro-computed tomography (micro-CT) technology, it is possible to construct three-dimensional (3D) models of human bone without destruction of samples and predict mechanical behavior of bone using finite element analysis (FEA). However, due to large number of elements required for constructing the FE models of entire bone, this demands a substantial computational effort and the analysis usually needs a high level of computer. In this article, a voxel-based approach for generation of FE models of entire bone with microscopic architecture from micro-CT image data is proposed. To enable the FE analyses of entire bone to be run even on a general personal computer, grayscale intensity thresholds were adopted to reduce the amount of elements. Human metacarpal bone (MCP) bone was used as an example for demonstrating the applicability of the proposed method. The micro-CT images of the MCP bone were combined and converted into 3D array of pixels. Dual grayscale intensity threshold parameters were used to distinguish the pixels of bone tissues from those of surrounding soft tissues and improve predictive accuracy for the FE analyses with different sizes of elements. The method of selecting an appropriate value of the second grayscale intensity threshold was also suggested to minimize the area error for the reconstructed cross-sections of a FE structure. Experimental results showed that the entire FE MCP bone with microscopic architecture could be modeled and analyzed on a personal computer with reasonable accuracy.

  19. THE MEDIEVAL AND OTTOMAN HAMMAMS OF ALGERIA; ELEMENTS FOR A HISTORICAL STUDY OF BATHS ARCHITECTURE IN NORTH AFRICA

    Directory of Open Access Journals (Sweden)

    Nabila Cherif-Seffadj

    2009-03-01

    Full Text Available Algerian medinas (Islamic cities have several traditional public baths (hammams. However, these hammams are the least known in the Maghreb countries. The first French archaeological surveys carried out on Islamic monuments and sites in Algeria, have found few historic baths in medieval towns. All along the highlands route, from Algiers (capital city of Algeria located in the North to Tlemcen (city in the Western part of Algeria, these structures are found in all the cities founded after the Islamic religion expanded in the Western North Africa. These buildings are often associated to large mosques. In architectural history, these baths illustrate original spatial and organizational compositions under form proportions, methods of construction, ornamental elements and the technical skills of their builders. The ancient traditions of bathing interpreted in this building type are an undeniable legacy. They are present through architectural typology and technical implementation reflecting the important architectural heritage of the great Roman cities in Algeria. Furthermore, these traditions and buildings evolved through different eras. Master builders, who left Andalusia to seek refuge in the Maghreb countries, added the construction and ornamentation skills and techniques brought from Muslim Spain, while the Ottomans contribution in the history of many urban cities is important. Hence, the dual appellation of the hammam as “Moorish bath” and “Turkish bath” in Algeria is the perfect illustration of the evolution of bath architecture in Algeria.

  20. Elements of regional architecture in the works of architect Ivan Antić

    Directory of Open Access Journals (Sweden)

    Milašinović-Marić Dijana

    2017-01-01

    Full Text Available The body of work of Ivan Antić (Belgrade, 1923-2005, one of the most important Serbian architects who created his works in the period from 1955 to 1990, represents almost a reification of ideals of the times he lived in, both in terms of form and in structural and substantive terms. His work is placed within a rationalistic concept which is essentially experienced as an undisturbed harmony between his personality and the contemporary architectural expression. However, besides such way of interpretation, his architecture also includes examples indicating the thinking about the folk tradition, architectural heritage, the primordial, as well as the archetypal, typical for a region. In the context of the body of work of architect Ivan Antić, this paper will particularly place accent and track such threads of thinking which are, in an obvious or transparent sense, expressed in a series of realized solutions and designs such as the Guard's Home in Dedinje (Belgrade, 1957-1958, Children's Home (Jermenovci, 1956-1957, Museum of the Genocide in Šumarice which he designed together with I. Raspopović (Kragujevac, 1968-1975, 'Politika' Cultural Centre (Krupanj, 1976-1981, '25th May' Sports Center (Belgrade, 1971-1973, or his own house in Lisović near Belgrade. All the abovementioned buildings, as well as numerous other, which belong at the top of Serbian architecture, reflect the spirit of the time in which he created them. They clearly indicate the unbreakable bond which exists in architecture between the inherited, vernacular, contemporary and personal architect's attitude.

  1. Technology of Oak Architectural and Decorative Elements Manufacturing for Iconostasis Recreating in Krestovozdvizhensky Temple in Village of Syrostan, Chelyabinsk region

    Science.gov (United States)

    Yudin, V.

    2017-11-01

    Due to the historical peculiarities of Russia, by the end of the 20th century many temples were destroyed or they lost their iconostases which most often were made of wood. When it became necessary to revive the traditional craft it turned out that it was lost almost completely which negatively affects the quality of the wooden iconostases restoration and their new construction. The article aims to fill the loss of knowledge and skills that make up the content of one of the most interesting types of the architectural and monumental and decorative art through study of the forms of preserved fragments once being a very rich historical and cultural heritage. Similar works on the study of wooden iconostases aimed at the recreation of oak decorative wooden elements and restoration practice have not been performed so far which gives it a character of particular relevance for the architectural science. New and relevant technological improvements are not rejected but skillfully introduced into the arsenal of techniques and means of modern restorers and carvers to facilitate the recovery of iconostasis construction from a crisis state and the transition to the subsequent continuation of the tradition development. The deep knowledge of the research subject allowed one to use oak decorative elements in the manufacture for recreating the iconostasis of the Krestovozdvizhensky temple in the village of Syrostan, the Chelyabinsk region. This material is undoubtedly of a scientific and reference nature as well as economic efficiency for all those who wish to join the noble traditional iconostasis making art.

  2. The blind brain: how (lack of) vision shapes the morphological and functional architecture of the human brain.

    Science.gov (United States)

    Ricciardi, Emiliano; Handjaras, Giacomo; Pietrini, Pietro

    2014-11-01

    Since the early days, how we represent the world around us has been a matter of philosophical speculation. Over the last few decades, modern neuroscience, and specifically the development of methodologies for the structural and the functional exploration of the brain have made it possible to investigate old questions with an innovative approach. In this brief review, we discuss the main findings from a series of brain anatomical and functional studies conducted in sighted and congenitally blind individuals by our's and others' laboratories. Historically, research on the 'blind brain' has focused mainly on the cross-modal plastic changes that follow sensory deprivation. More recently, a novel line of research has been developed to determine to what extent visual experience is truly required to achieve a representation of the surrounding environment. Overall, the results of these studies indicate that most of the brain fine morphological and functional architecture is programmed to develop and function independently from any visual experience. Distinct cortical areas are able to process information in a supramodal fashion, that is, independently from the sensory modality that carries that information to the brain. These observations strongly support the hypothesis of a modality-independent, i.e. more abstract, cortical organization, and may contribute to explain how congenitally blind individuals may interact efficiently with an external world that they have never seen. © 2014 by the Society for Experimental Biology and Medicine.

  3. Low Vision

    Science.gov (United States)

    ... USAJobs Home > Statistics and Data > Low Vision Low Vision Low Vision Defined: Low Vision is defined as the best- ... 2010 U.S. Age-Specific Prevalence Rates for Low Vision by Age, and Race/Ethnicity Table for 2010 ...

  4. From structure from motion to historical building information modeling: populating a semantic-aware library of architectural elements

    Science.gov (United States)

    Santagati, Cettina; Lo Turco, Massimiliano

    2017-01-01

    In recent years, we have witnessed a huge diffusion of building information modeling (BIM) approaches in the field of architectural design, although very little research has been undertaken to explore the value, criticalities, and advantages attributable to the application of these methodologies in the cultural heritage domain. Furthermore, the last developments in digital photogrammetry lead to the easy generation of reliable low-cost three-dimensional textured models that could be used in BIM platforms to create semantic-aware objects that could compose a specific library of historical architectural elements. In this case, the transfer between the point cloud and its corresponding parametric model is not so trivial and the level of geometrical abstraction could not be suitable with the scope of the BIM. The aim of this paper is to explore and retrace the milestone works on this crucial topic in order to identify the unsolved issues and to propose and test a unique and simple workflow practitioner centered and based on the use of the latest available solutions for point cloud managing into commercial BIM platforms.

  5. Implementation of a blade element UH-60 helicopter simulation on a parallel computer architecture in real-time

    Science.gov (United States)

    Moxon, Bruce C.; Green, John A.

    1990-01-01

    A high-performance platform for development of real-time helicopter flight simulations based on a simulation development and analysis platform combining a parallel simulation development and analysis environment with a scalable multiprocessor computer system is described. Simulation functional decomposition is covered, including the sequencing and data dependency of simulation modules and simulation functional mapping to multiple processors. The multiprocessor-based implementation of a blade-element simulation of the UH-60 helicopter is presented, and a prototype developed for a TC2000 computer is generalized in order to arrive at a portable multiprocessor software architecture. It is pointed out that the proposed approach coupled with a pilot's station creates a setting in which simulation engineers, computer scientists, and pilots can work together in the design and evaluation of advanced real-time helicopter simulations.

  6. Transposable Elements versus the Fungal Genome: Impact on Whole-Genome Architecture and Transcriptional Profiles.

    Directory of Open Access Journals (Sweden)

    Raúl Castanera

    2016-06-01

    Full Text Available Transposable elements (TEs are exceptional contributors to eukaryotic genome diversity. Their ubiquitous presence impacts the genomes of nearly all species and mediates genome evolution by causing mutations and chromosomal rearrangements and by modulating gene expression. We performed an exhaustive analysis of the TE content in 18 fungal genomes, including strains of the same species and species of the same genera. Our results depicted a scenario of exceptional variability, with species having 0.02 to 29.8% of their genome consisting of transposable elements. A detailed analysis performed on two strains of Pleurotus ostreatus uncovered a genome that is populated mainly by Class I elements, especially LTR-retrotransposons amplified in recent bursts from 0 to 2 million years (My ago. The preferential accumulation of TEs in clusters led to the presence of genomic regions that lacked intra- and inter-specific conservation. In addition, we investigated the effect of TE insertions on the expression of their nearby upstream and downstream genes. Our results showed that an important number of genes under TE influence are significantly repressed, with stronger repression when genes are localized within transposon clusters. Our transcriptional analysis performed in four additional fungal models revealed that this TE-mediated silencing was present only in species with active cytosine methylation machinery. We hypothesize that this phenomenon is related to epigenetic defense mechanisms that are aimed to suppress TE expression and control their proliferation.

  7. The Genomic Architecture of Novel Simulium damnosum Wolbachia Prophage Sequence Elements and Implications for Onchocerciasis Epidemiology

    Directory of Open Access Journals (Sweden)

    James L. Crainey

    2017-05-01

    Full Text Available Research interest in Wolbachia is growing as new discoveries and technical advancements reveal the public health importance of both naturally occurring and artificial infections. Improved understanding of the Wolbachia bacteriophages (WOs WOcauB2 and WOcauB3 [belonging to a sub-group of four WOs encoding serine recombinases group 1 (sr1WOs], has enhanced the prospect of novel tools for the genetic manipulation of Wolbachia. The basic biology of sr1WOs, including host range and mode of genomic integration is, however, still poorly understood. Very few sr1WOs have been described, with two such elements putatively resulting from integrations at the same Wolbachia genome loci, about 2 kb downstream from the FtsZ cell-division gene. Here, we characterize the DNA sequence flanking the FtsZ gene of wDam, a genetically distinct line of Wolbachia isolated from the West African onchocerciasis vector Simulium squamosum E. Using Roche 454 shot-gun and Sanger sequencing, we have resolved >32 kb of WO prophage sequence into three contigs representing three distinct prophage elements. Spanning ≥36 distinct WO open reading frame gene sequences, these prophage elements correspond roughly to three different WO modules: a serine recombinase and replication module (sr1RRM, a head and base-plate module and a tail module. The sr1RRM module contains replication genes and a Holliday junction recombinase and is unique to the sr1 group WOs. In the extreme terminal of the tail module there is a SpvB protein homolog—believed to have insecticidal properties and proposed to have a role in how Wolbachia parasitize their insect hosts. We propose that these wDam prophage modules all derive from a single WO genome, which we have named here sr1WOdamA1. The best-match database sequence for all of our sr1WOdamA1-predicted gene sequences was annotated as of Wolbachia or Wolbachia phage sourced from an arthropod. Clear evidence of exchange between sr1WOdamA1 and other Wolbachia

  8. Common architecture of nuclear receptor heterodimers on DNA direct repeat elements with different spacings.

    Science.gov (United States)

    Rochel, Natacha; Ciesielski, Fabrice; Godet, Julien; Moman, Edelmiro; Roessle, Manfred; Peluso-Iltis, Carole; Moulin, Martine; Haertlein, Michael; Callow, Phil; Mély, Yves; Svergun, Dmitri I; Moras, Dino

    2011-05-01

    Nuclear hormone receptors (NHRs) control numerous physiological processes through the regulation of gene expression. The present study provides a structural basis for understanding the role of DNA in the spatial organization of NHR heterodimers in complexes with coactivators such as Med1 and SRC-1. We have used SAXS, SANS and FRET to determine the solution structures of three heterodimer NHR complexes (RXR-RAR, PPAR-RXR and RXR-VDR) coupled with the NHR interacting domains of coactivators bound to their cognate direct repeat elements. The structures show an extended asymmetric shape and point to the important role played by the hinge domains in establishing and maintaining the integrity of the structures. The results reveal two additional features: the conserved position of the ligand-binding domains at the 5' ends of the target DNAs and the binding of only one coactivator molecule per heterodimer, to RXR's partner.

  9. Trabecular architecture of the manual elements reflects locomotor patterns in primates.

    Directory of Open Access Journals (Sweden)

    Stacey A Matarazzo

    Full Text Available The morphology of trabecular bone has proven sensitive to loading patterns in the long bones and metacarpal heads of primates. It is expected that we should also see differences in the manual digits of primates that practice different methods of locomotion. Primate proximal and middle phalanges are load-bearing elements that are held in different postures and experience different mechanical strains during suspension, quadrupedalism, and knuckle walking. Micro CT scans of the middle phalanx, proximal phalanx and the metacarpal head of the third ray were used to examine the pattern of trabecular orientation in Pan, Gorilla, Pongo, Hylobates and Macaca. Several zones, i.e., the proximal ends of both phalanges and the metacarpal heads, were capable of distinguishing between knuckle-walking, quadrupedal, and suspensory primates. Orientation and shape seem to be the primary distinguishing factors but differences in bone volume, isotropy index, and degree of anisotropy were seen across included taxa. Suspensory primates show primarily proximodistal alignment in all zones, and quadrupeds more palmar-dorsal orientation in several zones. Knuckle walkers are characterized by having proximodistal alignment in the proximal ends of the phalanges and a palmar-dorsal alignment in the distal ends and metacarpal heads. These structural differences may be used to infer locmotor propensities of extinct primate taxa.

  10. Trabecular architecture of the manual elements reflects locomotor patterns in primates.

    Science.gov (United States)

    Matarazzo, Stacey A

    2015-01-01

    The morphology of trabecular bone has proven sensitive to loading patterns in the long bones and metacarpal heads of primates. It is expected that we should also see differences in the manual digits of primates that practice different methods of locomotion. Primate proximal and middle phalanges are load-bearing elements that are held in different postures and experience different mechanical strains during suspension, quadrupedalism, and knuckle walking. Micro CT scans of the middle phalanx, proximal phalanx and the metacarpal head of the third ray were used to examine the pattern of trabecular orientation in Pan, Gorilla, Pongo, Hylobates and Macaca. Several zones, i.e., the proximal ends of both phalanges and the metacarpal heads, were capable of distinguishing between knuckle-walking, quadrupedal, and suspensory primates. Orientation and shape seem to be the primary distinguishing factors but differences in bone volume, isotropy index, and degree of anisotropy were seen across included taxa. Suspensory primates show primarily proximodistal alignment in all zones, and quadrupeds more palmar-dorsal orientation in several zones. Knuckle walkers are characterized by having proximodistal alignment in the proximal ends of the phalanges and a palmar-dorsal alignment in the distal ends and metacarpal heads. These structural differences may be used to infer locmotor propensities of extinct primate taxa.

  11. Experiencing space without vision

    OpenAIRE

    Evyapan, Naz A. G. Z.

    1997-01-01

    Ankara : Bilkent Univ., Department of Interior Architecture and Environmental Design and Institute of Fine Arts, 1997. Thesis (Master's) -- Bilkent University, 1997. Includes bibliographical references. In this study, the human body without vision, and its relation with the surrounding space, is examined. Towards this end, firstly space and the human body are briefly discussed. the sense modalities apart from vision, and the development of spatial cognition for the blind and visually...

  12. The relationship between the traditional and contemporary elements in the church architecture of the Western Christian countries in the 20th century

    Directory of Open Access Journals (Sweden)

    Manić Božidar

    2015-01-01

    Full Text Available Church architecture has been developing continually within Western Christianity since the 4th century, It gradually becomes less important from the end of the Middle Ages, especially with the advent of the ideas of Reformation and Enlightment, going almost out of the focus of contemporary architecture with the advent of modernism in the 20th century. The most important factors for the development of this building type in the 20th century, were the emergence of modernism in architecture and strengthening of the movements of liturgical renewal. It was a time in which the diametrically opposed concepts - radically modernizing and conservatively traditional - were expressed to the extreme, with many transitional forms, Striving to active participation of believers can lead to completely different results - strengthening the liturgical assembly, on one hand, and radical desacralisation of worship, on the other. There is a large number of architectural solutions, some of which share common characteristics concerning spatial organization and the distribution of laity and clergy, but with a great diversity of other architectural characteristics and different relations of traditional and contemporary elements. The experiences of Western Christian countries can be of use, to some extent, in the research of contemporary Orthodox church architecture.

  13. High-precision vision-based mobile augmented reality system for context-aware architectural, engineering, construction and facility management (AEC/FM) applications

    National Research Council Canada - National Science Library

    Bae, Hyojoon; Golparvar-Fard, Mani; White, Jules

    2013-01-01

    ... devices.This paper presents a new vision-based mobile augmented reality system that allows field personnel to query and access 3D cyber-information on-site by using photographs taken from standard mobile devices...

  14. A Vision-Based Driver Nighttime Assistance and Surveillance System Based on Intelligent Image Sensing Techniques and a Heterogamous Dual-Core Embedded System Architecture

    Directory of Open Access Journals (Sweden)

    Jenq-Haur Wang

    2012-02-01

    Full Text Available This study proposes a vision-based intelligent nighttime driver assistance and surveillance system (VIDASS system implemented by a set of embedded software components and modules, and integrates these modules to accomplish a component-based system framework on an embedded heterogamous dual-core platform. Therefore, this study develops and implements computer vision and sensing techniques of nighttime vehicle detection, collision warning determination, and traffic event recording. The proposed system processes the road-scene frames in front of the host car captured from CCD sensors mounted on the host vehicle. These vision-based sensing and processing technologies are integrated and implemented on an ARM-DSP heterogamous dual-core embedded platform. Peripheral devices, including image grabbing devices, communication modules, and other in-vehicle control devices, are also integrated to form an in-vehicle-embedded vision-based nighttime driver assistance and surveillance system.

  15. A Reference Architecture for Provisioning of Tools as a Service: Meta-Model, Ontologies and Design Elements

    DEFF Research Database (Denmark)

    Chauhan, Muhammad Aufeef; Babar, Muhammad Ali; Sheng, Quan Z.

    2016-01-01

    Software Architecture (SA) plays a critical role in designing, developing and evolving cloud-based platforms that can be used to provision different types of services to consumers on demand. In this paper, we present a Reference Architecture (RA) for designing cloud-based Tools as a service SPACE...... (TSPACE) for provisioning a bundled suite of tools by following the Software as a Service (SaaS) model. The reference architecture has been designed by leveraging information structuring approaches and by using well-known architecture design principles and patterns. The RA has been documented using view...... to provision tools for software architecting. We have also evaluated the RA in terms of effectiveness of the design decisions and the RA’s completeness and feasibility using scenario-based architecture evaluation method. The proposed TSPACE RA can provide valuable insights to information structure approaches...

  16. A Reference Architecture for Provisioning of Tools as a Service: Meta-Model, Ontologies and Design Elements

    DEFF Research Database (Denmark)

    Chauhan, Muhammad Aufeef; Babar, Muhammad Ali; Sheng, Quan Z.

    2016-01-01

    to provision tools for software architecting. We have also evaluated the RA in terms of effectiveness of the design decisions and the RA’s completeness and feasibility using scenario-based architecture evaluation method. The proposed TSPACE RA can provide valuable insights to information structure approaches......Software Architecture (SA) plays a critical role in designing, developing and evolving cloud-based platforms that can be used to provision different types of services to consumers on demand. In this paper, we present a Reference Architecture (RA) for designing cloud-based Tools as a service SPACE...... (TSPACE) for provisioning a bundled suite of tools by following the Software as a Service (SaaS) model. The reference architecture has been designed by leveraging information structuring approaches and by using well-known architecture design principles and patterns. The RA has been documented using view...

  17. KiWi Vision

    DEFF Research Database (Denmark)

    Schaffert, Sebastian; Bry, Francois; Dolog, Peter

    This deliverable describes the common vision of the KiWi project, ranging from motivation over use cases and usage scenarios to user interaction, system architecture and technologies, and the research that is performed as part of the project. The deliverable is intended for a wide audience to give...

  18. Vision eller verklighet?

    DEFF Research Database (Denmark)

    Andersson, Jonas E

    2012-01-01

    and drawing analysis. This study suggests that there is a gap between reality and visions. Despite research-based guidelines, the architecture of contemporary residential care homes relies on universal qualities that are associated with the home environment rather than with the particular conditions...

  19. Architectural freedom and industrialised architecture

    DEFF Research Database (Denmark)

    Vestergaard, Inge

    2012-01-01

    strategies which architects can use - to give the individual project attitudes and designs with architectural quality. Through the customized component production it is possible to choose many different proportions, to organize the process at site choosing either one room components or several rooms......Architectural freedom and industrialized architecture. Inge Vestergaard, Associate Professor, Cand. Arch. Aarhus School of Architecture, Denmark Noerreport 20, 8000 Aarhus C Telephone +45 89 36 0000 E-mai l inge.vestergaard@aarch.dk Based on the repetitive architecture from the "building boom" 1960...... to 1973 it is discussed how architects can handle these Danish element and montage buildings through the transformation to upgraded aesthetical, functional and energy efficient architecture. The method used is analysis of cases, parallels to literature studies and producer interviews. This analysis...

  20. Low Vision Aids and Low Vision Rehabilitation

    Science.gov (United States)

    ... Low Vision Aids Low Vision Resources Low Vision Rehabilitation and Low Vision Aids Leer en Español: La ... that same viewing direction for other objects. Vision rehabilitation: using the vision you have Vision rehabilitation is ...

  1. Vision Lab

    Data.gov (United States)

    Federal Laboratory Consortium — The Vision Lab personnel perform research, development, testing and evaluation of eye protection and vision performance. The lab maintains and continues to develop...

  2. Integrated application of in situ non destructive techniques for the evaluation of the architectural elements of monumental structures.

    Science.gov (United States)

    Fais, Silvana; Casula, Giuseppe; Cuccuru, Francesco; Ligas, Paola; Bianchi, Maria Giovanna; Marraccini, Alessandro

    2017-04-01

    The need to integrate different non invasive geophysical datasets for an effective diagnostic process of the stone materials of cultural heritage buildings is due to the complexity of the intrinsic characteristics of the different types of stones and of their degradation process. Consequently integration between different geophysical techniques is required for the characterization of stone building materials. In order to perform the diagnostic process by different non-invasive techniques thus interpreting in a realistic way the different geophysical parameters, it is necessary to link the petrophysical characteristics of stones with the geophysical ones. In this study the complementary application of three different non invasive techniques (terrestrial laser scanner (TLS), infrared thermography and ultrasonic surface and tomography measurements) was carried out to analyse the conservation state and quality of the carbonate building materials of three inner columns of the old precious church of San Lorenzo in the historical city center of Cagliari (Sardinia). In previous works (Casula et al., 2009; Fais et al., 2015), especially the integrated application of TLS and ultrasonic techniques has been demonstrated to represent a powerful tool in evaluating the quality of the stone building materials by solving or limiting the uncertainties typical of all indirect methods. Thanks to the terrestrial laser scanner (TLS) technique it was possible to 3D model the investigated columns and their surface geometrical anomalies. The TLS measurements were complemented by several ultrasonic in situ and laboratory tests in the 24kHz - 54kHz range. The ultrasonic parameters, especially longitudinal and transversal velocities, allow to recover information on materials related with mechanical properties. A good correlation between TLS surface geometrical anomalies and the ultrasonic velocity ones is evident at the surface and in shallow parts of the investigated architectural elements

  3. Software architecture 1

    CERN Document Server

    Oussalah , Mourad Chabane

    2014-01-01

    Over the past 20 years, software architectures have significantly contributed to the development of complex and distributed systems. Nowadays, it is recognized that one of the critical problems in the design and development of any complex software system is its architecture, i.e. the organization of its architectural elements. Software Architecture presents the software architecture paradigms based on objects, components, services and models, as well as the various architectural techniques and methods, the analysis of architectural qualities, models of representation of architectural template

  4. Software architecture 2

    CERN Document Server

    Oussalah, Mourad Chabanne

    2014-01-01

    Over the past 20 years, software architectures have significantly contributed to the development of complex and distributed systems. Nowadays, it is recognized that one of the critical problems in the design and development of any complex software system is its architecture, i.e. the organization of its architectural elements. Software Architecture presents the software architecture paradigms based on objects, components, services and models, as well as the various architectural techniques and methods, the analysis of architectural qualities, models of representation of architectural templa

  5. Stereo Vision Inside Tire

    Science.gov (United States)

    2015-08-21

    1 Stereo Vision Inside Tire P.S. Els C.M. Becker University of Pretoria W911NF-14-1-0590 Final... Stereo Vision Inside Tire 5a. CONTRACT NUMBER W911NF-14-1-0590 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S) Prof PS Els CM...on the development of a stereo vision system that can be mounted inside a rolling tire, known as T2-CAM for Tire-Terrain CAMera. The T2-CAM system

  6. Changes in cis-regulatory elements of a key floral regulator are associated with divergence of inflorescence architectures

    NARCIS (Netherlands)

    Kusters, E.; Della Pina, S.; Castel, R.; Souer, E.; Koes, R.

    2015-01-01

    Higher plant species diverged extensively with regard to the moment (flowering time) and position (inflorescence architecture) at which flowers are formed. This seems largely caused by variation in the expression patterns of conserved genes that specify floral meristem identity (FMI), rather than

  7. Changes in cis-regulatory elements of a key floral regulator are associated with divergence of inflorescence architectures.

    NARCIS (Netherlands)

    Kusters, E.; Della Pina, S.; Castel, R.; Souer, E.J.; Koes, R.E.

    2015-01-01

    Higher plant species diverged extensively with regard to the moment (flowering time) and position (inflorescence architecture) at which flowers are formed. This seems largely caused by variation in the expression patterns of conserved genes that specify floral meristem identity (FMI), rather than

  8. Empirically-grounded Reference Architectures : A Proposal

    NARCIS (Netherlands)

    Galster, Matthias; Avgeriou, Paris

    2011-01-01

    A reference architecture describes core elements of the software architecture for systems that stem from the same domain. A reference architecture ensures interoperability of systems through standardization. It also facilitates the instantiation of new concrete architectures. However, we currently

  9. Vision Screening

    Science.gov (United States)

    ... Corneal Abrasions Dilating Eye Drops Lazy eye (defined) Pink eye (defined) Retinopathy of Prematurity Strabismus Stye (defined) Vision ... Corneal Abrasions Dilating Eye Drops Lazy eye (defined) Pink eye (defined) Retinopathy of Prematurity Strabismus Stye (defined) Vision ...

  10. Computational vision

    CERN Document Server

    Wechsler, Harry

    1990-01-01

    The book is suitable for advanced courses in computer vision and image processing. In addition to providing an overall view of computational vision, it contains extensive material on topics that are not usually covered in computer vision texts (including parallel distributed processing and neural networks) and considers many real applications.

  11. Architectural Mealscapes

    DEFF Research Database (Denmark)

    Tvedebrink, Tenna Doktor Olsen; Fisker, Anna Marie; Kirkegaard, Poul Henning

    2012-01-01

    the German architect Gottfried Semper developed a theory on the “four elements of Architecture” tracing the origin of architecture back to the rise of the early human settlement and the creation of fire. With the notion ‘hearth’ as the first motive in architecture and the definition of three enclosing...... motives; mounding, enclosure and roof, Semper linked the cultural and social values of the primordial fireplace with the order and shape of architecture. He claimed that any building ever made was nothing but a variation of the first primitive shelters erected around the fireplace, and that the three...... enclosing motives existed only as defenders of the “sacred flame”. In that way Semper developed the idea that any architectural scenery can be described, analyzed and explained by understanding the contextual, symbolic and social values of how the four basic motives of hearth, mounding, enclosure, and roof...

  12. Architectural freedom and industrialized architecture

    DEFF Research Database (Denmark)

    Vestergaard, Inge

    2012-01-01

    proportions, to organize the process on site choosing either one room wall components or several rooms wall components – either horizontally or vertically. Combined with the seamless joint the playing with these possibilities the new industrialized architecture can deliver variations in choice of solutions......Based on the repetitive architecture from the “building boom” from 1960 to 1973, it is discussed how architects can handle these Danish element and montage buildings through the transformation to upgraded aesthetical, functional and energy efficient architecture. The method used is analysis...... of cases, parallels to literature studies and client and producer interviews. The analysis compares best practice in Denmark and best practice in Austria. Modern architects accepted the fact that industrialized architecture told the storey of repetition and monotony as basic condition. This article aims...

  13. Colour, vision and ergonomics.

    Science.gov (United States)

    Pinheiro, Cristina; da Silva, Fernando Moreira

    2012-01-01

    This paper is based on a research project - Visual Communication and Inclusive Design-Colour, Legibility and Aged Vision, developed at the Faculty of Architecture of Lisbon. The research has the aim of determining specific design principles to be applied to visual communication design (printed) objects, in order to be easily read and perceived by all. This study target group was composed by a selection of socially active individuals, between 55 and 80 years, and we used cultural events posters as objects of study and observation. The main objective is to overlap the study of areas such as colour, vision, older people's colour vision, ergonomics, chromatic contrasts, typography and legibility. In the end we will produce a manual with guidelines and information to apply scientific knowledge into the communication design projectual practice. Within the normal aging process, visual functions gradually decline; the quality of vision worsens, colour vision and contrast sensitivity are also affected. As people's needs change along with age, design should help people and communities, and improve life quality in the present. Applying principles of visually accessible design and ergonomics, the printed design objects, (or interior spaces, urban environments, products, signage and all kinds of visually information) will be effective, easier on everyone's eyes not only for visually impaired people but also for all of us as we age.

  14. The NPOESS Preparatory Project Science Data Segment (SDS) Data Depository and Distribution Element (SD3E) System Architecture

    Science.gov (United States)

    Ho, Evelyn L.; Schweiss, Robert J.

    2008-01-01

    The National Polar-orbiting Operational Environmental Satellite System (NPOESS) Preparatory Project (NPP) Science Data Segment (SDS) will make daily data requests for approximately six terabytes of NPP science products for each of its six environmental assessment elements from the operational data providers. As a result, issues associated with duplicate data requests, data transfers of large volumes of diverse products, and data transfer failures raised concerns with respect to the network traffic and bandwidth consumption. The NPP SDS Data Depository and Distribution Element (SD3E) was developed to provide a mechanism for efficient data exchange, alleviate duplicate network traffic, and reduce operational costs.

  15. Vision: Essential Scaffolding

    Science.gov (United States)

    Murphy, Joseph; Torre, Daniela

    2015-01-01

    Few concepts are more noted in the leadership effects research than vision. It is a cardinal element in the school improvement equation as well. Yet, it remains one of the least well-specified components of that algorithm. Based on a comprehensive review of the research on effective leadership and school improvement from 1995 to 2012, we bring…

  16. Production of Curved Precast Concrete Elements for Shell Structures and Free-form Architecture using the Flexible Mould Method

    NARCIS (Netherlands)

    Schipper, H.R.; Grünewald, S.; Eigenraam, P.; Raghunath, P.; Kok, M.A.D.

    2014-01-01

    Free-form buildings tend to be expensive. By optimizing the production process, economical and well-performing precast concrete structures can be manufactured. In this paper, a method is presented that allows producing highly accurate double curved-elements without the need for milling two expensive

  17. MxaJ structure reveals a periplasmic binding protein-like architecture with unique secondary structural elements.

    Science.gov (United States)

    Myung Choi, Jin; Cao, Thinh-Phat; Wouk Kim, Si; Ho Lee, Kun; Haeng Lee, Sung

    2017-07-01

    MxaJ is a component of type II methanol dehydrogenase (MDH) that mediates electron transfer during methanol oxidation in methanotrophic bacteria. However, little is known about how MxaJ structurally cooperates with MDH and Cytochrome c L . Here, we report for the first time the crystal structure of MxaJ. MxaJ consists of eight α-helices and six β-strands, and resembles the "bi-lobate" folding architecture found in periplasmic binding proteins. Distinctive features of MxaJ include prominent loops and a β-strand around the hinge region supporting the ligand-binding cavity, which might provide a more favorable framework for interacting with proteins rather than small molecules. Proteins 2017; 85:1379-1386. © 2017 Wiley Periodicals, Inc. © 2017 Wiley Periodicals, Inc.

  18. Pre-attentive and attentive vision module

    NARCIS (Netherlands)

    Nyamsuren, Enkhbold; Taatgen, Niels A.

    This paper introduces a new vision module, called PAAV, developed for the cognitive architecture ACT-R. Unlike ACT-R's default vision module that was originally developed for top-down perception only, PAAV was designed to model a wide range of tasks, such as visual search and scene viewing, where

  19. Core Structure Elements Architectures to Facilitate Construction and Secure Interconnection of Mobile Services Frameworks and Advanced IAM Systems

    Science.gov (United States)

    Karantjias, Athanasios; Polemi, Nineta

    The impressing penetration rates of electronic and mobile networks provide the unique opportunity to organizations to provide advanced e/m-services, accelerating their entrance in the digital society, and strengthening their fundamental structure. Service Oriented Architectures (SOAs) is an acknowledged promising technology to overcome the complexity inherent to the communication among multiple e-business actors across organizational domains. Nevertheless, the need for more privacy-aware transactions raises specific challenges that SOAs need to address, including the problems of managing identities and ensuring privacy in the e/m-environment. This article presents a targeted, user-centric scalable and federated Identity Management System (IAM), calledSecIdAM, and a mobile framework for building privacy-aware, interoperable, and secure mobile applications with respect to the way that the trust relationship among the involved entities, users and SOAs, is established. Finally, it analyzes a user-transparent m-process for obtaining an authentication and authorization token, issued from the SecIdAM as integrated in the IST European programme SWEB for the public sector.

  20. Information architecture. Volume 3: Guidance

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-04-01

    The purpose of this document, as presented in Volume 1, The Foundations, is to assist the Department of Energy (DOE) in developing and promulgating information architecture guidance. This guidance is aimed at increasing the development of information architecture as a Departmentwide management best practice. This document describes departmental information architecture principles and minimum design characteristics for systems and infrastructures within the DOE Information Architecture Conceptual Model, and establishes a Departmentwide standards-based architecture program. The publication of this document fulfills the commitment to address guiding principles, promote standard architectural practices, and provide technical guidance. This document guides the transition from the baseline or defacto Departmental architecture through approved information management program plans and budgets to the future vision architecture. This document also represents another major step toward establishing a well-organized, logical foundation for the DOE information architecture.

  1. Time-history simulation of civil architecture earthquake disaster relief- based on the three-dimensional dynamic finite element method

    Directory of Open Access Journals (Sweden)

    Liu Bing

    2014-10-01

    Full Text Available Earthquake action is the main external factor which influences long-term safe operation of civil construction, especially of the high-rise building. Applying time-history method to simulate earthquake response process of civil construction foundation surrounding rock is an effective method for the anti-knock study of civil buildings. Therefore, this paper develops a civil building earthquake disaster three-dimensional dynamic finite element numerical simulation system. The system adopts the explicit central difference method. Strengthening characteristics of materials under high strain rate and damage characteristics of surrounding rock under the action of cyclic loading are considered. Then, dynamic constitutive model of rock mass suitable for civil building aseismic analysis is put forward. At the same time, through the earthquake disaster of time-history simulation of Shenzhen Children’s Palace, reliability and practicability of system program is verified in the analysis of practical engineering problems.

  2. Software architecture evolution

    DEFF Research Database (Denmark)

    Barais, Olivier; Le Meur, Anne-Francoise; Duchien, Laurence

    2008-01-01

    architecture. Following the early aspect paradigm, Tran SAT allows the software architect to design a software architecture stepwise in terms of aspects at the design stage. It realises the evolution as the weaving of new architectural aspects into an existing software architecture.......Software architectures must frequently evolve to cope with changing requirements, and this evolution often implies integrating new concerns. Unfortunately, when the new concerns are crosscutting, existing architecture description languages provide little or no support for this kind of evolution....... The software architect must modify multiple elements of the architecture manually, which risks introducing inconsistencies. This chapter provides an overview, comparison and detailed treatment of the various state-of-the-art approaches to describing and evolving software architectures. Furthermore, we discuss...

  3. Ambient and Augmented Architectural Screens

    OpenAIRE

    Vyzoviti, Sophia

    2016-01-01

    Part of topic : Projecting and manufacturing the ambiances of tomorrow; International audience; The paper investigates architectural screens as minimum yet definitive architectural elements: pop-up surfaces that produce ambient effects, outlining a sensorial envelope loaded with impactful environmental decorum.

  4. All Vision Impairment

    Science.gov (United States)

    ... Statistics and Data > All Vision Impairment All Vision Impairment Vision Impairment Defined Vision impairment is defined as the best- ... 2010 U.S. Age-Specific Prevalence Rates for Vision Impairment by Age and Race/Ethnicity Table for 2010 ...

  5. An architectural decision modeling framework for service oriented architecture design

    OpenAIRE

    Zimmermann, Olaf

    2009-01-01

    In this thesis, we investigate whether reusable architectural decision models can support Service-Oriented Architecture (SOA) design. In the current state of the art, architectural decisions are captured ad hoc and retrospectively on projects; this is a labor-intensive undertaking without immediate benefits. On the contrary, we investigate the role reusable architectural decision models can play during SOA design: We treat recurring architectural decisions as first-class method elements and p...

  6. Architecture Governance: The Importance of Architecture Governance for Achieving Operationally Responsive Ground Systems

    Science.gov (United States)

    Kolar, Mike; Estefan, Jeff; Giovannoni, Brian; Barkley, Erik

    2011-01-01

    Topics covered (1) Why Governance and Why Now? (2) Characteristics of Architecture Governance (3) Strategic Elements (3a) Architectural Principles (3b) Architecture Board (3c) Architecture Compliance (4) Architecture Governance Infusion Process. Governance is concerned with decision making (i.e., setting directions, establishing standards and principles, and prioritizing investments). Architecture governance is the practice and orientation by which enterprise architectures and other architectures are managed and controlled at an enterprise-wide level

  7. Industrial vision

    DEFF Research Database (Denmark)

    Knudsen, Ole

    1998-01-01

    This dissertation is concerned with the introduction of vision-based application s in the ship building industry. The industrial research project is divided into a natural seq uence of developments, from basic theoretical projective image generation via CAD and subpixel analysis to a description...... is present ed, and the variability of the parameters is examined and described. The concept of using CAD together with vision information is based on the fact that all items processed at OSS have an associated complete 3D CAD model that is accessible at all production states. This concept gives numerous...... possibilities for using vision in applications which otherwise would be very difficult to automate. The requirement for low tolerances in production is, despite the huge dimensions of the items involved, extreme. This fact makes great demands on the ability to do robust sub pixel estimation. A new method based...

  8. Architectural Physics: Lighting.

    Science.gov (United States)

    Hopkinson, R. G.

    The author coordinates the many diverse branches of knowledge which have dealt with the field of lighting--physiology, psychology, engineering, physics, and architectural design. Part I, "The Elements of Architectural Physics", discusses the physiological aspects of lighting, visual performance, lighting design, calculations and measurements of…

  9. Architecture on Architecture

    DEFF Research Database (Denmark)

    Olesen, Karen

    2016-01-01

    This paper will discuss the challenges faced by architectural education today. It takes as its starting point the double commitment of any school of architecture: on the one hand the task of preserving the particular knowledge that belongs to the discipline of architecture, and on the other hand...... the obligation to prepare students to perform in a profession that is largely defined by forces outside that discipline. It will be proposed that the autonomy of architecture can be understood as a unique kind of information: as architecture’s self-reliance or knowledge-about itself. A knowledge...... that is not scientific or academic but is more like a latent body of data that we find embedded in existing works of architecture. This information, it is argued, is not limited by the historical context of the work. It can be thought of as a virtual capacity – a reservoir of spatial configurations that can...

  10. Fractured Visions

    DEFF Research Database (Denmark)

    Bonde, Inger Ellekilde

    2016-01-01

    In the post-war period a heterogeneous group of photographers articulate a new photographic approach to the city as motive in a photographic language that combines intense formalism with subjective vision. This paper analyses the photobook Fragments of a City published in 1960 by Danish photograp...

  11. Agrarian Visions.

    Science.gov (United States)

    Theobald, Paul

    A new feature in "Country Teacher,""Agrarian Visions" reminds rural teachers that they can do something about rural decline. Like to populism of the 1890s, the "new populism" advocates rural living. Current attempts to address rural decline are contrary to agrarianism because: (1) telecommunications experts seek to…

  12. Advanced processing architectures that accommodate autonomy

    Science.gov (United States)

    Daley, Philip C.

    1992-03-01

    This paper surveys past architectures accommodating autonomy and projects future directions in these architectures. In recent years research toward autonomous systems has been stimulated by Space Station Freedom, SDI, and DARPA's Strategic Computing Initiative. More recently, the Mars Rover studies and the Human Exploration Initiative are driving the needs for onboard computer systems which provide either autonomous or supervised autonomous operations. While early work focussed on defining functional requirements for such systems and the development of algorithms for each functional element, current research focuses on integrated sensori-motor control and techniques to assure that the processing architectures to execute these onboard functions will respect well-defined volume, weight, and power budgets. The success of programs which demonstrate autonomous systems such as the Martin Marietta Autonomous Land Vehicle, as well as large scale laboratory demonstrations of supervised autonomy, show this can be done. Integration requires many disciplines to be jointly considered: vision, planning, control, computer systems, and platform management. The system engineering discipline to balance the design imperatives of each within a well- engineered solution must advance as well. One of the intriguing aspects of this problem is that the approach and resulting architecture must accommodate changes to the mission and associated key mission timing parameters. Therefore, the ease of evolving both the architecture and mission contribute design imperatives of their own. This paper discusses processing architectures for autonomy and lessons learned in our past work, the impact of emerging techniques such as neural networks, and our recent work to exploit custom hardware to accommodate the increased number and complexity of onboard functions required for autonomous platforms while respecting stringent volume, weight, and power considerations.

  13. Enterprise architecture evaluation using architecture framework and UML stereotypes

    OpenAIRE

    Narges Shahi; Ali Haroun Abadi; Hadi abooei mehrizi

    2014-01-01

    There is an increasing need for enterprise architecture in numerous organizations with complicated systems with various processes. Support for information technology, organizational units whose elements maintain complex relationships increases. Enterprise architecture is so effective that its non-use in organizations is regarded as their institutional inability in efficient information technology management. The enterprise architecture process generally consists of three phases including stra...

  14. Healthy Vision Tips

    Science.gov (United States)

    ... NEI for Kids > Healthy Vision Tips All About Vision About the Eye Ask a Scientist Video Series ... Links to More Information Optical Illusions Printables Healthy Vision Tips Healthy vision starts with you! Use these ...

  15. Kids' Quest: Vision Impairment

    Science.gov (United States)

    ... Fact Check Up Tourette Questions I Have Vision Impairment Quest Vision Fact Check Up Vision Questions I ... Tweet Share Compartir What should you know? Vision impairment means that a person’s eyesight cannot be corrected ...

  16. The Domes: El Wakil’s Traditionalist Architecture of Quba Mosque

    Science.gov (United States)

    Macca, A. A.; Aryanti, T.

    2017-03-01

    Quba Mosque stands as it is today after being rebuilt and renovated several times, as the sacred and historical place built by Prophet Muhammad PBUH in the first day of his emmigration to Medina. Being the first architecture following his hijra, it reflects the will of the people in their endowment to the mosque. This paper aims at studying the changes throughout the development of the mosque, focusing mainly on the last development designed by the architect El-Wakil, his will to reforge the link between the past and the present and the significance of understanding the Islamic culture, philosophy, and architecture. This study employed a literature review to capture the mosque’s architectural features developed by El-Wakil. It argues that the elements of the mosque, particularly the domes, are products of El-Wakil’s vision and defence for traditionalism. His use of traditionalist approach shows his notion of what Islamic architecture is.

  17. Bionic vision: system architectures: a review.

    Science.gov (United States)

    Guenther, Thomas; Lovell, Nigel H; Suaning, Gregg J

    2012-01-01

    The concept of an electronic visual prosthesis has been investigated since the early 20th century. While the first generation of long-term implantable devices were defined by the turn of the millennium, the greatest progress has been achieved in the past decade. This review describes the current state of the art of visual prosthesis investigated by more than two dozen active groups in this field of research. The focus is on technological solutions in regard to long-term safety of materials, electrode-tissue interfaces and encapsulation technologies. Furthermore, we critically assess the maximum number of stimulating electrodes each technological approach is likely to provide.

  18. Pleiades Visions

    Science.gov (United States)

    Whitehouse, M.

    2016-01-01

    Pleiades Visions (2012) is my new musical composition for organ that takes inspiration from traditional lore and music associated with the Pleiades (Seven Sisters) star cluster from Australian Aboriginal, Native American, and Native Hawaiian cultures. It is based on my doctoral dissertation research incorporating techniques from the fields of ethnomusicology and cultural astronomy; this research likely represents a new area of inquiry for both fields. This large-scale work employs the organ's vast sonic resources to evoke the majesty of the night sky and the expansive landscapes of the homelands of the above-mentioned peoples. Other important themes in Pleiades Visions are those of place, origins, cosmology, and the creation of the world.

  19. Cartesian visions.

    Science.gov (United States)

    Fara, Patricia

    2008-12-01

    Few original portraits exist of René Descartes, yet his theories of vision were central to Enlightenment thought. French philosophers combined his emphasis on sight with the English approach of insisting that ideas are not innate, but must be built up from experience. In particular, Denis Diderot criticised Descartes's views by describing how Nicholas Saunderson--a blind physics professor at Cambridge--relied on touch. Diderot also made Saunderson the mouthpiece for some heretical arguments against the existence of God.

  20. Vision as Adaptive Epistemology

    CERN Document Server

    Licata, Ignazio

    2010-01-01

    In the last years the debate on complexity has been developing and developing in transdisciplinary way to meet the need of explanation for highly organized collective behaviors and sophisticated hierarchical arrangements in physical, biological, cognitive and social systems. Unfortunately, no clear definition has been reached, so complexity appears like an anti-reductionist paradigm in search of a theory. In our short survey we aim to suggest a clarification in relation to the notions of computational and intrinsic emergence, and to show how the latter is deeply connected to the new Logical Openness Theory, an original extension of Godel theorems to the model theory. The epistemological scenario we are going to make use of is that of the theory of vision, a particularly instructive one. Vision is an element of our primordial relationship with the world;consequently it comes as no surprise that carefully taking into consideration the processes of visual perception can lead us straight to some significant quest...

  1. Artificial vision.

    Science.gov (United States)

    Zarbin, M; Montemagno, C; Leary, J; Ritch, R

    2011-09-01

    A number treatment options are emerging for patients with retinal degenerative disease, including gene therapy, trophic factor therapy, visual cycle inhibitors (e.g., for patients with Stargardt disease and allied conditions), and cell transplantation. A radically different approach, which will augment but not replace these options, is termed neural prosthetics ("artificial vision"). Although rewiring of inner retinal circuits and inner retinal neuronal degeneration occur in association with photoreceptor degeneration in retinitis pigmentosa (RP), it is possible to create visually useful percepts by stimulating retinal ganglion cells electrically. This fact has lead to the development of techniques to induce photosensitivity in cells that are not light sensitive normally as well as to the development of the bionic retina. Advances in artificial vision continue at a robust pace. These advances are based on the use of molecular engineering and nanotechnology to render cells light-sensitive, to target ion channels to the appropriate cell type (e.g., bipolar cell) and/or cell region (e.g., dendritic tree vs. soma), and on sophisticated image processing algorithms that take advantage of our knowledge of signal processing in the retina. Combined with advances in gene therapy, pathway-based therapy, and cell-based therapy, "artificial vision" technologies create a powerful armamentarium with which ophthalmologists will be able to treat blindness in patients who have a variety of degenerative retinal diseases.

  2. Virtual Vision

    Science.gov (United States)

    Terzopoulos, Demetri; Qureshi, Faisal Z.

    Computer vision and sensor networks researchers are increasingly motivated to investigate complex multi-camera sensing and control issues that arise in the automatic visual surveillance of extensive, highly populated public spaces such as airports and train stations. However, they often encounter serious impediments to deploying and experimenting with large-scale physical camera networks in such real-world environments. We propose an alternative approach called "Virtual Vision", which facilitates this type of research through the virtual reality simulation of populated urban spaces, camera sensor networks, and computer vision on commodity computers. We demonstrate the usefulness of our approach by developing two highly automated surveillance systems comprising passive and active pan/tilt/zoom cameras that are deployed in a virtual train station environment populated by autonomous, lifelike virtual pedestrians. The easily reconfigurable virtual cameras distributed in this environment generate synthetic video feeds that emulate those acquired by real surveillance cameras monitoring public spaces. The novel multi-camera control strategies that we describe enable the cameras to collaborate in persistently observing pedestrians of interest and in acquiring close-up videos of pedestrians in designated areas.

  3. Application architectures of enterprise information systems versus service oriented architecture

    OpenAIRE

    Milan Mišovič

    2007-01-01

    There are two different enterprise IS architectures, older application architecture and younger service oriented architecture. The application architecture its structural element is a classical web-based application can accept a partial or complex solution of enterprise IS. The first has got problems with data-process-communication integrity disturbing among IS applications. The second is convenient for large enterprises not for small and intermediate. Classical web-based applications are too...

  4. Telemedicine system interoperability architecture: concept description and architecture overview.

    Energy Technology Data Exchange (ETDEWEB)

    Craft, Richard Layne, II

    2004-05-01

    In order for telemedicine to realize the vision of anywhere, anytime access to care, it must address the question of how to create a fully interoperable infrastructure. This paper describes the reasons for pursuing interoperability, outlines operational requirements that any interoperability approach needs to consider, proposes an abstract architecture for meeting these needs, identifies candidate technologies that might be used for rendering this architecture, and suggests a path forward that the telemedicine community might follow.

  5. Pediatric Low Vision

    Science.gov (United States)

    ... Asked Questions Español Condiciones Chinese Conditions Pediatric Low Vision What is Low Vision? Partial vision loss that cannot be corrected causes ... and play. What are the signs of Low Vision? Some signs of low vision include difficulty recognizing ...

  6. Binocular Vision

    Science.gov (United States)

    Blake, Randolph; Wilson, Hugh

    2010-01-01

    This essay reviews major developments –empirical and theoretical –in the field of binocular vision during the last 25 years. We limit our survey primarily to work on human stereopsis, binocular rivalry and binocular contrast summation, with discussion where relevant of single-unit neurophysiology and human brain imaging. We identify several key controversies that have stimulated important work on these problems. In the case of stereopsis those controversies include position versus phase encoding of disparity, dependence of disparity limits on spatial scale, role of occlusion in binocular depth and surface perception, and motion in 3D. In the case of binocular rivalry, controversies include eye versus stimulus rivalry, role of “top-down” influences on rivalry dynamics, and the interaction of binocular rivalry and stereopsis. Concerning binocular contrast summation, the essay focuses on two representative models that highlight the evolving complexity in this field of study. PMID:20951722

  7. Robot Vision

    Science.gov (United States)

    Sutro, L. L.; Lerman, J. B.

    1973-01-01

    The operation of a system is described that is built both to model the vision of primate animals, including man, and serve as a pre-prototype of possible object recognition system. It was employed in a series of experiments to determine the practicability of matching left and right images of a scene to determine the range and form of objects. The experiments started with computer generated random-dot stereograms as inputs and progressed through random square stereograms to a real scene. The major problems were the elimination of spurious matches, between the left and right views, and the interpretation of ambiguous regions, on the left side of an object that can be viewed only by the left camera, and on the right side of an object that can be viewed only by the right camera.

  8. Product Architecture Modularity Strategies

    DEFF Research Database (Denmark)

    Mikkola, Juliana Hsuan

    2003-01-01

    The focus of this paper is to integrate various perspectives on product architecture modularity into a general framework, and also to propose a way to measure the degree of modularization embedded in product architectures. Various trade-offs between modular and integral product architectures...... and how components and interfaces influence the degree of modularization are considered. In order to gain a better understanding of product architecture modularity as a strategy, a theoretical framework and propositions are drawn from various academic literature sources. Based on the literature review......, the following key elements of product architecture are identified: components (standard and new-to-the-firm), interfaces (standardization and specification), degree of coupling, and substitutability. A mathematical function, termed modularization function, is introduced to measure the degree of modularization...

  9. Architectural prototyping

    DEFF Research Database (Denmark)

    Bardram, Jakob Eyvind; Christensen, Henrik Bærbak; Hansen, Klaus Marius

    2004-01-01

    A major part of software architecture design is learning how specific architectural designs balance the concerns of stakeholders. We explore the notion of "architectural prototypes", correspondingly architectural prototyping, as a means of using executable prototypes to investigate stakeholders......' concerns with respect to a system under development. An architectural prototype is primarily a learning and communication vehicle used to explore and experiment with alternative architectural styles, features, and patterns in order to balance different architectural qualities. The use of architectural...... prototypes in the development process is discussed, and we argue that such prototypes can play a role throughout the entire process. The use of architectural prototypes is illustrated by three distinct cases of creating software systems. We argue that architectural prototyping can provide key insights...

  10. Architectural Prototyping

    DEFF Research Database (Denmark)

    Bardram, Jakob; Christensen, Henrik Bærbak; Hansen, Klaus Marius

    2004-01-01

    A major part of software architecture design is learning how specific architectural designs balance the concerns of stakeholders. We explore the notion of "architectural prototypes", correspondingly architectural prototyping, as a means of using executable prototypes to investigate stakeholders......' concerns with respect to a system under development. An architectural prototype is primarily a learning and communication vehicle used to explore and experiment with alternative architectural styles, features, and patterns in order to balance different architectural qualities. The use of architectural...... prototypes in the development process is discussed, and we argue that such prototypes can play a role throughout the entire process. The use of architectural prototypes is illustrated by three distinct cases of creating software systems. We argue that architectural prototyping can provide key insights...

  11. Essential software architecture

    CERN Document Server

    Gorton, Ian

    2011-01-01

    Job titles like ""Technical Architect"" and ""Chief Architect"" nowadays abound in software industry, yet many people suspect that ""architecture"" is one of the most overused and least understood terms in professional software development. Gorton's book tries to resolve this dilemma. It concisely describes the essential elements of knowledge and key skills required to be a software architect. The explanations encompass the essentials of architecture thinking, practices, and supporting technologies. They range from a general understanding of structure and quality attributes through technical i

  12. Impairments to Vision

    Science.gov (United States)

    ... an external Non-Government web site. Impairments to Vision Normal Vision Diabetic Retinopathy Age-related Macular Degeneration In this ... pictures, fixate on the nose to simulate the vision loss. In diabetic retinopathy, the blood vessels in ...

  13. Computer and machine vision theory, algorithms, practicalities

    CERN Document Server

    Davies, E R

    2012-01-01

    Computer and Machine Vision: Theory, Algorithms, Practicalities (previously entitled Machine Vision) clearly and systematically presents the basic methodology of computer and machine vision, covering the essential elements of the theory while emphasizing algorithmic and practical design constraints. This fully revised fourth edition has brought in more of the concepts and applications of computer vision, making it a very comprehensive and up-to-date tutorial text suitable for graduate students, researchers and R&D engineers working in this vibrant subject. Key features include: Practical examples and case studies give the 'ins and outs' of developing real-world vision systems, giving engineers the realities of implementing the principles in practice New chapters containing case studies on surveillance and driver assistance systems give practical methods on these cutting-edge applications in computer vision Necessary mathematics and essential theory are made approachable by careful explanations and well-il...

  14. Low-Power Smart Imagers for Vision-Enabled Sensor Networks

    CERN Document Server

    Fernández-Berni, Jorge; Rodríguez-Vázquez, Ángel

    2012-01-01

    This book presents a comprehensive, systematic approach to the development of vision system architectures that employ sensory-processing concurrency and parallel processing to meet the autonomy challenges posed by a variety of safety and surveillance applications.  Coverage includes a thorough analysis of resistive diffusion networks embedded within an image sensor array. This analysis supports a systematic approach to the design of spatial image filters and their implementation as vision chips in CMOS technology. The book also addresses system-level considerations pertaining to the embedding of these vision chips into vision-enabled wireless sensor networks.  Describes a system-level approach for designing of vision devices and  embedding them into vision-enabled, wireless sensor networks; Surveys state-of-the-art, vision-enabled WSN nodes; Includes details of specifications and challenges of vision-enabled WSNs; Explains architectures for low-energy CMOS vision chips with embedded, programmable spatial f...

  15. Architecture for the silvering society

    DEFF Research Database (Denmark)

    Andersson, Jonas E; Rönn, Magnus

    Abstract In the context of the universal ageing process that is currently taking place in western society, the organization of architecture competitions that deals with space for dependent ageing comes of relevance. Based on the welfare regime theory, it could be argued that this type...... space for ageing by use of architectural competitions. Three municipal architecture competitions that dealt with space for ageing (ordinary or sheltered housing) constitute the framework for this study. These were organized during the period of November 2011 to April 2012, partly sponsored...... of architecture is part of a national architectural typology. The type of welfare regime does not only supply spatial parameters to respect, but it also align architects’ the spatial visions in order to incarnate the national socio‐political ambitions. This type of space seems to have a slower pace of change...

  16. Robotic architectures

    CSIR Research Space (South Africa)

    Mtshali, M

    2010-01-01

    Full Text Available In the development of mobile robotic systems, a robotic architecture plays a crucial role in interconnecting all the sub-systems and controlling the system. The design of robotic architectures for mobile autonomous robots is a challenging...

  17. Minimalism in architecture: Architecture as a language of its identity

    Directory of Open Access Journals (Sweden)

    Vasilski Dragana

    2012-01-01

    Full Text Available Every architectural work is created on the principle that includes the meaning, and then this work is read like an artifact of the particular meaning. Resources by which the meaning is built primarily, susceptible to transformation, as well as routing of understanding (decoding messages carried by a work of architecture, are subject of semiotics and communication theories, which have played significant role for the architecture and the architect. Minimalism in architecture, as a paradigm of the XXI century architecture, means searching for essence located in the irreducible minimum. Inspired use of architectural units (archetypical elements, trough the fatasm of simplicity, assumes the primary responsibility for providing the object identity, because it participates in language formation and therefore in its reading. Volume is form by clean language that builds the expression of the fluid areas liberated of recharge needs. Reduced architectural language is appropriating to the age marked by electronic communications.

  18. VIP - A Framework-Based Approach to Robot Vision

    Directory of Open Access Journals (Sweden)

    Gerd Mayer

    2008-11-01

    Full Text Available For robot perception, video cameras are very valuable sensors, but the computer vision methods applied to extract information from camera images are usually computationally expensive. Integrating computer vision methods into a robot control architecture requires to balance exploitation of camera images with the need to preserve reactivity and robustness. We claim that better software support is needed in order to facilitate and simplify the application of computer vision and image processing methods on autonomous mobile robots. In particular, such support must address a simplified specification of image processing architectures, control and synchronization issues of image processing steps, and the integration of the image processing machinery into the overall robot control architecture. This paper introduces the video image processing (VIP framework, a software framework for multithreaded control flow modeling in robot vision.

  19. VIP - A Framework-Based Approach to Robot Vision

    Directory of Open Access Journals (Sweden)

    Hans Utz

    2006-03-01

    Full Text Available For robot perception, video cameras are very valuable sensors, but the computer vision methods applied to extract information from camera images are usually computationally expensive. Integrating computer vision methods into a robot control architecture requires to balance exploitation of camera images with the need to preserve reactivity and robustness. We claim that better software support is needed in order to facilitate and simplify the application of computer vision and image processing methods on autonomous mobile robots. In particular, such support must address a simplified specification of image processing architectures, control and synchronization issues of image processing steps, and the integration of the image processing machinery into the overall robot control architecture. This paper introduces the video image processing (VIP framework, a software framework for multithreaded control flow modeling in robot vision.

  20. Architectural Theatricality

    DEFF Research Database (Denmark)

    Tvedebrink, Tenna Doktor Olsen; Fisker, Anna Marie; Kirkegaard, Poul Henning

    2013-01-01

    and recovery through the architecture framing eating experiences, this article examines, from a theoretical perspective, two less debated concepts relating to hospitality called food design and architectural theatricality. In architectural theory the nineteenth century German architect Gottfried Semper...... is known for his writings on theatricality, understood as a holistic design approach emphasizing the contextual, cultural, ritual and social meanings rooted in architecture. Relative hereto, the International Food Design Society recently argued, in a similar holistic manner, that the methodology used...

  1. Architecture & Environment

    Science.gov (United States)

    Erickson, Mary; Delahunt, Michael

    2010-01-01

    Most art teachers would agree that architecture is an important form of visual art, but they do not always include it in their curriculums. In this article, the authors share core ideas from "Architecture and Environment," a teaching resource that they developed out of a long-term interest in teaching architecture and their fascination with the…

  2. Solder inspection using an object-oriented approach to machine vision

    Science.gov (United States)

    Bowskill, Jerry M.; Katz, T.; Downie, J. H.

    1995-03-01

    A generic approach to the development and integration of machine vision, within surface- mount electronics manufacturing, has been proceeding based on the concept of a standard vision framework. A framework is a collection of system components, the connection of which can be configured with appropriate support tools. This is facilitated using object- oriented analysis and design techniques to identify and describe those elements, or modules, that are crucial to all vision systems within the domain. Analysis of surface-mount manufacturing has identified fifteen potential tasks in which machine vision inspection and control is beneficial. The essential functionality which spans these tasks has been identified and incorporated in a set of approximately twenty visual components implemented using the KAPPA programming environment. A practical exploration has been made into using the framework to develop a method of classifying insufficient solder deposits based on the distinct light reflection characteristics of solder fillets when illuminated from different angles. Classification has been reliably achieved by calculating the variation in mean luminance of specific fillet regions between images obtained with high and low angles of lighting using a custom light source. The resulting system architecture has illustrated the potential of object- oriented software and specification techniques, producing an elegant structure based on code reuse and `design by extension'.

  3. National Positioning, Navigation, and Timing Architecture

    National Research Council Canada - National Science Library

    Huested, Patrick; Popejoy, Paul D

    2008-01-01

    .... The strategy is supported by vectors, or enterprise architecture elements, for using multiple PNT-related phenomenologies and interchangeable PNT solutions, PNT and Communications synergy, and co...

  4. Project Integration Architecture: Application Architecture

    Science.gov (United States)

    Jones, William Henry

    2005-01-01

    The Project Integration Architecture (PIA) implements a flexible, object-oriented, wrapping architecture which encapsulates all of the information associated with engineering applications. The architecture allows the progress of a project to be tracked and documented in its entirety. Additionally, by bringing all of the information sources and sinks of a project into a single architectural space, the ability to transport information between those applications is enabled.

  5. Teachers: The vision supported

    Energy Technology Data Exchange (ETDEWEB)

    Tuomi, J.

    1994-12-31

    A support system is necessary to implement the vision of standards-based science education. The National Science Resources Center has studied isolated areas where innovations have succeeded and finds that the successful enterprises have these elements in common: 1. The availability of high-quality, inquiry-centered science curriculum units that are appropriate for children; 2. Teacher education programs to prepare and support elementary teachers to teach hands-on, inquiry-centered science; 3. Support systems for supplying science materials and equipment to teachers; 4. Assessment methods for evaluating student performance that are consistent with the goals of an effective science program; and, 5. Administrative and community support for an effective science program.

  6. Thinking Within Architecture

    OpenAIRE

    Harrison, Claudia

    2002-01-01

    With historic ruins as a project vehicle, this thesis investigates connections to an existing structure through materials and spatial relationships. The proposed intervention, guided by design elements and preservation methods, reflects a sensitive approach and provides a transition between our built heritage and an adapted form of architecture.

  7. Enterprise Architecture Evaluation

    DEFF Research Database (Denmark)

    Andersen, Peter; Carugati, Andrea

    2014-01-01

    By being holistically preoccupied with coherency among organizational elements such as organizational strategy, business needs and the IT functions role in supporting the business, enterprise architecture (EA) has grown to become a core competitive advantage. Though EA is a maturing research area...

  8. Materials Driven Architectural Design and Representation

    DEFF Research Database (Denmark)

    Kruse Aagaard, Anders

    2015-01-01

    This paper aims to outline a framework for a deeper connection between experimentally obtained material knowledge and architectural design. While materials and architecture in the process of realisation are tightly connected, architectural design and representation are often distanced from...... the material domain in which the construction eventually will happen. In many cases, it can seem that materials play the role of a selection of building blocks from which a determined architectural vision or representation are tried to be build. Research in materials, materials behaviour and new materials...... another role in relation to architectural production. It is, in this paper, the intention to point at material research as an active initiator in explorative approaches to architectural design methods and architectural representation. This paper will point at the inclusion of tangible and experimental...

  9. Architecture, eTrees, & Nature

    Directory of Open Access Journals (Sweden)

    Dennis Dollens

    2010-06-01

    Full Text Available One vision for grafting biological performance into buildings includes inventing, growing, and synthesizing biological attributes for architectural life—thinking of architecture as metabolically evolved nature/culture. This requires a parallel strategy fostering collaborations between design, biology, art, horticulture, e-plant simulation, synthetic life, bio-mineralization, and advanced fabrication. It encourages designers to integrate industrial and agricultural information as design research with the goal of embedding specific environmental-life responses in architecture. This text discusses and illustrates induced evolution in one emerging method for design realized through software simulation—in this case, plant-to-architecture generation based in naturally occurring algorithms, found for example, in botanic phyllotaxy and allometry.

  10. Low-Latency Embedded Vision Processor (LLEVS)

    Science.gov (United States)

    2016-03-01

    DP Double Precision DSP Digital Signal Processor DU Drexel University DVE Degraded Visual Environment DWT Discrete Wavelet Transform EMI...AFRL-RH-WP-TR-2016-0017 Low-Latency Embedded Vision Processor (LLEVS) Greg Cream*, Wesley Sheridan*, and Prawat Nagvajara...Embedded Vision Processor (LLEVS) 5a. CONTRACT NUMBER FA8650-15-M-6659 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 65502F 6. AUTHOR(S) Greg

  11. Translating visions into realities.

    Science.gov (United States)

    Nesje, Arne

    2006-08-01

    The overall vision and the building concept. The overall vision with individual buildings that have focal points for the related medical treatment may seem to increase both investment and operational cost, especially in the period until the total hospital is finished (2014). The slogan "Better services at lower cost" is probably a vision that will prove to be hard to fulfil. But the patients will probably be the long-term winners with single rooms with bathroom, high standards of service, good architecture and a pleasant environment. The challenge will be to get the necessary funding for running the hospital. The planning process and project management Many interviewees indicate how difficult it is to combine many functions and requirements in one building concept. Different architectural, technical, functional and economic interests will often cause conflict. The project organisation HBMN was organised outside the administration of both STOLAV and HMN. A closer connection and better co-operation with STOLAV may have resulted in more influence from the medical employees. It is probably fair to anticipate that the medical employees would have felt more ownership of the process and thus be more satisfied with the concept and the result. On the other hand the organisation of the project outside the hospital administration may have contributed to better control and more professional management of the construction project. The management for planning and building (technical programme, environmental programme, aesthetical The need for control on site was probably underestimated. For STOLAV technical department (TD) the building process has been time-consuming by giving support, making controls and preparing the take-over phase. But during this process they have become better trained to run and operate the new centres. The commissioning phase has been a challenging time. There were generally more changes, supplementation and claims than anticipated. The investment costs

  12. Thomas Jefferson and Architecture. Lesson Plan.

    Science.gov (United States)

    Gabriel, Robin H.

    1994-01-01

    Discusses the importance of architecture in Thomas Jefferson's life. Presents a lesson plan based on Jefferson's Monticello and designed to encourage students to identify and understand elements of classical architecture in their local area. Includes a photograph of Monticello and six architectural illustrations. (CFR)

  13. Visions and visioning in foresight activities

    DEFF Research Database (Denmark)

    Jørgensen, Michael Søgaard; Grosu, Dan

    2007-01-01

    and visioning processes in a number of foresight processes from different societal contexts. The analyses have been carried out as part of the work in the COST A22 network on foresight. A vision is here understood as a description of a desirable or preferable future, compared to a scenario which is understood...

  14. Architectural Anthropology

    DEFF Research Database (Denmark)

    Stender, Marie

    , while recent material and spatial turns in anthropology have also brought an increasing interest in design, architecture and the built environment. Understanding the relationship between the social and the physical is at the heart of both disciplines, and they can obviously benefit from further...... collaboration: How can qualitative anthropological approaches contribute to contemporary architecture? And just as importantly: What can anthropologists learn from architects’ understanding of spatial and material surroundings? Recent theoretical developments in anthropology stress the role of materials...... and maybe also contribute to architectural design and the shaping of built environments? Through various empirical examples this paper explores the challenges and potentials of architectural anthropology....

  15. Catalyst Architecture

    DEFF Research Database (Denmark)

    Kiib, Hans; Marling, Gitte; Hansen, Peter Mandal

    2014-01-01

    How can architecture promote the enriching experiences of the tolerant, the democratic, and the learning city - a city worth living in, worth supporting and worth investing in? Catalyst Architecture comprises architectural projects, which, by virtue of their location, context and their combination...... of programs, have a role in mediating positive social and/or cultural development. In this sense, we talk about architecture as a catalyst for: sustainable adaptation of the city’s infrastructure appropriate renovation of dilapidated urban districts strengthening of social cohesiveness in the city development...

  16. Architectural Narratives

    DEFF Research Database (Denmark)

    Kiib, Hans

    2010-01-01

    a functional framework for these concepts, but tries increasingly to endow the main idea of the cultural project with a spatially aesthetic expression - a shift towards “experience architecture.” A great number of these projects typically recycle and reinterpret narratives related to historical buildings...... and architectural heritage; another group tries to embed new performative technologies in expressive architectural representation. Finally, this essay provides a theoretical framework for the analysis of the political rationales of these projects and for the architectural representation bridges the gap between...

  17. Chemicals Industry Vision

    Energy Technology Data Exchange (ETDEWEB)

    none,

    1996-12-01

    Chemical industry leaders articulated a long-term vision for the industry, its markets, and its technology in the groundbreaking 1996 document Technology Vision 2020 - The U.S. Chemical Industry. (PDF 310 KB).

  18. Living with Low Vision

    Science.gov (United States)

    ... Life TIPS To Its Fullest LIVING WITH LOW VISION Savings Medical Bills A VARIETY OF EYE CONDITIONS, ... which occupational therapy practitioners help people with low vision to function at the highest possible level. • Prevent ...

  19. Cataract Vision Simulator

    Science.gov (United States)

    ... and Videos: What Do Cataracts Look Like? Cataract Vision Simulator Leer en Español: Simulador: Catarata Jun. 11, 2014 How do cataracts affect your vision? A cataract is a clouding of the eye's ...

  20. Vision - night blindness

    Science.gov (United States)

    ... this page: //medlineplus.gov/ency/article/003039.htm Vision - night blindness To use the sharing features on ... page, please enable JavaScript. Night blindness is poor vision at night or in dim light. Considerations Night ...

  1. Blindness and vision loss

    Science.gov (United States)

    ... have low vision, you may have trouble driving, reading, or doing small tasks such as sewing or ... lost vision. You should never ignore vision loss, thinking it will get better. Contact an ... A.D.A.M.'s editorial policy , editorial process and privacy policy . A.D.A.M. is ...

  2. Comparing Active Vision Models

    NARCIS (Netherlands)

    Croon, G.C.H.E. de; Sprinkhuizen-Kuyper, I.G.; Postma, E.O.

    2009-01-01

    Active vision models can simplify visual tasks, provided that they can select sensible actions given incoming sensory inputs. Many active vision models have been proposed, but a comparative evaluation of these models is lacking. We present a comparison of active vision models from two different

  3. Your Child's Vision

    Science.gov (United States)

    ... the Flu Vaccine? Eating Disorders Arrhythmias Your Child's Vision KidsHealth > For Parents > Your Child's Vision Print A A A What's in this article? ... La vista de su hijo Healthy eyes and vision are a critical part of kids' development. Their ...

  4. Comparing active vision models

    NARCIS (Netherlands)

    Croon, G.C.H.E. de; Sprinkhuizen-Kuyper, I.G.; Postma, E.O.

    2009-01-01

    Active vision models can simplify visual tasks, provided that they can select sensible actions given incoming sensory inputs. Many active vision models have been proposed, but a comparative evaluation of these models is lacking. We present a comparison of active vision models from two different

  5. Robot Vision Library

    Science.gov (United States)

    Howard, Andrew B.; Ansar, Adnan I.; Litwin, Todd E.; Goldberg, Steven B.

    2009-01-01

    The JPL Robot Vision Library (JPLV) provides real-time robot vision algorithms for developers who are not vision specialists. The package includes algorithms for stereo ranging, visual odometry and unsurveyed camera calibration, and has unique support for very wideangle lenses

  6. Minimalism in architecture: Abstract conceptualization of architecture

    Directory of Open Access Journals (Sweden)

    Vasilski Dragana

    2015-01-01

    Full Text Available Minimalism in architecture contains the idea of the minimum as a leading creative tend to be considered and interpreted in working through phenomena of empathy and abstraction. In the Western culture, the root of this idea is found in empathy of Wilhelm Worringer and abstraction of Kasimir Malevich. In his dissertation, 'Abstraction and Empathy' Worringer presented his thesis on the psychology of style through which he explained the two opposing basic forms: abstraction and empathy. His conclusion on empathy as a psychological basis of observation expression is significant due to the verbal congruence with contemporary minimalist expression. His intuition was enhenced furthermore by figure of Malevich. Abstraction, as an expression of inner unfettered inspiration, has played a crucial role in the development of modern art and architecture of the twentieth century. Abstraction, which is one of the basic methods of learning in psychology (separating relevant from irrelevant features, Carl Jung is used to discover ideas. Minimalism in architecture emphasizes the level of abstraction to which the individual functions are reduced. Different types of abstraction are present: in the form as well as function of the basic elements: walls and windows. The case study is an example of Sou Fujimoto who is unequivocal in its commitment to the autonomy of abstract conceptualization of architecture.

  7. Architectural geometry

    NARCIS (Netherlands)

    Pottmann, Helmut; Eigensatz, Michael; Vaxman, A.; Wallner, Johannes

    2015-01-01

    Around 2005 it became apparent in the geometry processing community that freeform architecture contains many problems of a geometric nature to be solved, and many opportunities for optimization which however require geometric understanding. This area of research, which has been called architectural

  8. Architectural Contestation

    NARCIS (Netherlands)

    Merle, J.

    2012-01-01

    This dissertation addresses the reductive reading of Georges Bataille's work done within the field of architectural criticism and theory which tends to set aside the fundamental ‘broken’ totality of Bataille's oeuvre and also to narrowly interpret it as a mere critique of architectural form,

  9. Architecture Sustainability

    NARCIS (Netherlands)

    Avgeriou, Paris; Stal, Michael; Hilliard, Rich

    2013-01-01

    Software architecture is the foundation of software system development, encompassing a system's architects' and stakeholders' strategic decisions. A special issue of IEEE Software is intended to raise awareness of architecture sustainability issues and increase interest and work in the area. The

  10. Demystifying Visionary Leadership: In search of the essence of effective vision communication

    OpenAIRE

    Venus, Merlijn

    2013-01-01

    textabstractVision communication has been heralded as the most defining aspect of outstanding leadership, yet what makes for effective vision communication has eluded leadership scholars so far. Indeed, while vision communication is the only leader behavior that is specified in all influential leadership theories, it remains unclear which elements of leader vision and how these elements are conducive to the mobilization of followers toward action. Accordingly, the goal of the current disserta...

  11. Systemic Architecture

    DEFF Research Database (Denmark)

    Poletto, Marco; Pasquero, Claudia

    This is a manual investigating the subject of urban ecology and systemic development from the perspective of architectural design. It sets out to explore two main goals: to discuss the contemporary relevance of a systemic practice to architectural design, and to share a toolbox of informational...... design protocols developed to describe the city as a territory of self-organization. Collecting together nearly a decade of design experiments by the authors and their practice, ecoLogicStudio, the book discusses key disciplinary definitions such as ecologic urbanism, algorithmic architecture, bottom......-up or tactical design, behavioural space and the boundary of the natural and the artificial realms within the city and architecture. A new kind of "real-time world-city" is illustrated in the form of an operational design manual for the assemblage of proto-architectures, the incubation of proto...

  12. Architectural Anthropology

    DEFF Research Database (Denmark)

    Stender, Marie

    anthropology. On the one hand, there are obviously good reasons for developing architecture based on anthropological insights in local contexts and anthropologically inspired techniques for ‘collaborative formation of issues’. Houses and built environments are huge investments, their life expectancy......-anthropology. Within the field of architecture, however, there has not yet been quite the same eagerness to include anthropological approaches in design processes. This paper discusses why this is so and how and whether architectural anthropology has different conditions and objectives than other types of design...... and other spaces that architects are preoccupied with. On the other hand, the distinction between architecture and design is not merely one of scale. Design and architecture represent – at least in Denmark – also quite different disciplinary traditions and methods. Where designers develop prototypes...

  13. A child's vision.

    Science.gov (United States)

    Nye, Christina

    2014-06-01

    Implementing standard vision screening techniques in the primary care practice is the most effective means to detect children with potential vision problems at an age when the vision loss may be treatable. A critical period of vision development occurs in the first few weeks of life; thus, it is imperative that serious problems are detected at this time. Although it is not possible to quantitate an infant's vision, evaluating ocular health appropriately can mean the difference between sight and blindness and, in the case of retinoblastoma, life or death. Copyright © 2014 Elsevier Inc. All rights reserved.

  14. True Visions The Emergence of Ambient Intelligence

    CERN Document Server

    Aarts, Emile

    2006-01-01

    Ambient intelligence (AI) refers to a developing technology that will increasingly make our everyday environment sensitive and responsive to our presence. The AI vision requires technology invisibly embedded in our everyday surroundings, present whenever we need it that will lead to the seamless integration of lighting, sounds, vision, domestic appliances, and personal healthcare products to enhance our living experience. Written for the non-specialist seeking an authoritative but accessible overview of this interdisciplinary field, True Visions explains how the devices making up the AI world will operate collectively using information and intelligence hidden in the wireless network connecting them. Expert contributions address key AI components such as smart materials and textiles, system architecture, mobile computing, broadband communication, and underlying issues of human-environment interactions. It seeks to unify the perspectives of scientists from diverse backgrounds ranging from the physics of materia...

  15. Acquired color vision deficiency.

    Science.gov (United States)

    Simunovic, Matthew P

    2016-01-01

    Acquired color vision deficiency occurs as the result of ocular, neurologic, or systemic disease. A wide array of conditions may affect color vision, ranging from diseases of the ocular media through to pathology of the visual cortex. Traditionally, acquired color vision deficiency is considered a separate entity from congenital color vision deficiency, although emerging clinical and molecular genetic data would suggest a degree of overlap. We review the pathophysiology of acquired color vision deficiency, the data on its prevalence, theories for the preponderance of acquired S-mechanism (or tritan) deficiency, and discuss tests of color vision. We also briefly review the types of color vision deficiencies encountered in ocular disease, with an emphasis placed on larger or more detailed clinical investigations. Copyright © 2016 Elsevier Inc. All rights reserved.

  16. Algorithms, architectures and information systems security

    CERN Document Server

    Sur-Kolay, Susmita; Nandy, Subhas C; Bagchi, Aditya

    2008-01-01

    This volume contains articles written by leading researchers in the fields of algorithms, architectures, and information systems security. The first five chapters address several challenging geometric problems and related algorithms. These topics have major applications in pattern recognition, image analysis, digital geometry, surface reconstruction, computer vision and in robotics. The next five chapters focus on various optimization issues in VLSI design and test architectures, and in wireless networks. The last six chapters comprise scholarly articles on information systems security coverin

  17. Project Integration Architecture: Architectural Overview

    Science.gov (United States)

    Jones, William Henry

    2001-01-01

    The Project Integration Architecture (PIA) implements a flexible, object-oriented, wrapping architecture which encapsulates all of the information associated with engineering applications. The architecture allows the progress of a project to be tracked and documented in its entirety. By being a single, self-revealing architecture, the ability to develop single tools, for example a single graphical user interface, to span all applications is enabled. Additionally, by bringing all of the information sources and sinks of a project into a single architectural space, the ability to transport information between those applications becomes possible, Object-encapsulation further allows information to become in a sense self-aware, knowing things such as its own dimensionality and providing functionality appropriate to its kind.

  18. Architectural technology

    DEFF Research Database (Denmark)

    2005-01-01

    The booklet offers an overall introduction to the Institute of Architectural Technology and its projects and activities, and an invitation to the reader to contact the institute or the individual researcher for further information. The research, which takes place at the Institute of Architectural...... Technology at the Roayl Danish Academy of Fine Arts, School of Architecture, reflects a spread between strategic, goal-oriented pilot projects, commissioned by a ministry, a fund or a private company, and on the other hand projects which originate from strong personal interests and enthusiasm of individual...

  19. Humanizing Architecture

    DEFF Research Database (Denmark)

    Toft, Tanya Søndergaard

    2015-01-01

    The article proposes the urban digital gallery as an opportunity to explore the relationship between ‘human’ and ‘technology,’ through the programming of media architecture. It takes a curatorial perspective when proposing an ontological shift from considering media facades as visual spectacles...... agency and a sense of being by way of dematerializing architecture. This is achieved by way of programming the symbolic to provide new emotional realizations and situations of enlightenment in the public audience. This reflects a greater potential to humanize the digital in media architecture....

  20. Healing Architecture

    DEFF Research Database (Denmark)

    Folmer, Mette Blicher; Mullins, Michael; Frandsen, Anne Kathrine

    2012-01-01

    The project examines how architecture and design of space in the intensive unit promotes or hinders interaction between relatives and patients. The primary starting point is the relatives. Relatives’ support and interaction with their loved ones is important in order to promote the patients healing...... process. Therefore knowledge on how space can support interaction is fundamental for the architect, in order to make the best design solutions. Several scientific studies document that the hospital's architecture and design are important for human healing processes, including how the physical environment...... architectural and design solutions in order to improve quality of interaction between relative and patient in the hospital's intensive unit....

  1. Enterprise architecture evaluation using architecture framework and UML stereotypes

    Directory of Open Access Journals (Sweden)

    Narges Shahi

    2014-08-01

    Full Text Available There is an increasing need for enterprise architecture in numerous organizations with complicated systems with various processes. Support for information technology, organizational units whose elements maintain complex relationships increases. Enterprise architecture is so effective that its non-use in organizations is regarded as their institutional inability in efficient information technology management. The enterprise architecture process generally consists of three phases including strategic programing of information technology, enterprise architecture programing and enterprise architecture implementation. Each phase must be implemented sequentially and one single flaw in each phase may result in a flaw in the whole architecture and, consequently, in extra costs and time. If a model is mapped for the issue and then it is evaluated before enterprise architecture implementation in the second phase, the possible flaws in implementation process are prevented. In this study, the processes of enterprise architecture are illustrated through UML diagrams, and the architecture is evaluated in programming phase through transforming the UML diagrams to Petri nets. The results indicate that the high costs of the implementation phase will be reduced.

  2. Challenges with Deploying and Integrating Environmental Control and Life Support Functions in a Lunar Architecture with High Degrees of Mobility

    Science.gov (United States)

    Bagdigian, Robert M.

    2009-01-01

    Visions of lunar outposts often depict a collection of fixed elements such as pressurized habitats, in and around which human inhabitants spend the large majority of their surface stay time. In such an outpost, an efficient deployment of environmental control and life support equipment can be achieved by centralizing certain functions within one or a minimum number of habitable elements and relying on the exchange of gases and liquids between elements via atmosphere ventilation and plumbed interfaces. However, a rigidly fixed outpost can constrain the degree to which the total lunar landscape can be explored. The capability to enable widespread access across the landscape makes a lunar architecture with a high degree of surface mobility attractive. Such mobility presents unique challenges to the efficient deployment of environmental control and life support functions in multiple elements that may for long periods of time be operated independently. This paper describes some of those anticipated challenges.

  3. Information systems definition architecture

    Energy Technology Data Exchange (ETDEWEB)

    Calapristi, A.J.

    1996-06-20

    The Tank Waste Remediation System (TWRS) Information Systems Definition architecture evaluated information Management (IM) processes in several key organizations. The intent of the study is to identify improvements in TWRS IM processes that will enable better support to the TWRS mission, and accommodate changes in TWRS business environment. The ultimate goals of the study are to reduce IM costs, Manage the configuration of TWRS IM elements, and improve IM-related process performance.

  4. The Political Economy of Architectural Research : Dutch Architecture, Architects and the City, 2000-2012

    NARCIS (Netherlands)

    Djalali, A.

    2016-01-01

    The status of architectural research has not yet been clearly defined. Nevertheless, architectural research has surely become a core element in the profession of architecture. In fact, the tendency seem for architects to be less and less involved with building design and construction services, which

  5. Architectured Nanomembranes

    Energy Technology Data Exchange (ETDEWEB)

    Sturgeon, Matthew R. [Former ORNL postdoc; Hu, Michael Z. [ORNL

    2017-07-01

    This paper has reviewed the frontier field of “architectured membranes” that contains anisotropic oriented porous nanostructures of inorganic materials. Three example types of architectured membranes were discussed with some relevant results from our own research: (1) anodized thin-layer titania membranes on porous anodized aluminum oxide (AAO) substrates of different pore sizes, (2) porous glass membranes on alumina substrate, and (3) guest-host membranes based on infiltration of yttrium-stabilized zirconia inside the pore channels of AAO matrices.

  6. Textile Architecture

    OpenAIRE

    Maurin, Bernard; Motro, René

    2013-01-01

    The basic idea for a textile architecture project originates during early meetings between the architect and the engineer. The morphologic richness of such projects is provided by the varying curvatures of shapes, in contradiction with a classical straight line and orthogonal architecture. However the rules of construction are quite different in terms of realisation and of mechanical behaviour: textile membranes are subjected to a pre-stress conferring them their rigidity, and a major objecti...

  7. Critiques, replicas and proposals for the New Urbanism Vision

    Directory of Open Access Journals (Sweden)

    Alaide Retana

    2014-03-01

    Full Text Available The new urbanism (NU is a vision of planning and urban design emerged in 1993, which finds its basis in the design of traditional communities. This trend has had various criticisms and replicas, which were reviewed in relation to urban sprawl, transportation, re-densifying, mix of uses of land, design, gentrification, pedestrianization and safety, which were analyzed in the neighborhood of Santa Barbara in Toluca, Mexico. This area was chosen for being traditional and forming part of the historical center of the city, which even though it was not designed under the guidelines of the NU, it has the quality of traditional, from which the NU would theoretically has taken its essence. The objective of this analysis is to establish whether the NU has the essence of a traditional Mexican neighborhood, as well as to check if the criticisms of the NU are informed when applied to a space belonging to a Mexican historic center that has been abandoned by problems of insecurity and degradation. The general conclusion is that the traditional neighborhoods have provided design elements to the NU, which will refute some of the criticisms, however, proposals for NU in neighborhoods of his-toric centers have to be based on the community, the architecture and existing urbanism, since these elements are those that give the identity.

  8. An Indexing Scheme for Case-Based Manufacturing Vision Development

    DEFF Research Database (Denmark)

    Wang, Chengbo; Johansen, John; Luxhøj, James T.

    2004-01-01

    This paper focuses on one critical element, indexing – retaining and representing knowledge in an applied case-based reasoning (CBR) model for supporting strategic manufacturing vision development (CBRM). Manufacturing vision (MV) is a kind of knowledge management concept and process concerned...

  9. Technological process supervising using vision systems cooperating with the LabVIEW vision builder

    Science.gov (United States)

    Hryniewicz, P.; Banaś, W.; Gwiazda, A.; Foit, K.; Sękala, A.; Kost, G.

    2015-11-01

    One of the most important tasks in the production process is to supervise its proper functioning. Lack of required supervision over the production process can lead to incorrect manufacturing of the final element, through the production line downtime and hence to financial losses. The worst result is the damage of the equipment involved in the manufacturing process. Engineers supervise the production flow correctness use the great range of sensors supporting the supervising of a manufacturing element. Vision systems are one of sensors families. In recent years, thanks to the accelerated development of electronics as well as the easier access to electronic products and attractive prices, they become the cheap and universal type of sensors. These sensors detect practically all objects, regardless of their shape or even the state of matter. The only problem is considered with transparent or mirror objects, detected from the wrong angle. Integrating the vision system with the LabVIEW Vision and the LabVIEW Vision Builder it is possible to determine not only at what position is the given element but also to set its reorientation relative to any point in an analyzed space. The paper presents an example of automated inspection. The paper presents an example of automated inspection of the manufacturing process in a production workcell using the vision supervising system. The aim of the work is to elaborate the vision system that could integrate different applications and devices used in different production systems to control the manufacturing process.

  10. Mathematical leadership vision.

    Science.gov (United States)

    Hamburger, Y A

    2000-11-01

    This article is an analysis of a new type of leadership vision, the kind of vision that is becoming increasingly pervasive among leaders in the modern world. This vision appears to offer a new horizon, whereas, in fact it delivers to its target audience a finely tuned version of the already existing ambitions and aspirations of the target audience. The leader, with advisors, has examined the target audience and has used the results of extensive research and statistical methods concerning the group to form a picture of its members' lifestyles and values. On the basis of this information, the leader has built a "vision." The vision is intended to create an impression of a charismatic and transformational leader when, in fact, it is merely a response. The systemic, arithmetic, and statistical methods employed in this operation have led to the coining of the terms mathematical leader and mathematical vision.

  11. Vision-based interaction

    CERN Document Server

    Turk, Matthew

    2013-01-01

    In its early years, the field of computer vision was largely motivated by researchers seeking computational models of biological vision and solutions to practical problems in manufacturing, defense, and medicine. For the past two decades or so, there has been an increasing interest in computer vision as an input modality in the context of human-computer interaction. Such vision-based interaction can endow interactive systems with visual capabilities similar to those important to human-human interaction, in order to perceive non-verbal cues and incorporate this information in applications such

  12. Measuring Vision in Children

    Directory of Open Access Journals (Sweden)

    Petra Verweyen

    2004-01-01

    Full Text Available Measuring vision in children is a special skill requiring time, patience and understanding. Methods should be adapted to the child’s age, abilities, knowledge and experience. Young children are not able to describe their vision or explain their visual symptoms. Through observation, and with information from the mother or guardian, functional vision can be evaluated. While testing and observing children, an experienced assessor notices their responses to visual stimuli. These must be compared with the expected functional vision for children of the same age and abilities, so it is important to know the normal visual development.

  13. Addressing Development Vision 2025: Appropriate Training Models ...

    African Journals Online (AJOL)

    Appropriately trained Human Resources for Health (HRH) are key inputs in the realisation of high quality livelihood, the first attribute of Tanzania‟s Development Vision 2025. Within this attribute elements related to HRH include: access to quality primary health care for all, reduction in infant and maternal mortality rates by ...

  14. Visual Perception with Color for Architectural Aesthetics

    NARCIS (Netherlands)

    Bittermann, M.S.; Ciftcioglu, O.

    2016-01-01

    Studies on computer-based visual perception and aesthetical judgment for architectural design are presented. In the model, both color and the geometric aspects of human vision are jointly taken into account, quantifying the perception of an individual object, as well as a scene consisting of several

  15. Crossing the divide between computer vision and data bases in search of image data bases

    NARCIS (Netherlands)

    Worring, M.; Smeulders, A.W.M.; Ioannidis, Y.; Klas, W.

    1998-01-01

    Image databases call upon the combined effort of computing vision and database technology to advance beyond exemplary systems. In this paper we charter several areas for mutually beneficial research activities and provide an architectural design to accommodate it.

  16. PICNIC Architecture.

    Science.gov (United States)

    Saranummi, Niilo

    2005-01-01

    The PICNIC architecture aims at supporting inter-enterprise integration and the facilitation of collaboration between healthcare organisations. The concept of a Regional Health Economy (RHE) is introduced to illustrate the varying nature of inter-enterprise collaboration between healthcare organisations collaborating in providing health services to citizens and patients in a regional setting. The PICNIC architecture comprises a number of PICNIC IT Services, the interfaces between them and presents a way to assemble these into a functioning Regional Health Care Network meeting the needs and concerns of its stakeholders. The PICNIC architecture is presented through a number of views relevant to different stakeholder groups. The stakeholders of the first view are national and regional health authorities and policy makers. The view describes how the architecture enables the implementation of national and regional health policies, strategies and organisational structures. The stakeholders of the second view, the service viewpoint, are the care providers, health professionals, patients and citizens. The view describes how the architecture supports and enables regional care delivery and process management including continuity of care (shared care) and citizen-centred health services. The stakeholders of the third view, the engineering view, are those that design, build and implement the RHCN. The view comprises four sub views: software engineering, IT services engineering, security and data. The proposed architecture is founded into the main stream of how distributed computing environments are evolving. The architecture is realised using the web services approach. A number of well established technology platforms and generic standards exist that can be used to implement the software components. The software components that are specified in PICNIC are implemented in Open Source.

  17. Architectural geometry

    KAUST Repository

    Pottmann, Helmut

    2014-11-26

    Around 2005 it became apparent in the geometry processing community that freeform architecture contains many problems of a geometric nature to be solved, and many opportunities for optimization which however require geometric understanding. This area of research, which has been called architectural geometry, meanwhile contains a great wealth of individual contributions which are relevant in various fields. For mathematicians, the relation to discrete differential geometry is significant, in particular the integrable system viewpoint. Besides, new application contexts have become available for quite some old-established concepts. Regarding graphics and geometry processing, architectural geometry yields interesting new questions but also new objects, e.g. replacing meshes by other combinatorial arrangements. Numerical optimization plays a major role but in itself would be powerless without geometric understanding. Summing up, architectural geometry has become a rewarding field of study. We here survey the main directions which have been pursued, we show real projects where geometric considerations have played a role, and we outline open problems which we think are significant for the future development of both theory and practice of architectural geometry.

  18. Application architectures of enterprise information systems versus service oriented architecture

    Directory of Open Access Journals (Sweden)

    Milan Mišovič

    2007-01-01

    Full Text Available There are two different enterprise IS architectures, older application architecture and younger service oriented architecture. The application architecture its structural element is a classical web-based application can accept a partial or complex solution of enterprise IS. The first has got problems with data-process-communication integrity disturbing among IS applications. The second is convenient for large enterprises not for small and intermediate. Classical web-based applications are too inflexible to accepted necessary changes concerning a progress in the enterprise market-production environment.The service oriented architecture of IS can be based on enterprise web-services. Computerization of such small and flexible units can be given by classical web-services. There is constructed a new web-based application that plays a structural unit role for service oriented architecture. This application consists of a sequence formed by enterprise web-services calling. Enterprise web-services can easily accept necessary changes concerning a progress in the enterprise market-production environment. That‘s why contemporary younger service oriented architecture seems to be more acceptable for any enterprise than older application architecture.

  19. Transformative pedagogy in architecture and urbanism [Ashraf Salama

    OpenAIRE

    Elnokaly, Amira

    2010-01-01

    This is rather an interesting book on pedagogy in architectural and urban education by Ashraf M. Salama. Transformative Pedagogy in Architecture and Urbanism represents a new cycle of pedagogical debate on architecture and urbanism, setting the stage for debating future visions of transformative pedagogy and its impact on design education. Publisher: UMBAU VERLAG, Paperback: 208 pages including illustrations, Solingen, Germany 2009 ISBN 978-3937954-042

  20. Architectural Theatricality

    DEFF Research Database (Denmark)

    Tvedebrink, Tenna Doktor Olsen

    This PhD thesis is motived by a personal interest in the theoretical, practical and creative qualities of architecture. But also a wonder and curiosity about the cultural and social relations architecture represents through its occupation with both the sciences and the arts. Inspired by present...... and well-being, as well as outline a set of basic design principles ‘predicting’ the future interior architectural qualities of patient eating environments. Methodologically the thesis is based on an explorative study employing an abductive approach and hermeneutic-interpretative strategy utilizing tactics...... such as a literature review, timeline and historical outline to create a “knowledge map”, which in an eclectic manner merges the positive, normative and polemical knowledge rooted in research, objects and writings. The results of these investigations show that sparse researchbased knowledge exist directly taking...

  1. Architectural Engineers

    DEFF Research Database (Denmark)

    Petersen, Rikke Premer

    engineering is addresses from two perspectives – as an educational response and an occupational constellation. Architecture and engineering are two of the traditional design professions and they frequently meet in the occupational setting, but at educational institutions they remain largely estranged....... The paper builds on a multi-sited study of an architectural engineering program at the Technical University of Denmark and an architectural engineering team within an international engineering consultancy based on Denmark. They are both responding to new tendencies within the building industry where...... the role of engineers and architects increasingly overlap during the design process, but their approaches reflect different perceptions of the consequences. The paper discusses some of the challenges that design education, not only within engineering, is facing today: young designers must be equipped...

  2. Military Vision Research Program

    Science.gov (United States)

    2012-10-01

    a result, optic nerve or brain injury can lead to permanent loss of vision or cognitive functions. Unfortunately, there are currently no medical...foveal lesion (macular hole). Vision Res. 39, 2421–2427 (1999). 5. Amsler, M. L’examen qualitatif de la fonction maculaire. Ophthalmologica 114, 248

  3. Computer vision for sports

    DEFF Research Database (Denmark)

    Thomas, Graham; Gade, Rikke; Moeslund, Thomas B.

    2017-01-01

    fixed to players or equipment is generally not possible. This provides a rich set of opportunities for the application of computer vision techniques to help the competitors, coaches and audience. This paper discusses a selection of current commercial applications that use computer vision for sports...

  4. New Term, New Vision?

    Science.gov (United States)

    Ravenhall, Mark

    2011-01-01

    During the affluent noughties it was sometimes said of government that it had "more visions than Mystic Meg and more pilots than British Airways". In 2011, the pilots, the pathfinders, the new initiatives are largely gone--implementation is the name of the game--but the visions remain. The latest one, as it affects adult learners, is in…

  5. Degas: Vision and Perception.

    Science.gov (United States)

    Kendall, Richard

    1988-01-01

    The art of Edgar Degas is discussed in relation to his impaired vision, including amblyopia, later blindness in one eye, corneal scarring, and photophobia. Examined are ways in which Degas compensated for vision problems, and dominant themes of his art such as the process of perception and spots of brilliant light. (Author/JDD)

  6. Jane Addams’ Social Vision

    DEFF Research Database (Denmark)

    Villadsen, Kaspar

    2018-01-01

    resonated with key tenets of social gospel theology, which imbued her texts with an overarching vision of humanity’s progressive history. It is suggested that Addams’ vision of a major transition in industrial society, one involving a BChristian renaissance^ and individuals’ transformation into Bsocialized...

  7. Copenhagen Energy Vision

    DEFF Research Database (Denmark)

    Mathiesen, Brian Vad; Lund, Rasmus Søgaard; Connolly, David

    The short-term goal for The City of Copenhagen is a CO2 neutral energy supply by the year 2025, and the long-term vision for Denmark is a 100% renewable energy (RE) supply by the year 2050. In this project, it is concluded that Copenhagen plays a key role in this transition. The long-term vision...

  8. Visions, Actions and Partnerships

    International Development Research Centre (IDRC) Digital Library (Canada)

    freelance

    Evaluation Association (AFREA). Comments on this document can be sent to ccaa@idrc.ca. Introduction. “Visions, actions, partnerships” (VAP) is presented as a participatory tool that can be used ... The tool embraces the philosophy of the Visions actions requests approach (Beaulieu et al,. 2002) based on the formulation of ...

  9. Reframing Architecture

    DEFF Research Database (Denmark)

    Riis, Søren

    2013-01-01

    I would like to thank Prof. Stephen Read (2011) and Prof. Andrew Benjamin (2011) for both giving inspiring and elaborate comments on my article “Dwelling in-between walls: the architectural surround”. As I will try to demonstrate below, their two different responses not only supplement my article...... focuses on how the absence of an initial distinction might threaten the endeavour of my paper. In my reply to Read and Benjamin, I will discuss their suggestions and arguments, while at the same time hopefully clarifying the postphenomenological approach to architecture....

  10. Multithreading architecture

    CERN Document Server

    Nemirovsky, Mario

    2013-01-01

    Multithreaded architectures now appear across the entire range of computing devices, from the highest-performing general purpose devices to low-end embedded processors. Multithreading enables a processor core to more effectively utilize its computational resources, as a stall in one thread need not cause execution resources to be idle. This enables the computer architect to maximize performance within area constraints, power constraints, or energy constraints. However, the architectural options for the processor designer or architect looking to implement multithreading are quite extensive and

  11. Panoramic stereo sphere vision

    Science.gov (United States)

    Feng, Weijia; Zhang, Baofeng; Röning, Juha; Zong, Xiaoning; Yi, Tian

    2013-01-01

    Conventional stereo vision systems have a small field of view (FOV) which limits their usefulness for certain applications. While panorama vision is able to "see" in all directions of the observation space, scene depth information is missed because of the mapping from 3D reference coordinates to 2D panoramic image. In this paper, we present an innovative vision system which builds by a special combined fish-eye lenses module, and is capable of producing 3D coordinate information from the whole global observation space and acquiring no blind area 360°×360° panoramic image simultaneously just using single vision equipment with one time static shooting. It is called Panoramic Stereo Sphere Vision (PSSV). We proposed the geometric model, mathematic model and parameters calibration method in this paper. Specifically, video surveillance, robotic autonomous navigation, virtual reality, driving assistance, multiple maneuvering target tracking, automatic mapping of environments and attitude estimation are some of the applications which will benefit from PSSV.

  12. Machine Vision Handbook

    CERN Document Server

    2012-01-01

    The automation of visual inspection is becoming more and more important in modern industry as a consistent, reliable means of judging the quality of raw materials and manufactured goods . The Machine Vision Handbook  equips the reader with the practical details required to engineer integrated mechanical-optical-electronic-software systems. Machine vision is first set in the context of basic information on light, natural vision, colour sensing and optics. The physical apparatus required for mechanized image capture – lenses, cameras, scanners and light sources – are discussed followed by detailed treatment of various image-processing methods including an introduction to the QT image processing system. QT is unique to this book, and provides an example of a practical machine vision system along with extensive libraries of useful commands, functions and images which can be implemented by the reader. The main text of the book is completed by studies of a wide variety of applications of machine vision in insp...

  13. Light Vision Color

    Science.gov (United States)

    Valberg, Arne

    2005-04-01

    Light Vision Color takes a well-balanced, interdisciplinary approach to our most important sensory system. The book successfully combines basics in vision sciences with recent developments from different areas such as neuroscience, biophysics, sensory psychology and philosophy. Originally published in 1998 this edition has been extensively revised and updated to include new chapters on clinical problems and eye diseases, low vision rehabilitation and the basic molecular biology and genetics of colour vision. Takes a broad interdisciplinary approach combining basics in vision sciences with the most recent developments in the area Includes an extensive list of technical terms and explanations to encourage student understanding Successfully brings together the most important areas of the subject in to one volume

  14. From green architecture to architectural green

    DEFF Research Database (Denmark)

    Earon, Ofri

    2011-01-01

    that describes the architectural exclusivity of this particular architecture genre. The adjective green expresses architectural qualities differentiating green architecture from none-green architecture. Currently, adding trees and vegetation to the building’s facade is the main architectural characteristics......The paper investigates the topic of green architecture from an architectural point of view and not an energy point of view. The purpose of the paper is to establish a debate about the architectural language and spatial characteristics of green architecture. In this light, green becomes an adjective...... of green architecture. The paper argues that this greenification of facades is insufficient. The green is only a skin cladding the exterior envelope without having a spatial significance. Through the paper it is proposed to flip the order of words from green architecture to architectural green...

  15. Taking Care of Your Vision

    Science.gov (United States)

    ... Parents - or Other Adults Taking Care of Your Vision KidsHealth > For Teens > Taking Care of Your Vision ... are important parts of keeping your peepers perfect. Vision Basics One of the best things you can ...

  16. Architecture of Glaciotectonic Complexes

    Directory of Open Access Journals (Sweden)

    Stig A. Schack Pedersen

    2014-10-01

    Full Text Available Glaciotectonic studies are an integrated part of the Quaternary geological research carried out by the Danish geological survey. Almost all the hilly areas in Denmark were created or affected by glaciotectonic deformations, and the features are included in the mapping of surface near deposits. For the mapping and support of constructing 3D geological models a classification of architecture of glaciotectonic complexes is suggested. The important elements for classification of architecture are the surfaces. Four orders of surfaces are defined for glaciotectonic complexes: first-order surfaces are décollement surfaces and glaciotectonic unconformities; second-order surfaces are ramps and flats—the thrust faults; third-order surfaces are folded beds—anticlines and synclines; and fourth-order surfaces are small scale folds and faults—kink bands, conjugate faults, box folds, etc. The most important first-order surface is the décollement surface. This surface limits the glaciotectonic complex at its base and controls the extent of glaciotectonic disturbances. Below this surface, ordinary flat lying planar bedding occurs, whereas above the surface a number of structures are present characteristic of second- to fourth-order elements in the glaciotectonic architecture. The other first-order surface is the topographic top of the glaciotectonic complex, which eventually may be replaced by a truncating unconformity.

  17. Hijazi Architectural Object Library (haol)

    Science.gov (United States)

    Baik, A.; Boehm, J.

    2017-02-01

    As with many historical buildings around the world, building façades are of special interest; moreover, the details of such windows, stonework, and ornaments give each historic building its individual character. Each object of these buildings must be classified in an architectural object library. Recently, a number of researches have been focusing on this topic in Europe and Canada. From this standpoint, the Hijazi Architectural Objects Library (HAOL) has reproduced Hijazi elements as 3D computer models, which are modelled using a Revit Family (RFA). The HAOL will be dependent on the image survey and point cloud data. The Hijazi Object such as Roshan and Mashrabiyah, become as vocabulary of many Islamic cities in the Hijazi region such as Jeddah in Saudi Arabia, and even for a number of Islamic historic cities such as Istanbul and Cairo. These architectural vocabularies are the main cause of the beauty of these heritage. However, there is a big gap in both the Islamic architectural library and the Hijazi architectural library to provide these unique elements. Besides, both Islamic and Hijazi architecture contains a huge amount of information which has not yet been digitally classified according to period and styles. Due to this issue, this paper will be focusing on developing of Heritage BIM (HBIM) standards and the HAOL library to reduce the cost and the delivering time for heritage and new projects that involve in Hijazi architectural styles. Through this paper, the fundamentals of Hijazi architecture informatics will be provided via developing framework for HBIM models and standards. This framework will provide schema and critical information, for example, classifying the different shapes, models, and forms of structure, construction, and ornamentation of Hijazi architecture in order to digitalize parametric building identity.

  18. Textile Architecture

    DEFF Research Database (Denmark)

    Heimdal, Elisabeth Jacobsen

    2010-01-01

    Textiles can be used as building skins, adding new aesthetic and functional qualities to architecture. Just like we as humans can put on a coat, buildings can also get dressed. Depending on our mood, or on the weather, we can change coat, and so can the building. But the idea of using textiles...

  19. Software Architecture

    NARCIS (Netherlands)

    Tekinerdogan, B.; Zdun, Uwe; Babar, Ali

    2016-01-01

    This book constitutes the proceedings of the 10th European Conference on Software Architecture, ECSA 2016, held in Copenhagen, Denmark, in November/December 2016.

    The 13 full papers presented together with 12 short papers were carefully reviewed and selected from 84 submissions. They are

  20. VISION User Guide - VISION (Verifiable Fuel Cycle Simulation) Model

    Energy Technology Data Exchange (ETDEWEB)

    Jacob J. Jacobson; Robert F. Jeffers; Gretchen E. Matthern; Steven J. Piet; Benjamin A. Baker; Joseph Grimm

    2009-08-01

    The purpose of this document is to provide a guide for using the current version of the Verifiable Fuel Cycle Simulation (VISION) model. This is a complex model with many parameters; the user is strongly encouraged to read this user guide before attempting to run the model. This model is an R&D work in progress and may contain errors and omissions. It is based upon numerous assumptions. This model is intended to assist in evaluating “what if” scenarios and in comparing fuel, reactor, and fuel processing alternatives at a systems level for U.S. nuclear power. The model is not intended as a tool for process flow and design modeling of specific facilities nor for tracking individual units of fuel or other material through the system. The model is intended to examine the interactions among the components of a fuel system as a function of time varying system parameters; this model represents a dynamic rather than steady-state approximation of the nuclear fuel system. VISION models the nuclear cycle at the system level, not individual facilities, e.g., “reactor types” not individual reactors and “separation types” not individual separation plants. Natural uranium can be enriched, which produces enriched uranium, which goes into fuel fabrication, and depleted uranium (DU), which goes into storage. Fuel is transformed (transmuted) in reactors and then goes into a storage buffer. Used fuel can be pulled from storage into either separation of disposal. If sent to separations, fuel is transformed (partitioned) into fuel products, recovered uranium, and various categories of waste. Recycled material is stored until used by its assigned reactor type. Note that recovered uranium is itself often partitioned: some RU flows with recycled transuranic elements, some flows with wastes, and the rest is designated RU. RU comes out of storage if needed to correct the U/TRU ratio in new recycled fuel. Neither RU nor DU are designated as wastes. VISION is comprised of several

  1. Literature and information in vision care and vision science.

    Science.gov (United States)

    Goss, David A

    2008-11-01

    The explosion of information in vision care and vision science makes keeping up with the literature and information in the field challenging. This report examines the nature of literature and information in vision care and vision science. A variety of topics are discussed, including the general nature of scientific and clinical journals, journals in vision science and vision care, resources available for searches for literature and information, and issues involved in the evaluation of journals and other information sources. Aspects of the application of citation analysis to vision care and vision science are reviewed, and a new citation analysis of a leading textbook in vision care (Borish's Clinical Refraction) is presented. This report is directed toward anyone who wants to be more informed about the literature of vision care and vision science, whether they are students, clinicians, educators, or librarians.

  2. Filtering and polychromatic vision in mantis shrimps: themes in visible and ultraviolet vision.

    Science.gov (United States)

    Cronin, Thomas W; Bok, Michael J; Marshall, N Justin; Caldwell, Roy L

    2014-01-01

    Stomatopod crustaceans have the most complex and diverse assortment of retinal photoreceptors of any animals, with 16 functional classes. The receptor classes are subdivided into sets responsible for ultraviolet vision, spatial vision, colour vision and polarization vision. Many of these receptor classes are spectrally tuned by filtering pigments located in photoreceptors or overlying optical elements. At visible wavelengths, carotenoproteins or similar substances are packed into vesicles used either as serial, intrarhabdomal filters or lateral filters. A single retina may contain a diversity of these filtering pigments paired with specific photoreceptors, and the pigments used vary between and within species both taxonomically and ecologically. Ultraviolet-filtering pigments in the crystalline cones serve to tune ultraviolet vision in these animals as well, and some ultraviolet receptors themselves act as birefringent filters to enable circular polarization vision. Stomatopods have reached an evolutionary extreme in their use of filter mechanisms to tune photoreception to habitat and behaviour, allowing them to extend the spectral range of their vision both deeper into the ultraviolet and further into the red.

  3. Development of Binocular Vision

    Directory of Open Access Journals (Sweden)

    Muhammad Syauqie

    2014-01-01

    Full Text Available AbstrakPenglihatan binokular secara harfiah berarti penglihatan dengan 2 mata dan dengan adanya penglihatan binokular, kita dapat melihat dunia dalam 3 dimensi meskipun bayangan yang jatuh pada kedua retina merupakan bayangan 2 dimensi. Penglihatan binokular juga memberikan beberapa keuntungan berupa ketajaman visual, kontras sensitivitas, dan lapangan pandang penglihatan yang lebih baik dibandingkan dengan penglihatan monokular. Penglihatan binokular normal memerlukan aksis visual yang jernih, fusi sensoris, dan fusi motoris. Pada manusia, periode sensitif dari perkembangan penglihatan binokular dimulai pada usia sekitar 3 bulan, mencapai puncaknya pada usia 1 hingga 3 tahun, telah berkembang sempurna pada usia 4 tahun dan secara perlahan menurun hingga berhenti pada usia 9 tahun. Berbagai hambatan, berupa hambatan sensoris, motoris,dan sentral, dalam jalur refleks sangat mungkin akan menghambat perkembangan dari penglihatan binokular terutama pada periode sensitif sewaktu 2 tahun pertama kehidupan.Kata kunci: penglihatan binokular, perkembangan, fusi, stereopsisAbstractBinocular vision literally means vision with two eyes and with binocular vision, we can see the world in three dimensions even though the images that fall on both of the retina were the 2-dimensional images. Binocular vision also provide some advantages included improved visual acuity, contrast sensitivity, and visual field compared with monocular vision. Normal binocular vision requires a clear visual axis, sensory fusion, and motoric fusion. In human, the sensitive period of binocular vision development began at around 3 months of age, reaching its peak at the age of 1 to 3 years, had developed completely at the age of 4 years and gradually declined until it stops at the age of 9 years. Various obstacles, such as sensory, motoric, and central obstacles, within the reflex pathway were very likely to inhibited the development of binocular vision, especially in sensitive period

  4. Stereo vision and strabismus.

    Science.gov (United States)

    Read, J C A

    2015-02-01

    Binocular stereopsis, or stereo vision, is the ability to derive information about how far away objects are, based solely on the relative positions of the object in the two eyes. It depends on both sensory and motor abilities. In this review, I briefly outline some of the neuronal mechanisms supporting stereo vision, and discuss how these are disrupted in strabismus. I explain, in some detail, current methods of assessing stereo vision and their pros and cons. Finally, I review the evidence supporting the clinical importance of such measurements.

  5. Anchoring visions in organizations

    DEFF Research Database (Denmark)

    Simonsen, Jesper

    1999-01-01

    as by those involved in the actual implementation. A model depicting a recent trend within systems development is presented: Organizations rely on purchasing generic software products and/or software development outsourced to external contractors. A contemporary method for participatory design, where......This paper introduces the term 'anchoring' within systems development: Visions, developed through early systems design within an organization, need to be deeply rooted in the organization. A vision's rationale needs to be understood by those who decide if the vision should be implemented as well...

  6. A Model of Trusted Connection Architecture

    OpenAIRE

    Zhang Xun; Wang Zhihao; Zhi Yong; Yuan Hui

    2017-01-01

    According to that traditional trusted network connection architecture (TNC) has limitations on dynamic network environment and the user behavior support, we develop TCA to propose a trusted connection architecture supporting behavior measurement (TCA-SBM), besides, the structure diagram of network architecture is given. Through introducing user behavior measure elements, TCA-SBM can conduct measurement on the whole network in time dimension periodically, and refine the measurement on network ...

  7. MUF architecture /art London

    DEFF Research Database (Denmark)

    Svenningsen Kajita, Heidi

    2009-01-01

    Om MUF architecture samt interview med Liza Fior og Katherine Clarke, partnere i muf architecture/art......Om MUF architecture samt interview med Liza Fior og Katherine Clarke, partnere i muf architecture/art...

  8. Artificial Vision: Vision of a Newcomer

    Science.gov (United States)

    Fujikado, Takashi; Sawai, Hajime; Tano, Yasuo

    The Japanese Consortium for an Artificial Retina has developed a new stimulating method named Suprachoroidal-Transretinal Stimulation (STS). Using STS, electrically evoked potentials (EEPs) were effectively elicited in Royal College of Surgeons (RCS) rats and in rabbits and cats with normal vision, using relatively small stimulus currents, such that the spatial resolution appeared to be adequate for a visual prosthesis. The histological analysis showed no damage to the rabbit retina when electrical currents sufficient to elicit distinct EEPs were applied. It was also shown that transcorneal electrical stimulation (TES) to the retina prevented the death of retinal ganglion cells (RGCs). STS, which is less invasive than other retinal prostheses, could be one choice to achieve artificial vision, and the optimal parameters of electrical stimulation may also be effective for the neuroprotection of residual RGCs.

  9. Psychological understanding of anthropomorphism in theatre architecture.

    Science.gov (United States)

    Pavelić, D

    1998-12-01

    Traces of collective projective mechanisms in architecture in general are sedimenting for millenniums. Such case is also with theatre, an old institution of a great social importance. This paper discovers anthropomorphic elements of theatrical architecture. They have been transformed through history into patterns outlined and explained by the author.

  10. Assured information flow capping architecture

    Science.gov (United States)

    Black, M. D.; Carvin, N. A.

    1985-05-01

    The Tactical Air Control System (TACS) is that set of Tactical Air Force assets used to assess the air and ground situation, and to plan, allocate, commit, and control assigned resources. Previous studies noted that the TACS elements should be more highly distributed to improve survivability in the battlefield of the future. This document reports on the results of the Assured Information Flow Capping Architecture study, which developed governing concepts for communications architectures that can support the information flow requirements of a future, distributed TACS. Architecture comprising existing and planned communications equipment were postulated and compared with a set of goals to identify deficiencies. Architectures using new equipment that resolve many of the deficiencies were then postulated, and areas needing further investigation were identified.

  11. Transverse pumped laser amplifier architecture

    Science.gov (United States)

    Bayramian, Andrew James; Manes, Kenneth; Deri, Robert; Erlandson, Al; Caird, John; Spaeth, Mary

    2013-07-09

    An optical gain architecture includes a pump source and a pump aperture. The architecture also includes a gain region including a gain element operable to amplify light at a laser wavelength. The gain region is characterized by a first side intersecting an optical path, a second side opposing the first side, a third side adjacent the first and second sides, and a fourth side opposing the third side. The architecture further includes a dichroic section disposed between the pump aperture and the first side of the gain region. The dichroic section is characterized by low reflectance at a pump wavelength and high reflectance at the laser wavelength. The architecture additionally includes a first cladding section proximate to the third side of the gain region and a second cladding section proximate to the fourth side of the gain region.

  12. Architectural fragments

    DEFF Research Database (Denmark)

    Bang, Jacob Sebastian

    2018-01-01

    . I try to invent the ways of drawing the models - that decode and unfold them into architectural fragments- into future buildings or constructions in the landscape. [1] Luigi Moretti: Italian architect, 1907 - 1973 [2] Man Ray: American artist, 1890 - 1976. in 2015, I saw the wonderful exhibition......I have created a large collection of plaster models: a collection of Obstructions, errors and opportunities that may develop into architecture. The models are fragments of different complex shapes as well as more simple circular models with different profiling and diameters. In this contect I have...... been studying Luigi Moretti's [1] plastermodel - "the Model of the inner spaces of the Saint Maria of the Divine Providence" - in which context I see my own models. In 1934, Man Ray [2] photographed mathematical rmodels (in plaster) at the Henri Poincaré Institute in Paris and later used...

  13. delta-vision

    Data.gov (United States)

    California Department of Resources — Delta Vision is intended to identify a strategy for managing the Sacramento-San Joaquin Delta as a sustainable ecosystem that would continue to support environmental...

  14. Computer Vision Syndrome.

    Science.gov (United States)

    Randolph, Susan A

    2017-07-01

    With the increased use of electronic devices with visual displays, computer vision syndrome is becoming a major public health issue. Improving the visual status of workers using computers results in greater productivity in the workplace and improved visual comfort.

  15. Ohio's Comprehensive Vision Project

    Science.gov (United States)

    Bunner, Richard T.

    1973-01-01

    A vision screening program in seven Ohio counties tested 3,261 preschool children and 44,885 school age children for problems of distance visual acuity, muscle balance, and observable eye problems. (DB)

  16. What Is Low Vision?

    Science.gov (United States)

    ... Everyday Living Roadmap to Living with Vision Loss Essential Skills Helpful Products and Technology Home Modification Recreation ... tasks easier, such as clocks with larger numbers, writing guides, or black and white cutting boards. Low ...

  17. Home vision tests

    Science.gov (United States)

    ... or eye disease and you should have a professional eye examination. Amsler grid test: If the grid appears distorted or broken, there may be a problem with the retina . Distance vision test: If you do not read the ...

  18. Marshall Application Realignment System (MARS) Architecture

    Science.gov (United States)

    Belshe, Andrea; Sutton, Mandy

    2010-01-01

    The Marshall Application Realignment System (MARS) Architecture project was established to meet the certification requirements of the Department of Defense Architecture Framework (DoDAF) V2.0 Federal Enterprise Architecture Certification (FEAC) Institute program and to provide added value to the Marshall Space Flight Center (MSFC) Application Portfolio Management process. The MARS Architecture aims to: (1) address the NASA MSFC Chief Information Officer (CIO) strategic initiative to improve Application Portfolio Management (APM) by optimizing investments and improving portfolio performance, and (2) develop a decision-aiding capability by which applications registered within the MSFC application portfolio can be analyzed and considered for retirement or decommission. The MARS Architecture describes a to-be target capability that supports application portfolio analysis against scoring measures (based on value) and overall portfolio performance objectives (based on enterprise needs and policies). This scoring and decision-aiding capability supports the process by which MSFC application investments are realigned or retired from the application portfolio. The MARS Architecture is a multi-phase effort to: (1) conduct strategic architecture planning and knowledge development based on the DoDAF V2.0 six-step methodology, (2) describe one architecture through multiple viewpoints, (3) conduct portfolio analyses based on a defined operational concept, and (4) enable a new capability to support the MSFC enterprise IT management mission, vision, and goals. This report documents Phase 1 (Strategy and Design), which includes discovery, planning, and development of initial architecture viewpoints. Phase 2 will move forward the process of building the architecture, widening the scope to include application realignment (in addition to application retirement), and validating the underlying architecture logic before moving into Phase 3. The MARS Architecture key stakeholders are most

  19. Synthetic Vision Systems

    Science.gov (United States)

    Prinzel, L.J.; Kramer, L.J.

    2009-01-01

    A synthetic vision system is an aircraft cockpit display technology that presents the visual environment external to the aircraft using computer-generated imagery in a manner analogous to how it would appear to the pilot if forward visibility were not restricted. The purpose of this chapter is to review the state of synthetic vision systems, and discuss selected human factors issues that should be considered when designing such displays.

  20. Leadership and vision

    OpenAIRE

    Rogers, Anita; Reynolds, Jill

    2003-01-01

    �Leadership and vision' is the subject of Chapter 3 and Rogers and Reynolds look at how managers can encourage leadership from other people, whether in their team, the organisation or in collaborative work with different agencies. They explore leadership style, and the extent to which managers can and should adapt their personal style to the differing needs of situations and people. Frontline managers may not always feel that they have much opportunity to influence the grander vision and st...

  1. The vision trap.

    Science.gov (United States)

    Langeler, G H

    1992-01-01

    At Mentor Graphics Corporation, Gerry Langeler was the executive responsible for vision, and vision, he discovered, has the power to weaken a strong company. Mentor helped to invent design-automation electronics in the early 1980s, and by the end of the decade, it dominated the industry. In its early days, fighting to survive, Mentor's motto was Build Something People Will Buy. Then when clear competition emerged in the form of Daisy Systems, a startup that initially outsold Mentor, the watchword became Beat Daisy. Both "visions" were pragmatic and immediate. They gave Mentor a sense of purpose as it developed its products and gathered momentum. Once Daisy was beaten, however, company vision began to self-inflate. As Mentor grew more and more successful, Langeler formulated vision statements that were more and more ambitious, grand, and inspirational. The company traded its gritty determination to survive for a dream of future glory. The once explicit call for effective action became a fervid cry for abstract perfection. The first step was Six Boxes, a transitional vision that combined goals for success in six business areas with grandiose plans to compete with IBM at the level of billion-dollar revenues. From there, vision stepped up to the 10X Imperative, a quality-improvement program that focused on arbitrary goals and measures that were, in fact, beyond the company's control. The last escalation came when Mentor Graphics decided to Change the Way the World Designs. The company had stopped making product and was making poetry. Finally, in 1991, after six years of increasing self-infatuation, Mentor hit a wall of decreasing indicators. Langeler, who had long since begun to doubt the value of abstract visions, reinstated Build Something People Will Buy. And Mentor was back to basics, a sense of purpose back to its workplace.

  2. Performative Architecture and Urban Spaces

    DEFF Research Database (Denmark)

    Kiib, Hans

    2008-01-01

      3 Workshops one exibition   Three conceptual architectural workshops took take place in parallel from August 16th - 22nd 2008. Each workshop carried a specific methodology and the goal is to come up with conceptual proposals that could be further developed for selected sites in the city...... of Aalborg. They took as its departure one of the sub-themes of the assignment and develop it within the present context of Aalborg. It is our intention to develop new types of open learning environments and public domains as well as places of experiment and uncertainty. The Format of the Workshops...... The workshop model includes an open workshop where a handful of international architects are invited to spend five days with local architects, engineers and scholars contributing to a work of architectural vision and quality. The workshop includes presentations and discussions and development of projects...

  3. Monocular Vision SLAM for Indoor Aerial Vehicles

    Directory of Open Access Journals (Sweden)

    Koray Çelik

    2013-01-01

    Full Text Available This paper presents a novel indoor navigation and ranging strategy via monocular camera. By exploiting the architectural orthogonality of the indoor environments, we introduce a new method to estimate range and vehicle states from a monocular camera for vision-based SLAM. The navigation strategy assumes an indoor or indoor-like manmade environment whose layout is previously unknown, GPS-denied, representable via energy based feature points, and straight architectural lines. We experimentally validate the proposed algorithms on a fully self-contained microaerial vehicle (MAV with sophisticated on-board image processing and SLAM capabilities. Building and enabling such a small aerial vehicle to fly in tight corridors is a significant technological challenge, especially in the absence of GPS signals and with limited sensing options. Experimental results show that the system is only limited by the capabilities of the camera and environmental entropy.

  4. WIND PROTECTION OF LANDSCAPE ARCHITECTURE

    Directory of Open Access Journals (Sweden)

    Trubitsyna Natalja Anatolevna

    2017-07-01

    Full Text Available The article discusses the interaction between the wind regime and the landscape. Examples of objects of landscape architecture in high-tech and science-intensive spheres, such as the launch pad of a spacecraft, are given. Wind protection is represented as a result of work on wind power engineering and a means of increasing bioclimatic comfort. The terms of landscape architecture are disclosed and mutual influence on the climate and impact on woody-shrub vegetation and field crops are analyzed. The phenomenon of air permeability for optimal operation of windproof structures and orientations of geoplastics and dendroplastics is described. In this paper, a classification of terrain types is described with a description of their elemental composition, as well as various categories of landscape. The proposal to consider the landscape as a territorial complex, and landscape buildings, landscape-architectural structures as objects of landscape architecture possessing properties of wind protection and air permeability was introduced. Thus, the concept of a landscape-architectural complex as a single group of landscape-architectural objects located on the territory and connected by a common system of communications, functions, technical elements and a visual image is formulated. Further research is based on the rationale for the use of the term ensemble in relation to the objects of the landscape and architectural complex and the identification of their design and planning features that can affect the parameters of wind protection and air permeability. The paper concludes that frequent coincidence of favorable for the fauna wind regime and mimicry of landscape architecture objects. The combination in the landscape of functions for wind protection and aesthetics is analyzed with analysis of such elements of landscape architecture as hedges and windproof properties of green plantations. In the work examples of wind engineering small architectural forms are

  5. Architecture between Process and Meta-Project

    Directory of Open Access Journals (Sweden)

    Carlo Franzato

    2015-11-01

    Full Text Available The challenge of contemporary architectural design is that of technological convergence between the physical and virtual world, from which concepts such as Smart City and WikiCity derive. This challenge can be faced by means of meta-project, intended as a design process. Not only the design and management of urban phenomena become increasingly more technical, but they also develop into increasingly more intellectual practices. Therefore, architecture must regain its leading role in thinking of the city and in the formation of a vision for the future. Design culture encompasses architectural design, industrial design, urbanism, landscape architecture and engineering. In this sense, the ecosystemic perspective, which is based on the notion of open system, allows for significant changes in the design process.

  6. Adaptive reconfigurable distributed sensor architecture

    Science.gov (United States)

    Akey, Mark L.

    1997-07-01

    The infancy of unattended ground based sensors is quickly coming to an end with the arrival of on-board GPS, networking, and multiple sensing capabilities. Unfortunately, their use is only first-order at best: GPS assists with sensor report registration; networks push sensor reports back to the warfighter and forwards control information to the sensors; multispectral sensing is a preset, pre-deployment consideration; and the scalability of large sensor networks is questionable. Current architectures provide little synergy among or within the sensors either before or after deployment, and do not map well to the tactical user's organizational structures and constraints. A new distributed sensor architecture is defined which moves well beyond single sensor, single task architectures. Advantages include: (1) automatic mapping of tactical direction to multiple sensors' tasks; (2) decentralized, distributed management of sensor resources and tasks; (3) software reconfiguration of deployed sensors; (4) network scalability and flexibility to meet the constraints of tactical deployments, and traditional combat organizations and hierarchies; and (5) adaptability to new battlefield communication paradigms such as BADD (Battlefield Analysis and Data Dissemination). The architecture is supported in two areas: a recursive, structural definition of resource configuration and management via loose associations; and a hybridization of intelligent software agents with tele- programming capabilities. The distributed sensor architecture is examined within the context of air-deployed ground sensors with acoustic, communication direction finding, and infra-red capabilities. Advantages and disadvantages of the architecture are examined. Consideration is given to extended sensor life (up to 6 months), post-deployment sensor reconfiguration, limited on- board sensor resources (processor and memory), and bandwidth. It is shown that technical tasking of the sensor suite can be automatically

  7. Excellence: The Importance of Vision and Work Ethic

    Science.gov (United States)

    Hill, Roger B.

    2010-01-01

    In this paper, the author discusses the topic of excellence and shares key aspects of excellence that he has found to be true in his life's journey. He discusses two elements of excellence, namely (1) "vision"; and (2) "work ethic", and describes some characteristics of each element. Three aspects: (1) interpersonal skills; (2) initiative; and (3)…

  8. Architectural Drawing

    DEFF Research Database (Denmark)

    Steinø, Nicolai

    2018-01-01

    is that computers can represent graphic ideas both faster and better than most medium-skilled draftsmen, drawing in design is not only about representing final designs. In fact, several steps involving the capacity to draw lie before the representation of a final design. Not only is drawing skills an important...... it is developed from empirical and partly introspective observations of the design process – from analysis over design development to the presentation of final designs – it seeks to corroborate these observations through literature on architectural drawing....

  9. IDA's Energy Vision 2050

    DEFF Research Database (Denmark)

    Mathiesen, Brian Vad; Lund, Henrik; Hansen, Kenneth

    IDA’s Energy Vision 2050 provides a Smart Energy System strategy for a 100% renewable Denmark in 2050. The vision presented should not be regarded as the only option in 2050 but as one scenario out of several possibilities. With this vision the Danish Society of Engineers, IDA, presents its third...... contribution for an energy strategy for Denmark. The IDA’s Energy Plan 2030 was prepared in 2006 and IDA’s Climate Plan was prepared in 2009. IDA’s Energy Vision 2050 is developed for IDA by representatives from The Society of Engineers and by a group of researchers at Aalborg University. It is based on state......-of-the-art knowledge about how low cost energy systems can be designed while also focusing on long-term resource efficiency. The Energy Vision 2050 has the ambition to focus on all parts of the energy system rather than single technologies, but to have an approach in which all sectors are integrated. While Denmark...

  10. Low Obstacle Detection Using Stereo Vision

    Science.gov (United States)

    2016-10-09

    clouds and keeps the model assumptions to a minimum. To evaluate the algorithm , a new stereo dataset is provided and made available online. We present...vehicles and ground robots, the detection of obstacles is an essential element for higher-level tasks such as navigation and path planning . The problem...OVERVIEW OF THE ALGORITHM The proposed algorithm relies on three inputs: (i) A dense 3D point cloud from a stereo-vision system calculated with Efficient

  11. Responsive Architecture and the Problem of Obsolescence

    Directory of Open Access Journals (Sweden)

    Mark Meagher

    2014-11-01

    Full Text Available Responsive architecture, a design field that has arisen in recent decades at the intersection of architecture and computer science, invokes a material response to digital information and implies the capacity of the building to respond dynamically to changing stimuli. The question I will address in the paper is whether it is possible for the responsive components of architecture to become a poetically expressive part of the building, and if so why this result has so rarely been achieved in contemporary and recent built work. The history of attitudes to- ward obsolescence in buildings is investigated as one explanation for the rarity of examples like the one considered here that successfully overcomes the rapid obsolescence of responsive components and makes these elements an integral part of the work of architecture. In conclusion I identify strategies for the design of responsive components as poetically expressive elements of architecture.

  12. Architecture as Relationship between unity and multiplicity

    Directory of Open Access Journals (Sweden)

    Dieter Eckert

    2015-11-01

    Full Text Available The tasks and goals of architecture are the same, today as in the past. What has changed are the conditions by which we reach them. The broadest phenomenon of the city has always been the presence and the simultaneity of public and private life. We live not only in private dwellings and buildings, but also in public streets and squares. Basically the house is an object. Each construction element, each architectural detail, is an object, which has to be designed. However, it is crucial in architecture that each architectural element is part of the construction in its entirety. The notion of the architectural profession must be reached through its Anschauung and reality is definitely the best school for our profession.

  13. Periodontium bestows vision!!

    Directory of Open Access Journals (Sweden)

    Minkle Gulati

    2016-01-01

    Full Text Available The role of periodontium in supporting the tooth structures is well-known. However, less is known about its contribution to the field of ophthalmology. Corneal diseases are among major causes of blindness affecting millions of people worldwide, for which synthetic keratoprosthesis was considered the last resort to restore vision. Yet, these synthetic keratoprosthesis suffered from serious limitations, especially the foreign body reactions invoked by them resulting in extrusion of the whole prosthesis from the eye. To overcome these shortcomings, an autologous osteo-odonto keratoprosthesis utilizing intraoral entities was introduced that could positively restore vision even in cases of severely damaged eyes. The successful functioning of this prosthesis, however, predominantly depended on the presence of a healthy periodontium for grafting. Therefore, the following short communication aims to acknowledge this lesser-known role of the periodontium and other oral structures in bestowing vision to the blind patients.

  14. Overview of sports vision

    Science.gov (United States)

    Moore, Linda A.; Ferreira, Jannie T.

    2003-03-01

    Sports vision encompasses the visual assessment and provision of sports-specific visual performance enhancement and ocular protection for athletes of all ages, genders and levels of participation. In recent years, sports vision has been identified as one of the key performance indicators in sport. It is built on four main cornerstones: corrective eyewear, protective eyewear, visual skills enhancement and performance enhancement. Although clinically well established in the US, it is still a relatively new area of optometric specialisation elsewhere in the world and is gaining increasing popularity with eyecare practitioners and researchers. This research is often multi-disciplinary and involves input from a variety of subject disciplines, mainly those of optometry, medicine, physiology, psychology, physics, chemistry, computer science and engineering. Collaborative research projects are currently underway between staff of the Schools of Physics and Computing (DIT) and the Academy of Sports Vision (RAU).

  15. Representing vision and blindness.

    Science.gov (United States)

    Ray, Patrick L; Cox, Alexander P; Jensen, Mark; Allen, Travis; Duncan, William; Diehl, Alexander D

    2016-01-01

    There have been relatively few attempts to represent vision or blindness ontologically. This is unsurprising as the related phenomena of sight and blindness are difficult to represent ontologically for a variety of reasons. Blindness has escaped ontological capture at least in part because: blindness or the employment of the term 'blindness' seems to vary from context to context, blindness can present in a myriad of types and degrees, and there is no precedent for representing complex phenomena such as blindness. We explore current attempts to represent vision or blindness, and show how these attempts fail at representing subtypes of blindness (viz., color blindness, flash blindness, and inattentional blindness). We examine the results found through a review of current attempts and identify where they have failed. By analyzing our test cases of different types of blindness along with the strengths and weaknesses of previous attempts, we have identified the general features of blindness and vision. We propose an ontological solution to represent vision and blindness, which capitalizes on resources afforded to one who utilizes the Basic Formal Ontology as an upper-level ontology. The solution we propose here involves specifying the trigger conditions of a disposition as well as the processes that realize that disposition. Once these are specified we can characterize vision as a function that is realized by certain (in this case) biological processes under a range of triggering conditions. When the range of conditions under which the processes can be realized are reduced beyond a certain threshold, we are able to say that blindness is present. We characterize vision as a function that is realized as a seeing process and blindness as a reduction in the conditions under which the sight function is realized. This solution is desirable because it leverages current features of a major upper-level ontology, accurately captures the phenomenon of blindness, and can be

  16. Binocular vision in glaucoma.

    Science.gov (United States)

    Reche-Sainz, J A; Gómez de Liaño, R; Toledano-Fernández, N; García-Sánchez, J

    2013-05-01

    To describe the possible impairment of binocular vision in primary open angle glaucoma (POAG) patients. A cross-sectional study was conducted on 58 glaucoma patients, 76 ocular hypertensives and 82 normal subjects. They were examined with a battery of binocular tests consisting of the measurement of phoria angles, amplitudes of fusion (AF), near point of convergence (NPC) assessment, an evaluation of suppression (Worth test), stereoacuity according to Titmus, and TNO tests. The patients with glaucoma showed significantly increased phoria angles, especially in near vision, compared with the ocular hypertensives and controls (P=.000). AF were reduced mainly in near distances compared to hypertensives and controls (P=.000). The NPC of glaucoma was higher than the other two groups (P=.000). No differences were found in the near-distance suppression test between the three groups (P=.682), but there were differences in the distance vision of patients with glaucoma compared to hypertensives (OR=3.867, 95% CI; 1.260-11.862; P=.008) and controls (OR= 5.831, 95% CI; 2.229-15.252; P=.000). The stereoacuity of patients with glaucoma was reduced in both tests (P=.001). POAG is mostly associated with, an increased exophoria in near vision, a decreased AF in near vision, a far-distance NPC, central suppression in far-vision, and a loss of stereoacuity. These changes do not seem to appear early as they were not observed in hypertensive patients versus controls. Copyright © 2011 Sociedad Española de Oftalmología. Published by Elsevier España, S.L. All rights reserved.

  17. Science Possibilities Enabled by the Mars Base Camp Human Exploration Architecture

    Science.gov (United States)

    Cichan, T.; Murrow, D. W.; Jolly, S. D.; Bierhaus, E. B.; Clark, B.

    2017-02-01

    The Mars Base Camp architecture study reveals scientific possibilities enabled by a crewed orbital base camp, and that collaborative human and robotic missions should be part of the vision for Mars exploration by 2050.

  18. Telescopic vision contact lens

    Science.gov (United States)

    Tremblay, Eric J.; Beer, R. Dirk; Arianpour, Ashkan; Ford, Joseph E.

    2011-03-01

    We present the concept, optical design, and first proof of principle experimental results for a telescopic contact lens intended to become a visual aid for age-related macular degeneration (AMD), providing magnification to the user without surgery or external head-mounted optics. Our contact lens optical system can provide a combination of telescopic and non-magnified vision through two independent optical paths through the contact lens. The magnified optical path incorporates a telescopic arrangement of positive and negative annular concentric reflectors to achieve 2.8x - 3x magnification on the eye, while light passing through a central clear aperture provides unmagnified vision.

  19. En vision for CBS?

    DEFF Research Database (Denmark)

    Thyssen, Ole

    2015-01-01

    Kommentar. CBS’ ry for at være et moderne Business University med forskere fra hele verden og forskningsmæssig dynamik faldt på gulvet. Udfordringen er nu at få samlet CBS forskere om en fælles vision.......Kommentar. CBS’ ry for at være et moderne Business University med forskere fra hele verden og forskningsmæssig dynamik faldt på gulvet. Udfordringen er nu at få samlet CBS forskere om en fælles vision....

  20. [Hallucinations in vision impairment].

    Science.gov (United States)

    Singh, Amardeep; Sørensen, Torben Lykke

    2011-01-03

    A 79-year-old female had vision loss due to wet age-related macular degeneration, corneal endothelial dystrophy with corneal oedema and cataract. She subsequently began hallucinating and saw imaginary vehicles, bridges, trees and houses on the road while driving (Charles Bonnet syndrome (CBS)). The hallucinations caused anxiety and distress. Her general practitioner started anti-anxiety therapy with no significant effect. Anti-vascular endothelial growth factor therapy and a corneal transplantation improved her visual acuity, decreased the frequency of hallucinations and resulted in complete remission of the her anxiety. Thus, vision-improving treatment of eye disease may decrease CBS-associated anxiety.

  1. Demokratiske stemmer og visioner

    DEFF Research Database (Denmark)

    Petersen, Hanne

    2014-01-01

    Artiklen knytter den amerikanske digter Walt Whitmans demokratiske og litterære visioner i det 19. århundrede til den svenske stemmeretsforkæmper Elin Wägners overvejelser over køn, krig og demokrati i det 20. århundrede. Den slutter med referencer til "Democracy Incorporated" fra 2008 af den ame...... amerikanske professor i politisk filosofi, Sheldon Wolin, der beskriver totalitarianismens spejlvending og demokratiets perversion i en amerikansk sammenhæng. Demokratiets overlevelse kan afhænge af stemmer og visioner fra uventede steder....

  2. Low vision services for vision rehabilitation in the United Kingdom

    OpenAIRE

    Culham, L E; Ryan, B.; Jackson, A.J.; Hill, A R; Jones, B; Miles, C.; Young, J. A.; Bunce, C; Bird, A C

    2002-01-01

    Aim: Little is known about the distribution and methods of delivery of low vision services across the United Kingdom. The purpose of this study was to determine the type and location of low vision services within the UK.

  3. Image Understanding Architecture Prototype Evaluation and Development

    Science.gov (United States)

    1993-06-01

    Edward M. Riseman, David B. Shu, and J. Gregory Nash, The Image Understanding Architecture, International Journal of Computer Vision, Vol. 2, Kluwer...and (statically connected) Networks [ Hockney 851. In a Switched-system, shown in figure 2.4, a switch [U unit (also called communication network...computing can be found in ( Hockney 85]. 2.12 Our terminology for identifying Parallel Systems The functional model of the ICAP covers more than one

  4. The architecture of a modern military health information system.

    Science.gov (United States)

    Mukherji, Raj J; Egyhazy, Csaba J

    2004-06-01

    This article describes a melding of a government-sponsored architecture for complex systems with open systems engineering architecture developed by the Institute for Electrical and Electronics Engineers (IEEE). Our experience in using these two architectures in building a complex healthcare system is described in this paper. The work described shows that it is possible to combine these two architectural frameworks in describing the systems, operational, and technical views of a complex automation system. The advantage in combining the two architectural frameworks lies in the simplicity of implementation and ease of understanding of automation system architectural elements by medical professionals.

  5. Relating business intelligence and enterprise architecture - A method for combining operational data with architectural metadata

    NARCIS (Netherlands)

    Veneberg, R.K.M.; Iacob, Maria Eugenia; van Sinderen, Marten J.; Bodenstaff, L.

    Combining enterprise architecture and operational data is complex (especially when considering the actual ‘matching’ of data with enterprise architecture elements), and little has been written on how to do this. In this paper we aim to fill this gap, and propose a method to combine operational data

  6. Change Impact Analysis of Crosscutting in Software Architectural Design

    NARCIS (Netherlands)

    van den Berg, Klaas

    2006-01-01

    Software architectures should be amenable to changes in user requirements and implementation technology. The analysis of the impact of these changes can be based on traceability of architectural design elements. Design elements have dependencies with other software artifacts but also evolve in time.

  7. A Mashup of Techniques to Create Reference Architectures

    Science.gov (United States)

    2012-05-01

    2012 Carnegie Mellon University A Mashup of Techniques to Create Reference Architectures Software Engineering Institute Carnegie Mellon...SUBTITLE A Mashup of Techniques to Create Reference Architectures 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S) 5d...reference architectures. We have developed a mashup of existing techniques that supports an architecture team in organizing the inputs required to

  8. Architectural Survey of Ohio Army National Guard Properties: Volume 1

    Science.gov (United States)

    2015-12-01

    diverse as community planning, engineering, architecture , and landscape architecture . Design includes such elements as organization of space...ER D C/ CE RL T R- 15 -3 8, V ol . I Architectural Survey of Ohio Army National Guard Properties: Volume I Co ns tr uc tio n En gi ne... Architectural Survey of Ohio Army National Guard Properties: Volume I Sunny E. Adams and Adam D. Smith Construction Engineering Research Laboratory U.S

  9. Effects of visual skills training, vision coaching and sports vision ...

    African Journals Online (AJOL)

    The purpose of this study was to determine the effectiveness of three different approaches to improving sports performance through improvements in “sports vision:” (1) a visual skills training programme, (2) traditional vision coaching sessions, and (3) a multi-disciplinary approach identified as sports vision dynamics.

  10. Field of Vision - Vehicles

    Science.gov (United States)

    2017-05-11

    observer to the ground for a 95th percentile male and a 5th percentile female . The dimensions of the vehicle should also be taken. 4. TEST...field of vision Gd ground distance MIL-STD Military Standard SAE Society of Automotive Engineers Sd stadia rod distance from the center of the...

  11. Motion Control with Vision

    NARCIS (Netherlands)

    Ir Dick van Schenk Brill; Ir Peter Boots

    2001-01-01

    This paper describes the work that is done by a group of I3 students at Philips CFT in Eindhoven, Netherlands. I3 is an initiative of Fontys University of Professional Education also located in Eindhoven. The work focuses on the use of computer vision in motion control. Experiments are done with

  12. Vision: The Leadership Difference.

    Science.gov (United States)

    Browne, Elise R.

    1986-01-01

    The author states that all types of leaders share four qualities: (1) intensity of vision, (2) ability to communicate agenda, (3) conviction in their beliefs, and (4) positive self-regard. She interviews Warren Bennis, an author on this subject, about the differences between business and volunteer leaders. (CH)

  13. Naval Aviation Vision

    Science.gov (United States)

    2012-01-01

    modeling and simulation, distributed testing, and ground testing. The fully instrumented and integrated Atlantic Test Range supports cradle -to-grave...be taking “ cats ” and “traps” for many years to come. Naval aviatioN visioN • JaNuary 2012109 Sergeant Jesus J. Castro Title: KC-130J Super Hercules

  14. A Colour Vision Experiment.

    Science.gov (United States)

    Lovett, David; Hore, Kevin

    1991-01-01

    The model for color vision put forward by Edwin Land is explained. The aspects of the theory that can be demonstrated within the classroom are described. A random arrangement of straight-edged colored areas mounted on a screen, called a Mondrian, projectors, and a computer are used to calculate reflectance. (KR)

  15. A shared vision.

    Science.gov (United States)

    Hogan, Brigid

    2007-12-01

    One of today's most powerful technologies in biomedical research--the creation of mutant mice by gene targeting in embryonic stem (ES) cells--was finally celebrated in this year's Nobel Prize in Medicine. The history of how ES cells were first discovered and genetically manipulated highlights the importance of collaboration among scientists from different backgrounds with a shared vision.

  16. Network Science Experimentation Vision

    Science.gov (United States)

    2015-09-01

    capabilities and performance of a heterogeneous collection of interdependent networks . This report outlines and discusses an experimentation vision that...has been shown to depend upon the capabilities and performance of a heterogeneous collection of interdependent networks . Such a collection of networks ...well as tactical military networks . In particular, wireless tactical networks can be simulated with high fidelity, using off the shelf simulation

  17. Direct vision internal urethrotomy

    DEFF Research Database (Denmark)

    Jakobsen, H; Willumsen, H; Søndergaard Jensen, L

    1984-01-01

    During a five-year period, direct vision internal urethrotomy was used for the treatment of urethral strictures in 34 men. After the primary operation the patients were followed for an average period of 29 months (range 3-73 months). During this period 53% of the patients were found to have one...

  18. The Photodynamics of Vision

    Indian Academy of Sciences (India)

    rruion is one of our primary senses. It is the ability to identify, process and interpret what is seen by the eye. It is a powerful mechanism for parallel processing of information received at the speed of light from near and remote scenes. The volume of information received by vision is certainly more than that re- ceived by our ...

  19. MARR: active vision model

    Science.gov (United States)

    Podladchikova, Lubov N.; Gusakova, Valentina I.; Shaposhnikov, Dmitry G.; Faure, Alain; Golovan, Alexander V.; Shevtsova, Natalia A.

    1997-09-01

    Earlier, the biologically plausible active vision, model for multiresolutional attentional representation and recognition (MARR) has been developed. The model is based on the scanpath theory of Noton and Stark and provides invariant recognition of gray-level images. In the present paper, the algorithm of automatic image viewing trajectory formation in the MARR model, the results of psychophysical experiments, and possible applications of the model are considered. Algorithm of automatic image viewing trajectory formation is based on imitation of the scanpath formed by operator. Several propositions about possible mechanisms for a consecutive selection of fixation points in human visual perception inspired by computer simulation results and known psychophysical data have been tested and confirmed in our psychophysical experiments. In particular, we have found that gaze switch may be directed (1) to a peripheral part of the vision field which contains an edge oriented orthogonally to the edge in the point of fixation, and (2) to a peripheral part of the vision field containing crossing edges. Our experimental results have been used to optimize automatic algorithm of image viewing in the MARR model. The modified model demonstrates an ability to recognize complex real world images invariantly with respect to scale, shift, rotation, illumination conditions, and, in part, to point of view and can be used to solve some robot vision tasks.

  20. Visions That Blind.

    Science.gov (United States)

    Fullan, Michael G.

    1992-01-01

    Overattachment to particular innovations or overreliance on a charismatic leader can restrict consideration of alternatives and produce short-term gains or superficial solutions. To encourage lasting school improvement, principals should build collaborative cultures instead of imposing their own visions or change agendas. A sidebar illustrates a…

  1. Lighting For Color Vision

    Science.gov (United States)

    Worthey, James A.

    1988-02-01

    Some results concerning lighting for human color vision can be generalized to robot color vision. These results depend mainly on the spectral sensitivities of the color channels, and their interaction with the spectral power distribution of the light. In humans, the spectral sensitivities of the R and G receptors show a large overlap, while that of the B receptors overlaps little with the other two. A color vision model that proves useful for lighting work---and which also models many features of human vision---is one in which the "opponent color" signals are T = R - G, and D = B - R. That is, a "red minus green" signal comes from the receptors with greatest spectral overlap, while a "blue minus yellow" signal comes from the two with the least overlap. Using this model, we find that many common light sources attenuate red-green contrasts, relative to daylight, while special lights can enhance red-green contrast slightly. When lighting changes cannot be avoided, the eye has some ability to compensate for them. In most models of "color constancy," only the light's color guides the eye's adjustment, so a lighting-induced loss of color contrast is not counteracted. Also, no constancy mechanism can overcome metamerism---the effect of unseen spectral differences between objects. However, we can calculate the extent to which a particular lighting change will reveal metamerism. I am not necessarily arguing for opponent processing within robots, but only presenting results based on opponent calculations.

  2. Information architecture for building digital library | Obuh ...

    African Journals Online (AJOL)

    The paper provided an overview of constituent elements of a digital library and explained the underlying information architecture and building blocks for a digital library. It specifically proffered meaning to the various elements or constituents of a digital library system. The paper took a look at the structure of information as a ...

  3. What is vision Hampton Roads?

    Science.gov (United States)

    2010-01-01

    What is Vision Hampton Roads? : Vision Hampton Roads is... : A regionwide economic development strategy based on the collective strengths of all : localities of Hampton Roads, created with the input of business, academia, nonprofits, : government,...

  4. Object tracking with stereo vision

    Science.gov (United States)

    Huber, Eric

    1994-01-01

    A real-time active stereo vision system incorporating gaze control and task directed vision is described. Emphasis is placed on object tracking and object size and shape determination. Techniques include motion-centroid tracking, depth tracking, and contour tracking.

  5. When someone has low vision

    Directory of Open Access Journals (Sweden)

    Clare Gilbert

    2012-01-01

    Full Text Available As clinicians, being faced with a patient whose vision we cannot improve any further can make us feel like a failure. However, there are many ways to help such a person with low vision.

  6. Intelligent Elements for ISHM

    Science.gov (United States)

    Schmalzel, John L.; Morris, Jon; Turowski, Mark; Figueroa, Fernando; Oostdyk, Rebecca

    2008-01-01

    There are a number of architecture models for implementing Integrated Systems Health Management (ISHM) capabilities. For example, approaches based on the OSA-CBM and OSA-EAI models, or specific architectures developed in response to local needs. NASA s John C. Stennis Space Center (SSC) has developed one such version of an extensible architecture in support of rocket engine testing that integrates a palette of functions in order to achieve an ISHM capability. Among the functional capabilities that are supported by the framework are: prognostic models, anomaly detection, a data base of supporting health information, root cause analysis, intelligent elements, and integrated awareness. This paper focuses on the role that intelligent elements can play in ISHM architectures. We define an intelligent element as a smart element with sufficient computing capacity to support anomaly detection or other algorithms in support of ISHM functions. A smart element has the capabilities of supporting networked implementations of IEEE 1451.x smart sensor and actuator protocols. The ISHM group at SSC has been actively developing intelligent elements in conjunction with several partners at other Centers, universities, and companies as part of our ISHM approach for better supporting rocket engine testing. We have developed several implementations. Among the key features for these intelligent sensors is support for IEEE 1451.1 and incorporation of a suite of algorithms for determination of sensor health. Regardless of the potential advantages that can be achieved using intelligent sensors, existing large-scale systems are still based on conventional sensors and data acquisition systems. In order to bring the benefits of intelligent sensors to these environments, we have also developed virtual implementations of intelligent sensors.

  7. Vision in water.

    Science.gov (United States)

    Atchison, David A; Valentine, Emma L; Gibson, Georgina; Thomas, Hannah R; Oh, Sera; Pyo, Young Ah; Lacherez, Philippe; Mathur, Ankit

    2013-09-06

    The purpose of this study is to determine visual performance in water, including the influence of pupil size. The water environment was simulated by placing goggles filled with saline in front of the eyes with apertures placed at the front of the goggles. Correction factors were determined for the different magnification under this condition in order to estimate vision in water. Experiments were conducted on letter visual acuity (seven participants), grating resolution (eight participants), and grating contrast sensitivity (one participant). For letter acuity, mean loss of vision in water, compared to corrected vision in air, varied between 1.1 log min of arc resolution (logMAR) for a 1 mm aperture to 2.2 logMAR for a 7 mm aperture. The vision in min of arc was described well by a linear relationship with pupil size. For grating acuity, mean loss varied between 1.1 logMAR for a 2 mm aperture to 1.2 logMAR for a 6 mm aperture. Contrast sensitivity for a 2 mm aperture deteriorated as spatial frequency increased with a 2 log unit loss by 3 c/°. Superimposed on this deterioration were depressions (notches) in sensitivity with the first three notches occurring at 0.45, 0.8, and 1.3 c/° with estimates for water of 0.39, 0.70, and 1.13 c/°. In conclusion, vision in water is poor. It becomes worse as pupil size increases, but the effects are much more marked for letter targets than for grating targets.

  8. Software Architecture Simulation

    OpenAIRE

    Mårtensson, Frans; Jönsson, Per

    2002-01-01

    A software architecture is one of the first steps towards a software system. A software architecture can be designed in different ways. During the design phase, it is important to select the most suitable design of the architecture, in order to create a good foundation for the system. The selection process is performed by evaluating architecture alternatives against each other. We investigate the use of continuous simulation of a software architecture as a support tool for architecture evalua...

  9. SUSTAINABLE ARCHITECTURE : WHAT ARCHITECTURE STUDENTS THINK

    OpenAIRE

    Satwiko, Prasasto

    2013-01-01

    Sustainable architecture has become a hot issue lately as the impacts of climate change become more intense. Architecture educations have responded by integrating knowledge of sustainable design in their curriculum. However, in the real life, new buildings keep coming with designs that completely ignore sustainable principles. This paper discusses the results of two national competitions on sustainable architecture targeted for architecture students (conducted in 2012 and 2013). The results a...

  10. Registration of Vision 30 Wheat

    Science.gov (United States)

    Vision 30’ (Reg. No. CV-1062, PI 661153) hard red winter (HRW) wheat (Triticum aestivum L.) was developed and tested as VA06HRW-49 and released by the Virginia Agricultural Experiment Station in March 2010. Vision 30 was derived from the cross 92PAN1#33/VA97W-414. Vision 30 is high yielding, awned,...

  11. Lightweight enterprise architectures

    CERN Document Server

    Theuerkorn, Fenix

    2004-01-01

    STATE OF ARCHITECTUREArchitectural ChaosRelation of Technology and Architecture The Many Faces of Architecture The Scope of Enterprise Architecture The Need for Enterprise ArchitectureThe History of Architecture The Current Environment Standardization Barriers The Need for Lightweight Architecture in the EnterpriseThe Cost of TechnologyThe Benefits of Enterprise Architecture The Domains of Architecture The Gap between Business and ITWhere Does LEA Fit? LEA's FrameworkFrameworks, Methodologies, and Approaches The Framework of LEATypes of Methodologies Types of ApproachesActual System Environmen

  12. Who - or What - "Wins" an Architectural Competition? A Model and a Case Study

    Directory of Open Access Journals (Sweden)

    Carlo Menon

    2014-03-01

    Full Text Available Architectural competitions are usually seen as a game with only one winner: the architect or team whose proposal is the most convincing. That is certainly a part of the reality, but we argue here for a broader and more nuanced model. In our vision, architectural competitions are a stage upon which a myriad of actors and elements play out a scenario that involves both competition and collaboration on several levels. Depending on the results, the "winners" may be multiple and of very different natures. We call this model "total competition", and are convinced that it has some application not only to competitions, but to architecture in general. After a brief explanation of this conception of things, we will look more closely at a recent Belgian competition (for a Juvenile Detention Center at Fraipont, Belgium, 2011, in order to elucidate its functioning in light of our model. Two findings from this examination are worth underlining. We notice, first of all, a particular and somewhat surprising role played by the nature of the program or brief, where its relative openness seems to have had paradoxical results. Second, we find in the winning entry a strong interaction between different "modes of representation" that seems to have been critical to its success. We conclude with some questions about the generalisability of the model.

  13. Islamization of Contemporary Architecture: Shifting the Paradigm of Islamic Architecture

    OpenAIRE

    Hamouche, Mustapha Ben-

    2010-01-01

    Islamic architecture is often thought as a history course and thus finds its material limited to the cataloguing and studying of legacies of successive empires or various geographic regions of the Islamic world. In practice, adherent professionals tend to reproduce high styles such as Umayyad, Abassid, Fatimid, Ottoman, etc., or recycle well known elements such as the minarets, courtyards, and mashrabiyyahs. This approach, endorsed by the present comprehensive Islamic revival, is believed to ...

  14. Project Integration Architecture

    Science.gov (United States)

    Jones, William Henry

    2008-01-01

    The Project Integration Architecture (PIA) is a distributed, object-oriented, conceptual, software framework for the generation, organization, publication, integration, and consumption of all information involved in any complex technological process in a manner that is intelligible to both computers and humans. In the development of PIA, it was recognized that in order to provide a single computational environment in which all information associated with any given complex technological process could be viewed, reviewed, manipulated, and shared, it is necessary to formulate all the elements of such a process on the most fundamental level. In this formulation, any such element is regarded as being composed of any or all of three parts: input information, some transformation of that input information, and some useful output information. Another fundamental principle of PIA is the assumption that no consumer of information, whether human or computer, can be assumed to have any useful foreknowledge of an element presented to it. Consequently, a PIA-compliant computing system is required to be ready to respond to any questions, posed by the consumer, concerning the nature of the proffered element. In colloquial terms, a PIA-compliant system must be prepared to provide all the information needed to place the element in context. To satisfy this requirement, PIA extends the previously established object-oriented- programming concept of self-revelation and applies it on a grand scale. To enable pervasive use of self-revelation, PIA exploits another previously established object-oriented-programming concept - that of semantic infusion through class derivation. By means of self-revelation and semantic infusion through class derivation, a consumer of information can inquire about the contents of all information entities (e.g., databases and software) and can interact appropriately with those entities. Other key features of PIA are listed.

  15. Computing element evolution towards Exascale and its impact on legacy simulation codes

    Science.gov (United States)

    Colin de Verdière, Guillaume J. L.

    2015-12-01

    In the light of the current race towards the Exascale, this article highlights the main features of the forthcoming computing elements that will be at the core of next generations of supercomputers. The market analysis, underlying this work, shows that computers are facing a major evolution in terms of architecture. As a consequence, it is important to understand the impacts of those evolutions on legacy codes or programming methods. The problems of dissipated power and memory access are discussed and will lead to a vision of what should be an exascale system. To survive, programming languages had to respond to the hardware evolutions either by evolving or with the creation of new ones. From the previous elements, we elaborate why vectorization, multithreading, data locality awareness and hybrid programming will be the key to reach the exascale, implying that it is time to start rewriting codes.

  16. The application of diagrams in architectural design

    Directory of Open Access Journals (Sweden)

    Dulić Olivera

    2014-01-01

    Full Text Available Diagrams in architecture represent the visualization of the thinking process, or selective abstraction of concepts or ideas translated into the form of drawings. In addition, they provide insight into the way of thinking about and in architecture, thus creating a balance between the visual and the conceptual. The subject of research presented in this paper are diagrams as a specific kind of architectural representation, and possibilities and importance of their application in the design process. Diagrams are almost old as architecture itself, and they are an element of some of the most important studies of architecture during all periods of history - which results in a large number of different definitions of diagrams, but also very different conceptualizations of their features, functions and applications. The diagrams become part of contemporary architectural discourse during the eighties and nineties of the twentieth century, especially through the work of architects like Bernard Tschumi, Peter Eisenman, Rem Koolhaas, SANAA and others. The use of diagrams in the design process allows unification of some of the essential aspects of the profession: architectural representation and design process, as well as the question of the concept of architectural and urban design at a time of rapid changes at all levels of contemporary society. The aim of the research is the analysis of the diagram as a specific medium for processing large amounts of information that the architect should consider and incorporate into the architectural work. On that basis, it is assumed that an architectural diagram allows the creator the identification and analysis of specific elements or ideas of physical form, thereby constantly maintaining concept of the integrity of the architectural work.

  17. Realisering af Vision 2020

    DEFF Research Database (Denmark)

    Bertelsen, Niels Haldor; Hansen, Ernst Jan de Place

    Repræsentanter for byggesektoren har på 11 dialogmøder drøftet Erhvervs- og Byggestyrelsens "Vision 2020 - Byggeri med mening". Drøftelserne førte til formulering af en lang række initiativforslag til realisering af visionen. Den mest centrale udfordring bliver at reducere fejl og mangler i...... byggeriet. Branchen lægger også vægt på, at styringen af Vision 2020s reaisering sker i byggesektoren. Initiativforslagene er i rapporten samlet under 3 hovedområder. Det første hovedområde lægger vægt på bygningerne, brugerbehov og det globale samfund. Det andet omhandler processen og leverancesystemet...

  18. SKYSCRAPER FUTURE VISIONS

    Directory of Open Access Journals (Sweden)

    Mohamad Kashef

    2008-07-01

    Full Text Available This paper addresses two skyscraper visions: Tokyo’s Sky City and the Shimizu Mega-City Pyramid. Prompted by the dearth of land and growing urban problems in Tokyo, these skyscraper visions offer alternative built forms with revolutionary technologies in building materials, construction methods, energy generation, and transportation systems. They are designed to be self-sufficient with homes, offices, outdoor green spaces, commercial establishments, restaurants, hospitals, trains, cars, and conceivably everything that hundreds of thousands of people need during the course of their lifetimes. The promise is that creating such vertical cities would relieve Tokyo from overcrowding and replace the urban concrete "jungle" on the ground with super towers straddling expansive green spaces or the water of Tokyo Bay.

  19. Vision Based Autonomous Robotic Control for Advanced Inspection and Repair

    Science.gov (United States)

    Wehner, Walter S.

    2014-01-01

    The advanced inspection system is an autonomous control and analysis system that improves the inspection and remediation operations for ground and surface systems. It uses optical imaging technology with intelligent computer vision algorithms to analyze physical features of the real-world environment to make decisions and learn from experience. The advanced inspection system plans to control a robotic manipulator arm, an unmanned ground vehicle and cameras remotely, automatically and autonomously. There are many computer vision, image processing and machine learning techniques available as open source for using vision as a sensory feedback in decision-making and autonomous robotic movement. My responsibilities for the advanced inspection system are to create a software architecture that integrates and provides a framework for all the different subsystem components; identify open-source algorithms and techniques; and integrate robot hardware.

  20. 1st International Conference on Computer Vision and Image Processing

    CERN Document Server

    Kumar, Sanjeev; Roy, Partha; Sen, Debashis

    2017-01-01

    This edited volume contains technical contributions in the field of computer vision and image processing presented at the First International Conference on Computer Vision and Image Processing (CVIP 2016). The contributions are thematically divided based on their relation to operations at the lower, middle and higher levels of vision systems, and their applications. The technical contributions in the areas of sensors, acquisition, visualization and enhancement are classified as related to low-level operations. They discuss various modern topics – reconfigurable image system architecture, Scheimpflug camera calibration, real-time autofocusing, climate visualization, tone mapping, super-resolution and image resizing. The technical contributions in the areas of segmentation and retrieval are classified as related to mid-level operations. They discuss some state-of-the-art techniques – non-rigid image registration, iterative image partitioning, egocentric object detection and video shot boundary detection. Th...

  1. 2015 Enterprise Strategic Vision

    Energy Technology Data Exchange (ETDEWEB)

    None

    2015-08-01

    This document aligns with the Department of Energy Strategic Plan for 2014-2018 and provides a framework for integrating our missions and direction for pursuing DOE’s strategic goals. The vision is a guide to advancing world-class science and engineering, supporting our people, modernizing our infrastructure, and developing a management culture that operates a safe and secure enterprise in an efficient manner.

  2. Research for VISION 2020

    Directory of Open Access Journals (Sweden)

    Peter Ackland

    2010-12-01

    Full Text Available We need good quality information to be able to carry out our eye care programmes in support of VISION 2020, to measure (and improve our performance, and to advocate for the resources and support we need to succeed. Much of this information can be collected, analysed, and used as part of our daily work, as many of the articles in this issue show.

  3. Low Vision Devices and Training

    Directory of Open Access Journals (Sweden)

    Imran Azam Butt

    2004-01-01

    Full Text Available Vision is the ability to see with a clear perception of detail, colour and contrast, and to distinguish objects visually. Like any other sense, vision tends to deteriorate or diminish naturally with age. In most cases, reduction in visual capability can be corrected with glasses, medicine or surgery. However, if the visual changes occur because of an incurable eye disease, condition or injury, vision loss can be permanent. Many people around the world with permanent visual impairment have some residual vision which can be used with the help of low vision services, materials and devices. This paper describes different options for the enhancement of residual vision including optical and non-optical devices and providing training for the low vision client.

  4. Surface and Form in Contemporary Architecture

    Directory of Open Access Journals (Sweden)

    Algimantas M. Mačiulis

    2012-05-01

    Full Text Available Architectural form in contemporary architecture gains more and more independence and visual difference from the tectonic structure of the building. Many researchers of contemporary architecture separate a building’s “skin” from its carcass. Thus a new element is distinguished – the coat of the building. Such autonomy of the surface makes a presumption that there is a certain separation between structural and non-structural elements, between the frame and the envelope. As soon as the building’s “skin” is disembodied from its structure, its function becomes similar to that of a curtain or dress. The article examines the influence of autonomous surfaces on the architectural form, identifies the most typical features and expressions of the building’s skin and provides the charactersitic contemporaty examples.Article in Lithuanian

  5. Architecture as Design Study.

    Science.gov (United States)

    Kauppinen, Heta

    1989-01-01

    Explores the use of analogies in architectural design, the importance of Gestalt theory and aesthetic cannons in understanding and being sensitive to architecture. Emphasizes the variation between public and professional appreciation of architecture. Notes that an understanding of architectural process enables students to improve the aesthetic…

  6. Fragments of Architecture

    DEFF Research Database (Denmark)

    Bang, Jacob Sebastian

    2016-01-01

    Topic 3: “Case studies dealing with the artistic and architectural work of architects worldwide, and the ties between specific artistic and architectural projects, methodologies and products”......Topic 3: “Case studies dealing with the artistic and architectural work of architects worldwide, and the ties between specific artistic and architectural projects, methodologies and products”...

  7. Future city architecture for optimal living

    CERN Document Server

    Pardalos, Panos

    2015-01-01

      This book offers a wealth of interdisciplinary approaches to urbanization strategies in architecture centered on growing concerns about the future of cities and their impacts on essential elements of architectural optimization, livability, energy consumption and sustainability. It portrays the urban condition in architectural terms, as well as the living condition in human terms, both of which can be optimized by mathematical modeling as well as mathematical calculation and assessment.   Special features include:   ·        new research on the construction of future cities and smart cities   ·        discussions of sustainability and new technologies designed to advance ideas to future city developments   Graduate students and researchers in architecture, engineering, mathematical modeling, and building physics will be engaged by the contributions written by eminent international experts from a variety of disciplines including architecture, engineering, modeling, optimization, and relat...

  8. PLM support to architecture based development

    DEFF Research Database (Denmark)

    Bruun, Hans Peter Lomholt

    languages are, in architecture design, seen as key means for supporting designers from different domains and with different backgrounds, in accessing the structures of architectures and their behavioural effects. This PhD project focuses on prescribing how to model structural elements and address......Designers doing product architecture based development look to convert desired behaviour to solutions for a portfolio of products, and through modularisation pursue commonality among different variants without increasing the internal task proportional to handling variety. To develop product...... architectures for a portfolio of products that support the right balance between commonality and variety is today a foremost part of most large companies’ development operations. A challenge is that product architectures are influencing external and internal performance of markets, production, technology...

  9. Assessment of Alternative Europa Mission Architectures

    Science.gov (United States)

    Langmaier, Jerry; Elliott, John; Clark, Karla; Pappalardo, Robert; Reh, Kim; Spilker, Tom

    2008-01-01

    The purpose of this study was to assess the science merit, technical risk and qualitative assessment of relative cost of alternative architectural implementations as applied to a first dedicated mission to Europa. The objective was accomplished through an examination of mission concepts resulting from previous and ongoing studies. Key architectural elements that were considered include moon orbiters, flybys (single flybys like New Horizons and multiple flybys similar to the ongoing Jupiter System Observer study), sample return and in situ landers and penetrators.

  10. Space Mobile Network: A Near Earth Communication and Navigation Architecture

    Science.gov (United States)

    Israel, Dave J.; Heckler, Greg; Menrad, Robert J.

    2016-01-01

    This paper describes a Space Mobile Network architecture, the result of a recently completed NASA study exploring architectural concepts to produce a vision for the future Near Earth communications and navigation systems. The Space Mobile Network (SMN) incorporates technologies, such as Disruption Tolerant Networking (DTN) and optical communications, and new operations concepts, such as User Initiated Services, to provide user services analogous to a terrestrial smartphone user. The paper will describe the SMN Architecture, envisioned future operations concepts, opportunities for industry and international collaboration and interoperability, and technology development areas and goals.

  11. A concrete example of a Personal Network architecture

    NARCIS (Netherlands)

    Hartog, F.T.H. den; Peeters, M.E.

    2006-01-01

    A Personal Network (PN) is created when the various private networks of a single user are always seamlessly interconnected, despite the mobility of the user. To realize this vision we have designed an architecture of a simple, concrete example of such a PN. It consists of just a home network and a

  12. Conveying Architectural Form and Space with Virtual Reality

    DEFF Research Database (Denmark)

    Kreutzberg, Anette

    2015-01-01

    The purpose of this study was to explore the user experience of non-specialists viewing and navigating in an architectural native (Revit) BIM model in Virtual Reality (VR) with a head mounted display (HMD). The perceived sense of presence as well as the quality of vision and total VR experience...

  13. Focal and Ambient Processing of Built Environments: Intellectual and Atmospheric Experiences of Architecture.

    Science.gov (United States)

    Rooney, Kevin K; Condia, Robert J; Loschky, Lester C

    2017-01-01

    Neuroscience has well established that human vision divides into the central and peripheral fields of view. Central vision extends from the point of gaze (where we are looking) out to about 5° of visual angle (the width of one's fist at arm's length), while peripheral vision is the vast remainder of the visual field. These visual fields project to the parvo and magno ganglion cells, which process distinctly different types of information from the world around us and project that information to the ventral and dorsal visual streams, respectively. Building on the dorsal/ventral stream dichotomy, we can further distinguish between focal processing of central vision, and ambient processing of peripheral vision. Thus, our visual processing of and attention to objects and scenes depends on how and where these stimuli fall on the retina. The built environment is no exception to these dependencies, specifically in terms of how focal object perception and ambient spatial perception create different types of experiences we have with built environments. We argue that these foundational mechanisms of the eye and the visual stream are limiting parameters of architectural experience. We hypothesize that people experience architecture in two basic ways based on these visual limitations; by intellectually assessing architecture consciously through focal object processing and assessing architecture in terms of atmosphere through pre-conscious ambient spatial processing. Furthermore, these separate ways of processing architectural stimuli operate in parallel throughout the visual perceptual system. Thus, a more comprehensive understanding of architecture must take into account that built environments are stimuli that are treated differently by focal and ambient vision, which enable intellectual analysis of architectural experience versus the experience of architectural atmosphere, respectively. We offer this theoretical model to help advance a more precise understanding of the

  14. Creating product line architectures

    OpenAIRE

    Bayer, J.; Flege, O.; Gacek, C.

    2000-01-01

    The creation and validation of product line software architectures are inherently more complex than those of software architectures for single systems. This paper compares a process for creating and evaluating a traditional, one-of-a- kind software architecture with one for a reference software architecture. The comparison is done in the context of PuLSE-DSSA, a customizable process that integrates both product line architecture creation and evaluation.

  15. Chemistry of superheavy elements

    Energy Technology Data Exchange (ETDEWEB)

    Schaedel, M. [Japan Atomic Energy Agency, Tokai, Ibaraki (Japan). Advanced Science Research Center; GSI Helmholtz Center for Heavy Ion Research, Darmstadt (Germany)

    2012-07-01

    The chemistry of superheavy elements - or transactinides from their position in the Periodic Table - is summarized. After giving an overview over historical developments, nuclear aspects about synthesis of neutron-rich isotopes of these elements, produced in hot-fusion reactions, and their nuclear decay properties are briefly mentioned. Specific requirements to cope with the one-atom-at-a-time situation in automated chemical separations and recent developments in aqueous-phase and gas-phase chemistry are presented. Exciting, current developments, first applications, and future prospects of chemical separations behind physical recoil separators ('pre-separator') are discussed in detail. The status of our current knowledge about the chemistry of rutherfordium (Rf, element 104), dubnium (Db, element 105), seaborgium (Sg, element 106), bohrium (Bh, element 107), hassium (Hs, element 108), copernicium (Cn, element 112), and element 114 is discussed from an experimental point of view. Recent results are emphasized and compared with empirical extrapolations and with fully-relativistic theoretical calculations, especially also under the aspect of the architecture of the Periodic Table. (orig.)

  16. All-digital radar architecture

    Science.gov (United States)

    Molchanov, Pavlo A.

    2014-10-01

    All digital radar architecture requires exclude mechanical scan system. The phase antenna array is necessarily large because the array elements must be co-located with very precise dimensions and will need high accuracy phase processing system for aggregate and distribute T/R modules data to/from antenna elements. Even phase array cannot provide wide field of view. New nature inspired all digital radar architecture proposed. The fly's eye consists of multiple angularly spaced sensors giving the fly simultaneously thee wide-area visual coverage it needs to detect and avoid the threats around him. Fly eye radar antenna array consist multiple directional antennas loose distributed along perimeter of ground vehicle or aircraft and coupled with receiving/transmitting front end modules connected by digital interface to central processor. Non-steering antenna array allows creating all-digital radar with extreme flexible architecture. Fly eye radar architecture provides wide possibility of digital modulation and different waveform generation. Simultaneous correlation and integration of thousands signals per second from each point of surveillance area allows not only detecting of low level signals ((low profile targets), but help to recognize and classify signals (targets) by using diversity signals, polarization modulation and intelligent processing. Proposed all digital radar architecture with distributed directional antenna array can provide a 3D space vector to the jammer by verification direction of arrival for signals sources and as result jam/spoof protection not only for radar systems, but for communication systems and any navigation constellation system, for both encrypted or unencrypted signals, for not limited number or close positioned jammers.

  17. Wearable Improved Vision System for Color Vision Deficiency Correction

    Science.gov (United States)

    Riccio, Daniel; Di Perna, Luigi; Sanniti Di Baja, Gabriella; De Nino, Maurizio; Rossi, Settimio; Testa, Francesco; Simonelli, Francesca; Frucci, Maria

    2017-01-01

    Color vision deficiency (CVD) is an extremely frequent vision impairment that compromises the ability to recognize colors. In order to improve color vision in a subject with CVD, we designed and developed a wearable improved vision system based on an augmented reality device. The system was validated in a clinical pilot study on 24 subjects with CVD (18 males and 6 females, aged 37.4 ± 14.2 years). The primary outcome was the improvement in the Ishihara Vision Test score with the correction proposed by our system. The Ishihara test score significantly improved (\\documentclass[12pt]{minimal} \\usepackage{amsmath} \\usepackage{wasysym} \\usepackage{amsfonts} \\usepackage{amssymb} \\usepackage{amsbsy} \\usepackage{upgreek} \\usepackage{mathrsfs} \\setlength{\\oddsidemargin}{-69pt} \\begin{document} }{}$p = 0.03$ \\end{document}) from 5.8 ± 3.0 without correction to 14.8 ± 5.0 with correction. Almost all patients showed an improvement in color vision, as shown by the increased test scores. Moreover, with our system, 12 subjects (50%) passed the vision color test as normal vision subjects. The development and preliminary validation of the proposed platform confirm that a wearable augmented-reality device could be an effective aid to improve color vision in subjects with CVD. PMID:28507827

  18. Application of Astronomical Compositions in Small Architectural Forms

    Science.gov (United States)

    Haykazun, Ani

    2016-12-01

    The small architectural forms are an important part of the Armenian architecture. Their compositions are diverse including quadrihedral structures, cross-stones, monuments, gravestones, memorial stones, etc. From ancient times to the late middle ages, and up to themodern small architectural forms, there are many decorative elements of astronomical character. Among them, one can more often see stars, the sun, the moon, the sky, the planets, the sign of eternity and other symbolic decorative images, which play a major role in the formation of the artistic image of the architectural compositions. The analysis of application of astronomical compositions will help more comprehensively introduce the compositional peculiarities of the small architectural forms.

  19. Memories and Vision

    OpenAIRE

    Bates, Catherine

    2002-01-01

    For a sighted person, memory is strongly connected to vision and visual\\ud images. Even a memory triggered by a smell or sound tends to be a visual one.\\ud As a memory recedes over time, photographs can be used to refresh it,\\ud restructuring it in a particularly static, almost death-like way. A person who\\ud has died, for example, after time may be remembered more as their still visual\\ud image, captured in a photograph, than as the sum of their personality, actions,\\ud or essential human-ne...

  20. Beyond Strategic Vision

    CERN Document Server

    Cowley, Michael

    2012-01-01

    Hoshin is a system which was developed in Japan in the 1960's, and is a derivative of Management By Objectives (MBO). It is a Management System for determining the appropriate course of action for an organization, and effectively accomplishing the relevant actions and results. Having recognized the power of this system, Beyond Strategic Vision tailors the Hoshin system to fit the culture of North American and European organizations. It is a "how-to" guide to the Hoshin method for executives, managers, and any other professionals who must plan as part of their normal job. The management of an o

  1. Company Vision and Organizational Learning

    Directory of Open Access Journals (Sweden)

    Vojko Toman

    2015-11-01

    Full Text Available The effectiveness of a company is largely dependent on the company itself; it depends above all on its corporate governance, management, and implementation, as well as on decision-making processes and coordination. Many authors believe that organizational learning and knowledge are the most relevant aspects of company effectiveness. If a company wants to be effective it needs to create and realize its vision; to do this, it needs creativity, imagination, and knowledge, which can be obtained or enhanced through learning. This paper defines vision, learning, creativity and management and, above all, their relationships. The author argues that company vision influences the learning and knowledge of employees in the company through the vision’s content, through the vision-creating process, and through the vision enforcement process. Conversely, the influence of learning on company vision is explained. The paper is aimed at the use in the practice of companies and helps them to increase their effectiveness.

  2. Neuromathematics of vision

    CERN Document Server

    Sarti, Alessandro

    2014-01-01

    This book is devoted to the study of the functional architecture of the visual cortex. Its geometrical structure is the differential geometry of the connectivity between neural cells. This connectivity is building and  shaping the hidden brain structures underlying visual perception. The story of the problem runs over the last 30 years, since the discovery of Hubel and Wiesel of the modular structure of the primary visual cortex, and slowly cams towards a theoretical understanding of the experimental data on what we now know as functional architecture of the primary visual cortex. Experimental data comes from several domains:  neurophysiology, phenomenology of perception and neurocognitive imaging. Imaging techniques like functional MRI and diffusion tensor MRI allow to deepen the study of cortical structures.  Due to this variety of experimental data, neuromathematematics deals with modelling  both cortical structures and perceptual spaces. From the mathematical point of view, neuromathematical call for ...

  3. Control of multiple robots using vision sensors

    CERN Document Server

    Aranda, Miguel; Sagüés, Carlos

    2017-01-01

    This monograph introduces novel methods for the control and navigation of mobile robots using multiple-1-d-view models obtained from omni-directional cameras. This approach overcomes field-of-view and robustness limitations, simultaneously enhancing accuracy and simplifying application on real platforms. The authors also address coordinated motion tasks for multiple robots, exploring different system architectures, particularly the use of multiple aerial cameras in driving robot formations on the ground. Again, this has benefits of simplicity, scalability and flexibility. Coverage includes details of: a method for visual robot homing based on a memory of omni-directional images a novel vision-based pose stabilization methodology for non-holonomic ground robots based on sinusoidal-varying control inputs an algorithm to recover a generic motion between two 1-d views and which does not require a third view a novel multi-robot setup where multiple camera-carrying unmanned aerial vehicles are used to observe and c...

  4. Speculations on the representation of architecture in virtual reality

    DEFF Research Database (Denmark)

    Hermund, Anders; Klint, Lars; Bundgård, Ture Slot

    2017-01-01

    This paper discusses the present and future possibilities of representation models of architecture in new media such as virtual reality, seen in the broader context of tradition, perception, and neurology. Through comparative studies of real and virtual scenarios using eye tracking, the paper...... discusses if the constantly evolving toolset for architectural representation has in itself changed the core values of architecture, or if it is rather the level of skilful application of technology that can inflict on architecture and its quality. It is easy to contemplate virtual reality as an extension...... to the visual field of perception. However, this should not necessarily imply an acceptance of the dominance of vision over the other senses, and the much-criticized retinal architecture with its inherent loss of plasticity. Recent neurology studies indicate that 3D representation models in virtual reality...

  5. A taxonomy of Deep Convolutional Neural Nets for Computer Vision

    Directory of Open Access Journals (Sweden)

    Suraj eSrinivas

    2016-01-01

    Full Text Available Traditional architectures for solving computer vision problems and the degree of success they enjoyed have been heavily reliant on hand-crafted features. However, of late, deep learning techniques have offered a compelling alternative -- that of automatically learning problem-specific features. With this new paradigm, every problem in computer vision is now being re-examined from a deep learning perspective. Therefore, it has become important to understand what kind of deep networks are suitable for a given problem. Although general surveys of this fast-moving paradigm (i.e. deep-networks exist, a survey specific to computer vision is missing. We specifically consider one form of deep networks widely used in computer vision - convolutional neural networks (CNNs. We start with AlexNet'' as our base CNN and then examine the broad variations proposed over time to suit different applications. We hope that our recipe-style survey will serve as a guide, particularly for novice practitioners intending to use deep-learning techniques for computer vision.

  6. Development of image processing LSI "SuperVchip" for real-time vision systems

    Science.gov (United States)

    Muramatsu, Shoji; Kobayashi, Yoshiki; Otsuka, Yasuo; Shojima, Hiroshi; Tsutsumi, Takayuki; Imai, Toshihiko; Yamada, Shigeyoshi

    2002-03-01

    A new image processing LSI SuperVchip with high-performance computing power has been developed. The SuperVchip has powerful capability for vision systems as follows: 1. General image processing by 3x3, 5x5, 7x7 kernel for high speed filtering function. 2. 16-parallel gray search engine units for robust template matching. 3. 49 block matching Pes to calculate the summation of the absolution difference in parallel for stereo vision function. 4. A color extraction unit for color object recognition. The SuperVchip also has peripheral function of vision systems, such as video interface, PCI extended interface, RISC engine interface and image memory controller on a chip. Therefore, small and high performance vision systems are realized via SuperVchip. In this paper, the above specific circuits are presented, and an architecture of a vision device equipped with SuperVchip and its performance are also described.

  7. The UAS control segment architecture: an overview

    Science.gov (United States)

    Gregory, Douglas A.; Batavia, Parag; Coats, Mark; Allport, Chris; Jennings, Ann; Ernst, Richard

    2013-05-01

    The Under Secretary of Defense (Acquisition, Technology and Logistics) directed the Services in 2009 to jointly develop and demonstrate a common architecture for command and control of Department of Defense (DoD) Unmanned Aircraft Systems (UAS) Groups 2 through 5. The UAS Control Segment (UCS) Architecture is an architecture framework for specifying and designing the softwareintensive capabilities of current and emerging UCS systems in the DoD inventory. The UCS Architecture is based on Service Oriented Architecture (SOA) principles that will be adopted by each of the Services as a common basis for acquiring, integrating, and extending the capabilities of the UAS Control Segment. The UAS Task Force established the UCS Working Group to develop and support the UCS Architecture. The Working Group currently has over three hundred members, and is open to qualified representatives from DoD-approved defense contractors, academia, and the Government. The UCS Architecture is currently at Release 2.2, with Release 3.0 planned for July 2013. This paper discusses the current and planned elements of the UCS Architecture, and related activities of the UCS Community of Interest.

  8. ISLAMIZATION OF CONTEMPORARY ARCHITECTURE: SHIFTING THE PARADIGM OF ISLAMIC ARCHITECTURE

    Directory of Open Access Journals (Sweden)

    Mustapha Ben- Hamouche

    2012-03-01

    Full Text Available Islamic architecture is often thought as a history course and thus finds its material limited to the cataloguing and studying of legacies of successive empires or various geographic regions of the Islamic world. In practice, adherent professionals tend to reproduce high styles such as Umayyad, Abassid, Fatimid, Ottoman, etc., or recycle well known elements such as the minarets, courtyards, and mashrabiyyahs. This approach, endorsed by the present comprehensive Islamic revival, is believed to be the way to defend and revitalize the identity of Muslim societies that was initially affected by colonization and now is being offended by globalization. However, this approach often clashes with the contemporary trends in architecture that do not necessarily oppose the essence of Islamic architecture. Furthermore, it sometimes lead to an erroneous belief that consists of relating a priori forms to Islam and that clashes with the timeless and universal character of the Islamic religion. The key question to be asked then is, beyond this historicist view, what would be an “Islamic architec-ture” of nowadays that originates from the essence of Islam and that responds to contemporary conditions, needs, aspirations of present Muslim societies and individuals. To what extends can Islamic architecture bene-fits from modern progress and contemporary thought in resurrecting itself without loosing its essence. The hypothesis of the study is that, just as early Muslim architecture started from the adoption, use and re-use of early pre-Islamic architectures before reaching originality, this process, called Islamization, could also take place nowadays with the contemporary thought that is mostly developed in Western and non-Islamic environ-ments. Mechanisms in Islam that allowed the “absorption” of pre-existing civilizations should thus structure the islamization approach and serve the scholars and professionals to reach the new Islamic architecture. The

  9. Energy visions 2050

    Energy Technology Data Exchange (ETDEWEB)

    2009-07-01

    Energy Visions 2050 considers measures for addressing the enormous future challenges facing the energy sector, focusing on technological and techno-economic perspectives. The analysis of the development of technologies covers the whole energy chain, highlighting the necessity of efficient energy use in all activities of societies. The contents include a discussion on potential future low-emission and renewable energy conversion technologies, as well as new technology solutions in the industrial, building and transport sectors and in energy supply systems. The move towards zero-emission energy systems has consequenses for energy supply, and makes the analysis of energy resources presented in the book all the more valuable. Scenarios of alternative development paths to 2050 at the global, European and Finnish levels are presented, assuming different technological development options, economic growth rates, degrees of globalisation and information flows. The results show interesting differences between the scenarios with regard to energy production and use, mitigation of greenhouse gas emissions, and global warming. Energy Visions 2050 in mainly intended for those who have a fairly good knowledge of the energy sector and energy technologies, e.g. energy policymakers, experts responsible for energy-related issues in industry, and investors in energy technologies. The topics are approached from a global perspective. In some technological details, however, Finnish technology and Finland's technological achievements are highlighted. The topics and viewpoints of the book will certainly be of interest to international readers as well

  10. Coherent laser vision system

    Energy Technology Data Exchange (ETDEWEB)

    Sebastion, R.L. [Coleman Research Corp., Springfield, VA (United States)

    1995-10-01

    The Coherent Laser Vision System (CLVS) is being developed to provide precision real-time 3D world views to support site characterization and robotic operations and during facilities Decontamination and Decommissioning. Autonomous or semiautonomous robotic operations requires an accurate, up-to-date 3D world view. Existing technologies for real-time 3D imaging, such as AM laser radar, have limited accuracy at significant ranges and have variability in range estimates caused by lighting or surface shading. Recent advances in fiber optic component technology and digital processing components have enabled the development of a new 3D vision system based upon a fiber optic FMCW coherent laser radar. The approach includes a compact scanner with no-moving parts capable of randomly addressing all pixels. The system maintains the immunity to lighting and surface shading conditions which is characteristic to coherent laser radar. The random pixel addressability allows concentration of scanning and processing on the active areas of a scene, as is done by the human eye-brain system.

  11. A Query Driven Computer Vision System: A Paradigm for Hierarchical Control Strategies during the Recognition Process of Three Dimensional Visually Perceived Objects.

    Science.gov (United States)

    1983-04-01

    modelling is top-down, reflecting the user’s interest in the scene. The Scene Model represents both the objects in the image and primitive spatial relations between these objects. Keywords: Computer vision , Computer architecture. (Author)

  12. Computer vision cracks the leaf code.

    Science.gov (United States)

    Wilf, Peter; Zhang, Shengping; Chikkerur, Sharat; Little, Stefan A; Wing, Scott L; Serre, Thomas

    2016-03-22

    Understanding the extremely variable, complex shape and venation characters of angiosperm leaves is one of the most challenging problems in botany. Machine learning offers opportunities to analyze large numbers of specimens, to discover novel leaf features of angiosperm clades that may have phylogenetic significance, and to use those characters to classify unknowns. Previous computer vision approaches have primarily focused on leaf identification at the species level. It remains an open question whether learning and classification are possible among major evolutionary groups such as families and orders, which usually contain hundreds to thousands of species each and exhibit many times the foliar variation of individual species. Here, we tested whether a computer vision algorithm could use a database of 7,597 leaf images from 2,001 genera to learn features of botanical families and orders, then classify novel images. The images are of cleared leaves, specimens that are chemically bleached, then stained to reveal venation. Machine learning was used to learn a codebook of visual elements representing leaf shape and venation patterns. The resulting automated system learned to classify images into families and orders with a success rate many times greater than chance. Of direct botanical interest, the responses of diagnostic features can be visualized on leaf images as heat maps, which are likely to prompt recognition and evolutionary interpretation of a wealth of novel morphological characters. With assistance from computer vision, leaves are poised to make numerous new contributions to systematic and paleobotanical studies.

  13. Benchmarking Neuromorphic Vision: Lessons Learnt from Computer Vision

    Directory of Open Access Journals (Sweden)

    Cheston eTan

    2015-10-01

    Full Text Available Neuromorphic Vision sensors have improved greatly since the first silicon retina was presented almost three decades ago. They have recently matured to the point where they are commercially available and can be operated by laymen. However, despite improved availability of sensors, there remains a lack of good datasets, and algorithms for processing spike-based visual data are still in their infancy. On the other hand, frame-based computer vision algorithms are far more mature, thanks in part to widely accepted datasets which allow direct comparison between algorithms and encourage competition. We are presented with a unique opportunity to shape the development of Neuromorphic Vision benchmarks and challenges by leveraging what has been learnt from the use of datasets in frame-based computer vision. Taking advantage of this opportunity, in this paper we review the role that benchmarks and challenges have played in the advancement of frame-based computer vision, and suggest guidelines for the creation of Neuromorphic Vision benchmarks and challenges. We also discuss the unique challenges faced when benchmarking Neuromorphic Vision algorithms, particularly when attempting to provide direct comparison with frame-based computer vision.

  14. Near vision spectacle coverage and barriers to near vision ...

    African Journals Online (AJOL)

    Purpose: To determine the near vision spectacle coverage and barriers to obtaining near vision correction among adults aged 35 years and older in the Cape Coast Metropolis of Ghana. Methods: A population-based cross-sectional study design was adopted and 500 out of 576 participants aged 35 years and older were ...

  15. Near vision spectacle coverage and barriers to near vision ...

    African Journals Online (AJOL)

    Abstract: Purpose: To determine the near vision spectacle coverage and barriers to obtaining near vision correction among adults aged. 35 years and older in the Cape Coast Metropolis of Ghana. Methods: A population-based cross-sectional study design was adopted and 500 out of 576 participants aged 35 years and ...

  16. Benchmarking neuromorphic vision: lessons learnt from computer vision.

    Science.gov (United States)

    Tan, Cheston; Lallee, Stephane; Orchard, Garrick

    2015-01-01

    Neuromorphic Vision sensors have improved greatly since the first silicon retina was presented almost three decades ago. They have recently matured to the point where they are commercially available and can be operated by laymen. However, despite improved availability of sensors, there remains a lack of good datasets, while algorithms for processing spike-based visual data are still in their infancy. On the other hand, frame-based computer vision algorithms are far more mature, thanks in part to widely accepted datasets which allow direct comparison between algorithms and encourage competition. We are presented with a unique opportunity to shape the development of Neuromorphic Vision benchmarks and challenges by leveraging what has been learnt from the use of datasets in frame-based computer vision. Taking advantage of this opportunity, in this paper we review the role that benchmarks and challenges have played in the advancement of frame-based computer vision, and suggest guidelines for the creation of Neuromorphic Vision benchmarks and challenges. We also discuss the unique challenges faced when benchmarking Neuromorphic Vision algorithms, particularly when attempting to provide direct comparison with frame-based computer vision.

  17. Simply architecture or bioclimatic architecture?; Arquitectura bioclimatica o simplemente Arquitectura?

    Energy Technology Data Exchange (ETDEWEB)

    Rodriguez Torres, Juan Manuel [Universidad de Guanajuato (Mexico)

    2006-10-15

    The bioclimatic architecture is the one which profits from its position in the environment and its architectonic elements for the climate benefit. With the aim of reach the internal thermal comfort without using mechanical systems. This article states the story about this singular kind of architecture during centuries. And also emphasizes the sunlight utilization, in order to achieve the desired thermal well-being in edifications. [Spanish] El tipo de arquitectura que toma ventaja de su disposicion en el entorno y sus elementos arquitectonicos para el aprovechamiento del clima, con el fin de conseguir el confort termico interior sin utilizar sistemas mecanicos, se denomina bioclimatica. En este articulo se habla de la historia de este tipo tan singular de arquitectura con el paso de los siglos, y tambien se hace hincapie acerca de la luz solar, como un medio muy eficiente a traves del cual las edificaciones pueden ser disenadas para lograr el bienestar termico deseado.

  18. Molecular basis for photoreceptor outer segment architecture.

    Science.gov (United States)

    Goldberg, Andrew F X; Moritz, Orson L; Williams, David S

    2016-11-01

    To serve vision, vertebrate rod and cone photoreceptors must detect photons, convert the light stimuli into cellular signals, and then convey the encoded information to downstream neurons. Rods and cones are sensory neurons that each rely on specialized ciliary organelles to detect light. These organelles, called outer segments, possess elaborate architectures that include many hundreds of light-sensitive membranous disks arrayed one atop another in precise register. These stacked disks capture light and initiate the chain of molecular and cellular events that underlie normal vision. Outer segment organization is challenged by an inherently dynamic nature; these organelles are subject to a renewal process that replaces a significant fraction of their disks (up to ∼10%) on a daily basis. In addition, a broad range of environmental and genetic insults can disrupt outer segment morphology to impair photoreceptor function and viability. In this chapter, we survey the major progress that has been made for understanding the molecular basis of outer segment architecture. We also discuss key aspects of organelle lipid and protein composition, and highlight distributions, interactions, and potential structural functions of key OS-resident molecules, including: kinesin-2, actin, RP1, prominin-1, protocadherin 21, peripherin-2/rds, rom-1, glutamic acid-rich proteins, and rhodopsin. Finally, we identify key knowledge gaps and challenges that remain for understanding how normal outer segment architecture is established and maintained. Copyright © 2016 Elsevier Ltd. All rights reserved.

  19. Modeling Architectural Patterns' Behavior Using Architectural Primitives

    NARCIS (Netherlands)

    Kamal, Ahmad Waqas; Avgeriou, Paris; Morrison, R; Balasubramaniam, D; Falkner, K

    2008-01-01

    Architectural patterns have an impact on both the structure and the behavior of a system at the architecture design level. However, it is challenging to model patterns' behavior in a systematic way because modeling languages do not provide the appropriate abstractions and because each pattern

  20. National Positioning, Navigation, and Timing Architecture Study

    Science.gov (United States)

    van Dyke, K.; Vicario, J.; Hothem, L.

    2007-12-01

    The purpose of the National Positioning, Navigation and Timing (PNT) Architecture effort is to help guide future PNT system-of-systems investment and implementation decisions. The Assistant Secretary of Defense for Networks and Information Integration and the Under Secretary of Transportation for Policy sponsored a National PNT Architecture study to provide more effective and efficient PNT capabilities focused on the 2025 timeframe and an evolutionary path for government provided systems and services. U.S. Space-Based PNT Policy states that the U.S. must continue to improve and maintain GPS, augmentations to GPS, and back-up capabilities to meet growing national, homeland, and economic security needs. PNT touches almost every aspect of people´s lives today. PNT is essential for Defense and Civilian applications ranging from the Department of Defense´s Joint network centric and precision operations to the transportation and telecommunications sectors, improving efficiency, increasing safety, and being more productive. Absence of an approved PNT architecture results in uncoordinated research efforts, lack of clear developmental paths, potentially wasteful procurements and inefficient deployment of PNT resources. The national PNT architecture effort evaluated alternative future mixes of global (space and non space-based) and regional PNT solutions, PNT augmentations, and autonomous PNT capabilities to address priorities identified in the DoD PNT Joint Capabilities Document (JCD) and civil equivalents. The path to achieving the Should-Be architecture is described by the National PNT Architecture's Guiding Principles, representing an overarching Vision of the US' role in PNT, an architectural Strategy to fulfill that Vision, and four Vectors which support the Strategy. The National PNT Architecture effort has developed nineteen recommendations. Five foundational recommendations are tied directly to the Strategy while the remaining fourteen individually support one of

  1. Space Internet Architectures and Technologies for NASA Enterprises

    Science.gov (United States)

    Bhasin, Kul; Hayden, Jeffrey L.

    2001-01-01

    NASA's future communications services will be supplied through a space communications network that mirrors the terrestrial Internet in its capabilities and flexibility. The notional requirements for future data gathering and distribution by this Space Internet have been gathered from NASA's Earth Science Enterprise (ESE), the Human Exploration and Development in Space (HEDS), and the Space Science Enterprise (SSE). This paper describes a communications infrastructure for the Space Internet, the architectures within the infrastructure, and the elements that make up the architectures. The architectures meet the requirements of the enterprises beyond 2010 with Internet 'compatible technologies and functionality. The elements of an architecture include the backbone, access, inter-spacecraft and proximity communication parts. From the architectures, technologies have been identified which have the most impact and are critical for the implementation of the architectures.

  2. Religious architecture: anthropological perspectives

    NARCIS (Netherlands)

    Verkaaik, O.

    2013-01-01

    Religious Architecture: Anthropological Perspectives develops an anthropological perspective on modern religious architecture, including mosques, churches and synagogues. Borrowing from a range of theoretical perspectives on space-making and material religion, this volume looks at how religious

  3. Rhein-Ruhr architecture

    DEFF Research Database (Denmark)

    2002-01-01

    katalog til udstillingen 'Rhein - Ruhr architecture' Meldahls smedie, 15. marts - 28. april 2002. 99 sider......katalog til udstillingen 'Rhein - Ruhr architecture' Meldahls smedie, 15. marts - 28. april 2002. 99 sider...

  4. The analysis of cultural architectural trends in Crisan locality

    Directory of Open Access Journals (Sweden)

    SELA Florentina

    2010-09-01

    Full Text Available The paper presents data about the identification and analyse of the traditional architectural elements in Crisan locality knowing that the tourism activity is in a continuous development. The field research (during November 2007 enabled us to develop a qualitative and quantitative analysis in terms of identification of traditional architecture elements, their conservation status, and frequency of traditional building materials use, decorative elements and specificcolors used in construction architecture. Further, based on collected data, was realized the chart - Distribution for TraditionalArchitecture Index (TAI on the distance from the center of Crisan locality, showing that in Crisan locality the houses were and are built without taking into account any rule, destroying thus traditional architecture.

  5. Bioclimatism in vernacular architecture

    OpenAIRE

    Coch Roura, Helena

    1998-01-01

    Any analysis of the role played by energy in architecture is faced with serious limitations due to the lack of studies in the architectural bibliography, especially studies of popular architecture. An awareness of these limitations will allow us to understand better why architects have paid little attention to the interaction of form and energy, and to the bioclimatic approach in contemporary architecture in general. The first limitation stems from the very essence of bioclimatic analysis; en...

  6. Controller Architectures for Switching

    DEFF Research Database (Denmark)

    Niemann, Hans Henrik; Poulsen, Niels Kjølstad

    2009-01-01

    This paper investigate different controller architectures in connection with controller switching. The controller switching is derived by using the Youla-Jabr-Bongiorno-Kucera (YJBK) parameterization. A number of different architectures for the implementation of the YJBK parameterization...... are described and applied in connection with controller switching. An architecture that does not include inversion of the coprime factors is introduced. This architecture will make controller switching particular simple....

  7. Understanding and applying machine vision

    CERN Document Server

    Zeuch, Nello

    2000-01-01

    A discussion of applications of machine vision technology in the semiconductor, electronic, automotive, wood, food, pharmaceutical, printing, and container industries. It describes systems that enable projects to move forward swiftly and efficiently, and focuses on the nuances of the engineering and system integration of machine vision technology.

  8. Geometric Modeling for Computer Vision

    Science.gov (United States)

    1974-10-01

    The main contribution of this thesis is the development of a three dimensional geometric modeling system for application to computer vision . In... computer vision geometric models provide a goal for descriptive image analysis, an origin for verification image synthesis, and a context for spatial

  9. An overview of computer vision

    Science.gov (United States)

    Gevarter, W. B.

    1982-01-01

    An overview of computer vision is provided. Image understanding and scene analysis are emphasized, and pertinent aspects of pattern recognition are treated. The basic approach to computer vision systems, the techniques utilized, applications, the current existing systems and state-of-the-art issues and research requirements, who is doing it and who is funding it, and future trends and expectations are reviewed.

  10. Loss of vision.

    Science.gov (United States)

    Lueck, Christian J

    2010-12-01

    Visual loss is not uncommon and many patients end up seeing neurologists because of it. There is a long list of possible causes but in most patients visual loss is associated with visual field loss. This means that for practical purposes the differential diagnosis can usually be narrowed down to a manageable shortlist by consideration of where in the visual pathway the lesion is likely to be, along with the time course of the visual loss. This article provides a practical approach to the diagnosis and appropriate investigation of such patients, dividing them into four groups: those in whom vision is lost transiently, acutely, subacutely (i.e., days to weeks) and over a longer time frame (months to years). In addition, there is a discussion of those patients in whom visual loss is not obviously accompanied by any visual field loss.

  11. Mali: Visions of War

    Directory of Open Access Journals (Sweden)

    Roland Marchal

    2013-06-01

    Full Text Available Political elites in Bamako articulate different understandings of the war in northern Mali, though share the same view on the restoration of Malian sovereignty. Those visions are deeply rooted in an assessment of the past failed peace agreements with Tuareg groups, a focus on social and ethnic differentiations that emphasize the role of Kidal and the will to avoid major reforms in dealing with key issues such as the efficiency of the political system, the role of Islam in the Malian polity and the complicated relations between Bamako and its neighbours. The status of AQIM in the current crisis, contrary to the international narrative, is downplayed while other armed groups, in particular the MNLA, are seen as the real, and, often, only threat.

  12. Business model driven service architecture design for enterprise application integration

    OpenAIRE

    Gacitua-Decar, Veronica; Pahl, Claus

    2008-01-01

    Increasingly, organisations are using a Service-Oriented Architecture (SOA) as an approach to Enterprise Application Integration (EAI), which is required for the automation of business processes. This paper presents an architecture development process which guides the transition from business models to a service-based software architecture. The process is supported by business reference models and patterns. Firstly, the business process models are enhanced with domain model elements, applicat...

  13. Diehard Buildings. Control Architecture -a Challenge for the Urban Warrior

    Science.gov (United States)

    2003-10-01

    architecture when planning urban activities? What aspects of control technology should the mili- tary adapt and incorporate for military purposes?1 During...high-value buildings, urban centers, industrial sites, and affluent residential areas. Diehard Buildings Control Architecture –a Challenge for the... Architecture -a Challenge for the Urban Warrior 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT NUMBER 6. AUTHOR(S) 5d. PROJECT NUMBER 5e

  14. The System of Systems Architecture Feasibility Assessment Model

    Science.gov (United States)

    2016-06-01

    structure in terms of elements and relationships from multiple perspectives. A standard trichotomy of systems architecture is functional, physical, and...Maier and Rechtin define a (systems) architecture as, “The structure —in terms of components, connections, and constraints—of a product, process, or...can develop that SoS. For collaborative SoS, however, one must place greater emphasis on the incentive structure as a function of the architecture . As

  15. Can You Hear Architecture

    DEFF Research Database (Denmark)

    Ryhl, Camilla

    2016-01-01

    design and architectural quality for people with a hearing disability and a newly conducted qualitative evaluation research in Denmark as well as architectural theories on multisensory aspects of architectural experiences, the paper uses examples of existing Nordic building cases to discuss the role...

  16. OS Friendly Microprocessor Architecture

    Science.gov (United States)

    2017-04-01

    Architecture Version 2 Permission Bit Cache Bank Architecture 28 5.7 Microkernel, OS, and Application Cache Banks Organization 29 5.8 Process Level Cache... architecture cache bank organization 5.8 Process Level Cache Bank Operations Figure 26 presents a simplified example of microkernel cache banks and cache...

  17. 2020 Vision Project Summary

    Energy Technology Data Exchange (ETDEWEB)

    Gordon, K.W.; Scott, K.P.

    2000-11-01

    Since the 2020 Vision project began in 1996, students from participating schools have completed and submitted a variety of scenarios describing potential world and regional conditions in the year 2020 and their possible effect on US national security. This report summarizes the students' views and describes trends observed over the course of the 2020 Vision project's five years. It also highlights the main organizational features of the project. An analysis of thematic trends among the scenarios showed interesting shifts in students' thinking, particularly in their views of computer technology, US relations with China, and globalization. In 1996, most students perceived computer technology as highly beneficial to society, but as the year 2000 approached, this technology was viewed with fear and suspicion, even personified as a malicious, uncontrollable being. Yet, after New Year's passed with little disruption, students generally again perceived computer technology as beneficial. Also in 1996, students tended to see US relations with China as potentially positive, with economic interaction proving favorable to both countries. By 2000, this view had transformed into a perception of China emerging as the US' main rival and ''enemy'' in the global geopolitical realm. Regarding globalization, students in the first two years of the project tended to perceive world events as dependent on US action. However, by the end of the project, they saw the US as having little control over world events and therefore, we Americans would need to cooperate and compromise with other nations in order to maintain our own well-being.

  18. Driver Vision Based Perception-Response Time Prediction and Assistance Model on Mountain Highway Curve.

    Science.gov (United States)

    Li, Yi; Chen, Yuren

    2016-12-30

    To make driving assistance system more humanized, this study focused on the prediction and assistance of drivers' perception-response time on mountain highway curves. Field tests were conducted to collect real-time driving data and driver vision information. A driver-vision lane model quantified curve elements in drivers' vision. A multinomial log-linear model was established to predict perception-response time with traffic/road environment information, driver-vision lane model, and mechanical status (last second). A corresponding assistance model showed a positive impact on drivers' perception-response times on mountain highway curves. Model results revealed that the driver-vision lane model and visual elements did have important influence on drivers' perception-response time. Compared with roadside passive road safety infrastructure, proper visual geometry design, timely visual guidance, and visual information integrality of a curve are significant factors for drivers' perception-response time.

  19. Computer vision for an autonomous mobile robot

    CSIR Research Space (South Africa)

    Withey, Daniel J

    2015-10-01

    Full Text Available Computer vision systems are essential for practical, autonomous, mobile robots – machines that employ artificial intelligence and control their own motion within an environment. As with biological systems, computer vision systems include the vision...

  20. Genetics Home Reference: color vision deficiency

    Science.gov (United States)

    ... These two forms of color vision deficiency disrupt color perception but do not affect the sharpness of vision ( ... Protan defect Florida State University: Human Vision and Color Perception KidsHealth from the Nemours Foundation MalaCards: color blindness ...

  1. HyperCell: A Bio-inspired Design Framework for Real-time Interactive Architectures

    Directory of Open Access Journals (Sweden)

    Jia-Rey Chang

    2018-01-01

    architectural design, and this focus has also been a major driver behind the application computational design in Architecture. Nonetheless, this research will interpret the term “Form” in architecture as a continual “information processor” rather than the result of information processing. In other words, “Form” should not be perceived only as an expressive appearance based computational outcome but rather as a real-time process of information processing, akin to organic “Formation”. Architecture embodying kinetic ability for adjusting or changing its shape with the ability to process the surroundings and feedback in accordance with its free will with an inherent interactive intelligent movement of a living body. Additionally, it is also crucial to address the question of whether computational technologies are being properly harnessed, if they are only used for form-generating purposes in architecture design, or should this be replaced with real-time information communication and control systems to produce interactive architectures, with embodied computation abilities?   “Embodiment” in the context of this research is embedded in Umberto Eco’s vision on Semiotics, theories underlying media studies in Marshall McLuhan’s “Body Extension” (McLuhan, 1964, the contemporary philosophical thought of “Body Without Organs” (Gilles Deleuze and Félix Guattari, 1983, the computational Logic of ‘Swarm Behavior’ and the philosophical notion of “Monadology” proposed by Gottfried Leibniz (Leibniz, 1714. Embodied computation and design are predominant today within the wearable computing and smart living domains, which combine Virtual and Real worlds. Technical progress and prowess in VR development also contribute to advancing 3D smart architectural design and display solutions. The proposed ‘Organic body-like architectural spaces’ emphasize upon the realization of a body-like interactive space. Developing Interactive Architecture will imply

  2. Architecture-Driven Requirements Engineering

    NARCIS (Netherlands)

    Engelsman, W.; Jonkers, Henk; Franken, H.M.; Franken, Henry M.; Iacob, Maria Eugenia; Proper, Erik; Harmsen, Frank; Dietz, Jan L.G.

    2009-01-01

    This paper presents an architecture driven requirements engineering method. We will demonstrate how to integrate requirements engineering in architecture design and we will demonstrate how to use enterprise architectures during solution realization projects. We will demonstrate how architecture can

  3. Vector Disparity Sensor with Vergence Control for Active Vision Systems

    Directory of Open Access Journals (Sweden)

    Eduardo Ros

    2012-02-01

    Full Text Available This paper presents an architecture for computing vector disparity for active vision systems as used on robotics applications. The control of the vergence angle of a binocular system allows us to efficiently explore dynamic environments, but requires a generalization of the disparity computation with respect to a static camera setup, where the disparity is strictly 1-D after the image rectification. The interaction between vision and motor control allows us to develop an active sensor that achieves high accuracy of the disparity computation around the fixation point, and fast reaction time for the vergence control. In this contribution, we address the development of a real-time architecture for vector disparity computation using an FPGA device. We implement the disparity unit and the control module for vergence, version, and tilt to determine the fixation point. In addition, two on-chip different alternatives for the vector disparity engines are discussed based on the luminance (gradient-based and phase information of the binocular images. The multiscale versions of these engines are able to estimate the vector disparity up to 32 fps on VGA resolution images with very good accuracy as shown using benchmark sequences with known ground-truth. The performances in terms of frame-rate, resource utilization, and accuracy of the presented approaches are discussed. On the basis of these results, our study indicates that the gradient-based approach leads to the best trade-off choice for the integration with the active vision system.

  4. An Open Specification for Space Project Mission Operations Control Architectures

    Science.gov (United States)

    Hooke, A.; Heuser, W. R.

    1995-01-01

    An 'open specification' for Space Project Mission Operations Control Architectures is under development in the Spacecraft Control Working Group of the American Institute for Aeronautics and Astro- nautics. This architecture identifies 5 basic elements incorporated in the design of similar operations systems: Data, System Management, Control Interface, Decision Support Engine, & Space Messaging Service.

  5. Architecture and Energy. Towards a broader Focus

    DEFF Research Database (Denmark)

    Lauring, Michael; Marsh, Rob

    organization of buildings setting the conditions for daylight and ventilation. A recent research project carried out by The Danish Building Research Institute, Aalborg University, by Aarhus School of Architecture and others aims to find ways to simultaneously optimize the architectural quality and the energy...... the paper demonstrates correlations between the dimensioning and organization of rooms, the amount and quality of daylight, of solar heat, the choice of materials and the inclusion of building integrated energy sources, all of which are key elements of both architecture and low energy strategies...... Architecture and Energy. Towards a broader focus. By Michael Lauring and Rob Marsh   In typical new Danish dwellings build according to the standards of the Building Regulations 2008 approximately 35% of the primary energy use is related to heat consumption divided into 23% room heating and 12...

  6. Generation of non-overlapping fiber architecture

    DEFF Research Database (Denmark)

    Chapelle, Lucie; Lévesque, M.; Brøndsted, Povl

    2015-01-01

    step toward the computation of their physical properties. In this work, a realistic 3D model is developed to describe the architecture of a complex fiber structure. The domain of application of the model could include natural fibers composites, wood fibers materials, papers, mineral and steel wools......Numerical models generating actual fiber architecture by including parameters such as the fiber geometry and arrangement are a powerful tool to explore the relation between the fiber architecture and mechanical properties. The generation of virtual architectures of fibrous materials is the first......: a repulsion force to suppress the overlap between two fibers and a bending and stretching force to ensure that the fiber structure is kept unchanged. The model can be used as the geometrical basis for further finite-element modelling....

  7. Impact of Gamification of Vision Tests on the User Experience.

    Science.gov (United States)

    Bodduluri, Lakshmi; Boon, Mei Ying; Ryan, Malcolm; Dain, Stephen J

    2017-08-01

    Gamification has been incorporated into vision tests and vision therapies in the expectation that it may increase the user experience and engagement with the task. The current study aimed to understand how gamification affects the user experience, specifically during the undertaking of psychophysical tasks designed to estimate vision thresholds (chromatic and achromatic contrast sensitivity). Three tablet computer-based games were developed with three levels of gaming elements. Game 1 was designed to be a simple clinical test (no gaming elements), game 2 was similar to game 1 but with added gaming elements (i.e., feedback, scores, and sounds), and game 3 was a complete game. Participants (N = 144, age: 9.9-42 years) played three games in random order. The user experience for each game was assessed using a Short Feedback Questionnaire. The median (interquartile range) fun level for the three games was 2.5 (1.6), 3.9 (1.7), and 2.5 (2.8), respectively. Overall, participants reported greater fun level and higher preparedness to play the game again for game 2 than games 1 and 3 (P users, without affecting engagement with the vision test.

  8. Architecture of absurd (forms, positions, apposition

    Directory of Open Access Journals (Sweden)

    Fedorov Viktor Vladimirovich

    2014-04-01

    Full Text Available In everyday life we constantly face absurd things, which seem to lack common sense. The notion of the absurd acts as: a an aesthetic category; b an element of logic; c a metaphysical phenomenon. The opportunity of its overcoming is achieved through the understanding of the situation, the faith in the existence of sense and hope for his understanding. The architecture of absurd should be considered as a loss of sense of a part of architectural landscape (urban environment. The ways of organization of the architecture of absurd: the exaggerated forms and proportions, the unnatural position and apposition of various objects. These are usually small-scale facilities that have local spatial and temporary value. There are no large absurd architectural spaces, as the natural architectural environment dampens the perturbation of sense-sphere. The architecture of absurd is considered «pathology» of the environment. «Nonsense» objects and hope (or even faith to detect sense generate a fruitful paradox of architecture of absurd presence in the world.

  9. Sensor Fusion - Sonar and Stereo Vision, Using Occupancy Grids and SIFT

    DEFF Research Database (Denmark)

    Plascencia, Alfredo; Bendtsen, Jan Dimon

    2006-01-01

    The main contribution of this paper is to present a sensor fusion approach to scene environment mapping as part of a SDF (Sensor Data Fusion) architecture. This approach involves combined sonar and stereo vision readings. Sonar readings are interpreted using probability density functions...

  10. Information Architecture: The Data Warehouse Foundation.

    Science.gov (United States)

    Thomas, Charles R.

    1997-01-01

    Colleges and universities are initiating data warehouse projects to provide integrated information for planning and reporting purposes. A survey of 40 institutions with active data warehouse projects reveals the kinds of tools, contents, data cycles, and access currently used. Essential elements of an integrated information architecture are…

  11. Architecture and the Crisis of Place

    OpenAIRE

    Norton, Derek Mason

    1994-01-01

    "In a world more and more consumed by the artificial realities of electronic technology, architecture serves not just as the physical construct embodying the essence of our time, but more importantly as an experience of elements of reality to which our responses, both physical and psychological, make us human." - Karsten Harries

  12. Orthogonal antenna architecture for MIMO handsets

    DEFF Research Database (Denmark)

    Tatomirescu, Alexandru; Alrabadi, Osama; Pedersen, Gert Frølund

    2012-01-01

    The paper presents a method for decorrelating the antenna elements of a MIMO system in a compact handheld terminal at low bands. The architecture of the antenna system induces orthogonal currents over the closely spaced antennas resulting in a correlation free system. Nevertheless, due to the small...

  13. Exporting Humanist Architecture

    DEFF Research Database (Denmark)

    Nielsen, Tom

    2016-01-01

    The article is a chapter in the catalogue for the Danish exhibition at the 2016 Architecture Biennale in Venice. The catalogue is conceived at an independent book exploring the theme Art of Many - The Right to Space. The chapter is an essay in this anthology tracing and discussing the different...... values and ethical stands involved in the export of Danish Architecture. Abstract: Danish architecture has, in a sense, been driven by an unwritten contract between the architects and the democratic state and its institutions. This contract may be viewed as an ethos – an architectural tradition...... with inherent aesthetic and moral values. Today, however, Danish architecture is also an export commodity. That raises questions, which should be debated as openly as possible. What does it mean for architecture and architects to practice in cultures and under political systems that do not use architecture...

  14. Brief daily binocular vision prevents monocular deprivation effects in visual cortex.

    Science.gov (United States)

    Schwarzkopf, D Samuel; Vorobyov, Vasily; Mitchell, Donald E; Sengpiel, Frank

    2007-01-01

    Even short periods of early monocular deprivation result in reduced cortical representation and visual acuity of the deprived eye. However, we have shown recently that the dramatic deprivation effects on vision can be prevented entirely if the animal receives a brief period of concordant binocular vision each day. We examine here the extent to which the cortical deprivation effects can be counteracted by daily periods of normal experience. Cats received variable daily regimens of monocular deprivation (by wearing a mask) and binocular vision. We subsequently assessed visual cortex function with optical imaging of intrinsic signals and visually evoked potential recordings. Regardless of the overall length of visual experience, daily binocular vision for as little as 30 min, but no less, allowed normal ocular dominance and visual responses to be maintained despite several times longer periods of deprivation. Thus, the absolute amount of daily binocular vision rather than its relative share of the daily exposure determined the outcome. When 30 min of binocular exposure was broken up into two 15-min blocks flanking the deprivation period, ocular dominance resembled that of animals with only 15 min of binocular vision, suggesting that binocular experience must be continuous to be most effective. Our results demonstrate that normal experience is clearly more efficacious in maintaining normal functional architecture of the visual cortex than abnormal experience is in altering it. The beneficial effects of very short periods of binocular vision may prevent any long-term effects (amblyopia) from brief periods of compromised vision through injury or infection during development.

  15. Deep hierarchies in the primate visual cortex: what can we learn for computer vision?

    Science.gov (United States)

    Krüger, Norbert; Janssen, Peter; Kalkan, Sinan; Lappe, Markus; Leonardis, Ales; Piater, Justus; Rodríguez-Sánchez, Antonio J; Wiskott, Laurenz

    2013-08-01

    Computational modeling of the primate visual system yields insights of potential relevance to some of the challenges that computer vision is facing, such as object recognition and categorization, motion detection and activity recognition, or vision-based navigation and manipulation. This paper reviews some functional principles and structures that are generally thought to underlie the primate visual cortex, and attempts to extract biological principles that could further advance computer vision research. Organized for a computer vision audience, we present functional principles of the processing hierarchies present in the primate visual system considering recent discoveries in neurophysiology. The hierarchical processing in the primate visual system is characterized by a sequence of different levels of processing (on the order of 10) that constitute a deep hierarchy in contrast to the flat vision architectures predominantly used in today's mainstream computer vision. We hope that the functional description of the deep hierarchies realized in the primate visual system provides valuable insights for the design of computer vision algorithms, fostering increasingly productive interaction between biological and computer vision research.

  16. Roadmap to the SRS computing architecture

    Energy Technology Data Exchange (ETDEWEB)

    Johnson, A.

    1994-07-05

    This document outlines the major steps that must be taken by the Savannah River Site (SRS) to migrate the SRS information technology (IT) environment to the new architecture described in the Savannah River Site Computing Architecture. This document proposes an IT environment that is {open_quotes}...standards-based, data-driven, and workstation-oriented, with larger systems being utilized for the delivery of needed information to users in a client-server relationship.{close_quotes} Achieving this vision will require many substantial changes in the computing applications, systems, and supporting infrastructure at the site. This document consists of a set of roadmaps which provide explanations of the necessary changes for IT at the site and describes the milestones that must be completed to finish the migration.

  17. A modular real-time vision system for humanoid robots

    Science.gov (United States)

    Trifan, Alina L.; Neves, António J. R.; Lau, Nuno; Cunha, Bernardo

    2012-01-01

    Robotic vision is nowadays one of the most challenging branches of robotics. In the case of a humanoid robot, a robust vision system has to provide an accurate representation of the surrounding world and to cope with all the constraints imposed by the hardware architecture and the locomotion of the robot. Usually humanoid robots have low computational capabilities that limit the complexity of the developed algorithms. Moreover, their vision system should perform in real time, therefore a compromise between complexity and processing times has to be found. This paper presents a reliable implementation of a modular vision system for a humanoid robot to be used in color-coded environments. From image acquisition, to camera calibration and object detection, the system that we propose integrates all the functionalities needed for a humanoid robot to accurately perform given tasks in color-coded environments. The main contributions of this paper are the implementation details that allow the use of the vision system in real-time, even with low processing capabilities, the innovative self-calibration algorithm for the most important parameters of the camera and its modularity that allows its use with different robotic platforms. Experimental results have been obtained with a NAO robot produced by Aldebaran, which is currently the robotic platform used in the RoboCup Standard Platform League, as well as with a humanoid build using the Bioloid Expert Kit from Robotis. As practical examples, our vision system can be efficiently used in real time for the detection of the objects of interest for a soccer playing robot (ball, field lines and goals) as well as for navigating through a maze with the help of color-coded clues. In the worst case scenario, all the objects of interest in a soccer game, using a NAO robot, with a single core 500Mhz processor, are detected in less than 30ms. Our vision system also includes an algorithm for self-calibration of the camera parameters as well

  18. Using Weightless Neural Networks for Vergence Control in an Artificial Vision System

    Directory of Open Access Journals (Sweden)

    Karin S. Komati

    2003-01-01

    Full Text Available This paper presents a methodology we have developed and used to implement an artificial binocular vision system capable of emulating the vergence of eye movements. This methodology involves using weightless neural networks (WNNs as building blocks of artificial vision systems. Using the proposed methodology, we have designed several architectures of WNN-based artificial vision systems, in which images captured by virtual cameras are used for controlling the position of the ‘foveae’ of these cameras (high-resolution region of the images captured. Our best architecture is able to control the foveae vergence movements with average error of only 3.58 image pixels, which is equivalent to an angular error of approximately 0.629°.

  19. Superconducting Bolometer Array Architectures

    Science.gov (United States)

    Benford, Dominic J.; Chervenak, James A.; Irwin, Kent D.; Moseley, S. H., Jr.; Shafer, Richard A.; Staguhn, Johannes G.; Wollack, Ed

    2003-02-01

    The next generation of far-infrared and submillimeter instruments require large arrays of detectors containing thousands of elements. These arrays will necessarily be multiplexed, and superconducting bolometer arrays are the most promising present prospect for these detectors. We discuss our current research into superconducting bolometer array technologies, which has recently resulted in the first multiplexed detections of submillimeter light and the first multiplexed astronomical observations. Prototype arrays containing 512 pixels are in production using the Pop-Up Detector (PUD) architecture, which can be extended easily to 1000 pixel arrays. Planar arrays of close-packed bolometers are being developed for the GBT and for future space missions. For certain applications, such as a slewed far-infrared sky survey, feedhorn-coupling of a large sparsely-filled array of bolometers is desirable, and is being developed using photolithographic feedhorn arrays. Individual detectors have achieved a Noise Equivalent Power (NEP) of ~10-17 W/√Hz at 300mK, but several orders of magnitude improvement are required and can be reached with existing technology. The testing of such ultralow-background detectors will prove difficult, as this requires optical loading of below 1fW. Antenna-coupled bolometer designs have advantages for large format array designs at low powers due to their mode selectivity. We also present a design and preliminary results for an enhanced-dynamic-range transition edge sensor suitable for broadband ultralow-background detectors.

  20. National Hydrogen Vision Meeting Proceedings

    Energy Technology Data Exchange (ETDEWEB)

    None

    2001-11-01

    This document provides presentations and summaries of the notes from the National Hydrogen Vision Meeting''s facilitated breakout sessions. The Vision Meeting, which took place November 15-16, 2001, kicked off the public-private partnership that will pave the way to a more secure and cleaner energy future for America. These proceedings were compiled into a formal report, A National Vision of America''s Transition to a Hydrogen Economy - To 2030 and Beyond, which is also available online.

  1. Surgical treatment of low vision.

    Science.gov (United States)

    Gorfinkel, John

    2006-06-01

    Recent advances in technology are driving a renewed search to find surgical solutions for low vision rehabilitation. The scope of surgery is now being pushed beyond the initial goal of repairing existing anatomical structures. Today, the goal for vision rehabilitation is no less than replacing damaged ocular tissues with artificial ones. Surgical management of low vision may be subdivided into two categories, those procedures aimed at restoring ultrastructural visual function and those aimed at enhancing visual acuity of the residual retina with various levels of magnification. This paper briefly reviews advances in ultrastructural restoration by repair and considers in more detail enhanced acuity through magnification or replacement.

  2. Preserving urban objects of historicaland architectural heritage

    Directory of Open Access Journals (Sweden)

    Bal'zannikova Ekaterina Mikhailovna

    2014-01-01

    structural elements, delivering building materials, preparing the construction site and the basic period when condemned structures are demolished, new design elements are formed and assembled, interior finishing work is performed and the object facade is restored. In contrast to it, our method includes additional periods and a performance list. In particular, it is proposed to carry out a research period prior to the preparatory period, and after the basic period there should be the ending period.Thus, during the research period it is necessary to study urban development features in architectural and town-planning environment, to identify the historical and architectural value of the object, to estimate its ramshackle state and whether it is habitable, to determine the relationship of the object with the architectural and aesthetic image of surrounding objects and to develop a conservation program; and during the ending period it is proposed to assess the historical and architectural significance of the reconstructed object in relation to the aesthetic and architectural image of the surrounding area. The proposed complex method will increase the attractiveness of a historical and architectural heritage object and its surrounding area for tourists and, consequently, raise the cultural level of the visitors. Furthermore, the method will ensure the construction of recreation zones, their more frequent usage and visiting surrounding objects of social infrastructure, because more opportunities for cultural and aesthetic pastime will be offered. The method will also provide a more reasonable and effective use of available funding due to the careful analysis and proper choice of the methods to preserve objects of historical and architectural heritage.

  3. Vision Therapy for Post-Concussion Vision Disorders.

    Science.gov (United States)

    Gallaway, Michael; Scheiman, Mitchell; Mitchell, G Lynn

    2017-01-01

    To determine the frequency and types of vision disorders associated with concussion, and to determine the success rate of vision therapy for these conditions in two private practice settings. All records over an 18-month period of patients referred for post-concussion vision problems were reviewed from two private practices. Diagnoses of vergence, accommodative, or eye movement disorders were based on pre-established, clinical criteria. Vision therapy was recommended based on clinical findings and symptoms. Two hundred eighteen patient records were found with a diagnosis of concussion. Fifty-six percent of the concussions were related to sports, 20% to automobile accidents, and 24% to school, work, or home-related incidents. The mean age was 20.5 years and 58% were female. Eighty-two percent of the patients had a diagnosis of an oculomotor problem [binocular problems (62%), accommodative problems (54%), eye movement problems (21%)]. The most prevalent diagnoses were convergence insufficiency (CI, 47%) and accommodative insufficiency (AI, 42%). Vision therapy was recommended for 80% of the patients. Forty-six per cent (80/175) either did not pursue treatment or did not complete treatment. Of the 54% (95/175) who completed therapy, 85% of patients with CI were successful and 15% were improved, and with AI, 33% were successful and 67% improved. Clinically and statistically significant changes were measured in symptoms, near point of convergence, positive fusional vergence, and accommodative amplitude. In this case series, post-concussion vision problems were prevalent and CI and AI were the most common diagnoses. Vision therapy had a successful or improved outcome in the vast majority of cases that completed treatment. Evaluation of patients with a history of concussion should include testing of vergence, accommodative, and eye movement function. Prospective clinical trials are necessary to assess the natural history of concussion-related vision disorders and

  4. Shaping space programme as a tool for educating youth about architecture

    Science.gov (United States)

    Marczak, Piotr

    2017-10-01

    The Polish Architectural Policy’s vision of a systematic promotion of spatial culture has made its way into the national curriculum for 2009 – 2016 designed for various stages of child and teenager education. The objective of this effort was to furnish a basis for a system of architectural education which allows teaching society to be more conscious in their decisions as to spatial order with the effect of improving the quality of our living space. Educating individuals to engage consciously in activities related to the protection of space and transformations taking place within that space requires an understanding of basic issues connected with space, the nature of space and the interrelations of various elements which form it. The “Shaping space” programme under the patronage of the Chamber of Polish Architects is one of the tools dedicated to students of lower and higher secondary schools, designed to assist teachers as architectural educators. The aim of this paper is to present the results of a survey related to the implementation of the programme in Lower Secondary School 3 in Malbork in the years 2013-2016. The programme involved observation of students (of grades 1 to 3) in architecture-oriented classes, assistance for the teacher in the class rooms well as an evaluation of the usefulness of educational materials. A number of problems became evident during the implementation of the “Shaping space” programme which is now available in book form. The size of the book is large enough to discourage any potential readers. The subject matter of the book is not suitable for the intended age group (age: 13-16). Another issue was the teacher’s suitability to conduct this type of class. Class observation in grades 1-3 of the lower secondary school and discussions with teachers in charge of that programme served as a basis for developing our own tools and materials in the form of multimedia presentations, templates and lesson scenarios designed to convey

  5. Vision and visualization.

    Science.gov (United States)

    Wade, Nicholas J

    2008-01-01

    The art of visual communication is not restricted to the fine arts. Scientists also apply art in communicating their ideas graphically. Diagrams of anatomical structures, like the eye and visual pathways, and figures displaying specific visual phenomena have assisted in the communication of visual ideas for centuries. It is often the case that the development of a discipline can be traced through graphical representations and this is explored here in the context of concepts of visual science. As with any science, vision can be subdivided in a variety of ways. The classification adopted is in terms of optics, anatomy, and visual phenomena; each of these can in turn be further subdivided. Optics can be considered in terms of the nature of light and its transmission through the eye. Understanding of the gross anatomy of the eye and visual pathways was initially dependent upon the skills of the anatomist whereas microanatomy relied to a large extent on the instruments that could resolve cellular detail, allied to the observational skills of the microscopist. Visual phenomena could often be displayed on the printed page, although novel instruments expanded the scope of seeing, particularly in the nineteenth century.

  6. Fly motion vision.

    Science.gov (United States)

    Borst, Alexander; Haag, Juergen; Reiff, Dierk F

    2010-01-01

    Fly motion vision and resultant compensatory optomotor responses are a classic example for neural computation. Here we review our current understanding of processing of optic flow as generated by an animal's self-motion. Optic flow processing is accomplished in a series of steps: First, the time-varying photoreceptor signals are fed into a two-dimensional array of Reichardt-type elementary motion detectors (EMDs). EMDs compute, in parallel, local motion vectors at each sampling point in space. Second, the output signals of many EMDs are spatially integrated on the dendrites of large-field tangential cells in the lobula plate. In the third step, tangential cells form extensive interactions with each other, giving rise to their large and complex receptive fields. Thus, tangential cells can act as matched filters tuned to optic flow during particular flight maneuvers. They finally distribute their information onto postsynaptic descending neurons, which either instruct the motor centers of the thoracic ganglion for flight and locomotion control or act themselves as motor neurons that control neck muscles for head movements.

  7. 2020 vision for KAUST

    CERN Multimedia

    CERN Bulletin

    2010-01-01

    Felicitas Pauss, Head of International Relations at CERN, greets Members of the Board of Trustees of the King Abdullah University of Science and Technology, KAUST, who visited CERN on Friday 6 August.   Members of Board of Trustees of the King Abdullah University of Science and Technology upon their arrival at CERN. KAUST, which is situated on Saudi Arabia’s Red Sea coast, is a new, forward-looking co-educational and research university with a vision to become one of the world’s top ten science and technology Universities by 2020, stimulating the intellectual life of Saudi Arabia and making significant contributions to the country’s economy. CERN’s Director General, Rolf Heuer, is a member of the Board of Trustees. “I accepted the invitation to join the board because I believe that KAUST’s values can make a real difference to the region and to the world,” he said. The University’s mission statement emphasises achiev...

  8. The Salman Mosque: Achmad Noe’man’s Critique of Indonesian Conventional Mosque Architecture

    Science.gov (United States)

    Holik, A. A. R.; Aryanti, T.

    2017-03-01

    The Salman Mosque, designed by Achmad Noe’man, was a striking Islamic architectural design in the 1960s when it was built. Unlike the conventional mosques, particularly in Indonesia, it has no dome. Instead, the roof was made of prestressed concrete and resembles a canoe. Using data drawn from field observations, this paper explores the architectural characteristics of the Salman Mosque as a product of Modern architecture. It argues that the domeless mosque, the simple minaret, the wooden wall panels and floor, the women’s balcony, and the roof demonstrate architectural modernism, as opposed to the conventional mosque typology that flourished in Indonesia at the time. This paper further argues that the Salman Mosque is Noe’man’s critique of the Indonesian conventional mosque architecture. It concludes that the architectural features of the Salman Mosque reflects Noe’man’s modern vision of Islam and Islamic architecture.

  9. Space Architecture: The Role, Work and Aptitude

    Science.gov (United States)

    Griffin, Brand

    2014-01-01

    Space architecture has been an emerging discipline for at least 40 years. Has it arrived? Is space architecture a legitimate vocation or an avocation? If it leads to a job, what do employers want? In 2002, NASA Headquarters created a management position for a space architect whose job was to "lead the development of strategic architectures and identify high level requirements for systems that will accomplish the Nation's space exploration vision." This is a good job description with responsibility at the right level in NASA, but unfortunately, the office was discontinued two years later. Even though there is no accredited academic program or professional licensing for space architecture, there is a community of practitioners. They are civil servants, contractors and academicians supporting International Space Station and space exploration programs. In various ways, space architects currently contribute to human spaceflight, but there is a way for the discipline to be more effective in developing solutions to large scale complex problems. This paper organizes contributions from engineers, architects and psychologists into recommendations on the role of space architects in the organization, the process of creating and selecting options, and intrinsic personality traits including why they must have a high tolerance for ambiguity.

  10. Toxic Elements

    DEFF Research Database (Denmark)

    Hajeb, Parvaneh; Shakibazadeh, Shahram; Sloth, Jens Jørgen

    2016-01-01

    Food is considered the main source of toxic element (arsenic, cadmium, lead, and mercury) exposure to humans, and they can cause major public health effects. In this chapter, we discuss the most important sources for toxic element in food and the foodstuffs which are significant contributors...... to human exposure. The occurrence of each element in food classes from different regions is presented. Some of the current toxicological risk assessments on toxic elements, the human health effect of each toxic element, and their contents in the food legislations are presented. An overview of analytical...... techniques and challenges for determination of toxic elements in food is also given....

  11. A Multistep Framework for Vision Based Vehicle Detection

    Directory of Open Access Journals (Sweden)

    Hai Wang

    2014-01-01

    Full Text Available Vision based vehicle detection is a critical technology that plays an important role in not only vehicle active safety but also road video surveillance application. In this work, a multistep framework for vision based vehicle detection is proposed. In the first step, for vehicle candidate generation, a novel geometrical and coarse depth information based method is proposed. In the second step, for candidate verification, a deep architecture of deep belief network (DBN for vehicle classification is trained. In the last step, a temporal analysis method based on the complexity and spatial information is used to further reduce miss and false detection. Experiments demonstrate that this framework is with high true positive (TP rate as well as low false positive (FP rate. On road experimental results demonstrate that the algorithm performs better than state-of-the-art vehicle detection algorithm in testing data sets.

  12. Computer Vision for Timber Harvesting

    DEFF Research Database (Denmark)

    Dahl, Anders Lindbjerg

    The goal of this thesis is to investigate computer vision methods for timber harvesting operations. The background for developing computer vision for timber harvesting is to document origin of timber and to collect qualitative and quantitative parameters concerning the timber for efficient harvest...... segments. The purpose of image segmentation is to make the basis for more advanced computer vision methods like object recognition and classification. Our second method concerns image classification and we present a method where we classify small timber samples to tree species based on Active Appearance...... to the development of the logTracker system the described methods have a general applicability making them useful for many other computer vision problems....

  13. Do You Have Low Vision?

    Science.gov (United States)

    ... Ojos Cómo hablarle a su oculista Do You Have Low Vision? There are many signs that can ... example, even with your regular glasses, you may have difficulty: Recognizing faces of friends and relatives. Doing ...

  14. Low vision rehabilitation: current perspectives

    National Research Council Canada - National Science Library

    Vingolo, Enzo Maria; De Rosa, Vittoria; Domanico, Daniela; Anselmucci, Federico

    2015-01-01

    ...: Quality of life in low vision patients is deeply conditioned by their visual ability, and increased rates of depression, domestic injury, and need for caregiver assistance can be expected as a result of low performance...

  15. Clinical Trials in Vision Research

    Science.gov (United States)

    ... Clinical Trials in Vision Research Booklet for Nook, iPad and iPhone (EPUB - 1.6MB) Download the Clinical ... NEI Office of Science Communications, Public Liaison, and Education. Technical questions about this website can be addressed ...

  16. Tourists' Transformation Experience: From Destination Architecture to Identity Formation

    DEFF Research Database (Denmark)

    Ye, Helen Yi; Tussyadiah, Iis

    2010-01-01

    in a destination and if architecture facilitates tourists’ self transformation. Based on narrative structure analysis by deconstruction of travel blog posts, the results suggest that tourists perceive architectural landscape as an important feature that reflects destinations’ identity. Four different interaction......Today’s tourists seek unique destinations that could associate with their self identity in a profound way. It is meaningful for destinations to design unique physical elements that offer transformational travel experiences. This study aims at identifying how tourists encounter architecture...... modes—gazing, touring, reading and pondering are identified. Conversational architectural design is suggested for destinations to create a unique experience....

  17. Artificial intelligence and computer vision

    CERN Document Server

    Li, Yujie

    2017-01-01

    This edited book presents essential findings in the research fields of artificial intelligence and computer vision, with a primary focus on new research ideas and results for mathematical problems involved in computer vision systems. The book provides an international forum for researchers to summarize the most recent developments and ideas in the field, with a special emphasis on the technical and observational results obtained in the past few years.

  18. [Acquired disorders of color vision].

    Science.gov (United States)

    Lascu, Lidia; Balaş, Mihaela

    2002-01-01

    This article is a general view of acquired disorders of color vision. The revision of the best known methods and of the etiopathogenic classification is not very important in ophthalmology but on the other hand, the detection of the blue defect advertise and associated ocular pathology. There is a major interest in serious diseases as multiple sclerosis, AIDS, diabetes melitus, when the first ocular sign can be a defect in the color vision.

  19. Secure Storage Architectures

    Energy Technology Data Exchange (ETDEWEB)

    Aderholdt, Ferrol [Tennessee Technological University; Caldwell, Blake A [ORNL; Hicks, Susan Elaine [ORNL; Koch, Scott M [ORNL; Naughton, III, Thomas J [ORNL; Pogge, James R [Tennessee Technological University; Scott, Stephen L [Tennessee Technological University; Shipman, Galen M [ORNL; Sorrillo, Lawrence [ORNL

    2015-01-01

    The purpose of this report is to clarify the challenges associated with storage for secure enclaves. The major focus areas for the report are: - review of relevant parallel filesystem technologies to identify assets and gaps; - review of filesystem isolation/protection mechanisms, to include native filesystem capabilities and auxiliary/layered techniques; - definition of storage architectures that can be used for customizable compute enclaves (i.e., clarification of use-cases that must be supported for shared storage scenarios); - investigate vendor products related to secure storage. This study provides technical details on the storage and filesystem used for HPC with particular attention on elements that contribute to creating secure storage. We outline the pieces for a a shared storage architecture that balances protection and performance by leveraging the isolation capabilities available in filesystems and virtualization technologies to maintain the integrity of the data. Key Points: There are a few existing and in-progress protection features in Lustre related to secure storage, which are discussed in (Chapter 3.1). These include authentication capabilities like GSSAPI/Kerberos and the in-progress work for GSSAPI/Host-keys. The GPFS filesystem provides native support for encryption, which is not directly available in Lustre. Additionally, GPFS includes authentication/authorization mechanisms for inter-cluster sharing of filesystems (Chapter 3.2). The limitations of key importance for secure storage/filesystems are: (i) restricting sub-tree mounts for parallel filesystem (which is not directly supported in Lustre or GPFS), and (ii) segregation of hosts on the storage network and practical complications with dynamic additions to the storage network, e.g., LNET. A challenge for VM based use cases will be to provide efficient IO forwarding of the parallel filessytem from the host to the guest (VM). There are promising options like para-virtualized filesystems to

  20. ARCHITECTURE AND ITS WINDAGE

    Directory of Open Access Journals (Sweden)

    Limonad Mikhail Yurievich

    2017-07-01

    Full Text Available The article deals with the composition of the landscape and building on the basis of the laws of aerodynamic resistance of objects to the wind flow and the resulting physical effect of sail. The application of landscape-visual assessment based on windage properties as a criterion for the development of the architectural and town-planning appearance of buildings is presented. Windage is studied as a physical phenomenon arising in landscape forms, buildings, loose materials, surface and vegetation of the relief. Similarities are found between the silhouettes of windage ships and urban buildings. It is revealed that in the architectural qualification the center of the sail and the center of the lateral resistance of the object can help assess the relative position of the elements of the landscape and the appearance of the building in order to achieve compositional integrity. Thus, a technique for assessing visual appearance based on a system of visual moments of sailness with respect to the object’s observation center has been developed. The influence of high-rise buildings on the conditions of the active surface for human stay on domestic and foreign examples is analyzed. Among the described objects there are high-rise buildings on Novy Arbat in Moscow, the sculpture “Motherland Calls!” In Volgograd, Spinaker Tower in Portsmouth (United Kingdom, Burj Al Arab Hotel in Dubai (United Arab Emirates. It is noted that to assess the compositional integrity of the observed landscapes by visual windage, photographs from the ground level and significant heights of window openings are used. It is proposed to use this to assess the existing types and panoramas, for which they need to capture a photo or video of planar or volumetric images, while performing editing to establish the adequacy of visual perception of a person in real conditions. In conclusion, the result of the study reveals the application of the method of assessing visual windage to

  1. Knowledge and Architectural Practice

    DEFF Research Database (Denmark)

    Verbeke, Johan

    2017-01-01

    This paper focuses on the specific knowledge residing in architectural practice. It is based on the research of 35 PhD fellows in the ADAPT-r (Architecture, Design and Art Practice Training-research) project. The ADAPT-r project innovates architectural research in combining expertise from academia...... and from practice in order to highlight and extract the specific kind of knowledge which resides and is developed in architectural practice (creative practice research). The paper will discuss three ongoing and completed PhD projects and focusses on the outcomes and their contribution to the field....... Specific to these research projects is that the researcher is within academia but stays emerged in architectural practice. The projects contribute to a better understanding of architectural practice, how it develops and what kind of knowledge is crucial. Furthermore, the paper will develop a reflection...

  2. Enterprise architecture management

    DEFF Research Database (Denmark)

    Rahimi, Fatemeh; Gøtze, John; Møller, Charles

    2017-01-01

    Despite the growing interest in enterprise architecture management, researchers and practitioners lack a shared understanding of its applications in organizations. Building on findings from a literature review and eight case studies, we develop a taxonomy that categorizes applications of enterprise...... architecture management based on three classes of enterprise architecture scope. Organizations may adopt enterprise architecture management to help form, plan, and implement IT strategies; help plan and implement business strategies; or to further complement the business strategy-formation process....... The findings challenge the traditional IT-centric view of enterprise architecture management application and suggest enterprise architecture management as an approach that could support the consistent design and evolution of an organization as a whole....

  3. Architecture and Stages

    DEFF Research Database (Denmark)

    Kiib, Hans

    2009-01-01

    Architecture and Art as Fuel New development zones for shopping and entertainment and space for festivals inside the city CAN be coupled with art and architecture and become ‘open minded' public domains based on cultural exchange and mutual learning. This type of space could be labelled...... as "experiencescape" - a space between tourism, culture, learning and economy. Strategies related to these challenges involve new architectural concepts and art as ‘engines' for a change. New expressive architecture and old industrial buildings are often combined into hybrid narratives, linking the past...... with the future. But this is not enough. The agenda is to develop architectural spaces, where social interaction and learning are enhanced by art and fun. How can we develop new architectural designs in our inner cities and waterfronts where eventscapes, learning labs and temporal use are merged with everyday...

  4. Machine Learning for Computer Vision

    CERN Document Server

    Battiato, Sebastiano; Farinella, Giovanni

    2013-01-01

    Computer vision is the science and technology of making machines that see. It is concerned with the theory, design and implementation of algorithms that can automatically process visual data to recognize objects, track and recover their shape and spatial layout. The International Computer Vision Summer School - ICVSS was established in 2007 to provide both an objective and clear overview and an in-depth analysis of the state-of-the-art research in Computer Vision. The courses are delivered by world renowned experts in the field, from both academia and industry, and cover both theoretical and practical aspects of real Computer Vision problems. The school is organized every year by University of Cambridge (Computer Vision and Robotics Group) and University of Catania (Image Processing Lab). Different topics are covered each year. A summary of the past Computer Vision Summer Schools can be found at: http://www.dmi.unict.it/icvss This edited volume contains a selection of articles covering some of the talks and t...

  5. Enhancement of the Logistics Battle Command Model: Architecture Upgrades and Attrition Module Development

    Science.gov (United States)

    2017-01-05

    Battle Command Model Architecture Upgrades and Attrition Module Development U.S. Army TRADOC Analysis Center-Monterey 700 Dyer...17-010 January 2017 Enhancement of the Logistics Battle Command Model Architecture Upgrades and Attrition Module Development Nathan Parker...Logistics Battle Command Model Architecture Upgrades and Attrition Module Development 5a. CONTRACT NUMBER 5b. GRANT NUMBER 5c. PROGRAM ELEMENT

  6. Thermal Management of Quantum Cascade Lasers in an individually Addressable Array Architecture

    Science.gov (United States)

    2016-02-08

    Thermal Management of Quantum Cascade Lasers in an Individually Addressable Monolithic Array Architecture Leo Missaggia, Christine Wang, Michael...regards to the design of the packaging architecture required to facilitate the CBC of emitter arrays containing large numbers of elements...characteristics of QCL device performance which make QCL array architectures thermally challenging. Among these are; 1. Relatively low electrical

  7. View How Glaucoma May Affect Vision

    Science.gov (United States)

    ... inbox. Sign up View How Glaucoma May Affect Vision Normal Vision This is an example of normal vision. This is also an example of how someone ... gradual and often imperceptible failing of side (peripheral) vision. Intermediate Glaucoma As glaucoma progresses, the center of ...

  8. Software Architecture Evolution

    Science.gov (United States)

    2013-12-01

    Software Architecture Evolution Jeffrey M. Barnes December 2013 CMU-ISR-13-118 Institute for Software Research School of Computer Science Carnegie...DEC 2013 2. REPORT TYPE 3. DATES COVERED 00-00-2013 to 00-00-2013 4. TITLE AND SUBTITLE Software Architecture Evolution 5a. CONTRACT NUMBER 5b...systems eventually undergo changes to their basic architectural structure. Such changes may be prompted by new feature requests, new quality attribute

  9. Architecture for the senses

    DEFF Research Database (Denmark)

    Ryhl, Camilla

    2009-01-01

    Accommodating sensory disabilities in architectural design requires specific design considerations. These are different from the ones included by the existing design concept 'accessibility', which primarily accommodates physical disabilites. Hence a new design concept 'sensory accessbility......' is presented as a parallel and complementary concept to the existing one. Sensory accessiblity accommodates sensory disabilities and describes architectural design requirements needed to ensure access to to the sensory experiences and architectural quality of a given space. The article is based on research...

  10. GSFC Information Systems Technology Developments Supporting the Vision for Space Exploration

    Science.gov (United States)

    Hughes, Peter; Dennehy, Cornelius; Mosier, Gary; Smith, Dan; Rykowski, Lisa

    2004-01-01

    The Vision for Space Exploration will guide NASA's future human and robotic space activities. The broad range of human and robotic missions now being planned will require the development of new system-level capabilities enabled by emerging new technologies. Goddard Space Flight Center is actively supporting the Vision for Space Exploration in a number of program management, engineering and technology areas. This paper provides a brief background on the Vision for Space Exploration and a general overview of potential key Goddard contributions. In particular, this paper focuses on describing relevant GSFC information systems capabilities in architecture development; interoperable command, control and communications; and other applied information systems technology/research activities that are applicable to support the Vision for Space Exploration goals. Current GSFC development efforts and task activities are presented together with future plans.

  11. Time comparison in image processing: APS sensors versus an artificial retina based vision system

    Science.gov (United States)

    Elouardi, A.; Bouaziz, S.; Dupret, A.; Lacassagne, L.; Klein, J. O.; Reynaud, R.

    2007-09-01

    To resolve the computational complexity of computer vision algorithms, one of the solutions is to perform some low-level image processing on the sensor focal plane. It becomes a smart sensor device called a retina. This concept makes vision systems more compact. It increases performance thanks to the reduction of the data flow exchanges with external circuits. This paper presents a comparison between two different vision system architectures. The first one involves a smart sensor including analogue processors allowing on-chip image processing. An external microprocessor is used to control the on-chip dataflow and integrated operators. The second system implements a logarithmic CMOS/APS sensor interfaced to the same microprocessor, in which all computations are carried out. We have designed two vision systems as proof of concept. The comparison is related to image processing time.

  12. Grid Architecture 2

    Energy Technology Data Exchange (ETDEWEB)

    Taft, Jeffrey D. [Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

    2016-01-01

    The report describes work done on Grid Architecture under the auspices of the Department of Electricity Office of Electricity Delivery and Reliability in 2015. As described in the first Grid Architecture report, the primary purpose of this work is to provide stakeholder insight about grid issues so as to enable superior decision making on their part. Doing this requires the creation of various work products, including oft-times complex diagrams, analyses, and explanations. This report provides architectural insights into several important grid topics and also describes work done to advance the science of Grid Architecture as well.

  13. Towards a Media Architecture

    DEFF Research Database (Denmark)

    Ebsen, Tobias

    2010-01-01

    This text explores the concept of media architecture as a phenomenon of visual culture that describes the use of screen-technology in new spatial configurations in practices of architecture and art. I shall argue that this phenomenon is not necessarily a revolutionary new approach, but rather...... a result of conceptual changes in both modes visual representation and in expressions of architecture. These are changes the may be described as an evolution of ideas and consequent experiments that can be traced back to changes in the history of art and the various styles and ideologies of architecture....

  14. Novel porcine repetitive elements

    Directory of Open Access Journals (Sweden)

    Nonneman Dan J

    2006-12-01

    Full Text Available Abstract Background Repetitive elements comprise ~45% of mammalian genomes and are increasingly known to impact genomic function by contributing to the genomic architecture, by direct regulation of gene expression and by affecting genomic size, diversity and evolution. The ubiquity and increasingly understood importance of repetitive elements contribute to the need to identify and annotate them. We set out to identify previously uncharacterized repetitive DNA in the porcine genome. Once found, we characterized the prevalence of these repeats in other mammals. Results We discovered 27 repetitive elements in 220 BACs covering 1% of the porcine genome (Comparative Vertebrate Sequencing Initiative; CVSI. These repeats varied in length from 55 to 1059 nucleotides. To estimate copy numbers, we went to an independent source of data, the BAC-end sequences (Wellcome Trust Sanger Institute, covering approximately 15% of the porcine genome. Copy numbers in BAC-ends were less than one hundred for 6 repeat elements, between 100 and 1000 for 16 and between 1,000 and 10,000 for 5. Several of the repeat elements were found in the bovine genome and we have identified two with orthologous sites, indicating that these elements were present in their common ancestor. None of the repeat elements were found in primate, rodent or dog genomes. We were unable to identify any of the replication machinery common to active transposable elements in these newly identified repeats. Conclusion The presence of both orthologous and non-orthologous sites indicates that some sites existed prior to speciation and some were generated later. The identification of low to moderate copy number repetitive DNA that is specific to artiodactyls will be critical in the assembly of livestock genomes and studies of comparative genomics.

  15. Enterprise Architecture in the Company Management Framework

    Directory of Open Access Journals (Sweden)

    Bojinov Bojidar Violinov

    2016-11-01

    Full Text Available The study aims to explore the role and importance of the concept of enterprise architecture in modern company management. For this purpose it clarifies the nature, scope, components of the enterprise architecture and relationships within it using the Zachman model. Based on the critical analysis of works by leading scientists, there presented a definition of enterprise architecture as a general description of all elements of strategic management of the company combined with description of its organizational, functional and operational structure, including the relationship between all tangible and intangible resources essential for its normal functioning and development. This in turn enables IT enterprise architecture to be defined as a set of corporate IT resources (hardware, software and technology, their interconnection and integration within the overall architecture of the company, as well as their formal description, methods and tools for their modeling and management in order to achieve strategic business goals of the organization. In conclusion the article summarizes the significance and role of enterprise architecture for strategic management of the company in today’s digital economy. The study underlines the importance of an integrated multidisciplinary approach to the work of a contemporary company, and the need for adequate matching and alignment of IT with business priorities and objectives of the company.

  16. Differences in the use of vision and proprioception for postural control in autism spectrum disorder.

    Science.gov (United States)

    Morris, S L; Foster, C J; Parsons, R; Falkmer, M; Falkmer, T; Rosalie, S M

    2015-10-29

    People with autism spectrum disorders (ASDs) also have poorer fundamental motor skills. The development of postural control underlies both social and motor skills. All three elements are facilitated by the active use of visual information. This study compares how adults with ASD and typically developed adults (TDAs) respond to a postural illusion induced using neck vibration. Adults with ASD unlike the TDA, were not expected to correct the illusion using vision. The study used intermittent (15off, 5on) posterior neck vibration during 200 s of quiet stance to induce a postural illusion. In TDAs and only in the absence of vision this protocol induces a forward body lean. Participants (12 ASD, 20 TDA) undertook four conditions combining vibration and visual occlusion. As predicted, TDA were only affected by the postural illusion when vision was occluded (vibration condition: vision occluded (n=1) p=0.0001; vision available (n=3) p>0.2466). Adults with ASD were affected by the postural illusion regardless of the availability of vision (all conditions pposture. In light of existing evidence that vision-for-perception is processed typically in ASD, our findings support a specific deficit in vision-for-action. These findings may explain why individuals with ASD experience difficulties with both social and motor skills since both require vision-for-action. Further research needs to investigate the division of these visual learning pathways in order to provide more specific intervention opportunities in ASD. Copyright © 2015 IBRO. Published by Elsevier Ltd. All rights reserved.

  17. Evolutionary replacement of UV vision by violet vision in fish.

    Science.gov (United States)

    Tada, Takashi; Altun, Ahmet; Yokoyama, Shozo

    2009-10-13

    The vertebrate ancestor possessed ultraviolet (UV) vision and many species have retained it during evolution. Many other species switched to violet vision and, then again, some avian species switched back to UV vision. These UV and violet vision are mediated by short wavelength-sensitive (SWS1) pigments that absorb light maximally (lambda(max)) at approximately 360 and 390-440 nm, respectively. It is not well understood why and how these functional changes have occurred. Here, we cloned the pigment of scabbardfish (Lepidopus fitchi) with a lambda(max) of 423 nm, an example of violet-sensitive SWS1 pigment in fish. Mutagenesis experiments and quantum mechanical/molecular mechanical (QM/MM) computations show that the violet-sensitivity was achieved by the deletion of Phe-86 that converted the unprotonated Schiff base-linked 11-cis-retinal to a protonated form. The finding of a violet-sensitive SWS1 pigment in scabbardfish suggests that many other fish also have orthologous violet pigments. The isolation and comparison of such violet and UV pigments in fish living in different ecological habitats will open an unprecedented opportunity to elucidate not only the molecular basis of phenotypic adaptations, but also the genetics of UV and violet vision.

  18. Vision Loss in Older Adults.

    Science.gov (United States)

    Pelletier, Allen L; Rojas-Roldan, Ledy; Coffin, Janis

    2016-08-01

    Vision loss affects 37 million Americans older than 50 years and one in four who are older than 80 years. The U.S. Preventive Services Task Force concludes that current evidence is insufficient to assess the balance of benefits and harms of screening for impaired visual acuity in adults older than 65 years. However, family physicians play a critical role in identifying persons who are at risk of vision loss, counseling patients, and referring patients for disease-specific treatment. The conditions that cause most cases of vision loss in older patients are age-related macular degeneration, glaucoma, ocular complications of diabetes mellitus, and age-related cataracts. Vitamin supplements can delay the progression of age-related macular degeneration. Intravitreal injection of a vascular endothelial growth factor inhibitor can preserve vision in the neovascular form of macular degeneration. Medicated eye drops reduce intraocular pressure and can delay the progression of vision loss in patients with glaucoma, but adherence to treatment is poor. Laser trabeculoplasty also lowers intraocular pressure and preserves vision in patients with primary open-angle glaucoma, but long-term studies are needed to identify who is most likely to benefit from surgery. Tight glycemic control in adults with diabetes slows the progression of diabetic retinopathy, but must be balanced against the risks of hypoglycemia and death in older adults. Fenofibrate also slows progression of diabetic retinopathy. Panretinal photocoagulation is the mainstay of treatment for diabetic retinopathy, whereas vascular endothelial growth factor inhibitors slow vision loss resulting from diabetic macular edema. Preoperative testing before cataract surgery does not improve outcomes and is not recommended.

  19. Experimental simulation of simultaneous vision.

    Science.gov (United States)

    de Gracia, Pablo; Dorronsoro, Carlos; Sánchez-González, Álvaro; Sawides, Lucie; Marcos, Susana

    2013-01-17

    To present and validate a prototype of an optical instrument that allows experimental simulation of pure bifocal vision. To evaluate the influence of different power additions on image contrast and visual acuity. The instrument provides the eye with two superimposed images, aligned and with the same magnification, but with different defocus states. Subjects looking through the instrument are able to experience pure simultaneous vision, with adjustable refractive correction and addition power. The instrument is used to investigate the impact of the amount of addition of an ideal bifocal simultaneous vision correction, both on image contrast and on visual performance. the instrument is validated through computer simulations of the letter contrast and by equivalent optical experiments with an artificial eye (camera). Visual acuity (VA) was measured in four subjects (AGE: 34.3 ± 3.4 years; spherical error: -2.1 ± 2.7 diopters [D]) for low and high contrast letters and different amounts of addition. The largest degradation in contrast and visual acuity (∼25%) occurred for additions around ±2 D, while additions of ±4 D produced lower degradation (14%). Low additions (1-2 D) result in lower VA than high additions (3-4 D). A simultaneous vision instrument is an excellent tool to simulate bifocal vision and to gain understanding of multifocal solutions for presbyopia. Simultaneous vision induces a pattern of visual performance degradation, which is well predicted by the degradation found in image quality. Neural effects, claimed to be crucial in the patients' tolerance of simultaneous vision, can be therefore compared with pure optical effects.

  20. Sense creative! The impact of global and local vision, hearing, touching, tasting, and smelling on creative and analytic thought

    NARCIS (Netherlands)

    Förster, J.; Denzler, M.

    2012-01-01

    Holistic (global) versus elemental (local) perception reflects a prominent distinction in psychology; however, so far it has almost entirely been examined in the domain of vision. Current work suggests that global/local processing styles operate across sensory modalities. As for vision, it is

  1. Fusion of Multi-Vision of Industrial Robot in MAS-Based Smart Space

    Directory of Open Access Journals (Sweden)

    Li Hexi

    2015-01-01

    Full Text Available The paper presents a fusion method of muti-vision of industrial robot in a smart space based on multi-agent system(MAS, the robotic multi-vision consists of top-view, side-view, front-view and hand-eye cameras, the moving hand-eye provide vision guidance and give the estimation of robot position, other three cameras are used for target recognition and positioning. Each camera is connected to an agent based on an image-processing computer that aims at analyzing image rapidly and satisfying the real-time requirement of data processing. As a learning strategy of robotic vision, a back-propagation neural network(BPNN with 3-layer-architecture is first constructed for each agent and is independently trained as a classifier of target recognition using batch gradient descent method based on the region features extracted from the images of target samples(typical mechanical parts, and then the outputs of trained BPNNs in MAS-based smart space are fused with Dempster-Shafer evidence theory to form a final recognition decision, the experimental results of typical mechanical parts show that fusion of multi-vision can improve the robotic vision accuracy and MAS-based smart space will contribute to the parallel processing of immense image data in robotic multi-vision system.

  2. Digital visual communications using a Perceptual Components Architecture

    Science.gov (United States)

    Watson, Andrew B.

    1991-01-01

    The next era of space exploration will generate extraordinary volumes of image data, and management of this image data is beyond current technical capabilities. We propose a strategy for coding visual information that exploits the known properties of early human vision. This Perceptual Components Architecture codes images and image sequences in terms of discrete samples from limited bands of color, spatial frequency, orientation, and temporal frequency. This spatiotemporal pyramid offers efficiency (low bit rate), variable resolution, device independence, error-tolerance, and extensibility.

  3. Vision Guided Intelligent Robot Design And Experiments

    Science.gov (United States)

    Slutzky, G. D.; Hall, E. L.

    1988-02-01

    The concept of an intelligent robot is an important topic combining sensors, manipulators, and artificial intelligence to design a useful machine. Vision systems, tactile sensors, proximity switches and other sensors provide the elements necessary for simple game playing as well as industrial applications. These sensors permit adaption to a changing environment. The AI techniques permit advanced forms of decision making, adaptive responses, and learning while the manipulator provides the ability to perform various tasks. Computer languages such as LISP and OPS5, have been utilized to achieve expert systems approaches in solving real world problems. The purpose of this paper is to describe several examples of visually guided intelligent robots including both stationary and mobile robots. Demonstrations will be presented of a system for constructing and solving a popular peg game, a robot lawn mower, and a box stacking robot. The experience gained from these and other systems provide insight into what may be realistically expected from the next generation of intelligent machines.

  4. Enterprise architecture intelligence

    NARCIS (Netherlands)

    Veneberg, R.K.M.; Iacob, Maria Eugenia; van Sinderen, Marten J.; Bodenstaff, L.; Reichert, M.U.; Rinderle-Ma, S.; Grossmann, G.

    2014-01-01

    Combining enterprise architecture and operational data is complex (especially when considering the actual ‘matching’ of data with enterprise architecture objects), and little has been written on how to do this. Therefore, in this paper we aim to fill this gap and propose a method to combine

  5. Towards Adaptive Evolutionary Architecture

    DEFF Research Database (Denmark)

    Bak, Sebastian HOlt; Rask, Nina; Risi, Sebastian

    2016-01-01

    This paper presents first results from an interdisciplinary project, in which the fields of architecture, philosophy and artificial life are combined to explore possible futures of architecture. Through an interactive evolutionary installation, called EvoCurtain, we investigate aspects of how...

  6. Architecture and energy

    DEFF Research Database (Denmark)

    Marsh, Rob; Lauring, Michael

    2011-01-01

    Traditional low-energy architecture has not necessarily led to reduced energy consumption. A paradigm shift is proposed promoting pluralistic energy-saving strategies.......Traditional low-energy architecture has not necessarily led to reduced energy consumption. A paradigm shift is proposed promoting pluralistic energy-saving strategies....

  7. Digitally-Driven Architecture

    Directory of Open Access Journals (Sweden)

    Henriette Bier

    2010-06-01

    Full Text Available The shift from mechanical to digital forces architects to reposition themselves: Architects generate digital information, which can be used not only in designing and fabricating building components but also in embedding behaviours into buildings. This implies that, similar to the way that industrial design and fabrication with its concepts of standardisation and serial production influenced modernist architecture, digital design and fabrication influences contemporary architecture. While standardisa­tion focused on processes of rationalisation of form, mass-customisation as a new paradigm that replaces mass-production, addresses non-standard, complex, and flexible designs. Furthermore, knowledge about the designed object can be encoded in digital data pertaining not just to the geometry of a design but also to its physical or other behaviours within an environment. Digitally-driven architecture implies, therefore, not only digitally-designed and fabricated architecture, it also implies architecture – built form – that can be controlled, actuated, and animated by digital means. In this context, this sixth Footprint issue examines the influence of digital means as prag­matic and conceptual instruments for actuating architecture. The focus is not so much on computer-based systems for the development of architectural designs, but on architecture incorporating digital control, sens­ing, actuating, or other mechanisms that enable buildings to inter­act with their users and surroundings in real time in the real world through physical or sensory change and variation.

  8. Architecture and Intelligentsia

    Directory of Open Access Journals (Sweden)

    Alexander Rappaport

    2015-08-01

    Full Text Available The article observes intellectual and cultural level of architecture and its important functions in social process. Historical analysis shows constant decline of intellectual level of profession, as a reaction on radical changes in its social functions and mass scale, leading to degrading of individual critical reflection and growing dependence of architecture to political and economical bureaucracy.

  9. Information Architecture: Looking Ahead.

    Science.gov (United States)

    Rosenfeld, Louis

    2002-01-01

    Considers the future of the field of information architecture. Highlights include a comparison with the growth of the field of professional management; the design of information systems since the Web; more demanding users; the need for an interdisciplinary approach; and how to define information architecture. (LRW)

  10. Aesthetics of sustainable architecture

    NARCIS (Netherlands)

    Lee, S.; Hill, G.; Sauerbruch, M.; Hutton, L.; Knowles, R.; Bothwell, K.; Brennan, J.; Jauslin, D.; Holzheu, H.; AlSayyad, N.; Arboleda, G.; Bharne, V.; Røstvik, H.; Kuma, K.; Sunikka-Blank, M.; Glaser, M.; Pero, E.; Sjkonsberg, M.; Teuffel, P.; Mangone, G.; Finocchiaro, L.; Hestnes, A.; Briggs, D.; Frampton, K.; Lee, S.

    2011-01-01

    The purpose of this book is to reveal, explore and further the debate on the aesthetic potentials of sustainable architecture and its practice. This book opens a new area of scholarship and discourse in the design and production of sustainable architecture, one that is based in aesthetics. The

  11. Workflow automation architecture standard

    Energy Technology Data Exchange (ETDEWEB)

    Moshofsky, R.P.; Rohen, W.T. [Boeing Computer Services Co., Richland, WA (United States)

    1994-11-14

    This document presents an architectural standard for application of workflow automation technology. The standard includes a functional architecture, process for developing an automated workflow system for a work group, functional and collateral specifications for workflow automation, and results of a proof of concept prototype.

  12. Digitally-Driven Architecture

    Directory of Open Access Journals (Sweden)

    Henriette Bier

    2014-07-01

    Full Text Available The shift from mechanical to digital forces architects to reposition themselves: Architects generate digital information, which can be used not only in designing and fabricating building components but also in embedding behaviours into buildings. This implies that, similar to the way that industrial design and fabrication with its concepts of standardisation and serial production influenced modernist architecture, digital design and fabrication influences contemporary architecture. While standardisation focused on processes of rationalisation of form, mass-customisation as a new paradigm that replaces mass-production, addresses non-standard, complex, and flexible designs. Furthermore, knowledge about the designed object can be encoded in digital data pertaining not just to the geometry of a design but also to its physical or other behaviours within an environment. Digitally-driven architecture implies, therefore, not only digitally-designed and fabricated architecture, it also implies architecture – built form – that can be controlled, actuated, and animated by digital means.In this context, this sixth Footprint issue examines the influence of digital means as pragmatic and conceptual instruments for actuating architecture. The focus is not so much on computer-based systems for the development of architectural designs, but on architecture incorporating digital control, sens­ing, actuating, or other mechanisms that enable buildings to inter­act with their users and surroundings in real time in the real world through physical or sensory change and variation.

  13. Software Architecture Evolution

    Science.gov (United States)

    Barnes, Jeffrey M.

    2013-01-01

    Many software systems eventually undergo changes to their basic architectural structure. Such changes may be prompted by new feature requests, new quality attribute requirements, changing technology, or other reasons. Whatever the causes, architecture evolution is commonplace in real-world software projects. Today's software architects, however,…

  14. Architecture or Sculpture?

    DEFF Research Database (Denmark)

    Baumeister, Ruth

    2014-01-01

    Jørn Utzon´s museum design for Asger Jorn´s collection in Silkeborg contextualized in the postwar context of an organic architecture.......Jørn Utzon´s museum design for Asger Jorn´s collection in Silkeborg contextualized in the postwar context of an organic architecture....

  15. Using an Integrated Distributed Test Architecture to Develop an Architecture for Mars

    Science.gov (United States)

    Othon, William L.

    2016-01-01

    The creation of a crew-rated spacecraft architecture capable of sending humans to Mars requires the development and integration of multiple vehicle systems and subsystems. Important new technologies will be identified and matured within each technical discipline to support the mission. Architecture maturity also requires coordination with mission operations elements and ground infrastructure. During early architecture formulation, many of these assets will not be co-located and will required integrated, distributed test to show that the technologies and systems are being developed in a coordinated way. When complete, technologies must be shown to function together to achieve mission goals. In this presentation, an architecture will be described that promotes and advances integration of disparate systems within JSC and across NASA centers.

  16. Architecture as liminal Space

    Directory of Open Access Journals (Sweden)

    Nilly Harag

    2015-11-01

    Full Text Available The point of departure of the architectural project has to stem from the combination of inner and outer journeys in between the real or imagined limits. The pressing challenge is to destabilize the neat division of architecture into separate bodies of knowledge and pose the architect’s mode of action on the threshold between the concrete and the universal. Architecture is a lens, an instrument one looks through to bring new perspectives into focus, enabling the transformation of experience from a magnified self-concentrated space to a wide horizon. Architecture narrates relations between spaces and examines its validity through signifying practices of design. Design for itself becomes the language of the current, of the immediate fashion. Architecture can fulfill peoples’ dreams and miraculously can provide them tools to invent new ones: Curiosity is the first motive to act.

  17. Can architecture be barbaric?

    Science.gov (United States)

    Hürol, Yonca

    2009-06-01

    The title of this article is adapted from Theodor W. Adorno's famous dictum: 'To write poetry after Auschwitz is barbaric.' After the catastrophic earthquake in Kocaeli, Turkey on the 17th of August 1999, in which more than 40,000 people died or were lost, Necdet Teymur, who was then the dean of the Faculty of Architecture of the Middle East Technical University, referred to Adorno in one of his 'earthquake poems' and asked: 'Is architecture possible after 17th of August?' The main objective of this article is to interpret Teymur's question in respect of its connection to Adorno's philosophy with a view to make a contribution to the politics and ethics of architecture in Turkey. Teymur's question helps in providing a new interpretation of a critical approach to architecture and architectural technology through Adorno's philosophy. The paper also presents a discussion of Adorno's dictum, which serves for a better understanding of its universality/particularity.

  18. Elements of an integrated health monitoring framework

    Science.gov (United States)

    Fraser, Michael; Elgamal, Ahmed; Conte, Joel P.; Masri, Sami; Fountain, Tony; Gupta, Amarnath; Trivedi, Mohan; El Zarki, Magda

    2003-07-01

    Internet technologies are increasingly facilitating real-time monitoring of Bridges and Highways. The advances in wireless communications for instance, are allowing practical deployments for large extended systems. Sensor data, including video signals, can be used for long-term condition assessment, traffic-load regulation, emergency response, and seismic safety applications. Computer-based automated signal-analysis algorithms routinely process the incoming data and determine anomalies based on pre-defined response thresholds and more involved signal analysis techniques. Upon authentication, appropriate action may be authorized for maintenance, early warning, and/or emergency response. In such a strategy, data from thousands of sensors can be analyzed with near real-time and long-term assessment and decision-making implications. Addressing the above, a flexible and scalable (e.g., for an entire Highway system, or portfolio of Networked Civil Infrastructure) software architecture/framework is being developed and implemented. This framework will network and integrate real-time heterogeneous sensor data, database and archiving systems, computer vision, data analysis and interpretation, physics-based numerical simulation of complex structural systems, visualization, reliability & risk analysis, and rational statistical decision-making procedures. Thus, within this framework, data is converted into information, information into knowledge, and knowledge into decision at the end of the pipeline. Such a decision-support system contributes to the vitality of our economy, as rehabilitation, renewal, replacement, and/or maintenance of this infrastructure are estimated to require expenditures in the Trillion-dollar range nationwide, including issues of Homeland security and natural disaster mitigation. A pilot website (http://bridge.ucsd.edu/compositedeck.html) currently depicts some basic elements of the envisioned integrated health monitoring analysis framework.

  19. Architecture Diagrams: A Graphical Language for Architecture Style Specification

    Directory of Open Access Journals (Sweden)

    Anastasia Mavridou

    2016-08-01

    Full Text Available Architecture styles characterise families of architectures sharing common characteristics. We have recently proposed configuration logics for architecture style specification. In this paper, we study a graphical notation to enhance readability and easiness of expression. We study simple architecture diagrams and a more expressive extension, interval architecture diagrams. For each type of diagrams, we present its semantics, a set of necessary and sufficient consistency conditions and a method that allows to characterise compositionally the specified architectures. We provide several examples illustrating the application of the results. We also present a polynomial-time algorithm for checking that a given architecture conforms to the architecture style specified by a diagram.

  20. Chemistry of the superheavy elements.

    Science.gov (United States)

    Schädel, Matthias

    2015-03-13

    The quest for superheavy elements (SHEs) is driven by the desire to find and explore one of the extreme limits of existence of matter. These elements exist solely due to their nuclear shell stabilization. All 15 presently 'known' SHEs (11 are officially 'discovered' and named) up to element 118 are short-lived and are man-made atom-at-a-time in heavy ion induced nuclear reactions. They are identical to the transactinide elements located in the seventh period of the periodic table beginning with rutherfordium (element 104), dubnium (element 105) and seaborgium (element 106) in groups 4, 5 and 6, respectively. Their chemical properties are often surprising and unexpected from simple extrapolations. After hassium (element 108), chemistry has now reached copernicium (element 112) and flerovium (element 114). For the later ones, the focus is on questions of their metallic or possibly noble gas-like character originating from interplay of most pronounced relativistic effects and electron-shell effects. SHEs provide unique opportunities to get insights into the influence of strong relativistic effects on the atomic electrons and to probe 'relativistically' influenced chemical properties and the architecture of the periodic table at its farthest reach. In addition, they establish a test bench to challenge the validity and predictive power of modern fully relativistic quantum chemical models. © 2015 The Author(s) Published by the Royal Society. All rights reserved.

  1. Return of the Vision Video

    DEFF Research Database (Denmark)

    Vistisen, Peter; Poulsen, Søren Bolvig

    2017-01-01

    This paper examines the role of corporate vision videos as a possible setting for participation when exploring the future potentials (and pitfalls) of new technological concepts. We propose that through the recent decade’s rise web 2.0 platforms, and the viral effects of user sharing, the corporate...... vision video of today might take on a significantly different role than before, and act as a participatory design approach. This address the changing landscaping for participatory and user-involved design processes, in the wake of new digital forms of participation, communication and collaboration, which...... have radically changed the possible power dynamics of the production life cycle of new product developments. Through a case study, we pose the question of whether the online engagements around corporate vision videos can be viewed as a form of participation in a design process, and thus revitalize...

  2. A Model of Trusted Connection Architecture

    Directory of Open Access Journals (Sweden)

    Zhang Xun

    2017-01-01

    Full Text Available According to that traditional trusted network connection architecture (TNC has limitations on dynamic network environment and the user behavior support, we develop TCA to propose a trusted connection architecture supporting behavior measurement (TCA-SBM, besides, the structure diagram of network architecture is given. Through introducing user behavior measure elements, TCA-SBM can conduct measurement on the whole network in time dimension periodically, and refine the measurement on network behavior in measure dimension to conduct fine-grained dynamic trusted measurement. As a result, TCA-SBM enhances the TCA’s ability to adapt to the dynamic change of network and makes up the deficiency of trusted computing framework in the network connection.

  3. Framework for the Parametric System Modeling of Space Exploration Architectures

    Science.gov (United States)

    Komar, David R.; Hoffman, Jim; Olds, Aaron D.; Seal, Mike D., II

    2008-01-01

    This paper presents a methodology for performing architecture definition and assessment prior to, or during, program formulation that utilizes a centralized, integrated architecture modeling framework operated by a small, core team of general space architects. This framework, known as the Exploration Architecture Model for IN-space and Earth-to-orbit (EXAMINE), enables: 1) a significantly larger fraction of an architecture trade space to be assessed in a given study timeframe; and 2) the complex element-to-element and element-to-system relationships to be quantitatively explored earlier in the design process. Discussion of the methodology advantages and disadvantages with respect to the distributed study team approach typically used within NASA to perform architecture studies is presented along with an overview of EXAMINE s functional components and tools. An example Mars transportation system architecture model is used to demonstrate EXAMINE s capabilities in this paper. However, the framework is generally applicable for exploration architecture modeling with destinations to any celestial body in the solar system.

  4. Advances in embedded computer vision

    CERN Document Server

    Kisacanin, Branislav

    2014-01-01

    This illuminating collection offers a fresh look at the very latest advances in the field of embedded computer vision. Emerging areas covered by this comprehensive text/reference include the embedded realization of 3D vision technologies for a variety of applications, such as stereo cameras on mobile devices. Recent trends towards the development of small unmanned aerial vehicles (UAVs) with embedded image and video processing algorithms are also examined. The authoritative insights range from historical perspectives to future developments, reviewing embedded implementation, tools, technolog

  5. Visioning future emergency healthcare collaboration

    DEFF Research Database (Denmark)

    Söderholm, Hanna M.; Sonnenwald, Diane H.

    2010-01-01

    physicians, nurses, administrators, and information technology (IT) professionals working at large and small medical centers, and asked them to share their perspectives regarding 3DMC's potential benefits and disadvantages in emergency healthcare and its compatibility and/or lack thereof...... care in real time. Today only an early prototype of 3DMC exists. To better understand 3DMC's potential for adoption and use in emergency healthcare before large amounts of development resources are invested we conducted a visioning study. That is, we shared our vision of 3DMC with emergency room...

  6. the evaluation of vision in children using monocular vision acuity ...

    African Journals Online (AJOL)

    early vision screening for strabismus and amblyopia ... unsuccessful. This is due to the child's inability to cooperate during eye examination; resulting to insufficient time for the test and inaccuracy of the test results. However ... between preschool and school aged children with reduced V.A (Z = 1.047, Z = 3.84). It is thus ...

  7. Towards a cognitive definition of colour vision

    OpenAIRE

    Peter Skorupski; Lars Chittka

    2008-01-01

    In recent years, colour vision abilities have been rather generously awarded to vari-ous invertebrates and even bacteria. This uncertainty of when to diagnose colour vi-sion stems in part from confusing what colour vision can do with what it is. What col-our vision can do is discriminate wavelength independent of intensity. However, if we take this as a definition of what colour vision is, then we might indeed be obliged to conclude that some plants and bacteria have colour vision. Moreover, ...

  8. Travels in Architectural History

    Directory of Open Access Journals (Sweden)

    Davide Deriu

    2016-11-01

    Full Text Available Travel is a powerful force in shaping the perception of the modern world and plays an ever-growing role within architectural and urban cultures. Inextricably linked to political and ideological issues, travel redefines places and landscapes through new transport infrastructures and buildings. Architecture, in turn, is reconstructed through visual and textual narratives produced by scores of modern travellers — including writers and artists along with architects themselves. In the age of the camera, travel is bound up with new kinds of imaginaries; private records and recollections often mingle with official, stereotyped views, as the value of architectural heritage increasingly rests on the mechanical reproduction of its images. Whilst students often learn about architectural history through image collections, the place of the journey in the formation of the architect itself shifts. No longer a lone and passionate antiquarian or an itinerant designer, the modern architect eagerly hops on buses, trains, and planes in pursuit of personal as well as professional interests. Increasingly built on a presumption of mobility, architectural culture integrates travel into cultural debates and design experiments. By addressing such issues from a variety of perspectives, this collection, a special 'Architectural Histories' issue on travel, prompts us to rethink the mobile conditions in which architecture has historically been produced and received.

  9. Avionics Architecture for Exploration Project

    Data.gov (United States)

    National Aeronautics and Space Administration — The Avionics Architectures for Exploration Project team will develop a system level environment and architecture that will accommodate equipment from multiple...

  10. Integrated Data Assimilation Architecture Project

    Data.gov (United States)

    National Aeronautics and Space Administration — The Integrated Data Assimilation Architecture (IDAA) is a middleware architecture that facilitates the incorporation of heterogeneous sensing and control devices...

  11. On Detailing in Contemporary Architecture

    DEFF Research Database (Denmark)

    Kristensen, Claus; Kirkegaard, Poul Henning

    2010-01-01

    Details in architecture have a significant influence on how architecture is experienced. One can touch the materials and analyse the detailing - thus details give valuable information about the architectural scheme as a whole. The absence of perceptual stimulation like details and materiality...... / tactility can blur the meaning of the architecture and turn it into an empty statement. The present paper will outline detailing in contemporary architecture and discuss the issue with respect to architectural quality. Architectural cases considered as sublime piece of architecture will be presented...

  12. Deep Space Network information system architecture study

    Science.gov (United States)

    Beswick, C. A.; Markley, R. W. (Editor); Atkinson, D. J.; Cooper, L. P.; Tausworthe, R. C.; Masline, R. C.; Jenkins, J. S.; Crowe, R. A.; Thomas, J. L.; Stoloff, M. J.

    1992-01-01

    The purpose of this article is to describe an architecture for the DSN information system in the years 2000-2010 and to provide guidelines for its evolution during the 1990's. The study scope is defined to be from the front-end areas at the antennas to the end users (spacecraft teams, principal investigators, archival storage systems, and non-NASA partners). The architectural vision provides guidance for major DSN implementation efforts during the next decade. A strong motivation for the study is an expected dramatic improvement in information-systems technologies--i.e., computer processing, automation technology (including knowledge-based systems), networking and data transport, software and hardware engineering, and human-interface technology. The proposed Ground Information System has the following major features: unified architecture from the front-end area to the end user; open-systems standards to achieve interoperability; DSN production of level 0 data; delivery of level 0 data from the Deep Space Communications Complex, if desired; dedicated telemetry processors for each receiver; security against unauthorized access and errors; and highly automated monitor and control.

  13. INFIBRA: machine vision inspection of acrylic fiber production

    Science.gov (United States)

    Davies, Roger; Correia, Bento A. B.; Contreiras, Jose; Carvalho, Fernando D.

    1998-10-01

    This paper describes the implementation of INFIBRA, a machine vision system for the inspection of acrylic fiber production lines. The system was developed by INETI under a contract from Fisipe, Fibras Sinteticas de Portugal, S.A. At Fisipe there are ten production lines in continuous operation, each approximately 40 m in length. A team of operators used to perform periodic manual visual inspection of each line in conditions of high ambient temperature and humidity. It is not surprising that failures in the manual inspection process occurred with some frequency, with consequences that ranged from reduced fiber quality to production stoppages. The INFIBRA system architecture is a specialization of a generic, modular machine vision architecture based on a network of Personal Computers (PCs), each equipped with a low cost frame grabber. Each production line has a dedicated PC that performs automatic inspection, using specially designed metrology algorithms, via four video cameras located at key positions on the line. The cameras are mounted inside custom-built, hermetically sealed water-cooled housings to protect them from the unfriendly environment. The ten PCs, one for each production line, communicate with a central PC via a standard Ethernet connection. The operator controls all aspects of the inspection process, from configuration through to handling alarms, via a simple graphical interface on the central PC. At any time the operator can also view on the central PC's screen the live image from any one of the 40 cameras employed by the system.

  14. Selenium, selenoproteins and vision.

    Science.gov (United States)

    Flohé, Leopold

    2005-01-01

    Selenium biochemistry is reviewed in respect to its presumed relevance to age-related ocular diseases. Selenium is an essential trace element that exerts its physiological role as selenocysteine residue in at least 25 distinct selenoenzymes in mammals. Lack of GPx-1 due to alimentary selenium deprivation has been inferred to induce cataract in rats and was demonstrated to cause cataracts in mice by targeted gene disruption. The role of other selenoproteins in the eye remains to be worked out. Selenium in excess of the tiny amounts required for selenoprotein synthesis is toxic in general and causes cataracts in experimental animals. Clinical evidence for a protective role of selenium in the development of cataract, macula degeneration, retinitis pigmentosa or any other ocular disease is not available, likely because suboptimum selenium intake, as it may result from unbalanced diet, does not cause any pathologically relevant selenium deficiency in the eye. At present, there is neither theoretical nor an empirical basis to expect beneficial effects of selenium supplementation beyond the dietary reference intakes of 55 microg/day in the context of ocular diseases.

  15. A computer vision system for the recognition of trees in aerial photographs

    Science.gov (United States)

    Pinz, Axel J.

    1991-01-01

    Increasing problems of forest damage in Central Europe set the demand for an appropriate forest damage assessment tool. The Vision Expert System (VES) is presented which is capable of finding trees in color infrared aerial photographs. Concept and architecture of VES are discussed briefly. The system is applied to a multisource test data set. The processing of this multisource data set leads to a multiple interpretation result for one scene. An integration of these results will provide a better scene description by the vision system. This is achieved by an implementation of Steven's correlation algorithm.

  16. Why vision is not both hierarchical and feedforward

    Directory of Open Access Journals (Sweden)

    Michael H Herzog

    2014-10-01

    Full Text Available In classical models of object recognition, first, basic features (e.g., edges and lines are analyzed by independent filters that mimic the receptive field profiles of V1 neurons. In a feedforward fashion, the outputs of these filters are fed to filters at the next processing stage, pooling information across several filters from the previous level, and so forth at subsequent processing stages. Low-level processing determines high-level processing. Information lost on lower stages is irretrievably lost. Models of this type have proven to be very successful in many fields of vision, but have failed to explain object recognition in general. Here, we present experiments that, first, show that, similar to demonstrations from the Gestaltists, figural aspects determine low-level processing (as much as the other way around. Second, performance on a single element depends on all the other elements in the visual scene. Small changes in the overall configuration can lead to large changes in performance. Third, grouping of elements is key. Only if we know how elements group across the entire visual field, we can determine performance on individual elements, i.e., challenging the classical stereotypical filtering approach, which is at the very heart of most vision models.

  17. Quality Control by Artificial Vision

    Energy Technology Data Exchange (ETDEWEB)

    Lam, Edmond Y. [University of Hong Kong, The; Gleason, Shaun Scott [ORNL; Niel, Kurt S. [Upper Austria University of Applied Science, Engineering and Environmental Studies

    2010-01-01

    Computational technology has fundamentally changed many aspects of our lives. One clear evidence is the development of artificial-vision systems, which have effectively automated many manual tasks ranging from quality inspection to quantitative assessment. In many cases, these machine-vision systems are even preferred over manual ones due to their repeatability and high precision. Such advantages come from significant research efforts in advancing sensor technology, illumination, computational hardware, and image-processing algorithms. Similar to the Special Section on Quality Control by Artificial Vision published two years ago in Volume 17, Issue 3 of the Journal of Electronic Imaging, the present one invited papers relevant to fundamental technology improvements to foster quality control by artificial vision, and fine-tuned the technology for specific applications. We aim to balance both theoretical and applied work pertinent to this special section theme. Consequently, we have seven high-quality papers resulting from the stringent peer-reviewing process in place at the Journal of Electronic Imaging. Some of the papers contain extended treatment of the authors work presented at the SPIE Image Processing: Machine Vision Applications conference and the International Conference on Quality Control by Artificial Vision. On the broad application side, Liu et al. propose an unsupervised texture image segmentation scheme. Using a multilayer data condensation spectral clustering algorithm together with wavelet transform, they demonstrate the effectiveness of their approach on both texture and synthetic aperture radar images. A problem related to image segmentation is image extraction. For this, O'Leary et al. investigate the theory of polynomial moments and show how these moments can be compared to classical filters. They also show how to use the discrete polynomial-basis functions for the extraction of 3-D embossed digits, demonstrating superiority over Fourier

  18. Generic Integrating Business Architecture

    Directory of Open Access Journals (Sweden)

    Mihaela MURESAN

    2006-01-01

    Full Text Available The generic business architecture offers an efficient solution for the business engineering and re-engineering processes. This approach strengthen the cooperation between the main actors involved in the business architecture design and implementation, aiming at including all the significant views in a integrated model. The main goal of the development of generic business architectures is to offer a standard model for the integration of the internal processes and for a better management of the technological and informational resources of the enterprise. Such standardization has as main benefits the increase of the management quality and the efficiency in the business engineering processes.

  19. Computer architecture technology trends

    CERN Document Server

    1991-01-01

    Please note this is a Short Discount publication. This year's edition of Computer Architecture Technology Trends analyses the trends which are taking place in the architecture of computing systems today. Due to the sheer number of different applications to which computers are being applied, there seems no end to the different adoptions which proliferate. There are, however, some underlying trends which appear. Decision makers should be aware of these trends when specifying architectures, particularly for future applications. This report is fully revised and updated and provides insight in

  20. Architectural Knitted Surfaces

    DEFF Research Database (Denmark)

    Mossé, Aurélie

    2010-01-01

    WGSN reports from the Architectural Knitted Surfaces workshop recently held at ShenkarCollege of Engineering and Design, Tel Aviv, which offered a cutting-edge insight into interactive knitted surfaces. With the increasing role of smart textiles in architecture, the Architectural Knitted Surfaces...... workshop brought together architects and interior and textile designers to highlight recent developments in intelligent knitting. The five-day workshop was led by architects Ayelet Karmon and Mette Ramsgaard Thomsen, together with Amir Cang and Eyal Sheffer from the Knitting Laboratory, in collaboration...

  1. Availability of vision and tactile gating: vision enhances tactile sensitivity.

    Science.gov (United States)

    Colino, Francisco L; Lee, Ji-Hang; Binsted, Gordon

    2017-01-01

    A multitude of events bombard our sensory systems at every moment of our lives. Thus, it is important for the sensory and motor cortices to gate unimportant events. Tactile suppression is a well-known phenomenon defined as a reduced ability to detect tactile events on the skin before and during movement. Previous experiments (Buckingham et al. in Exp Brain Res 201(3):411-419, 2010; Colino et al. in Physiol Rep 2(3):e00267, 2014) found detection rates decrease just prior to and during finger abduction and decrease according to the proximity of the moving effector. However, what effect does vision have on tactile gating? There is ample evidence (see Serino and Haggard in Neurosci Biobehav Rev 34:224-236, 2010) observing increased tactile acuity when participants see their limbs. The present study examined how tactile detection changes in response to visual condition (vision/no vision). Ten human participants used their right hand to reach and grasp a cylinder. Tactors were attached to the index finger and the forearm of both the right and left arm and vibrated at various epochs relative to a "go" tone. Results replicate previous findings from our laboratory (Colino et al. in Physiol Rep 2(3):e00267, 2014). Also, tactile acuity decreased when participants did not have vision. These results indicate that the vision affects the somatosensation via inputs from parietal areas (Konen and Haggard in Cereb Cortex 24(2):501-507, 2014) but does so in a reach-to-grasp context.

  2. Architectures of prototypes and architectural prototyping

    DEFF Research Database (Denmark)

    Hansen, Klaus Marius; Christensen, Michael; Sandvad, Elmer

    1998-01-01

    This paper reports from experience obtained through development of a prototype of a global customer service system in a project involving a large shipping company and a university research group. The research group had no previous knowledge of the complex business of shipping and had never worked...... together as a team, but developed a prototype that more than fulfilled the expectations of the shipping company. The prototype should: - complete the first major phase within 10 weeks, - be highly vertical illustrating future work practice, - continuously live up to new requirements from prototyping...... sessions with users, - evolve over a long period of time to contain more functionality - allow for 6-7 developers working intensively in parallel. Explicit focus on the software architecture and letting the architecture evolve with the prototype played a major role in resolving these conflicting...

  3. Fundamentals of computer architecture and design

    CERN Document Server

    Bindal, Ahmet

    2017-01-01

    This textbook provides semester-length coverage of computer architecture and design, providing a strong foundation for students to understand modern computer system architecture and to apply these insights and principles to future computer designs.  It is based on the author’s decades of industrial experience with computer architecture and design, as well as with teaching students focused on pursuing careers in computer engineering.  Unlike a number of existing textbooks for this course, this one focuses not only on CPU architecture, but also covers in great detail in system buses, peripherals and memories.This book teaches every element in a computing system in two steps.  First, it introduces the functionality of each topic (and subtopics) and then goes into “from-scratch design” of a particular digital block from its architectural specifications using timing diagrams.  The author describes how the data-path of a certain digital block is generated using timin g diagrams, a method which most textbo...

  4. Minimalism in architecture: Abstract conceptualization of architecture

    OpenAIRE

    Vasilski Dragana

    2015-01-01

    Minimalism in architecture contains the idea of the minimum as a leading creative tend to be considered and interpreted in working through phenomena of empathy and abstraction. In the Western culture, the root of this idea is found in empathy of Wilhelm Worringer and abstraction of Kasimir Malevich. In his dissertation, 'Abstraction and Empathy' Worringer presented his thesis on the psychology of style through which he explained the two opposing basic forms: abstraction and empathy. His concl...

  5. Polarization Imaging and Insect Vision

    Science.gov (United States)

    Green, Adam S.; Ohmann, Paul R.; Leininger, Nick E.; Kavanaugh, James A.

    2010-01-01

    For several years we have included discussions about insect vision in the optics units of our introductory physics courses. This topic is a natural extension of demonstrations involving Brewster's reflection and Rayleigh scattering of polarized light because many insects heavily rely on optical polarization for navigation and communication.…

  6. Vision - Gateway to the brain

    CERN Multimedia

    1999-01-01

    Is the brain the result of (evolutionary) tinkering, or is it governed by natural law? How can we objectively know? What is the nature of consciousness? Vision research is spear-heading the quest and is making rapid progress with the help of new experimental, computational and theoretical tools. At the same time it is about to lead to important technical applications.

  7. Computer Vision and Mathematical Morphology

    NARCIS (Netherlands)

    Roerdink, J.B.T.M.; Kropratsch, W.; Klette, R.; Albrecht, R.

    1996-01-01

    Mathematical morphology is a theory of set mappings, modeling binary image transformations, which are invariant under the group of Euclidean translations. This framework turns out to be too restricted for many applications, in particular for computer vision where group theoretical considerations

  8. Frame Rate and Human Vision

    Science.gov (United States)

    Watson, Andrew B.

    2012-01-01

    To enhance the quality of the theatre experience, the film industry is interested in achieving higher frame rates for capture and display. In this talk I will describe the basic spatio-temporal sensitivities of human vision, and how they respond to the time sequence of static images that is fundamental to cinematic presentation.

  9. Visioning Public Education in America.

    Science.gov (United States)

    Reigeluth, Charles M.

    1999-01-01

    Discusses a process in which stakeholders in a community can engage to advance their thinking about beliefs regarding education and ideal visions of education, as a first step toward educational reform. Also presents some beliefs about education that include the roles of students, teachers, parents, administration, and the community. (LRW)

  10. Real-time vision systems

    Energy Technology Data Exchange (ETDEWEB)

    Johnson, R.; Hernandez, J.E.; Lu, Shin-yee [Lawrence Livermore National Lab., CA (United States)

    1994-11-15

    Many industrial and defence applications require an ability to make instantaneous decisions based on sensor input of a time varying process. Such systems are referred to as `real-time systems` because they process and act on data as it occurs in time. When a vision sensor is used in a real-time system, the processing demands can be quite substantial, with typical data rates of 10-20 million samples per second. A real-time Machine Vision Laboratory (MVL) was established in FY94 to extend our years of experience in developing computer vision algorithms to include the development and implementation of real-time vision systems. The laboratory is equipped with a variety of hardware components, including Datacube image acquisition and processing boards, a Sun workstation, and several different types of CCD cameras, including monochrome and color area cameras and analog and digital line-scan cameras. The equipment is reconfigurable for prototyping different applications. This facility has been used to support several programs at LLNL, including O Division`s Peacemaker and Deadeye Projects as well as the CRADA with the U.S. Textile Industry, CAFE (Computer Aided Fabric Inspection). To date, we have successfully demonstrated several real-time applications: bullet tracking, stereo tracking and ranging, and web inspection. This work has been documented in the ongoing development of a real-time software library.

  11. SOFIA Update and Science Vision

    Science.gov (United States)

    Smith, Kimberly

    2017-01-01

    I will present an overview of the SOFIA program, its science vision and upcoming plans for the observatory. The talk will feature several scientific highlights since full operations, along with summaries of planned science observations for this coming year, platform enhancements and new instrumentation.

  12. Chandra's X-ray Vision

    Indian Academy of Sciences (India)

    1999-07-23

    Jul 23, 1999 ... GENERAL I ARTICLE. Chandra's X-ray Vision. K P Singh. Chandra X-ray Observatory (CXO) is a scientific satellite (moon/ chandra), named after the Indian-born Nobel laureate. Subrahmanyan Chandrasekhar - one of the foremost astro- physicists of the twentieth century and popularly known as. Chandra.

  13. Smart Material Interfaces: A vision

    NARCIS (Netherlands)

    Minuto, A.; Vyas, Dhaval; Poelman, Wim; Nijholt, Antinus; Camurri, Antonio; Costa, Cristine

    In this paper, we introduce a vision called Smart Material Interfaces (SMIs), which takes advantage of the latest generation of engineered materials that has a special property defined “smart‿. They are capable of changing their physical properties, such as shape, size and color, and can be

  14. Standards for vision science libraries

    OpenAIRE

    2000-01-01

    The minimum levels of staffing, services, budget, and technology that should be provided by a library specializing in vision science are presented. The scope and coverage of the collection is described as well. These standards may be used by institutions establishing libraries or by accrediting bodies reviewing existing libraries.

  15. Progress in color night vision

    NARCIS (Netherlands)

    Toet, A.; Hogervorst, M.A.

    2012-01-01

    We present an overview of our recent progress and the current state-of-the-art techniques of color image fusion for night vision applications. Inspired by previously developed color opponent fusing schemes, we initially developed a simple pixel-based false color-mapping scheme that yielded fused

  16. North American Natural Gas Vision

    Science.gov (United States)

    2005-01-01

    Pemex Comercio Internacional (Pemex International), responsible for international trade. 30 North American Natural Gas Vision In 1995, the...important, running for 710 km from Ciudad Pemex to Mérida in the Yucatan Peninsula. It was built to provide natural gas to the Mérida III combined cycle

  17. Analysis of Architecture Pattern Usage in Legacy System Architecture Documentation

    NARCIS (Netherlands)

    Harrison, Neil B.; Avgeriou, Paris

    2008-01-01

    Architecture patterns are an important tool in architectural design. However, while many architecture patterns have been identified, there is little in-depth understanding of their actual use in software architectures. For instance, there is no overview of how many patterns are used per system or

  18. Visions of Vision: An Exploratory Study of the Role College and University Presidents Play in Developing Institutional Vision

    Science.gov (United States)

    McWade, Jessica C.

    2014-01-01

    This qualitative research explores how college and university presidents engage in the process of developing formal institutional vision. The inquiry identifies roles presidents play in vision development, which is often undertaken as part of strategic-planning initiatives. Two constructs of leadership and institutional vision are used to examine…

  19. A Reference Stack for PHM Architectures

    Science.gov (United States)

    2014-10-02

    ontology , the BCA should investigate existing ontologies in the organization and look to expand them with PHM terminology . Barring that, the effort needs...3.3.2. 2.7. Condition Monitoring Framework Another way to partition a PHM architecture is by its ontological elements. There is a description and...building a table such as Table 1 creates the PHM ontology for an enterprise. In the stack that is introduced in Section 3, it is viewed that the

  20. IDD Archival Hardware Architecture and Workflow

    Energy Technology Data Exchange (ETDEWEB)

    Mendonsa, D; Nekoogar, F; Martz, H

    2008-10-09

    This document describes the functionality of every component in the DHS/IDD archival and storage hardware system shown in Fig. 1. The document describes steps by step process of image data being received at LLNL then being processed and made available to authorized personnel and collaborators. Throughout this document references will be made to one of two figures, Fig. 1 describing the elements of the architecture and the Fig. 2 describing the workflow and how the project utilizes the available hardware.

  1. Project Integration Architecture: Formulation of Semantic Parameters

    Science.gov (United States)

    Jones, William Henry

    2005-01-01

    One of several key elements of the Project Integration Architecture (PIA) is the intention to formulate parameter objects which convey meaningful semantic information. In so doing, it is expected that a level of automation can be achieved in the consumption of information content by PIA-consuming clients outside the programmatic boundary of a presenting PIA-wrapped application. This paper discusses the steps that have been recently taken in formulating such semantically-meaningful parameters.

  2. The Architecture Of Towers In Uzbekistan Heritage

    OpenAIRE

    Yaxyayev Abdulla Abdujabbamp1072rovich

    2015-01-01

    In the town planning since the ancient periods emphasizing to the vertical elements had the certain role. Thats why the gates of the city the buildings on the main square were built with high and gigantic form. The zikkurat on the silhouettes of the city and other settlements and other structures like the tower form the balance of the composition. Today in the architecture are given the great importance the creation of vertical compositions for leaving of the biodiversity. The purpose of this...

  3. Agility: Agent - Ility Architecture

    National Research Council Canada - National Science Library

    Thompson, Craig

    2002-01-01

    ...., object and web technologies). The objective of the Agility project is to develop an open agent grid architecture populated with scalable, deployable, industrial strength agent grid components, targeting the theme 'agents for the masses...

  4. SERVICE ORIENTED ARCHITECTURE

    Directory of Open Access Journals (Sweden)

    Stanculea Liana

    2009-05-01

    Full Text Available Service-oriented architecture (SOA supply methods for systems development and integration where work interoperable services. A SOA suppose application functionality distribution in distinct units called services that communicate with each other. This ser

  5. Service Modularity and Architecture

    DEFF Research Database (Denmark)

    Brax, Saara A.; Bask, Anu; Hsuan, Juliana

    2017-01-01

    , platform-based and mass-customized service business models, comparative research designs, customer perspectives and service experience, performance in context of modular services, empirical evidence of benefits and challenges, architectural innovation in services, modularization in multi-provider contexts...

  6. Border information flow architecture

    Science.gov (United States)

    2006-04-01

    This brochure describes the Border Information Flow Architecture (BIFA). The Transportation Border Working Group, a bi-national group that works to enhance coordination and planning between the United States and Canada, identified collaboration on th...

  7. Bionics in architecture

    Directory of Open Access Journals (Sweden)

    Sugár Viktória

    2017-04-01

    Full Text Available The adaptation of the forms and phenomena of nature is not a recent concept. Observation of natural mechanisms has been a primary source of innovation since prehistoric ages, which can be perceived through the history of architecture. Currently, this idea is coming to the front again through sustainable architecture and adaptive design. Investigating natural innovations and the clear-outness of evolution during the 20th century led to the creation of a separate scientific discipline, Bionics. Architecture and Bionics are strongly related to each other, since the act of building is as old as the human civilization - moreover its first formal and structural source was obviously the surrounding environment. Present paper discusses the definition of Bionics and its connection with the architecture.

  8. Architecture and Energy

    DEFF Research Database (Denmark)

    Lauring, Michael; Marsh, Rob

    2009-01-01

    Architecture and Energy. Strategies for a Changing Climate. By Michael Lauring and Rob Marsh INTENT AND PURPOSE. The paper aims to further integrated design of low energy buildings with high architectural quality. A precondition for qualified integrated design is a holistic approach...... and on the related architectural aspects: Building depths, spatial organization, daylight, natural ventilation and solar cells [1]. In order to get a truer, well-focused perception of how to design sustainable buildings, one needs to know basically what is more and what is less important among all the energy......, and where the transition from an industrial to an information- or knowledge-based society is well-developed. The last three decades of the 20th century show many conscientious - both governmental and architectural - Danish attempts at creating buildings with lower heat consumption. The lower U...

  9. Thermal Space in Architecture

    DEFF Research Database (Denmark)

    Petersen, Mads Dines

    Present research is revolving around the design process and the use of digital applications to support the design process among architects. This work is made in relation to the current discussions about sustainable architecture and the increased focus on energy consumption and the comfort in our...... and understanding of spaces in buildings can change significantly and instead of the creation of frozen geometrical spaces, thermal spaces can be created as it is suggested in meteorological architecture where functions are distributed in relation to temperature gradients. This creates an interesting contrast......-introducing an increased adaptability in the architecture can be a part of re-defining the environmental agenda and re-establish a link between the environment of the site and the environment of the architecture and through that an increased appreciation of the sensuous space here framed in discussions about thermal...

  10. Performative Urban Architecture

    DEFF Research Database (Denmark)

    Thomsen, Bo Stjerne; Jensen, Ole B.

    The paper explores how performative urban architecture can enhance community-making and public domain using socio-technical systems and digital technologies to constitute an urban reality. Digital medias developed for the web are now increasingly occupying the urban realm as a tool for navigating...... using sensor technologies opening up for new access considerations in architecture as well as the ability for a local environment to act as real-time sources of information and facilities. Starting from the NoRA pavilion for the 10th International Architecture Biennale in Venice the paper discusses...... couple relationships between architecture, humans and society. These performative relationships between digital and physical environments are seen as illustrative of the social production of space by performance and the creative production of identity. The paper reflects on the perspectives...

  11. Layered Fault Management Architecture

    National Research Council Canada - National Science Library

    Sztipanovits, Janos

    2004-01-01

    ... UAVs or Organic Air Vehicles. The approach of this effort was to analyze fault management requirements of formation flight for fleets of UAVs, and develop a layered fault management architecture which demonstrates significant...

  12. Adaptive Architectural Envelope

    DEFF Research Database (Denmark)

    Foged, Isak Worre; Kirkegaard, Poul Henning

    2010-01-01

    . The general scopes of this paper are to develop a new adaptive kinetic architectural structure, particularly a reconfigurable architectural structure which can transform body shape from planar geometries to hyper-surfaces using different control strategies, i.e. a transformation into more than one or two......Recent years have seen an increasing variety of applications of adaptive architectural structures for improvement of structural performance by recognizing changes in their environments and loads, adapting to meet goals, and using past events to improve future performance or maintain serviceability...... different shape alternatives. The adaptive structure is a proposal for a responsive building envelope which is an idea of a first level operational framework for present and future investigations towards performance based responsive architectures through a set of responsive typologies. A mock- up concept...

  13. The toolbus coordination architecture

    NARCIS (Netherlands)

    Bergstra, J.A.; Klint, P.

    1996-01-01

    Building large, heterogeneous, distributed software systems poses serious problems for the software engineer; achieving interoperability of software systems is still a major challenge. We describe an experiment in designing a generic software architecture for solving these problems. To get

  14. DSP Architecture Design Essentials

    CERN Document Server

    Marković, Dejan

    2012-01-01

    In DSP Architecture Design Essentials, authors Dejan Marković and Robert W. Brodersen cover a key subject for the successful realization of DSP algorithms for communications, multimedia, and healthcare applications. The book addresses the need for DSP architecture design that maps advanced DSP algorithms to hardware in the most power- and area-efficient way. The key feature of this text is a design methodology based on a high-level design model that leads to hardware implementation with minimum power and area. The methodology includes algorithm-level considerations such as automated word-length reduction and intrinsic data properties that can be leveraged to reduce hardware complexity. From a high-level data-flow graph model, an architecture exploration methodology based on linear programming is used to create an array of architectural solutions tailored to the underlying hardware technology. The book is supplemented with online material: bibliography, design examples, CAD tutorials and custom software.

  15. The different forms of representation and its implications in architecture

    Directory of Open Access Journals (Sweden)

    José Leonardo Prieto Fandiño

    2015-01-01

    Full Text Available The intentions to communicate and transform reality formulated by human beings are based on intangible ideas and networks that they weave around themselves. These ideas are doomed to remain trapped in the mind that conceived them; only through a materializing act the human being is able to communicate his vision of reality to others. This transition to the material world, which involves an attack on the sharpness of the idea, is known as “representation”. These processes, which in any discipline of human epistemology have specific details, in architecture are absolutely crucial. When the architect chooses, instead of another, a specific mode of representing his architectural logos, he is invoking specific perceptual processes which will not be mere shadows of a possible view of architecture but, despite the obvious imperfect materiality, they will be an indissoluble part of his work as well asthe way in which it will be experienced by others.

  16. Instant urbanism and the politics of mobile architecture

    DEFF Research Database (Denmark)

    Pinder, David

    2017-01-01

    on mobility and flexibility, and to consider the ways in which their visions of mobile architecture and cities were opposed to dominant spatial structures and imbued with emancipatory intent. However, through engaging with critical debates at the time, including those involving Henri Lefebvre and the group......Demands to mobilise architecture and urban space have become increasingly common in recent years, as part of discourses and practices of temporary use and instant urbanism. These approaches put an accent on mobility, flexibility, spontaneity and improvisation. Contemporary commentators...... and practitioners often acknowledge the influence in this regard of earlier avant-garde architectural experimentation from the 1960s, involving among others Archigram, Yona Friedman, Constant and the situationists. This paper returns to such earlier projects to explore further the implications of their emphasis...

  17. Early Parkinson's May Prompt Vision Problems

    Science.gov (United States)

    ... https://medlineplus.gov/news/fullstory_167131.html Early Parkinson's May Prompt Vision Problems Changes in sight could ... in vision may be an early sign of Parkinson's disease, researchers report. The neurodegenerative condition is caused ...

  18. Vision Problems Can Harm Kids' Development, Grades

    Science.gov (United States)

    ... page: https://medlineplus.gov/news/fullstory_167475.html Vision Problems Can Harm Kids' Development, Grades Eye experts ... toll on children's school performance and well-being, vision experts say. If left untreated, certain eye-related ...

  19. Computer vision – cloud, smart or both

    OpenAIRE

    Chatwin, Chris; Young, Rupert; Birch, Philip; BangaloreManjunathamurthy, Nagachetan; Hassan, Waqas

    2012-01-01

    Bandwidth management and availability is going to improve greatly.The Cloud will become increasingly important for security and computer vision. Integration of Satellite, Fibre, Wireless. Impacts where you do the Computer Vision

  20. Computer vision and machine learning for archaeology

    NARCIS (Netherlands)

    van der Maaten, L.J.P.; Boon, P.; Lange, G.; Paijmans, J.J.; Postma, E.

    2006-01-01

    Until now, computer vision and machine learning techniques barely contributed to the archaeological domain. The use of these techniques can support archaeologists in their assessment and classification of archaeological finds. The paper illustrates the use of computer vision techniques for