WorldWideScience

Sample records for play digital imagery

  1. Coastal California Digital Imagery

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This digital ortho-imagery dataset is a survey of coastal California. The project area consists of approximately 3774 square miles. The project design of the digital...

  2. Visual thinking & digital imagery

    OpenAIRE

    Blevis, Eli; Churchill, Elizabeth; Odom, William; Pierre, James; Roedl, David; Wakkary, Ron

    2012-01-01

    This workshop focuses on exploring the centrality of visual literacy and visual thinking to HCI. Drawing on emerging critical perspectives, the workshop will address visual literacy and visual thinking from an interdisciplinary and transdisciplinary design-orientation [2, 8], foregrounding the notion that imagery is a primary form of visual thinking. Imagery—which subsumes digital imagery—goes well beyond sketching and beyond storyboards, screenshots and wireframes. We will address how a broa...

  3. Playing with a digital swing

    DEFF Research Database (Denmark)

    Skovbjerg, Helle Marie

    2017-01-01

    Based on a field study in a kindergarten among children in Denmark, this paper explores playing activities on a digital swing, the SON-X Octavia (SON-X) and its Applause application. SON-X is an interactive sound unit that can be attached to any swing chain. Here, I explore the relationship betwe...

  4. Digital elevation modelling using ASTER stereo imagery.

    Science.gov (United States)

    Forkuo, Eric Kwabena

    2010-04-01

    Digital elevation model (DEM) in recent times has become an integral part of national spatial data infrastructure of many countries world-wide due to its invaluable importance. Although DEMs are mostly generated from contours maps, stereo aerial photographs and air-borne and terrestrial laser scanning, the stereo interpretation and auto-correlation from satellite image stereo-pairs such as with SPOT, IRS, and relatively new ASTER imagery is also an effective means of producing DEM data. In this study, terrain elevation data were derived by applying photogrammetric process to ASTER stereo imagery. Also, the quality ofDEMs produced from ASTER stereo imagery was analysed by comparing it with DEM produced from topographic map at a scale of 1:50,000. While analyzing the vertical accuracy of the generated ASTER DEM, fifty ground control points were extracted from the map and overlaid on the DEM. Results indicate that a root-mean-square error in elevation of +/- 14 m was achieved with ASTER stereo image data of good quality. The horizontal accuracy obtained from the ground control points was 14.77, which is within the acceptable range of +/- 7m to +/- 25 m. The generated (15 m) DEM was compared with a 20m, 25m, and a 30 m pixel DEM to the original map. In all, the results proved that, the 15 m DEM conform to the original map DEM than the others. Overall, this analysis proves that, the generated digital terrain model, DEM is acceptable.

  5. National Agriculture Imagery Program (NAIP) Digital Ortho Imagery for Bent's Old Fort National Historic Site Vegetation Mapping Project

    Data.gov (United States)

    National Park Service, Department of the Interior — This data set contains imagery from the National Agriculture Imagery Program (NAIP). NAIP acquires digital ortho imagery during the agricultural growing seasons in...

  6. Seductive play in digital games

    DEFF Research Database (Denmark)

    Jørgensen, Ida Kathrine Hammeleff

    2015-01-01

    seduction is meaningless because it is nothing but appearances – a sign without reference. In his conceptualization of seduction Baudrillard draws heavily upon Huizinga’s (1950) and Callois’ (1961) theory of play. To Baudrillard play is the mode of the seductive. But in contrast to both Callois and Huizinga...

  7. Digital Play: A New Classification

    Science.gov (United States)

    Marsh, Jackie; Plowman, Lydia; Yamada-Rice, Dylan; Bishop, Julia; Scott, Fiona

    2016-01-01

    This paper draws on an ESRC-funded study of play and creativity in preschool-aged children's use of apps in the UK. The main objectives of the study were to collect information about access to and use of apps in the home, establish the most popular apps and identify the features of those apps that are successful in promoting play and creativity. A…

  8. Massachusetts Bay - Internal wave packets digitized from SAR imagery

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This feature class contains internal wave packets digitized from SAR imagery at 1:350,000 scale in Massachusetts Bay. Internal waves are nonsinusoidal waves that...

  9. Application of digital image processing techniques to astronomical imagery 1977

    Science.gov (United States)

    Lorre, J. J.; Lynn, D. J.

    1978-01-01

    Nine specific techniques of combination of techniques developed for applying digital image processing technology to existing astronomical imagery are described. Photoproducts are included to illustrate the results of each of these investigations.

  10. Smart tools manage digital imagery access and workflow

    Science.gov (United States)

    Buzi, Miriam; LaFramboise, William A.

    2000-05-01

    Lockheed Martin's Intelligent Library System (ILS)TM imagery management solution was originally developed for users and distributors of Earth imagery emanating from commercial remote sensing satellites or aircraft. The product is a total hardware and software solution comprised of two main components: SmartArchiverTM digital asset management system and SmartAnalystTM imagery exploration tools. While investigating the latest technologies and developing Intelligent Library System (ILS)TM as a state-of-the-art system, we realized SmartArchiver systems offered robust functionality not available elsewhere for handling large medical imagery files. The SmartArchiver system's features answer the following needs of medical imagery handling: smooth handling of large individual imagery files; easy access to specific imagery or types of imagery; cost-effective storage of historical data and protection of imagery over time; ability to grow an archive to thousands of terabytes; distribution from a central archive to multiple viewing sites; varying levels of resolutions requirements at the viewing stations; strict multi-level security adherence; and automated workflow management. In this paper we detail the features of the system and how they apply to medical imagery management. We also describe how a medical application can be served by the SmartArchiver asset management system.

  11. On the playful use of digital media

    DEFF Research Database (Denmark)

    Cermak, Daniel

    2016-01-01

    Daniel Cermak-Sassenrath. On the playful use of digital media. Invited article (formatted as an interview). In: Goethe-Institut, Brasil. Games of the South, 2016. Available online, https://www.goethe.de/ins/br/en/kul/sup/sds/sud/20824177.html.......Daniel Cermak-Sassenrath. On the playful use of digital media. Invited article (formatted as an interview). In: Goethe-Institut, Brasil. Games of the South, 2016. Available online, https://www.goethe.de/ins/br/en/kul/sup/sds/sud/20824177.html....

  12. On the playful use of digital media

    DEFF Research Database (Denmark)

    Cermak, Daniel

    2016-01-01

    Daniel Cermak-Sassenrath. On the playful use of digital media. Invited article (formatted as an interview). In: Goethe-Institut, Brasil. Games of the South, 2016. Available online, https://www.goethe.de/ins/br/en/kul/sup/sds/sud/20824177.html.......Daniel Cermak-Sassenrath. On the playful use of digital media. Invited article (formatted as an interview). In: Goethe-Institut, Brasil. Games of the South, 2016. Available online, https://www.goethe.de/ins/br/en/kul/sup/sds/sud/20824177.html....

  13. Learning by Playing with Digital Technology

    DEFF Research Database (Denmark)

    Benjaminsen, Nana

    2006-01-01

    This paper presupposes the notion that there is potential for the integration of play into primary and secondary school activities, because it can stimulate and support the formal as well as informal learning that takes place in school. Digital technology could be a driver for this integration...... Construction Games in Schools. The project is an exploration of how elements of play can be integrated in a technology-based learning environment. I will use examples of empirical data gathered during spring 2006 to demonstrate that play can function as a useful learning strategy, and also point out barriers...... for the integration of play in schools, because play activities conflict with the existing school structure on a fundamental level. The paper will end with a discussion where I question what type of learning environment the play oriented product Lego Robolab generates, and explore how play as a part of a learning...

  14. Viking image processing. [digital stereo imagery and computer mosaicking

    Science.gov (United States)

    Green, W. B.

    1977-01-01

    The paper discusses the camera systems capable of recording black and white and color imagery developed for the Viking Lander imaging experiment. Each Viking Lander image consisted of a matrix of numbers with 512 rows and an arbitrary number of columns up to a maximum of about 9,000. Various techniques were used in the processing of the Viking Lander images, including: (1) digital geometric transformation, (2) the processing of stereo imagery to produce three-dimensional terrain maps, and (3) computer mosaicking of distinct processed images. A series of Viking Lander images is included.

  15. Learning by Playing with Digital Technology

    DEFF Research Database (Denmark)

    Benjaminsen, Nana

    2006-01-01

    Construction Games in Schools. The project is an exploration of how elements of play can be integrated in a technology-based learning environment. I will use examples of empirical data gathered during spring 2006 to demonstrate that play can function as a useful learning strategy, and also point out barriers...... strategy might lead to changes on three interrelated levels: the teaching material, the educational context (i.e. teaching style, use of the physical facilities and schools organisational structure) and the cultural-historical way schools function within Danish in society.......This paper presupposes the notion that there is potential for the integration of play into primary and secondary school activities, because it can stimulate and support the formal as well as informal learning that takes place in school. Digital technology could be a driver for this integration...

  16. Digital Watermarking of Autonomous Vehicles Imagery and Video Communication

    Science.gov (United States)

    2005-10-01

    sequence into the spatial and spectral on a variety of forms including digital audio , video and domains respectively. imagery. The data or signatures which...is also referred to as data hiding or steganography . Data hiding, if used as a means for covert communications, may require a heavier embedding...on the application, this process is also referred to as data hiding or steganography . Data hiding, if used as a means for covert communications, may

  17. Aerial Photography and Imagery, Ortho-Corrected - 2013 Digital Orthophotos - Franklin County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This metadata describes the digital ortho imagery covering Franklin County, FL. This 1"=200' scale imagery is comprised of 24 bit natural color orthophotography with...

  18. Aerial Photography and Imagery, Ortho-Corrected - 2013 Digital Orthophotos - Liberty County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This metadata describes the digital ortho imagery covering Liberty County, FL. This 1"=200' scale imagery is comprised of 24 bit natural color orthophotography with...

  19. Aerial Photography and Imagery, Ortho-Corrected - 2010 Digital Orthophotos - Liberty County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This metadata describes the digital ortho imagery covering Liberty County, FL. This 1"=200' scale imagery is comprised of natural color orthophotography with a GSD...

  20. Aerial Photography and Imagery, Ortho-Corrected - 2008 Digital Orthophotos - Lake County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This metadata describes the digital ortho imagery for Lake County, FL. This 1":100' scale imagery is comprised of natural color orthophotography with a GSD (Ground...

  1. Aerial Photography and Imagery, Ortho-Corrected - 2013 Digital Orthophotos - Calhoun County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This metadata describes the digital ortho imagery covering Calhoun and Gulf Counties, FL. This 1"=200' scale imagery is comprised of natural color orthoimagery with...

  2. Aerial Photography and Imagery, Ortho-Corrected - 2010 Digital Orthophotos - Franklin County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This metadata describes the digital ortho imagery covering Franklin County, FL. This 1"=200' scale imagery is comprised of natural color orthophotography with a GSD...

  3. Aerial Photography and Imagery, Ortho-Corrected - 2010 Digital Orthophotos - Gulf County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This metadata describes the digital ortho imagery covering Gulf County, FL. This 1"=200' scale imagery is comprised of natural color orthophotography with a GSD...

  4. Aerial Photography and Imagery, Ortho-Corrected - 2009 Digital Orthophotos - Bradford County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This metadata describes the digital ortho imagery covering Bradford County, FL. This 1"=200' scale imagery is comprised of natural color orthophotography with a GSD...

  5. Aerial Photography and Imagery, Ortho-Corrected - 2009 Digital Orthophotos - Glades County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This metadata describes the digital ortho imagery covering Glades County, FL. This 1":200' scale imagery is comprised of natural color orthophotography with a GSD...

  6. Aerial Photography and Imagery, Ortho-Corrected - 2013 Digital Orthophotos - Gulf County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This metadata describes the digital ortho imagery covering Calhoun and Gulf Counties, FL. This 1"=200' scale imagery is comprised of natural color orthoimagery with...

  7. Aerial Photography and Imagery, Ortho-Corrected - 2008 Digital Orthophotos - HIghlands County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This metadata describes the digital ortho imagery for Highlands County, FL. This 1":100' scale imagery is comprised of natural color orthophotography with a GSD...

  8. Aerial Photography and Imagery, Ortho-Corrected - 2010 Digital Orthophotos - Calhoun County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This metadata describes the digital ortho imagery covering Calhoun County, FL. This 1"=200' scale imagery is comprised of natural color orthophotography with a GSD...

  9. Aerial Photography and Imagery, Ortho-Corrected - 2010 Digital Orthophotos - Union County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This metadata describes the digital ortho imagery covering Union County, FL. This 1"=200' scale imagery is comprised of natural color orthophotography with a GSD...

  10. Aerial Photography and Imagery, Ortho-Corrected - 2008 Digital Orthophotos - Glades County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This metadata describes the digital ortho imagery covering Glades and Hendry Counties, FL. This 1":200' scale imagery is comprised of natural color orthophotography...

  11. High Resolution Airborne Digital Imagery for Precision Agriculture

    Science.gov (United States)

    Herwitz, Stanley R.

    1998-01-01

    The Environmental Research Aircraft and Sensor Technology (ERAST) program is a NASA initiative that seeks to demonstrate the application of cost-effective aircraft and sensor technology to private commercial ventures. In 1997-98, a series of flight-demonstrations and image acquisition efforts were conducted over the Hawaiian Islands using a remotely-piloted solar- powered platform (Pathfinder) and a fixed-wing piloted aircraft (Navajo) equipped with a Kodak DCS450 CIR (color infrared) digital camera. As an ERAST Science Team Member, I defined a set of flight lines over the largest coffee plantation in Hawaii: the Kauai Coffee Company's 4,000 acre Koloa Estate. Past studies have demonstrated the applications of airborne digital imaging to agricultural management. Few studies have examined the usefulness of high resolution airborne multispectral imagery with 10 cm pixel sizes. The Kodak digital camera integrated with ERAST's Airborne Real Time Imaging System (ARTIS) which generated multiband CCD images consisting of 6 x 106 pixel elements. At the designated flight altitude of 1,000 feet over the coffee plantation, pixel size was 10 cm. The study involved the analysis of imagery acquired on 5 March 1998 for the detection of anomalous reflectance values and for the definition of spectral signatures as indicators of tree vigor and treatment effectiveness (e.g., drip irrigation; fertilizer application).

  12. Validation of Orthorectified Interferometric Radar Imagery and Digital Elevation Models

    Science.gov (United States)

    Smith Charles M.

    2004-01-01

    This work was performed under NASA's Verification and Validation (V&V) Program as an independent check of data supplied by EarthWatch, Incorporated, through the Earth Science Enterprise Scientific Data Purchase (SDP) Program. This document serves as the basis of reporting results associated with validation of orthorectified interferometric interferometric radar imagery and digital elevation models (DEM). This validation covers all datasets provided under the first campaign (Central America & Virginia Beach) plus three earlier missions (Indonesia, Red River: and Denver) for a total of 13 missions.

  13. Non-Digital Game Playing by Older Adults.

    Science.gov (United States)

    Mortenson, W Ben; Sixsmith, Andrew; Kaufman, David

    2017-09-01

    Research on video games' effect on cognition and behaviour has been extensive, yet little research has explored non-digital forms of game playing, especially among older adults. As part of a larger survey on game playing, 886 respondents (≥ age 55) filled out questionnaires about non-digital game play. The study aims were to determine perceived benefits of non-digital game play and to determine socio-demographic factors that might predict perceived benefits. Survey results indicate that non-digital game playing is social in nature and common (73% of respondents) among older adults. Older adults play for fun, but also to help maintain their cognition. Regression analyses indicated various socio-demographic factors - age, education, gender, and race - were independently associated with perceived benefits from game playing. The results thus emphasize the importance of non-digital game playing in this population and suggest that efforts to facilitate game playing may improve social interactions and quality of life.

  14. Playing with Time in Digital Fiction

    OpenAIRE

    2015-01-01

    The exceptional quality of digital fictions lies in their inherently dynamic nature, how they may be flexibly programmed to generate new content and alter the already existing contents. This adds a new temporal level, compared to traditional fictions. Digital games, especially, incorporate aspects of simulation and narration in their structure. As interactive and dynamic media form, games are specifically temporal in nature. They offer us the flexibility and preciseness of digital simulations...

  15. EROS Data Center Landsat digital enhancement techniques and imagery availability

    Science.gov (United States)

    Rohde, Wayne G.; Lo, Jinn Kai; Pohl, Russell A.

    1978-01-01

    The US Geological Survey's EROS Data Center (EDC) is experimenting with the production of digitally enhanced Landsat imagery. Advanced digital image processing techniques are used to perform geometric and radiometric corrections and to perform contrast and edge enhancements. The enhanced image product is produced from digitally preprocessed Landsat computer compatible tapes (CCTs) on a laser beam film recording system. Landsat CCT data have several geometric distortions which are corrected when NASA produces the standard film products. When producing film images from CCT's, geometric correction of the data is required. The EDC Digital Image Enhancement System (EDIES) compensates for geometric distortions introduced by Earth's rotation, variable line length, non-uniform mirror scan velocity, and detector misregistration. Radiometric anomalies such as bad data lines and striping are common to many Landsat film products and are also in the CCT data. Bad data lines or line segments with more than 150 contiguous bad pixels are corrected by inserting data from the previous line in place of the bad data. Striping, caused by variations in detector gain and offset, is removed with a destriping algorithm applied after digitally enhancing the data. Image enhancement is performed by applying a linear contrast stretch and an edge enhancement algorithm. The linear contrast enhancement algorithm is designed to expand digitally the full range of useful data recorded on the CCT over the range of 256 digital counts. This minimizes the effect of atmospheric scattering and saturates the relative brightness of highly reflecting features such as clouds or snow. It is the intent that no meaningful terrain data are eliminated by the digital processing. The edge enhancement algorithm is designed to enhance boundaries between terrain features that exhibit subtle differences in brightness values along edges of features. After the digital data have been processed, data for each Landsat band

  16. Structure from Motion (SfM) photogrammetry applied to historical imagery: plug & play?

    Science.gov (United States)

    Bakker, Maarten; Lane, Stuart N.

    2017-04-01

    The development of Structure from Motion (SfM) photogrammetry has led to a vast increase and expansion of geomorphological applications. Highly detailed Digital Elevation Models (DEMs) can be efficiently generated from a variety of platforms that cover a large range of spatial scales. For the application of DEMs in geomorphic change analysis, precision and spatial resolution are not of sole importance, but also their accuracy, temporal resolution and temporal coverage. The use of archival imagery may substantially lengthen temporal coverage, allowing quantification of annual to decadal scale landform change. Whilst archival photogrammetry is not new, a question arises as to how applicable SfM methods are as a more cost-effective and straightforward alternative to the conventional approach. Here, we studied a relatively extreme case where we applied SfM techniques to archival aerial imagery, to investigate the decadal evolution of a low relief braided river. The Borgne is an Alpine river in south-west Switzerland which is strongly affected by flow abstraction for hydropower, allowing the fairly straightforward application of photogrammetry on the near-dry river bed. For 8 sets of scanned historical aerial images in the period 1959-2005 we performed Ground Control Point (GCP) assisted bundle adjustment using both classical archival digital photogrammetry (used as a reference dataset) and SfM based photogrammetry. For the SfM method, no further data were used to constrain camera or exterior orientation parameters a priori, but instead we used these for a posteriori verification. The resulting densified point clouds were registered onto a reference surface based on stable areas, allowing the correction for any systematic error in DEMs that may arise from (random) error in the bundle adjustment. The obtained results show that the quality of the SfM based bundle adjustment is similar to that of the classical photogrammetric approach. Next to image scale, the quality is

  17. Developing Competencies by Playing Digital Sports-Games

    Science.gov (United States)

    Kretschmann, Rolf

    2010-01-01

    The idea of digital game-based learning (DGBL) is that students (or players) learn something by playing a computer or video game and that an educator can employ digital games to assist and boost both formal and informal learning. There is game software that is not specifically produced for educational use but which is nonetheless regularly…

  18. Aerial Photography and Imagery, Ortho-Corrected - 2009 Digital Orthophotos - Hernando County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This data set is one component of a digital orthophoto imagery (DOI) coverage over the Southwest Florida Water Management District (SWFWMD) North District Area, for...

  19. Aerial Photography and Imagery, Ortho-Corrected - 2010 Digital Orthophotos - Hernando County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This data set is one component of a digital orthophoto imagery (DOI) coverage over the Southwest Florida Water Management District (SWFWMD) North District Area, for...

  20. Massachusetts Bay - Internal Wave Packets Digitized from SAR Imagery and Intersected with Bathymetry

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This feature class contains internal wave packets digitized from SAR imagery and intersected with bathymetry for Massachusetts Bay. The internal wave packets were...

  1. Massachusetts Bay - Internal Wave Packets Digitized from SAR Imagery and Intersected with Tidal Zones

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This feature class contains internal wave packets digitized from SAR imagery and intersected with tidal zones for Massachusetts Bay. The internal wave packets were...

  2. Aerial Photography and Imagery, Ortho-Corrected - 2012 Digital Orthophotos - Monroe County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This metadata describes the digital orthoimagery covering Monroe County, FL. This 1"=100' scale imagery is comprised of natural color orthoimagery with a GSD (Ground...

  3. Aerial Photography and Imagery, Ortho-Corrected - 2011 Digital Orthophotos - Highlands County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This metadata describes the digital orthoimagery covering Highlands County, FL. This 1"=100' scale imagery is comprised of natural color orthoimagery with a GSD...

  4. Aerial Photography and Imagery, Ortho-Corrected - 2011 Digital Orthophotos - Hendry County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This metadata describes the digital orthoimagery covering Hendry County, FL. This 1"=200' scale imagery is comprised of natural color orthoimagery with a GSD (Ground...

  5. Aerial Photography and Imagery, Ortho-Corrected - 2012 Digital Orthophotos - Monroe County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This metadata describes the digital orthoimagery covering the area of the Everglades in Monroe County, FL as defined by the FL DOR. This 1"=100' scale imagery is...

  6. Aerial Photography and Imagery, Ortho-Corrected - 2009 Digital Orthophotos - Citrus County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This data set is one component of a digital orthophoto imagery (DOI) coverage over the Southwest Florida Water Management District (SWFWMD) North District Area, for...

  7. Aerial Photography and Imagery, Ortho-Corrected - 2009 Digital Orthophotos - Levy County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This data set is one component of a digital orthophoto imagery (DOI) coverage over the Southwest Florida Water Management District (SWFWMD) North District Area, for...

  8. Aerial Photography and Imagery, Ortho-Corrected - 2009 Digital Orthophotos - Marion County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This data set is one component of a digital orthophoto imagery (DOI) coverage over the Southwest Florida Water Management District (SWFWMD) North District Area, for...

  9. Aerial Photography and Imagery, Ortho-Corrected - 2010 Digital Orthophotos - Marion County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This data set is one component of a digital orthophoto imagery (DOI) coverage over the Southwest Florida Water Management District (SWFWMD) North District Area, for...

  10. Aerial Photography and Imagery, Ortho-Corrected - 2010 Digital Orthophotos - Pasco County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This data set is one component of a digital orthophoto imagery (DOI) coverage over the Southwest Florida Water Management District (SWFWMD) North District Area, for...

  11. Aerial Photography and Imagery, Ortho-Corrected - 2010 Digital Orthophotos - Lake County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This data set is one component of a digital orthophoto imagery (DOI) coverage over the Southwest Florida Water Management District (SWFWMD) North District Area, for...

  12. Aerial Photography and Imagery, Ortho-Corrected - 2009 Digital Orthophotos - Pasco County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This data set is one component of a digital orthophoto imagery (DOI) coverage over the Southwest Florida Water Management District (SWFWMD) North District Area, for...

  13. Aerial Photography and Imagery, Ortho-Corrected - 2010 Digital Orthophotos - Sumter County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This data set is one component of a digital orthophoto imagery (DOI) coverage over the Southwest Florida Water Management District (SWFWMD) North District Area, for...

  14. Aerial Photography and Imagery, Ortho-Corrected - 2010 Digital Orthophotos - Citrus County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This data set is one component of a digital orthophoto imagery (DOI) coverage over the Southwest Florida Water Management District (SWFWMD) North District Area, for...

  15. Aerial Photography and Imagery, Ortho-Corrected - 2009 Digital Orthophotos - Sumter County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This data set is one component of a digital orthophoto imagery (DOI) coverage over the Southwest Florida Water Management District (SWFWMD) North District Area, for...

  16. Aerial Photography and Imagery, Ortho-Corrected - 2010 Digital Orthophotos - Levy County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This data set is one component of a digital orthophoto imagery (DOI) coverage over the Southwest Florida Water Management District (SWFWMD) North District Area, for...

  17. Aerial Photography and Imagery, Ortho-Corrected - 2010 Digital Orthophotos - Lake County

    Data.gov (United States)

    NSGIC Education | GIS Inventory — This data set is one component of a digital orthophoto imagery (DOI) coverage over the Southwest Florida Water Management District (SWFWMD) North District Area, for...

  18. Digital Creativity:Children’s Playful Mastery of Technology

    OpenAIRE

    Petersson Brooks, Eva; Brooks, Anthony Lewis

    2014-01-01

    This paper reports on a study exploring the outcomes from children’s play with technology in earlychildhood learning practices. The paper addresses questions related to how digital technology canfoster creativity in early childhood learning environments. It consists of an analysis of children’sinteraction with the KidSmart furniture focusing on digital creativity potentials and play valuessuggested by the technology. The study applied a qualitative approach and included125 children(aged three...

  19. Creative PlayWorks PS2000 Digital

    Institute of Scientific and Technical Information of China (English)

    幸宇杰

    2001-01-01

    @@ 日本最先推出 Creative的PlayWorks PS2000 Digital虽然还没有在国内正式上市,但在日本已推出有一段时间.Creative对PS2000的上市算是很低调的了,没有第一时间邀请传媒测试,是与其产品的定位有关.事实上,PS2000主要针对的并非PC用户,反而是PS2游戏机,或者DVD机用户.

  20. Geometric rectification of radar imagery using digital elevation models

    Science.gov (United States)

    Naraghi, M.; Stromberg, W.; Daily, M.

    1983-01-01

    Geologic analysis of radar imagery requires accurate spatial rectification to allow rock type discrimination and meaningful exploitation of multisensor data files. A procedure is described which removes distortions produced by most sources including the heretofore elusive problem of terrain induced effects. Rectified imagery is presented which displays geologic features not apparent in the distorted data.

  1. The relief of a caregiver's burden through guided imagery, role-playing, humor, and paradoxical intervention.

    Science.gov (United States)

    Yip, Kam-Shing

    2003-01-01

    Caregiving by relatives to a person with mental illness is demanding and overwhelming. This paper describes how to use guided imagery, role-playing, humor, and paradoxical intervention to help the wife of a man with mental illness in easing her worry, anxiety, and frustration engendered by caregiving. The intervention made the wife feel normal and relaxed in facing the "symptoms" of her husband's mental illness. It also revived the wife's patience, hope, and strength in the process of rehabilitation.

  2. Reindeer & Wolves: Exploring Sensory Deprivation in Multiplayer Digital Bodily Play

    DEFF Research Database (Denmark)

    Finnegan, Daniel; Velloso, Eduardo; Mitchell, Robb;

    2014-01-01

    Games designed around digital bodily play involve bodily movement and expression to create engaging gameplay experiences. Most feedback in these games takes the form of visual stimuli. To explore the gameplay mechanics afforded by depriving players from these visual cues, we designed Reindeer & W...... & Wolves, a role-playing game where blindfolded players capture other players relying on their hearing alone. Based on our design and play testing, we devised four strategies for designing games that incorporate sensory deprivation as an element of the core mechanic.......Games designed around digital bodily play involve bodily movement and expression to create engaging gameplay experiences. Most feedback in these games takes the form of visual stimuli. To explore the gameplay mechanics afforded by depriving players from these visual cues, we designed Reindeer...

  3. Imagery-37: a virtual lab for computer assisted education on digital image processing

    OpenAIRE

    Montenegro Joo, Javier; Universidad Nacional Mayor de San Marcos

    2014-01-01

    Imagery is a Virtual Lab for computer-assisted traning on Digital Image Processing(DIP), currently including 37 modules. Thhis software allows the user in the effects on real images; it may be used in the classroom, in the laboratory or at home. Imagery not only operates on images included by its creator(the author of this report), but also on those provided by the user. Some supporting theory is incluyed in Imagery, which may be used as a complement to specialized textbooks or classes. Im...

  4. Connecticut Coastal Airborne ADS40 Digital Imagery Acquisition and Natural Color and Color Infrared Orthophoto Production collected in September 2004

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The NOAA Office for Coastal Management purchased digital ADS40 imagery and digital elevation models of the Connecticut coastline in 2004. The Coastal Connecticut...

  5. Vertical Accuracy Comparison of Digital Elevation Model from LIDAR and Multitemporal Satellite Imagery

    Science.gov (United States)

    Octariady, J.; Hikmat, A.; Widyaningrum, E.; Mayasari, R.; Fajari, M. K.

    2017-05-01

    Digital elevation model serves to illustrate the appearance of the earth's surface. DEM can be produced from a wide variety of data sources including from radar data, LiDAR data, and stereo satellite imagery. Making the LiDAR DEM conducted using point cloud data from LiDAR sensor. Making a DEM from stereo satellite imagery can be done using same temporal or multitemporal stereo satellite imagery. How much the accuracy of DEM generated from multitemporal stereo stellite imagery and LiDAR data is not known with certainty. The study was conducted using LiDAR DEM data and multitemporal stereo satellite imagery DEM. Multitemporal stereo satellite imagery generated semi-automatically by using 3 scene stereo satellite imagery with acquisition 2013-2014. The high value given each of DEM serve as the basis for calculating high accuracy DEM respectively. The results showed the high value differences in the fraction of the meter between LiDAR DEM and multitemporal stereo satellite imagery DEM.

  6. Children Learning to Use Technologies through Play: A Digital Play Framework

    Science.gov (United States)

    Bird, Jo; Edwards, Susan

    2015-01-01

    Digital technologies are increasingly acknowledged as an important aspect of early childhood education. A significant problem for early childhood education has been how to understand the pedagogical use of technologies in a sector that values play-based learning. This paper presents a new framework to understand how children learn to use…

  7. Children Learning to Use Technologies through Play: A Digital Play Framework

    Science.gov (United States)

    Bird, Jo; Edwards, Susan

    2015-01-01

    Digital technologies are increasingly acknowledged as an important aspect of early childhood education. A significant problem for early childhood education has been how to understand the pedagogical use of technologies in a sector that values play-based learning. This paper presents a new framework to understand how children learn to use…

  8. Digital imagery: a simple approach to study plant responses to drought

    Science.gov (United States)

    Ahrends, H. E.; Etzold, S.; Jeanneret, F.; Eugster, W.; Wanner, H.; Buchmann, N.

    2009-04-01

    Different tree species show diverse responses to changing environmental conditions. Since these responses give deeper insight in ecosystem functionality suitable observation techniques are needed. Recent studies have demonstrated the successful application of digital camera imagery for phenological monitoring in ecosystem studies. However, the use of daily imagery from standard RGB cameras to observe species-specific responses of vegetation on environmental impacts has not been tested yet. We therefore studied possibilities and limitations of applying camera imagery of a mixed forest in the observation of tree-specific responses to drought stress. A digital camera was mounted on the uppermost platform of a fluxtower at the CarboEurope site Lägeren (northern Switzerland). Since 2005 the camera provides daily imagery of the forest canopy which is mainly consisting of beech and ash trees. Based on the image color values a vegetation index was computed. Time series of the vegetation index were jointly analyzed with meteorological data and eddy covariance measurements of ecosystem carbon dioxide and water vapour exchange. Changing environmental conditions caused changes in the images color values, therefore meteorological data and carbon dioxide exchange data were significantly correlated with the index values. A drought period in early summer 2006 influenced index values for beech but not for the highly drought-tolerant ash trees. We conclude that digital imagery provides a cost-effective, nondestructive and objective technique to study species-specific vegetation responses to drought stress and provide useful data that can be integrated in forest ecosystem models.

  9. A color-communication scheme for digital imagery

    Science.gov (United States)

    Acosta, Alex

    1987-01-01

    Color pictures generated from digital images are frequently used by geologists, foresters, range managers, and others. These color products are preferred over black and white pictures because the human eye is more sensitive to color differences than to various shades of gray. Color discrimination is a function of perception, and therefore colors in these color composites are generally described subjectively, which can lead to ambiguous color communication. Numerous color-coordinate systems are available that quantitively relate digital triplets representing amounts of red, free, and blue to the parameters of hue, saturation, and intensity perceived by the eye. Most of these systems implement a complex transformation of the primary colors to a color space that is hard to visualize, thus making it difficult to relate digital triplets to perception parameters. This paper presents a color-communcation scheme that relates colors on a color triangle to corresponding values of "hue" (H), "saturation" (S), and chromaticity coordinates (x,y,z). The scheme simplifies the relation between red, green, and blue (RGB) digital triplets and the color generated by these triplets. Some examples of the use of the color-communication scheme in digital image processing are presented.

  10. Massachusetts Bay - Internal wave packets digitized from SAR imagery and intersected with a bathymetrically derived slope surface

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This feature class contains internal wave packets digitized from SAR imagery and intersected with a bathymetrically derived slope surface for Massachusetts Bay. The...

  11. Processing Digital Imagery to Enhance Perceptions of Realism

    Science.gov (United States)

    Woodell, Glenn A.; Jobson, Daniel J.; Rahman, Zia-ur

    2003-01-01

    Multi-scale retinex with color restoration (MSRCR) is a method of processing digital image data based on Edwin Land s retinex (retina + cortex) theory of human color vision. An outgrowth of basic scientific research and its application to NASA s remote-sensing mission, MSRCR is embodied in a general-purpose algorithm that greatly improves the perception of visual realism and the quantity and quality of perceived information in a digitized image. In addition, the MSRCR algorithm includes provisions for automatic corrections to accelerate and facilitate what could otherwise be a tedious image-editing process. The MSRCR algorithm has been, and is expected to continue to be, the basis for development of commercial image-enhancement software designed to extend and refine its capabilities for diverse applications.

  12. User-Driven Geolocation of Untagged Desert Imagery Using Digital Elevation Models

    Science.gov (United States)

    2013-01-01

    User-Driven Geolocation of Untagged Desert Imagery Using Digital Elevation Models Eric Tzeng, Andrew Zhai, Matthew Clements, Raphael Townshend, and...normalizing skylines with respect to their features, we achieve similarity invariance. Furthermore, our system is robust to partial occlusions ; since the...feature is used as a key to an entry to the hash-table, we ensure that only a convex normalized feature can be used to get that entry in the hash-table

  13. Registering Thematic Mapper imagery to digital elevation models

    Science.gov (United States)

    Frew, J.

    1984-01-01

    The problems encountered when attempting to register Landsat Thematic Mapper (TM) data to U.S. geological survey digital elevation models (DEMs) are examined. It is shown that TM and DEM data are not available in the same map projection, necessitating geometric transformation of one of the data type, that the TM data are not accurately located in their nominal projection, and that TM data have higher resolution than most DEM data, but oversampling the DEM data to TM resolution introduces systematic noise. Further work needed in this area is discussed.

  14. Playing piano in the mind--an fMRI study on music imagery and performance in pianists.

    Science.gov (United States)

    Meister, I G; Krings, T; Foltys, H; Boroojerdi, B; Müller, M; Töpper, R; Thron, A

    2004-05-01

    Reading of musical notes and playing piano is a very complex motor task which requires years of practice. In addition to motor skills, rapid and effective visuomotor transformation as well as processing of the different components of music like pitch, rhythm and musical texture are involved. The aim of the present study was the investigation of the cortical network which mediates music performance compared to music imagery in 12 music academy students playing the right hand part of a Bartok piece using functional magnetic resonance imaging (fMRI). In both conditions, fMRI activations of a bilateral frontoparietal network comprising the premotor areas, the precuneus and the medial part of Brodmann Area 40 were found. During music performance but not during imagery the contralateral primary motor cortex and posterior parietal cortex (PPC) bilaterally was active. This reflects the role of primary motor cortex for motor execution but not imagery and the higher visuomotor integration requirements during music performance compared to simulation. The notion that the same areas are involved in visuomotor transformation/motor planning and music processing emphasizes the multimodal properties of cortical areas involved in music and motor imagery in musicians.

  15. a Detailed Study about Digital Surface Model Generation Using High Resolution Satellite Stereo Imagery

    Science.gov (United States)

    Gong, K.; Fritsch, D.

    2016-06-01

    Photogrammetry is currently in a process of renaissance, caused by the development of dense stereo matching algorithms to provide very dense Digital Surface Models (DSMs). Moreover, satellite sensors have improved to provide sub-meter or even better Ground Sampling Distances (GSD) in recent years. Therefore, the generation of DSM from spaceborne stereo imagery becomes a vivid research area. This paper presents a comprehensive study about the DSM generation of high resolution satellite data and proposes several methods to implement the approach. The bias-compensated Rational Polynomial Coefficients (RPCs) Bundle Block Adjustment is applied to image orientation and the rectification of stereo scenes is realized based on the Project-Trajectory-Based Epipolarity (PTE) Model. Very dense DSMs are generated from WorldView-2 satellite stereo imagery using the dense image matching module of the C/C++ library LibTsgm. We carry out various tests to evaluate the quality of generated DSMs regarding robustness and precision. The results have verified that the presented pipeline of DSM generation from high resolution satellite imagery is applicable, reliable and very promising.

  16. Young Boys Playing Digital Games. From Console to the Playground.

    Directory of Open Access Journals (Sweden)

    Pål Aarsand

    2010-06-01

    Full Text Available This article studies how digital games are part of the everyday lives of Swedish 6 to 7-year-old boys. The data consist of video recordings from two schools, two after-school centres and four homes. The focus is on how children engage in, organize and use digital games in face-to-face interaction. It is argued that digital game competence matters not only in front of the screen, but also in the playground. In addition, it is argued that what counts as game competence is negotiated in the peer group.

  17. Assessment of the Quality of Digital Terrain Model Produced from Unmanned Aerial System Imagery

    Science.gov (United States)

    Kosmatin Fras, M.; Kerin, A.; Mesarič, M.; Peterman, V.; Grigillo, D.

    2016-06-01

    Production of digital terrain model (DTM) is one of the most usual tasks when processing photogrammetric point cloud generated from Unmanned Aerial System (UAS) imagery. The quality of the DTM produced in this way depends on different factors: the quality of imagery, image orientation and camera calibration, point cloud filtering, interpolation methods etc. However, the assessment of the real quality of DTM is very important for its further use and applications. In this paper we first describe the main steps of UAS imagery acquisition and processing based on practical test field survey and data. The main focus of this paper is to present the approach to DTM quality assessment and to give a practical example on the test field data. For data processing and DTM quality assessment presented in this paper mainly the in-house developed computer programs have been used. The quality of DTM comprises its accuracy, density, and completeness. Different accuracy measures like RMSE, median, normalized median absolute deviation and their confidence interval, quantiles are computed. The completeness of the DTM is very often overlooked quality parameter, but when DTM is produced from the point cloud this should not be neglected as some areas might be very sparsely covered by points. The original density is presented with density plot or map. The completeness is presented by the map of point density and the map of distances between grid points and terrain points. The results in the test area show great potential of the DTM produced from UAS imagery, in the sense of detailed representation of the terrain as well as good height accuracy.

  18. A Digital Scene Model For Simulation Of Visual And Infrared Imagery

    Science.gov (United States)

    Gardner, Geoffrey Y.; Mendelsohn, Jay; Kim, Julius; Reynolds, William

    1987-09-01

    Digital scene modeling provides a powerful tool for the simulation of visual and infrared imagery because it allows control of all aspects of the scene. Specific targets can be defined and placed in arbitrary back-grounds, and specific atmospheric conditions and diurnal effects can be included and changed with relative ease, allowing a comprehensive study of factors critical to a real-world scenario. A major stumbling block to digital simulation has been the computation load required to process scenes containing a realistic representation of natural detail. The traditional approach to computer modeling of natural scenes represents natural detail explicitly, requiring a complex geometric data base which is costly to render. An alternative approach to modeling natural scenes is to use a small number of surfaces to define the major geometry of scene features and to use texturing to imply surface detail. Techniques developed at the Grumman Corporate Research Center use a few simple surfaces to define major scene features, such as hills, trees, and clouds, and a mathematical texturing function to define minor topographical detail by modulating surface shading and translucence. This technique pro-duces realistic visual images with much less computation than the traditional approach. Continuing research at Grumman in cooperation with the Keweenaw Research Institute and the U.S. Army Tank Automotive Command (TACOM) has extended the use of this technology to the simulation of infrared imagery by using the statistical characteristics of measured IR data to control textural shading on scene surfaces. This allows the simulation of visual and IR imagery using the same geometric data base and provides a cost-effective tool that can be integrated in a comprehensive target acquisition simulation system which will include missile dynamics, multi-sensor simulation, image processing, and pat-tern recognition.

  19. One Screen, Many Fingers: Young Children's Collaborative Literacy Play with Digital Puppetry Apps and Touchscreen Technologies

    Science.gov (United States)

    Wohlwend, Karen E.

    2015-01-01

    This article examines the digital literacy practices that emerge when young children play together with digital apps on touchscreen devices. Children's collaborative composing with a digital puppetry app on a touchscreen--with many hands all busy dragging, resizing, and animating puppet characters, and many voices making sound effects, narrating,…

  20. Play a Starring Role in Your Textbook: A Digital Web Platform with an Embedded Role-Playing Game

    Science.gov (United States)

    Spielvogel, Laura; Spielvogel, Christian

    2014-01-01

    In this report, we introduce our digital e-textbook web platform with an integrated role-playing game, which has been created for "introduction to anthropology" courses. We believe that textbooks have the potential to do more to motivate students' pursuit of learning if their material (topically organised chapters supported by…

  1. Images of Play Experiences through a Child's Lens: An Exploration of Play and Digital Media with Young Children

    Science.gov (United States)

    Eckhoff, Angela

    2017-01-01

    This research documents the use of digital media by young children in outdoor play spaces. The research was conducted at a child care center on an urban university campus in the southeastern USA. The research employed a participatory design and used a qualitative, reflexive approach to include the child's voice, ideas, and understandings of their…

  2. Play a Starring Role in Your Textbook: A Digital Web Platform with an Embedded Role-Playing Game

    Science.gov (United States)

    Spielvogel, Laura; Spielvogel, Christian

    2014-01-01

    In this report, we introduce our digital e-textbook web platform with an integrated role-playing game, which has been created for "introduction to anthropology" courses. We believe that textbooks have the potential to do more to motivate students' pursuit of learning if their material (topically organised chapters supported by…

  3. Automated Soil Physical Parameter Assessment Using Smartphone and Digital Camera Imagery

    Directory of Open Access Journals (Sweden)

    Matt Aitkenhead

    2016-12-01

    Full Text Available Here we present work on using different types of soil profile imagery (topsoil profiles captured with a smartphone camera and full-profile images captured with a conventional digital camera to estimate the structure, texture and drainage of the soil. The method is adapted from earlier work on developing smartphone apps for estimating topsoil organic matter content in Scotland and uses an existing visual soil structure assessment approach. Colour and image texture information was extracted from the imagery. This information was linked, using geolocation information derived from the smartphone GPS system or from field notes, with existing collections of topography, land cover, soil and climate data for Scotland. A neural network model was developed that was capable of estimating soil structure (on a five-point scale, soil texture (sand, silt, clay, bulk density, pH and drainage category using this information. The model is sufficiently accurate to provide estimates of these parameters from soils in the field. We discuss potential improvements to the approach and plans to integrate the model into a set of smartphone apps for estimating health and fertility indicators for Scottish soils.

  4. Correlation and registration of ERTS multispectral imagery. [by a digital processing technique

    Science.gov (United States)

    Bonrud, L. O.; Henrikson, P. J.

    1974-01-01

    Examples of automatic digital processing demonstrate the feasibility of registering one ERTS multispectral scanner (MSS) image with another obtained on a subsequent orbit, and automatic matching, correlation, and registration of MSS imagery with aerial photography (multisensor correlation) is demonstrated. Excellent correlation was obtained with patch sizes exceeding 16 pixels square. Qualities which lead to effective control point selection are distinctive features, good contrast, and constant feature characteristics. Results of the study indicate that more than 300 degrees of freedom are required to register two standard ERTS-1 MSS frames covering 100 by 100 nautical miles to an accuracy of 0.6 pixel mean radial displacement error. An automatic strip processing technique demonstrates 600 to 1200 degrees of freedom over a quater frame of ERTS imagery. Registration accuracies in the range of 0.3 pixel to 0.5 pixel mean radial error were confirmed by independent error analysis. Accuracies in the range of 0.5 pixel to 1.4 pixel mean radial error were demonstrated by semi-automatic registration over small geographic areas.

  5. Statistical correction of lidar-derived digital elevation models with multispectral airborne imagery in tidal marshes

    Science.gov (United States)

    Buffington, Kevin J.; Dugger, Bruce D.; Thorne, Karen M.; Takekawa, John

    2016-01-01

    Airborne light detection and ranging (lidar) is a valuable tool for collecting large amounts of elevation data across large areas; however, the limited ability to penetrate dense vegetation with lidar hinders its usefulness for measuring tidal marsh platforms. Methods to correct lidar elevation data are available, but a reliable method that requires limited field work and maintains spatial resolution is lacking. We present a novel method, the Lidar Elevation Adjustment with NDVI (LEAN), to correct lidar digital elevation models (DEMs) with vegetation indices from readily available multispectral airborne imagery (NAIP) and RTK-GPS surveys. Using 17 study sites along the Pacific coast of the U.S., we achieved an average root mean squared error (RMSE) of 0.072 m, with a 40–75% improvement in accuracy from the lidar bare earth DEM. Results from our method compared favorably with results from three other methods (minimum-bin gridding, mean error correction, and vegetation correction factors), and a power analysis applying our extensive RTK-GPS dataset showed that on average 118 points were necessary to calibrate a site-specific correction model for tidal marshes along the Pacific coast. By using available imagery and with minimal field surveys, we showed that lidar-derived DEMs can be adjusted for greater accuracy while maintaining high (1 m) resolution.

  6. Conceptual Understanding of Multiplicative Properties through Endogenous Digital Game Play

    Science.gov (United States)

    Denham, Andre

    2012-01-01

    This study purposed to determine the effect of an endogenously designed instructional game on conceptual understanding of the associative and distributive properties of multiplication. Additional this study sought to investigate if performance on measures of conceptual understanding taken prior to and after game play could serve as predictors of…

  7. Improved TDEM formation using fused ladar/digital imagery from a low-cost small UAV

    Science.gov (United States)

    Khatiwada, Bikalpa; Budge, Scott E.

    2017-05-01

    Formation of a Textured Digital Elevation Model (TDEM) has been useful in many applications in the fields of agriculture, disaster response, terrain analysis and more. Use of a low-cost small UAV system with a texel camera (fused lidar/digital imagery) can significantly reduce the cost compared to conventional aircraft-based methods. This paper reports continued work on this problem reported in a previous paper by Bybee and Budge, and reports improvements in performance. A UAV fitted with a texel camera is flown at a fixed height above the terrain and swaths of texel image data of the terrain below is taken continuously. Each texel swath has one or more lines of lidar data surrounded by a narrow strip of EO data. Texel swaths are taken such that there is some overlap from one swath to its adjacent swath. The GPS/IMU fitted on the camera also give coarse knowledge of attitude and position. Using this coarse knowledge and the information from the texel image, the error in the camera position and attitude is reduced which helps in producing an accurate TDEM. This paper reports improvements in the original work by using multiple lines of lidar data per swath. The final results are shown and analyzed for numerical accuracy.

  8. Moments of Play, Digital technology and museums as playful learning environments

    DEFF Research Database (Denmark)

    Marchetti, Emanuela; Petersson, Eva

    2012-01-01

    This paper presents an investigation questioning how to enhance primary school age children’s learning and engagement in a guided tour of a Museum. Preliminary studies indicated playful activity during a tour enhanced the interaction between the guide and the children. Building on this is an in......-depth enquiry involving totally 48 children visiting the Viking Museum in Ribe, Denmark’s oldest town. Conclusions highlight how ‘moments of play’,designed as integral milestones of a Museum guided tour, act as a catalyst to augment, enhance and indicate children’s learning and engagement....

  9. NOAA Digital Oblique Imagery Collection for the Coasts of Main/New Hampshire, Massachusetts/Rhode Island/Connecticut, and Hudson River/Long Island /NY/NJ

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Project: NOAA Digital Orthophotography and Ancillary Oblique Imagery Collection for the Coasts of Main/New Hampshire, Massachusetts/Rhode Island/Connecticut, and...

  10. Learning to Deflect: Conceptual Change in Physics during Digital Game Play

    Science.gov (United States)

    Sengupta, Pratim; Krinks, Kara D.; Clark, Douglas B.

    2015-01-01

    How does deep conceptual change occur when students play well-designed educational games? To answer this question, we present a case study in the form of a microgenetic analysis of a student's processes of knowledge construction as he played a conceptually-integrated digital game (SURGE Next) designed to support learning about Newtonian mechanics.…

  11. The Role of Motive Objects in Early Childhood Teacher Development Concerning Children's Digital Play and Play-Based Learning in Early Childhood Curricula

    Science.gov (United States)

    Nuttall, Joce; Edwards, Susan; Mantilla, Ana; Grieshaber, Sue; Wood, Elizabeth

    2015-01-01

    Digital technologies are increasingly accepted as a viable aspect of early childhood curriculum. However, teacher uptake of digital technologies in early childhood education and their use with young children in play-based approaches to learning have not been strong. Traditional approaches to the problem of teacher uptake of digital technologies in…

  12. National Agriculture Imagery Program (NAIP) Digital Ortho Imagery Southeast for Fort Union National Monument Vegetation Mapping Project

    Data.gov (United States)

    National Park Service, Department of the Interior — A Digital Orthophoto Quarter-Quadrangle (DOQQ) is a raster image in which displacement in the image caused by sensor orientation and terrain relief has been removed....

  13. Building a 2.5D Digital Elevation Model from 2D Imagery

    Science.gov (United States)

    Padgett, Curtis W.; Ansar, Adnan I.; Brennan, Shane; Cheng, Yang; Clouse, Daniel S.; Almeida, Eduardo

    2013-01-01

    When projecting imagery into a georeferenced coordinate frame, one needs to have some model of the geographical region that is being projected to. This model can sometimes be a simple geometrical curve, such as an ellipse or even a plane. However, to obtain accurate projections, one needs to have a more sophisticated model that encodes the undulations in the terrain including things like mountains, valleys, and even manmade structures. The product that is often used for this purpose is a Digital Elevation Model (DEM). The technology presented here generates a high-quality DEM from a collection of 2D images taken from multiple viewpoints, plus pose data for each of the images and a camera model for the sensor. The technology assumes that the images are all of the same region of the environment. The pose data for each image is used as an initial estimate of the geometric relationship between the images, but the pose data is often noisy and not of sufficient quality to build a high-quality DEM. Therefore, the source imagery is passed through a feature-tracking algorithm and multi-plane-homography algorithm, which refine the geometric transforms between images. The images and their refined poses are then passed to a stereo algorithm, which generates dense 3D data for each image in the sequence. The 3D data from each image is then placed into a consistent coordinate frame and passed to a routine that divides the coordinate frame into a number of cells. The 3D points that fall into each cell are collected, and basic statistics are applied to determine the elevation of that cell. The result of this step is a DEM that is in an arbitrary coordinate frame. This DEM is then filtered and smoothed in order to remove small artifacts. The final step in the algorithm is to take the initial DEM and rotate and translate it to be in the world coordinate frame [such as UTM (Universal Transverse Mercator), MGRS (Military Grid Reference System), or geodetic] such that it can be saved in

  14. Spatially explicit rangeland erosion monitoring using high-resolution digital aerial imagery

    Science.gov (United States)

    Gillan, Jeffrey K.; Karl, Jason W.; Barger, Nichole N.; Elaksher, Ahmed; Duniway, Michael C.

    2016-01-01

    Nearly all of the ecosystem services supported by rangelands, including production of livestock forage, carbon sequestration, and provisioning of clean water, are negatively impacted by soil erosion. Accordingly, monitoring the severity, spatial extent, and rate of soil erosion is essential for long-term sustainable management. Traditional field-based methods of monitoring erosion (sediment traps, erosion pins, and bridges) can be labor intensive and therefore are generally limited in spatial intensity and/or extent. There is a growing effort to monitor natural resources at broad scales, which is driving the need for new soil erosion monitoring tools. One remote-sensing technique that can be used to monitor soil movement is a time series of digital elevation models (DEMs) created using aerial photogrammetry methods. By geographically coregistering the DEMs and subtracting one surface from the other, an estimate of soil elevation change can be created. Such analysis enables spatially explicit quantification and visualization of net soil movement including erosion, deposition, and redistribution. We constructed DEMs (12-cm ground sampling distance) on the basis of aerial photography immediately before and 1 year after a vegetation removal treatment on a 31-ha Piñon-Juniper woodland in southeastern Utah to evaluate the use of aerial photography in detecting soil surface change. On average, we were able to detect surface elevation change of ± 8−9cm and greater, which was sufficient for the large amount of soil movement exhibited on the study area. Detecting more subtle soil erosion could be achieved using the same technique with higher-resolution imagery from lower-flying aircraft such as unmanned aerial vehicles. DEM differencing and process-focused field methods provided complementary information and a more complete assessment of soil loss and movement than any single technique alone. Photogrammetric DEM differencing could be used as a technique to

  15. Encouraging Free Play: Extramural Digital Game-Based Language Learning as a Complex Adaptive System

    Science.gov (United States)

    Scholz, Kyle

    2017-01-01

    Massively multiplayer online role-playing games like World of Warcraft are ideally suited to encourage and facilitate second language development (SLD) in the extramural setting, but to what extent do the language learners' actual trajectories of gameplay contribute to SLD? With the current propensity to focus research in digital game-based…

  16. Can I Say Something? The Effects of Digital Game Play on Willingness to Communicate

    Science.gov (United States)

    Reinders, Hayo; Wattana, Sorada

    2014-01-01

    This paper reports on a study into the effects of digital game play on learners' Willingness to Communicate (WTC), or individuals' "readiness to enter into discourse at a particular time with a specific person or persons, using a L2" (MacIntyre, Dörnyei, Clément, & Noels, 1998, p. 547). Thirty Thai learners of English as a foreign…

  17. Young Children's Learning of Novel Digital Interfaces: How Technology Experience, Age, and Design Come into Play

    Science.gov (United States)

    Gilutz, Shuli

    2009-01-01

    This study looks at the relationship between age, technology experience, and design factors in determining young children's comprehension of novel digital interfaces. In Experiment 1, 35 preschoolers played three games that varied in complexity and familiarity. Parental questionnaires were used to assess children's previous technology experience.…

  18. Trading Spaces: An Educator's Ethnographic Exploration of Adolescents' Digital Role-Play

    Science.gov (United States)

    Haynes-Moore, Stacy

    2015-01-01

    In this work, the author examines a digital role-play in which participants composed an alternate version of "The Hunger Games" (Collins, 2008). Participants imagined characters and posted more than 400 scenes in the online collaboration. The author draws upon ethnographic methods (Merriam, 2009) to describe her participant-observer…

  19. Aerial Photography and Imagery, Ortho-Corrected, Digital Aerial Photography 1970. Limited georeferencing. See metadata for additional information., Published in 1970, 1:4800 (1in=400ft) scale, Washington County Government.

    Data.gov (United States)

    NSGIC Local Govt | GIS Inventory — Aerial Photography and Imagery, Ortho-Corrected dataset current as of 1970. Digital Aerial Photography 1970. Limited georeferencing. See metadata for additional...

  20. Children’s play with digital media in a Danish pre-primary school

    DEFF Research Database (Denmark)

    Jørgensen, Helle Hovgaard

    2016-01-01

    Danish schools are obliged to work ‘in a playful way’ with digital media according to the demands in the descriptions of the curricula for pre-primary education (Undervisningsministeriet, 2015). Much money has been spent on digital infrastructure, but still professionals in preprimary education say...... that they are short of time, experience and knowledge when it comes to actual implementation of new media in everyday school life. On the other hand, most children come from media-rich homes. This article addresses the gap between in and out of school from a child’s perspective. The key concepts are play and media...... literacy, and the project’s take on play is inspired by the paradigmatic change towards a participatory and child-oriented scientific position. The understanding of media literacy is narrowed down to a trichotomy that implies having access to media, understanding media and creating/ expressing oneself...

  1. Children’s Play with digital media in pre-primary school

    DEFF Research Database (Denmark)

    Jørgensen, Helle Hovgaard

    2017-01-01

    Danish schools are obliged to work ‘in a playful way’ with digital media according to the demands in the description of the curricula for the pre-primary education (Undervisningsministeriet, 2015). Much money has been spent on the digital infrastructure, but still the professionals in pre......-primary education say, that they are short of time, experience and knowledge when it comes to actual implementation of new media in every day school life. On the other hand most children come from media rich homes. The article addresses the gap between in-and-out of school from a child perspective. The key concepts...... are play and media literacy, and the project’s take on play is inspired by the paradigmatic change towards a participatory and child oriented scientific position. The understanding of media literacy is narrowed down to a trichotomy that implies having access to the media, understanding the media...

  2. Aerial Photography and Imagery, Ortho-Corrected - 2013 Digital Orthophotos - Suwannee County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — The dataset consists of tiled orthogonal imagery produced from nadir images captured by Pictometry International during the period of December 30th, 2012 to March...

  3. Aerial Photography and Imagery, Ortho-Corrected - 2011 Digital Orthophotos - Lee County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — The dataset consists of tiled orthogonal imagery produced from nadir images captured by Pictometry International January 2nd and March 21st, 2011. Automatic aerial...

  4. Aerial Photography and Imagery, Ortho-Corrected - 2012 Digital Orthophotos - Okeechobee County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This file references a single orthogonal imagery tile produced from nadir images captured by Pictometry International during the period of January 12th, 2011 to...

  5. Aerial Photography and Imagery, Ortho-Corrected - 2013 Digital Orthophotos - Okaloosa County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This file references a single orthogonal imagery tile produced from nadir images captured by Pictometry International during the period of December 21st, 2012 to...

  6. Aerial Photography and Imagery, Ortho-Corrected - 2011 Digital Orthophotos - Lee County

    Data.gov (United States)

    NSGIC Education | GIS Inventory — The dataset consists of tiled orthogonal imagery produced from nadir images captured by Pictometry International January 2nd and March 21st, 2011. Automatic aerial...

  7. Aerial Photography and Imagery, Ortho-Corrected - 2013 Digital Orthophotos - Suwannee County

    Data.gov (United States)

    NSGIC Education | GIS Inventory — The dataset consists of tiled orthogonal imagery produced from nadir images captured by Pictometry International during the period of December 30th, 2012 to March...

  8. Aerial Photography and Imagery, Ortho-Corrected - 2013 Digital Orthophotos - Okaloosa County

    Data.gov (United States)

    NSGIC Education | GIS Inventory — This file references a single orthogonal imagery tile produced from nadir images captured by Pictometry International during the period of December 21st, 2012 to...

  9. Teachers' Dispositions towards the Role of Digital Devices in Play-Based Pedagogy in Early Childhood Education

    Science.gov (United States)

    Palaiologou, Ioanna

    2016-01-01

    A body of research is emerging on early childhood education teachers' views on the integration of digital technologies in their practice. Despite evidence of the digitalisation of homes in affluent societies and children's interactions in highly mediated digital environments, few teachers so far have integrated digital devices into a play-based…

  10. Teachers' Dispositions towards the Role of Digital Devices in Play-Based Pedagogy in Early Childhood Education

    Science.gov (United States)

    Palaiologou, Ioanna

    2016-01-01

    A body of research is emerging on early childhood education teachers' views on the integration of digital technologies in their practice. Despite evidence of the digitalisation of homes in affluent societies and children's interactions in highly mediated digital environments, few teachers so far have integrated digital devices into a play-based…

  11. Can I Say Something? The Effects of Digital Game Play on Willingness to Communicate

    Science.gov (United States)

    Reinders, Hayo; Wattana, Sorada

    2014-01-01

    This paper reports on a study into the effects of digital game play on learners' Willingness to Communicate (WTC), or individuals' "readiness to enter into discourse at a particular time with a specific person or persons, using a L2" (MacIntyre, Dörnyei, Clément, & Noels, 1998, p. 547). Thirty Thai learners of English as a…

  12. Digital Game Playing Motives among Adolescents: Relations to Parent-Child Communication, School Performance, Sleeping Habits, and Perceived Health

    Science.gov (United States)

    Wallenius, Marjut; Rimpela, Arja; Punamaki, Raija-Leena; Lintonen, Tomi

    2008-01-01

    The aims of this research were to describe Finnish adolescents' different motives for digital game playing, and to examine relations between digital game playing and parent-child communication, school performance, sleeping habits, and perceived health. A questionnaire was used to assess a nationwide postal sample of 12-18-year-old Finns (6761…

  13. Aerial Photography and Imagery, Ortho-Corrected - 2007 Digital Orthophotos - Jackson County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This metadata record describes the digital orthophotos produced for FL-DOR in 2007. This 1:2400 scale orthophotography is comprised of natural color digital images...

  14. Aerial Photography and Imagery, Ortho-Corrected - 2007 Digital Orthophotos - Gulf County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This metadata record describes the digital orthophotos produced for FL-DOR in 2007. This 1:2400 scale orthophotography is comprised of natural color digital images...

  15. Aerial Photography and Imagery, Ortho-Corrected - 2007 Digital Orthophotos - Calhoun County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This metadata record describes the digital orthophotos produced for FL-DOR in 2007. This 1:2400 scale orthophotography is comprised of natural color digital images...

  16. Aerial Photography and Imagery, Ortho-Corrected, This data set contains imagery from the National Agriculture Imagery Program (NAIP). NAIP acquires digital ortho imagery during the agricultural growing seasons in the continental U.S. NAIP imagery may contain as much as 10% cloud cover per tile. This fil, Published in 2005, 1:63360 (1in=1mile) scale, University of Georgia.

    Data.gov (United States)

    NSGIC Education | GIS Inventory — Aerial Photography and Imagery, Ortho-Corrected dataset current as of 2005. This data set contains imagery from the National Agriculture Imagery Program (NAIP). NAIP...

  17. Digital image processing techniques for enhancement and classification of SeaMARC II side scan sonar imagery

    Science.gov (United States)

    Reed, Thomas Beckett, IV; Hussong, Donald

    1989-06-01

    The recent growth in the production rate of digital side scan sonar images, coupled with the rapid expansion of systematic seafloor exploration programs, has created a need for fast and quantitative means of processing seafloor imagery. Computer-aided analytical techniques fill this need. A number of numerical techniques used to enhance and classify imagery produced by SeaMARC II, a long-range combination side scan sonar, and bathymetric seafloor mapping system are documented. Three categories of techniques are presented: (1) preprocessing corrections (radiometric and geometric), (2) feature extraction, and (3) image segmentation and classification. An introduction to the concept of "feature vectors" is provided, along with an explanation of the method of evaluation of a texture feature vector based upon gray-level co-occurrence matrices (GLCM). An alternative to the a priori texel (texture element) subdivision of images is presented in the form of region growing and texture analysis (REGATA). This routine provides a texture map of spatial resolution superior to that obtainable with arbitrarily assigned texel boundaries and minimizes the possibility of mixed texture signals due to the combination of two or more textures in an arbitrarily assigned texel. Computer classification of these textural features extracted via the GLCM technique results in transformation of images into maps of image texture. These maps may either be interpreted in terms of the theoretical relationships shown between texture signatures and wavelength or converted to geologic maps by correlation of texture signatures with ground truth data. These techniques are applied to SeaMARC II side scan sonar imagery from a variety of geologic environments, including lithified and nonlithified sedimentary formations, volcanic and sedimentary debris flows, and crystalline basaltic outcrops. Application of the above processing steps provided not only superior images for both subjective and quantitative

  18. Applications and Innovations for Use of High Definition and High Resolution Digital Motion Imagery in Space Operations

    Science.gov (United States)

    Grubbs, Rodney

    2016-01-01

    The first live High Definition Television (HDTV) from a spacecraft was in November, 2006, nearly ten years before the 2016 SpaceOps Conference. Much has changed since then. Now, live HDTV from the International Space Station (ISS) is routine. HDTV cameras stream live video views of the Earth from the exterior of the ISS every day on UStream, and HDTV has even flown around the Moon on a Japanese Space Agency spacecraft. A great deal has been learned about the operations applicability of HDTV and high resolution imagery since that first live broadcast. This paper will discuss the current state of real-time and file based HDTV and higher resolution video for space operations. A potential roadmap will be provided for further development and innovations of high-resolution digital motion imagery, including gaps in technology enablers, especially for deep space and unmanned missions. Specific topics to be covered in the paper will include: An update on radiation tolerance and performance of various camera types and sensors and ramifications on the future applicability of these types of cameras for space operations; Practical experience with downlinking very large imagery files with breaks in link coverage; Ramifications of larger camera resolutions like Ultra-High Definition, 6,000 [pixels] and 8,000 [pixels] in space applications; Enabling technologies such as the High Efficiency Video Codec, Bundle Streaming Delay Tolerant Networking, Optical Communications and Bayer Pattern Sensors and other similar innovations; Likely future operations scenarios for deep space missions with extreme latency and intermittent communications links.

  19. Aerial Photography and Imagery, Ortho-Corrected - 2012 Digital Orthophotos - Orange County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This metadata describes the digital orthoimagery covering Orange County, FL. This orthoimagery was collected under contract to the Orange County Property Appraiser...

  20. Designing the vertigo experience: vertigo as a design resource for digital bodily play

    OpenAIRE

    Byrne, Richard; Marshall, Joe; Mueller, Florian ‘Floyd’

    2016-01-01

    Vertigo can be described as an attempt to momentarily destroy the stability of perception and inflict a kind of voluptuous panic upon an otherwise lucid mind. Vertigo has, however, not been generally considered as a design resource and we believe it to be under-explored in the area of digital bodily play. To investigate how vertigo could be considered as a design resource in this context, we conducted a review of relevant literature and held a design workshop with nine students to explore the...

  1. Predicting grain yield in rice using multi-temporal vegetation indices from UAV-based multispectral and digital imagery

    Science.gov (United States)

    Zhou, X.; Zheng, H. B.; Xu, X. Q.; He, J. Y.; Ge, X. K.; Yao, X.; Cheng, T.; Zhu, Y.; Cao, W. X.; Tian, Y. C.

    2017-08-01

    Timely and non-destructive assessment of crop yield is an essential part of agricultural remote sensing (RS). The development of unmanned aerial vehicles (UAVs) has provided a novel approach for RS, and makes it possible to acquire high spatio-temporal resolution imagery on a regional scale. In this study, the rice grain yield was predicted with single stage vegetation indices (VIs) and multi-temporal VIs derived from the multispectral (MS) and digital images. The results showed that the booting stage was identified as the optimal stage for grain yield prediction with VIs at a single stage for both digital image and MS image. And corresponding optimal color index was VARI with R2 value of 0.71 (Log relationship). While the optimal vegetation index NDVI[800,720] based on MS images showed a linear relationship with the grain yield and gained a higher R2 value (0.75) than color index did. The multi-temporal VIs showed a higher correlation with grain yield than the single stage VIs did. And the VIs at two random growth stage with the multiple linear regression function [MLR(VI)] performed best. The highest correlation coefficient were 0.76 with MLR(NDVI[800,720]) at the booting and heading stages (for the MS image) and 0.73 with MLR(VARI) at the jointing and booting stages (for the digital image). In addition, the VIs that showed a high correlation with LAI performed well for yield prediction, and the VIs composed of red edge band (720 nm) and near infrared band (800 nm) were found to be more effective in predicting yield and LAI at high level. In conclusion, this study has demonstrated that both MS and digital sensors mounted on the UAV are reliable platforms for rice growth and grain yield estimation, and determined the best period and optimal VIs for rice grain yield prediction.

  2. New Concepts of Play and the Problem of Technology, Digital Media and Popular-Culture Integration with Play-Based Learning in Early Childhood Education

    Science.gov (United States)

    Edwards, Susan

    2016-01-01

    Technology, digital media and popular culture form an important aspect of young children's life-worlds in contemporary post-industrial societies. A problem for early childhood educators is how to most effectively integrate these aspects of children's life-worlds into the provision of play-based learning. Traditionally, research has considered…

  3. New Concepts of Play and the Problem of Technology, Digital Media and Popular-Culture Integration with Play-Based Learning in Early Childhood Education

    Science.gov (United States)

    Edwards, Susan

    2016-01-01

    Technology, digital media and popular culture form an important aspect of young children's life-worlds in contemporary post-industrial societies. A problem for early childhood educators is how to most effectively integrate these aspects of children's life-worlds into the provision of play-based learning. Traditionally, research has considered…

  4. Aerial Photography and Imagery, Ortho-Corrected - 2008 Digital Orthophotos - Levy County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This data set is one component of a digital orthophoto coverage (DOI) over Levy County, FL. This dataset is comprised of 3-band 24-bit (red, green, and blue bands)...

  5. Aerial Photography and Imagery, Ortho-Corrected - 2008 Digital Orthophotos - Citrus County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This data set is one component of a digital orthophoto coverage (DOI) over the Southwest Florida Water Management District (SWFWMD) Area. This dataset is comprised...

  6. Aerial Photography and Imagery, Ortho-Corrected - 2008 Digital Orthophotos - Sumter County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This data set is one component of a digital orthophoto coverage (DOI) over the Southwest Florida Water Management District (SWFWMD) Area. This dataset is comprised...

  7. Aerial Photography and Imagery, Ortho-Corrected - 2011 Digital Orthophotos - Sumter County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — FY 2011 Digital Orthophotography (B089) North District One-Foot Orthophoto under Purchace Order # 11POSOW0171. Provide new high resolution 12" pixel four band stack...

  8. Aerial Photography and Imagery, Ortho-Corrected - 2011 Digital Orthophotos - Citrus County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — FY 2011 Digital Orthophotography (B089) North District One-Foot Orthophoto under Purchace Order # 11POSOW0171. Provide new high resolution 12" pixel four band stack...

  9. Aerial Photography and Imagery, Ortho-Corrected - 2011 Digital Orthophotos - Hernando County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — FY 2011 Digital Orthophotography (B089) North District One-Foot Orthophoto under Purchace Order # 11POSOW0171. Provide new high resolution 12" pixel four band stack...

  10. Aerial Photography and Imagery, Ortho-Corrected - 2009 Digital Orthophotos - Miami-Dade County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — The RGB one-foot orthophotos to be mapped consists of 1,306 cells (approximately 1,174 square miles) flown with a Z/I Intergraph DMC airborne digital sensor. The...

  11. Aerial Photography and Imagery, Ortho-Corrected - 2010 Digital Orthophotos - Sarasota County

    Data.gov (United States)

    NSGIC Education | GIS Inventory — The RGB/CIR ONE-foot orthophotos to be mapped consists of 4,362 cells (approximately 3,912 square miles) flown with a Z/I Intergraph DMC airborne digital sensor. The...

  12. Aerial Photography and Imagery, Ortho-Corrected - 2007 Digital Orthophotos - Pasco County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This data set is one component of a digital orthophoto coverage (DOI) over the Southwest Florida Water Management District (SWFWMD) North District and Polk District...

  13. Aerial Photography and Imagery, Ortho-Corrected - 2007 Digital Orthophotos - Hernando County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This data set is one component of a digital orthophoto coverage (DOI) over the Southwest Florida Water Management District (SWFWMD) North District and Polk District...

  14. Aerial Photography and Imagery, Ortho-Corrected - 2006 Digital Orthophotos - Sumter County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This data set is one component of a digital orthophoto coverage (DOI) over the Southwest Florida Water Management District (SWFWMD) North District Project Area. This...

  15. Aerial Photography and Imagery, Ortho-Corrected - 2007 Digital Orthophotos - Marion County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This data set is one component of a digital orthophoto coverage (DOI) over the Southwest Florida Water Management District (SWFWMD) North District and Polk District...

  16. Aerial Photography and Imagery, Ortho-Corrected - 2008 Digital Orthophotos - Hernando County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This data set is one component of a digital orthophoto coverage (DOI) over the Southwest Florida Water Management District (SWFWMD) Area. This dataset is comprised...

  17. Aerial Photography and Imagery, Ortho-Corrected - 2007 Digital Orthophotos - Citrus County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This data set is one component of a digital orthophoto coverage (DOI) over the Southwest Florida Water Management District (SWFWMD) North District and Polk District...

  18. Aerial Photography and Imagery, Ortho-Corrected - 2006 Digital Orthophotos - Levy County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This data set is one component of a digital orthophoto coverage (DOI) over the Southwest Florida Water Management District (SWFWMD) North District Project Area. This...

  19. Aerial Photography and Imagery, Ortho-Corrected - 2006 Digital Orthophotos - Citrus County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This data set is one component of a digital orthophoto coverage (DOI) over the Southwest Florida Water Management District (SWFWMD) North District Project Area. This...

  20. Aerial Photography and Imagery, Ortho-Corrected - 2007 Digital Orthophotos - Sumter County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This data set is one component of a digital orthophoto coverage (DOI) over the Southwest Florida Water Management District (SWFWMD) North District and Polk District...

  1. Aerial Photography and Imagery, Ortho-Corrected - 2007 Digital Orthophotos - Lake County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This data set is one component of a digital orthophoto coverage (DOI) over the Southwest Florida Water Management District (SWFWMD) North District and Polk District...

  2. Aerial Photography and Imagery, Ortho-Corrected - 2006 Digital Orthophotos - Hernando County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This data set is one component of a digital orthophoto coverage (DOI) over the Southwest Florida Water Management District (SWFWMD) North District Project Area. This...

  3. Aerial Photography and Imagery, Ortho-Corrected - 2006 Digital Orthophotos - Pasco County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This data set is one component of a digital orthophoto coverage (D! OI) over the Southwest Florida Water Management District (SWFWMD) North District Project Area....

  4. Aerial Photography and Imagery, Ortho-Corrected - 2007 Digital Orthophotos - Levy County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This data set is one component of a digital orthophoto coverage (DOI) over the Southwest Florida Water Management District (SWFWMD) North District and Polk District...

  5. Aerial Photography and Imagery, Ortho-Corrected - 2007 Digital Orthophotos - Polk County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This data set is one component of a digital orthophoto coverage (DOI) over the Southwest Florida Water Management District (SWFWMD) North District and Polk District...

  6. Aerial Photography and Imagery, Ortho-Corrected - 2009 Digital Orthophotos - Monroe County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — The RGB, 8-bit, one-foot orthophotos to be mapped consists of 810 cells (approximately 727 square miles) flown with a Z/I Intergraph DMC airborne digital sensor. The...

  7. Aerial Photography and Imagery, Ortho-Corrected - 2008 Digital Orthophotos - Lee County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — The RGB one-foot orthophotos to be mapped consists of 2,212 cells (approximately 2000 square miles) flown with a Z/I Intergraph DMC airborne digital sensor. The...

  8. Aerial Photography and Imagery, Ortho-Corrected - 2008 Digital Orthophotos - Pasco County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This data set is one component of a digital orthophoto coverage (DOI) over the Southwest Florida Water Management District (SWFWMD) Area. This dataset is comprised...

  9. Aerial Photography and Imagery, Ortho-Corrected - 2010 Digital Orthophotos - Manatee County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — The RGB/CIR ONE-foot orthophotos to be mapped consists of 4,362 cells (approximately 3,912 square miles) flown with a Z/I Intergraph DMC airborne digital sensor....

  10. Aerial Photography and Imagery, Ortho-Corrected - 2008 Digital Orthophotos - Manatee County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — The RGB/CIR half-foot orthophotos to be mapped consists of 2,258 cells (approximately 2,025 square miles) flown with a Z/I Intergraph DMC airborne digital sensor....

  11. Aerial Photography and Imagery, Ortho-Corrected - 2008 Digital Orthophotos - Hillsborough County

    Data.gov (United States)

    NSGIC Education | GIS Inventory — The RGB/CIR half-foot orthophotos to be mapped consists of 1,384 cells (approximately 1,241 square miles) flown with a Z/I Intergraph DMC airborne digital sensor....

  12. Aerial Photography and Imagery, Ortho-Corrected - 2010 Digital Orthophotos - Manatee County

    Data.gov (United States)

    NSGIC Education | GIS Inventory — The RGB/CIR ONE-foot orthophotos to be mapped consists of 4,362 cells (approximately 3,912 square miles) flown with a Z/I Intergraph DMC airborne digital sensor. The...

  13. Aerial Photography and Imagery, Ortho-Corrected - 2008 Digital Orthophotos - Manatee County

    Data.gov (United States)

    NSGIC Education | GIS Inventory — The RGB/CIR half-foot orthophotos to be mapped consists of 2,258 cells (approximately 2,025 square miles) flown with a Z/I Intergraph DMC airborne digital sensor....

  14. Aerial Photography and Imagery, Ortho-Corrected - 2011 Digital Orthophotos - Manatee County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — The RGB/CIR ONE-foot orthophotos to be mapped consists of 4,033 cells (approximately 3,617 square miles) flown with a Z/I Intergraph DMC airborne digital sensor...

  15. Aerial Photography and Imagery, Ortho-Corrected - 2011 Digital Orthophotos - Sarasota County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — The RGB/CIR ONE-foot orthophotos to be mapped consists of 4,033 cells (approximately 3,617 square miles) flown with a Z/I Intergraph DMC airborne digital sensor...

  16. Aerial Photography and Imagery, Ortho-Corrected - 2011 Digital Orthophotos - Pasco County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — The RGB/CIR ONE-foot orthophotos to be mapped consists of 4,033 cells (approximately 3,617 square miles) flown with a Z/I Intergraph DMC airborne digital sensor...

  17. Aerial Photography and Imagery, Ortho-Corrected - 2011 Digital Orthophotos - Hillsborough County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — The RGB/CIR ONE-foot orthophotos to be mapped consists of 4,033 cells (approximately 3,617 square miles) flown with a Z/I Intergraph DMC airborne digital sensor...

  18. Aerial Photography and Imagery, Ortho-Corrected - 2009 Digital Orthophotos - Monroe County

    Data.gov (United States)

    NSGIC Education | GIS Inventory — The RGB, 8-bit, one-foot orthophotos to be mapped consists of 810 cells (approximately 727 square miles) flown with a Z/I Intergraph DMC airborne digital sensor. The...

  19. Aerial Photography and Imagery, Ortho-Corrected - 2008 Digital Orthophotos - Marion County

    Data.gov (United States)

    NSGIC Education | GIS Inventory — This data set is one component of a digital orthophoto coverage (DOI) over Marion County, FL. This dataset is comprised of 3-band 24-bit (red, green, and blue bands)...

  20. Aerial Photography and Imagery, Ortho-Corrected - 2011 Digital Orthophotos - Sumter County

    Data.gov (United States)

    NSGIC Education | GIS Inventory — FY 2011 Digital Orthophotography (B089) North District One-Foot Orthophoto under Purchace Order # 11POSOW0171. Provide new high resolution 12" pixel four band stack...

  1. Aerial Photography and Imagery, Ortho-Corrected - 2010 Digital Orthophotos - Charlotte County

    Data.gov (United States)

    NSGIC Education | GIS Inventory — The RGB/CIR ONE-foot orthophotos to be mapped consists of 4,362 cells (approximately 3,912 square miles) flown with a Z/I Intergraph DMC airborne digital sensor. The...

  2. Aerial Photography and Imagery, Ortho-Corrected - 2010 Digital Orthophotos - Hillsborough County

    Data.gov (United States)

    NSGIC Education | GIS Inventory — The RGB/CIR ONE-foot orthophotos to be mapped consists of 4,362 cells (approximately 3,912 square miles) flown with a Z/I Intergraph DMC airborne digital sensor. The...

  3. Aerial Photography and Imagery, Ortho-Corrected - 2010 Digital Orthophotos - Pinellas County

    Data.gov (United States)

    NSGIC Education | GIS Inventory — The RGB/CIR ONE-foot orthophotos to be mapped consists of 4,362 cells (approximately 3,912 square miles) flown with a Z/I Intergraph DMC airborne digital sensor. The...

  4. Aerial Photography and Imagery, Ortho-Corrected - 2008 Digital Orthophotos - Hardee County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This dataset is one component of a digital orthophoto coverage (DOI) over the Southwest Florida Water Management District (SWFWMD) area. This dataset is comprised of...

  5. Aerial Photography and Imagery, Ortho-Corrected - 2009 Digital Orthophotos - Palm Beach County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This MrSID-compressed true color dataset is one component of the digital orthophoto coverage (DOI) over Palm Beach County, FL. This dataset is comprised of 3-band...

  6. Aerial Photography and Imagery, Ortho-Corrected - 2009 Digital Orthophotos - DeSoto County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This dataset is one component of a digital orthophoto coverage (DOI) over the Southwest Florida Water Management District (SWFWMD contract B089) area. This dataset...

  7. Aerial Photography and Imagery, Ortho-Corrected - 2006 Digital Orthophotos - Citrus County

    Data.gov (United States)

    NSGIC Education | GIS Inventory — This data set is one component of a digital orthophoto coverage (DOI) over the Southwest Florida Water Management District (SWFWMD) North District Project Area. This...

  8. Aerial Photography and Imagery, Ortho-Corrected - 2008 Digital Orthophotos - Sarasota County

    Data.gov (United States)

    NSGIC Education | GIS Inventory — The RGB/CIR half-foot orthophotos to be mapped consists of 2,258 cells (approximately 2,025 square miles) flown with a Z/I Intergraph DMC airborne digital sensor....

  9. Aerial Photography and Imagery, Ortho-Corrected - 2012 Digital Orthophotos - Miami-Dade County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — The natural color, ONE-foot orthophotos to be mapped consists of 1,802 cells (approximately 1,616 square miles) flown with a Z/I Intergraph DMC airborne digital...

  10. Facebook levels the playing field: Dyslexic students learning through digital literacies

    Directory of Open Access Journals (Sweden)

    Owen Barden

    2014-02-01

    Full Text Available Dyslexia has an ambivalent relationship with learning technology. Any potential gains may be nullified if the technology is perceived to exacerbate stigma. This paper examines the use of an ‘everyday’ technology, Facebook, by a small group of sixth form students labelled as dyslexic. ‘Levelling the playing field’ is a phrase the participants used often when discussing what they wanted from learning technology. Because dyslexia usually is defined in terms of significant difficulties with literacy, we might reasonably anticipate that the participants would see Facebook as stigmatising rather than levelling the playing field, because of the very public literacy events that it demands. However, the data indicate that far from shying away from Facebook because of fear of their difficulties with literacy being exposed, the participants enthusiastically embraced it. The students saw Facebook as a desirable presence in their education, one that supported inclusion. For them, levelling the playing field with Facebook had five dimensions: keeping up to date and meeting deadlines; increased control over learning; developing metacognitive awareness; greater control over literacy process and demands; and being experts and helpers. The findings perhaps challenge some assumptions about dyslexia, literacy and learning, and may be of interest to teachers working with dyslexic students, or researchers studying learning in digitally mediated social networks.

  11. Aerial Photography and Imagery, Ortho-Corrected, Mecklenburg County 2007 Digital Ortho Imagery, Published in 2007, 1:2400 (1in=200ft) scale, Mecklenburg County GIS.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Aerial Photography and Imagery, Ortho-Corrected dataset, published at 1:2400 (1in=200ft) scale, was produced all or in part from Orthoimagery information as of...

  12. (Not Playing Games: Player-Produced Walkthroughs as Archival Documents of Digital Gameplay

    Directory of Open Access Journals (Sweden)

    James Newman

    2011-10-01

    Full Text Available The subject of digital game preservation is one that has moved up the research agenda in recent years with a number of international projects, such as KEEP and Preserving Virtual Worlds, highlighting and seeking to address the impact of media decay, hardware and software obsolescence through different strategies including code emulation, for instance. Similarly, and reflecting a popular interest in the histories of digital games, exhibitions such as Game On (Barbican, UK and GameCity (Nottingham, UK experiment with ways of presenting games to a general audience. This article focuses on the UK’s National Videogame Archive (NVA which, since its foundation in 2008, has developed approaches that both dovetail with and critique existing strategies to game preservation, exhibition and display.The article begins by noting the NVA’s interest in preserving not only the code or text of the game, but also the experience of using it – that is, the preservation of gameplay as well as games. This approach is born of a conceptualisation of digital games as what Moulthrop (2004 has called “configurative performances” that are made through the interaction of code, systems, rules and, essentially, the actions of players at play. The analysis develops by problematising technical solutions to game preservation by exploring the way seemingly minute differences in code execution greatly impact on this user experience.Given these issues, the article demonstrates how the NVA returns to first principles and questions the taken-for-granted assumption that the playable game is the most effective tool for interpretation. It also encourages a consideration of the uses of non-interactive audiovisual and (paratextual materials in game preservation activity. In particular, the focus falls upon player-produced walkthrough texts, which are presented as archetypical archival documents of gameplay. The article concludes by provocatively positing that these non

  13. Digital Elevation Models of Greenland based on combined radar and laser altimetry as well as high-resolution stereoscopic imagery

    Science.gov (United States)

    Levinsen, J. F.; Smith, B. E.; Sandberg Sorensen, L.; Khvorostovsky, K.; Simonsen, S. B.; Forsberg, R.

    2015-12-01

    A number of Digital Elevation Models (DEMs) of Greenland exist, each of which are applicable for different purposes. This study presents two such DEMs: One developed by merging contemporary radar and laser altimeter data, and one derived from high-resolution stereoscopic imagery. All products are made freely available. The former DEM covers the entire Greenland. It is specific to the year 2010, providing it with an advantage over previous models suffering from either a reduced spatial/ temporal data coverage or errors from surface elevation changes (SEC) occurring during data acquisition. Radar data are acquired with Envisat and CryoSat-2, and laser data with the Ice, Cloud, and land Elevation Satellite, the Land, Vegetation, and Ice Sensor, and the Airborne Topographic Mapper. Correcting radar data for errors from slope effects and surface penetration of the echoes, and merging these with laser data, yields a DEM capable of resolving both surface depressions as well as topographic features at higher altitudes. The spatial resolution is 2 x 2 km, making the DEM ideal for application in surface mass balance studies, SEC detection from radar altimetry, or for correcting such data for slope-induced errors. The other DEM is developed in a pilot study building the expertise to map all ice-free parts of Greenland. The work combines WorldView-2 and -3 as well as GeoEye1 imagery from 2014 and 2015 over the Disko, Narsaq, Tassilaq, and Zackenberg regions. The novelty of the work is the determination of the product specifications after elaborate discussions with interested parties from government institutions, the tourist industry, etc. Thus, a 10 m DEM, 1.5 m orthophotos, and vector maps are produced. This opens to the possibility of using orthophotos with up-to-date contour lines or for deriving updated coastlines to aid, e.g., emergency management. This allows for a product development directly in line with the needs of parties with specific interests in Greenland.

  14. Aerial Photography and Imagery, Ortho-Corrected - 2010 Digital Orthophotos - Hillsborough County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — The RGB/CIR ONE-foot orthophotos to be mapped consists of 4,362 cells (approximately 3,912 square miles) flown with a Z/I Intergraph DMC airborne digital sensor. The...

  15. Aerial Photography and Imagery, Ortho-Corrected - 2010 Digital Orthophotos - DeSoto County

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — The RGB/CIR ONE-foot orthophotos to be mapped consists of 4,362 cells (approximately 3,912 square miles) flown with a Z/I Intergraph DMC airborne digital sensor. The...

  16. An Automated Software System for Updating Digital Terrain Databases from All-Source Imagery. Phase 1

    Science.gov (United States)

    1991-02-01

    Algorithm #2 Another local translation estimator which was investigated in Phase I is the phase correlation algorithm [ Schaum and McHugh,88], [Stocker...Addison Wesley, 1983. o Schaefer,R.W., Rabiner,L.R., "A Digital Signal Processing Approach to Interpolation," Proc. IEEE, vol-61, #6, 1973. o Schaum , A

  17. Aerial Photography and Imagery, Ortho-Corrected, One meter black and white digital orthophotographs created in concert with the U.S.G.S., Published in 1992, 1:9600 (1in=800ft) scale, Manitowoc County Government.

    Data.gov (United States)

    NSGIC Local Govt | GIS Inventory — Aerial Photography and Imagery, Ortho-Corrected dataset current as of 1992. One meter black and white digital orthophotographs created in concert with the U.S.G.S..

  18. NOAA Digital Orthophotography and Ancillary Oblique Imagery Collection for the Coasts of Main/New Hampshire, Massachusetts/Rhode Island/Connecticut, and Hudson River/Long Island /NY/NJ

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Project: NOAA Digital Orthophotography and Ancillary Oblique Imagery Collection for the Coasts of Main/New Hampshire, Massachusetts/Rhode Island/Connecticut, and...

  19. Atmospheric Dust in the Upper Colorado River Basin: Integrated Analysis of Digital Imagery, Total Suspended Particulate, and Meteorological Data

    Science.gov (United States)

    Urban, F. E.; Reynolds, R. L.; Neff, J. C.; Fernandez, D. P.; Reheis, M. C.; Goldstein, H.; Grote, E.; Landry, C.

    2012-12-01

    Improved measurement and observation of dust emission and deposition in the American west would advance understanding of (1) landscape conditions that promote or suppress dust emission, (2) dynamics of dryland and montane ecosystems, (3) premature melting of snow cover that provides critical water supplies, and (4) possible effects of dust on human health. Such understanding can be applied to issues of land management, water-resource management, as well as the safety and well-being of urban and rural inhabitants. We have recently expanded the scope of particulate measurement in the Upper Colorado River basin through the establishment of total-suspended-particulate (TSP) measurement stations located in Utah and Colorado with bi-weekly data (filter) collection, along with protocols for characterizing dust-on-snow (DOS) layers in Colorado mountains. A sub-network of high-resolution digital cameras has been co-located with several of the TSP stations, as well as at other strategic locations. These real-time regional dust-event detection cameras are internet-based and collect digital imagery every 6-15 minutes. Measurements of meteorological conditions to support these collections and observations are provided partly by CLIM-MET stations, four of which were deployed in 1998 in the Canyonlands (Utah) region. These stations provide continuous, near real-time records of the complex interaction of wind, precipitation, vegetation, as well as dust emission and deposition, in different land-use settings. The complementary datasets of dust measurement and observation enable tracking of individual regional dust events. As an example, the first DOS event of water year 2012 (Nov 5, 2011), as documented at Senator Beck Basin, near Silverton, Colorado, was also recorded by the camera at Island-in-the-Sky (200 km to the northwest), as well as in aeolian activity and wind data from the Dugout Ranch CLIM-MET station (170 km to the west-northwest). At these sites, strong winds and the

  20. RPC Stereo Processor (rsp) - a Software Package for Digital Surface Model and Orthophoto Generation from Satellite Stereo Imagery

    Science.gov (United States)

    Qin, R.

    2016-06-01

    Large-scale Digital Surface Models (DSM) are very useful for many geoscience and urban applications. Recently developed dense image matching methods have popularized the use of image-based very high resolution DSM. Many commercial/public tools that implement matching methods are available for perspective images, but there are rare handy tools for satellite stereo images. In this paper, a software package, RPC (rational polynomial coefficient) stereo processor (RSP), is introduced for this purpose. RSP implements a full pipeline of DSM and orthophoto generation based on RPC modelled satellite imagery (level 1+), including level 2 rectification, geo-referencing, point cloud generation, pan-sharpen, DSM resampling and ortho-rectification. A modified hierarchical semi-global matching method is used as the current matching strategy. Due to its high memory efficiency and optimized implementation, RSP can be used in normal PC to produce large format DSM and orthophotos. This tool was developed for internal use, and may be acquired by researchers for academic and non-commercial purpose to promote the 3D remote sensing applications.

  1. Novel change detection methods for multi-date digital imagery applied to South Florida vegetation

    Science.gov (United States)

    Byron, Jonathan Roy

    Remote sensing using multidate imagery allows for change detection and the analysis of important landscape processes over time. Multidate image analysis has been used to map, measure, monitor and model important changes related to topics including deforestation, loss of wetlands, drought and flooding, and urban change. Existing change detection methods have proven themselves valuable, but are limited in terms of the patterns they can detect, the need for analyst intervention, and ease of interpretation. As the volume of remotely sensed data increases and the price of data and computing facilities decreases, new techniques are needed for the rapid automated or semi-automated identification of change patterns. This research presents a number of novel methods for analyzing and visualizing change in remotely sensed data sets. One approach includes the application of parametric measures (standard deviation, range, slope) to a time series. A second approach involves the visualization of data transformed into the temporal shape domain. The third approach involves the classification of temporal patterns by neural networks. The novel techniques were proven using synthetic data, then applied to anniversary AVHRR NDVI composite images of South Florida from 1989 through 1993. For the Florida data, the results from the novel methods were compared with the results of standard methods including an unsupervised classification, principal components analysis, and write function memory insertion. A comparison of results indicates that the novel methods do uncover information that is different from, but consistent with, the standard methods. The novel methods are able to detect specific change patterns that the standard methods cannot. The novel methods are easier to interpret than the standard methods, and can contribute to the interpretation of the standard methods.

  2. Derivation of high spatial resolution albedo from UAV digital imagery: application over the Greenland Ice Sheet

    Science.gov (United States)

    Ryan, Jonathan C.; Hubbard, Alun; Box, Jason E.; Brough, Stephen; Cameron, Karen; Cook, Joseph M.; Cooper, Matthew; Doyle, Samuel H.; Edwards, Arwyn; Holt, Tom; Irvine-Fynn, Tristram; Jones, Christine; Pitcher, Lincoln H.; Rennermalm, Asa K.; Smith, Laurence C.; Stibal, Marek; Snooke, Neal

    2017-05-01

    Measurements of albedo are a prerequisite for modelling surface melt across the Earth's cryosphere, yet available satellite products are limited in spatial and/or temporal resolution. Here, we present a practical methodology to obtain centimetre resolution albedo products with accuracies of 5% using consumer-grade digital camera and unmanned aerial vehicle (UAV) technologies. Our method comprises a workflow for processing, correcting and calibrating raw digital images using a white reference target, and upward and downward shortwave radiation measurements from broadband silicon pyranometers. We demonstrate the method with a set of UAV sorties over the western, K-sector of the Greenland Ice Sheet. The resulting albedo product, UAV10A1, covers 280 km2, at a resolution of 20 cm per pixel and has a root-mean-square difference of 3.7% compared to MOD10A1 and 4.9% compared to ground-based broadband pyranometer measurements. By continuously measuring downward solar irradiance, the technique overcomes previous limitations due to variable illumination conditions during and between surveys over glaciated terrain. The current miniaturization of multispectral sensors and incorporation of upward facing radiation sensors on UAV packages means that this technique will likely become increasingly attractive in field studies and used in a wide range of applications for high temporal and spatial resolution surface mapping of debris, dust, cryoconite and bioalbedo and for directly constraining surface energy balance models.

  3. Derivation of High Spatial Resolution Albedo from UAV Digital Imagery: Application over the Greenland Ice Sheet

    Directory of Open Access Journals (Sweden)

    Jonathan C. Ryan

    2017-05-01

    Full Text Available Measurements of albedo are a prerequisite for modeling surface melt across the Earth's cryosphere, yet available satellite products are limited in spatial and/or temporal resolution. Here, we present a practical methodology to obtain centimeter resolution albedo products with accuracies of ±5% using consumer-grade digital camera and unmanned aerial vehicle (UAV technologies. Our method comprises a workflow for processing, correcting and calibrating raw digital images using a white reference target, and upward and downward shortwave radiation measurements from broadband silicon pyranometers. We demonstrate the method with a set of UAV sorties over the western, K-sector of the Greenland Ice Sheet. The resulting albedo product, UAV10A1, covers 280 km2, at a resolution of 20 cm per pixel and has a root-mean-square difference of 3.7% compared to MOD10A1 and 4.9% compared to ground-based broadband pyranometer measurements. By continuously measuring downward solar irradiance, the technique overcomes previous limitations due to variable illumination conditions during and between surveys over glaciated terrain. The current miniaturization of multispectral sensors and incorporation of upward facing radiation sensors on UAV packages means that this technique could become increasingly common in field studies and used for a wide range of applications. These include the mapping of debris, dust, cryoconite and bioalbedo, and directly constraining surface energy balance models.

  4. The Design of A Digital Family Multi-Service System Based on Triple-Play Technology

    Directory of Open Access Journals (Sweden)

    Yong Liu

    2013-04-01

    Full Text Available Under the background of three-net fusion, this study introduces a design of digital home multi-service system and elaborates from the perspective of digital TV broadcasting operation platform, interactive TV operation platform, home gateway and digital TV home multi-service terminals. This design is aimed to promote the two-way transformation of cable digital Television and the construction of operation platform. This will effectively help to accelerate the development of digital home service and broadcast television technology in Wujin.

  5. Quantification of gully volume using very high resolution DSM generated through 3D reconstruction from airborne and field digital imagery

    Science.gov (United States)

    Castillo, Carlos; Zarco-Tejada, Pablo; Laredo, Mario; Gómez, Jose Alfonso

    2013-04-01

    Major advances have been made recently in automatic 3D photo-reconstruction techniques using uncalibrated and non-metric cameras (James and Robson, 2012). However, its application on soil conservation studies and landscape feature identification is currently at the outset. The aim of this work is to compare the performance of a remote sensing technique using a digital camera mounted on an airborne platform, with 3D photo-reconstruction, a method already validated for gully erosion assessment purposes (Castillo et al., 2012). A field survey was conducted in November 2012 in a 250 m-long gully located in field crops on a Vertisol in Cordoba (Spain). The airborne campaign was conducted with a 4000x3000 digital camera installed onboard an aircraft flying at 300 m above ground level to acquire 6 cm resolution imagery. A total of 990 images were acquired over the area ensuring a large overlap in the across- and along-track direction of the aircraft. An ortho-mosaic and the digital surface model (DSM) were obtained through automatic aerial triangulation and camera calibration methods. For the field-level photo-reconstruction technique, the gully was divided in several reaches to allow appropriate reconstruction (about 150 pictures taken per reach) and, finally, the resulting point clouds were merged into a unique mesh. A centimetric-accuracy GPS provided a benchmark dataset for gully perimeter and distinguishable reference points in order to allow the assessment of measurement errors of the airborne technique and the georeferenciation of the photo-reconstruction 3D model. The uncertainty on the gully limits definition was explicitly addressed by comparison of several criteria obtained by 3D models (slope and second derivative) with the outer perimeter obtained by the GPS operator identifying visually the change in slope at the top of the gully walls. In this study we discussed the magnitude of planimetric and altimetric errors and the differences observed between the

  6. Refusing the Stereotype: Decoding Negative Gender Imagery through a School-Based Digital Media Literacy Program

    Science.gov (United States)

    Berman, Naomi; White, Alexandra

    2013-01-01

    The media plays a significant role in shaping cultural norms and attitudes, concomitantly reinforcing "body" and "beauty" ideals and gender stereotypes. Unrealistic, photoshopped and stereotyped images used by the media, advertising and fashion industries influence young people's body image and impact on their feelings of body…

  7. Variations in clast morphology for different till fractions: implementation of digital imagery

    Science.gov (United States)

    Dominiczak, Aleksander

    2014-05-01

    The form of clastic particles provides information about debris history including abrasion and transportation which are vital to geomorphological research because of its usefulness for differentiating subglacial debris form englacialy, supraglacialy and fluvially transported sediments, and for understanding subglacial processes. There are numerous attempts to clastic particles form assessment, both qualitative and quantitative and advance in technology enables the use of digital imaging and image processing in order to calculate the precise indicators of shape and roundness (small-scale surface features superimposed on shape and roundness are not a subject of this study). Computer calculations are fast, reliable and objective and its use decrease probability of errors. They are applicable to till deposits analysis and may help in understanding the processes of glacial deposition. Till deposits consist of a mixture of various fractions of sediment, where coarser and thinner grains are together activated, entrained in ice, transported, deposited and post-depositional transformed together in the same time and conditions. That implies similarity of processes acting on the particles, but not necessarily theirs effects. Physical properties of grain are of great significance for its vulnerability to acting forces. An important feature of the tills is grain size, which has a high volatility in a sample. The hypothesis of this issue suggests it is possible that different fractions of till sediment have significantly different form characteristics. Verification of the thesis is important because standardly only one fraction is selected to analysis and to draw conclusions from. Main objective is to test differences in clast morphology for different till fraction. In order to answer the research problem, the author has examined samples from a contemporary glaciated region, Nordenskiöld glacier foreland in central Spitsbergen. During the field work samples were collected from

  8. An Ecological Exploration of Young Children's Digital Play: Framing Children's Social Experiences with Technologies in Early Childhood

    Science.gov (United States)

    Arnott, Lorna

    2016-01-01

    This article outlines an ecological framework for describing children's social experiences during digital play. It presents evidence from a study that explored how 3- to 5-year-old children negotiated their social experiences as they used technologies in preschool. Utilising a systematic and iterative cycle of data collection and analysis,…

  9. Accuracy Assessment of Digital Surface Models from Unmanned Aerial Vehicles’ Imagery on Glaciers

    Directory of Open Access Journals (Sweden)

    Saskia Gindraux

    2017-02-01

    Full Text Available The use of Unmanned Aerial Vehicles (UAV for photogrammetric surveying has recently gained enormous popularity. Images taken from UAVs are used for generating Digital Surface Models (DSMs and orthorectified images. In the glaciological context, these can serve for quantifying ice volume change or glacier motion. This study focuses on the accuracy of UAV-derived DSMs. In particular, we analyze the influence of the number and disposition of Ground Control Points (GCPs needed for georeferencing the derived products. A total of 1321 different DSMs were generated from eight surveys distributed on three glaciers in the Swiss Alps during winter, summer and autumn. The vertical and horizontal accuracy was assessed by cross-validation with thousands of validation points measured with a Global Positioning System. Our results show that the accuracy increases asymptotically with increasing number of GCPs until a certain density of GCPs is reached. We call this the optimal GCP density. The results indicate that DSMs built with this optimal GCP density have a vertical (horizontal accuracy ranging between 0.10 and 0.25 m (0.03 and 0.09 m across all datasets. In addition, the impact of the GCP distribution on the DSM accuracy was investigated. The local accuracy of a DSM decreases when increasing the distance to the closest GCP, typically at a rate of 0.09 m per 100-m distance. The impact of the glacier’s surface texture (ice or snow was also addressed. The results show that besides cases with a surface covered by fresh snow, the surface texture does not significantly influence the DSM accuracy.

  10. Social Support and "Playing Around": An Examination of How Older Adults Acquire Digital Literacy With Tablet Computers.

    Science.gov (United States)

    Tsai, Hsin-Yi Sandy; Shillair, Ruth; Cotten, Shelia R

    2017-01-01

    This study examines how older adults learn to use tablet computers. Learning to use new technologies can help older adults to be included in today's digital society. However, learning to use new technologies is not always easy, especially for older adults. This study focuses on how older adults learn to use a specific technology, tablet computers, and the role that social support plays in this process. Data for this project are from 21 in-depth interviews with individuals who own tablet computers. We examine how older adults engage with tablet devices and increase their digital literacy. The findings suggest that, for older adults to start to use tablets, social support plays an important role. In addition, a key way that many participants report gaining expertise with the technology is through "playing around" with the tablets. Suggestions for how to help older adults learn to use new technologies are detailed. © The Author(s) 2015.

  11. Social Support and “Playing Around”: An Examination of How Older Adults Acquire Digital Literacy With Tablet Computers

    Science.gov (United States)

    Tsai, Hsin-yi Sandy; Shillair, Ruth; Cotten, Shelia R.

    2017-01-01

    This study examines how older adults learn to use tablet computers. Learning to use new technologies can help older adults to be included in today’s digital society. However, learning to use new technologies is not always easy, especially for older adults. This study focuses on how older adults learn to use a specific technology, tablet computers, and the role that social support plays in this process. Data for this project are from 21 in-depth interviews with individuals who own tablet computers. We examine how older adults engage with tablet devices and increase their digital literacy. The findings suggest that, for older adults to start to use tablets, social support plays an important role. In addition, a key way that many participants report gaining expertise with the technology is through “playing around” with the tablets. Suggestions for how to help older adults learn to use new technologies are detailed. PMID:26491029

  12. Aerial Photography and Imagery, Ortho-Corrected, 2003 NAIP Digital Orthophotographs of Rhode Island; This data set contains imagery from the National Agricultural Imagery Program (NAIP). NAIP acquires digital ortho imagery during the agricultural growing seasons in the continental U.S., Published in 2004, 1:24000 (1in=2000ft) scale, State of Rhode Island and Providence Plantations.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Aerial Photography and Imagery, Ortho-Corrected dataset, published at 1:24000 (1in=2000ft) scale, was produced all or in part from Orthoimagery information as...

  13. Playful Literacy

    DEFF Research Database (Denmark)

    Froes, Isabel

    2017-01-01

    these practices, which compose the taxonomy of tablet play. My contribution lies in identifying and proposing a series of theoretical concepts that complement recent theories related to play and digital literacy studies. The data collected through observations informed some noteworthy aspects, including how...... with tablets’ physical and digital affordances shape children’s digital play. This thesis presents how young children’s current practices when playing with tablets inform digital experiences in Denmark and Japan. Through an interdisciplinary lens and a grounded theory approach, I have identified and mapped...... vocabulary in children’s digital play experiences. These early digital experiences set the rules for the playgrounds and assert digital tablets as twenty-first-century toys, shaping young children’s playful literacy....

  14. State of Play of Digital Games for Empowerment and Inclusion: A Review of the Literature and Empirical Cases

    OpenAIRE

    Bleumers, Lizzy; ALL Anissa; Mariën, Ilse; SHURMANS Dana; Van Looy, Jan; Jacobs, An; Willaert, Koen; De Grove, Frederik

    2012-01-01

    This report presents the 'state of play' of knowledge of how digital games can work as empowerment tools to support social inclusion processes and policy. The report brings together for the first time a review of theoretical and empirical research in a variety of disciplines, especially from learning, social inclusion, e-inclusion and innovation studies to build a framework to help understanding of the potential of games for inclusion and empowerment. It uses this framework to analyse seven w...

  15. Everyday imagery

    DEFF Research Database (Denmark)

    Peters, Chris; Allan, Stuart

    2016-01-01

    User-based research into the lived experiences associated with smartphone camera practices – in particular, the taking, storing, curating, and sharing of personal imagery in the digital media sphere – remains scarce, especially in contrast to their increasing ubiquity. Accordingly, this article...... open space up for emergent forms of visual communication. Specifically, our close interpretive reading indicates four key factors underlying the moments privileged when using smartphone cameras, showing how such instances deviate from the mundane, are related to ‘positive’ emotions, evince strong...... the gradual disappearance of media from personal consciousness in a digital age. If ceaselessness is a defining characteristic of the current era, our analysis reveals that the use of smartphone cameras is indicative of people affectively and self-consciously deploying the technology to try to arrest...

  16. An automated, open-source pipeline for mass production of digital elevation models (DEMs) from very-high-resolution commercial stereo satellite imagery

    Science.gov (United States)

    Shean, David E.; Alexandrov, Oleg; Moratto, Zachary M.; Smith, Benjamin E.; Joughin, Ian R.; Porter, Claire; Morin, Paul

    2016-06-01

    We adapted the automated, open source NASA Ames Stereo Pipeline (ASP) to generate digital elevation models (DEMs) and orthoimages from very-high-resolution (VHR) commercial imagery of the Earth. These modifications include support for rigorous and rational polynomial coefficient (RPC) sensor models, sensor geometry correction, bundle adjustment, point cloud co-registration, and significant improvements to the ASP code base. We outline a processing workflow for ∼0.5 m ground sample distance (GSD) DigitalGlobe WorldView-1 and WorldView-2 along-track stereo image data, with an overview of ASP capabilities, an evaluation of ASP correlator options, benchmark test results, and two case studies of DEM accuracy. Output DEM products are posted at ∼2 m with direct geolocation accuracy of computing environment. We are leveraging these resources to produce dense time series and regional mosaics for the Earth's polar regions.

  17. Semi-Automated Approach for Mapping Urban Trees from Integrated Aerial LiDAR Point Cloud and Digital Imagery Datasets

    Science.gov (United States)

    Dogon-Yaro, M. A.; Kumar, P.; Rahman, A. Abdul; Buyuksalih, G.

    2016-09-01

    Mapping of trees plays an important role in modern urban spatial data management, as many benefits and applications inherit from this detailed up-to-date data sources. Timely and accurate acquisition of information on the condition of urban trees serves as a tool for decision makers to better appreciate urban ecosystems and their numerous values which are critical to building up strategies for sustainable development. The conventional techniques used for extracting trees include ground surveying and interpretation of the aerial photography. However, these techniques are associated with some constraints, such as labour intensive field work and a lot of financial requirement which can be overcome by means of integrated LiDAR and digital image datasets. Compared to predominant studies on trees extraction mainly in purely forested areas, this study concentrates on urban areas, which have a high structural complexity with a multitude of different objects. This paper presented a workflow about semi-automated approach for extracting urban trees from integrated processing of airborne based LiDAR point cloud and multispectral digital image datasets over Istanbul city of Turkey. The paper reveals that the integrated datasets is a suitable technology and viable source of information for urban trees management. As a conclusion, therefore, the extracted information provides a snapshot about location, composition and extent of trees in the study area useful to city planners and other decision makers in order to understand how much canopy cover exists, identify new planting, removal, or reforestation opportunities and what locations have the greatest need or potential to maximize benefits of return on investment. It can also help track trends or changes to the urban trees over time and inform future management decisions.

  18. SEMI-AUTOMATED APPROACH FOR MAPPING URBAN TREES FROM INTEGRATED AERIAL LiDAR POINT CLOUD AND DIGITAL IMAGERY DATASETS

    Directory of Open Access Journals (Sweden)

    M. A. Dogon-Yaro

    2016-09-01

    Full Text Available Mapping of trees plays an important role in modern urban spatial data management, as many benefits and applications inherit from this detailed up-to-date data sources. Timely and accurate acquisition of information on the condition of urban trees serves as a tool for decision makers to better appreciate urban ecosystems and their numerous values which are critical to building up strategies for sustainable development. The conventional techniques used for extracting trees include ground surveying and interpretation of the aerial photography. However, these techniques are associated with some constraints, such as labour intensive field work and a lot of financial requirement which can be overcome by means of integrated LiDAR and digital image datasets. Compared to predominant studies on trees extraction mainly in purely forested areas, this study concentrates on urban areas, which have a high structural complexity with a multitude of different objects. This paper presented a workflow about semi-automated approach for extracting urban trees from integrated processing of airborne based LiDAR point cloud and multispectral digital image datasets over Istanbul city of Turkey. The paper reveals that the integrated datasets is a suitable technology and viable source of information for urban trees management. As a conclusion, therefore, the extracted information provides a snapshot about location, composition and extent of trees in the study area useful to city planners and other decision makers in order to understand how much canopy cover exists, identify new planting, removal, or reforestation opportunities and what locations have the greatest need or potential to maximize benefits of return on investment. It can also help track trends or changes to the urban trees over time and inform future management decisions.

  19. Playing with the team: The Development of Communities of Practice in a Digital Storytelling Project

    Directory of Open Access Journals (Sweden)

    Peter John Westman

    2012-12-01

    Full Text Available Since its emergence in the early 1990's, digital storytelling has been variouslyidentified as a new media practice, a consumer and community-led movement,and a textual system. However, given its relative nascent status, there remainsthe need for further academic research focusing on the different forms it hasassumed. During the spring/summer of 2011, I conducted an examination ofTaking the Field (TTF, a digital storytelling project that aims to celebrategrassroots cricket in the UK through the construction of stories by village andcounty-level clubs. In contrast to most previous projects that aim to have theparticipants “speak” by constructing their own stories, TTF stories are researchedand constructed by project staff with the assistance of the clubs.My research centers on the experiences of two clubs in the project, Blaina CC andSpondon CC, through interviews and elicitation techniques with club andcommunity members using the completed stories and the artifacts used in theirconstruction. Through the theoretical framework of Gell's anthropology of art, Iconsider how digital stories act as objects that mediate social agency during theircreation and how the structure of this type of project contributes to the formationof communities of practice in the 'performance' of collective identity.

  20. Navigating digital publics for playful production: A cross-case analysis of two interest-driven online communities

    Directory of Open Access Journals (Sweden)

    Ksenia A. Korobkova

    2016-05-01

    Full Text Available This article argues that the set of skills and strategies associated with managing digital publics online represent an emergent literacy practice of importance to literacy researchers and educators. Drawing on two case studies of online communities popular with contemporary youth to learn, play, and socialize, we articulate how youth participants strategically negotiate multiple audiences online with varying levels of publicity in order to achieve learning outcomes. In one case, players of a popular production-centered video game share their content in ways that garner the specific kind of audience and feedback they need for their projects. In another, members of an online fan fiction community analyze and negotiate expectations of their audience in order to craft media that garners attention and sustains readership. Both examples identify how skills centered on navigating and managing publics – that is, multiple audiences that are permeable across a wider public online – constitute a recognizable and important “new literacy” in digitally mediated learning environments. We situate our empirical studies in sociocultural theories of learning and historicize the work in contemporary digital cultures and the general move from the writer-reader relationship to writer-audience relationships to more complex relationships within digital publics. The article ends with considerations for literacy researchers, policymakers, and practitioners interested in technology-mediated practices of today’s youth.

  1. The trend toward digital in medical education – playing devil's advocate

    Directory of Open Access Journals (Sweden)

    Al-Jibury O

    2015-10-01

    Full Text Available Osama Al-jibury, Maroof Ahmed, Muhammad Najim, Riham Rabee, Muhammad Ashraf, Yusuf Sherwani, Osama AnjumDepartment of Medicine, Imperial College Medical School, London, UKDigitalization of medical resources has completely revolutionized medical education. Nowadays, medical information is readily accessible online. If a doctor needs to learn about Lesch–Nyhan syndrome, he or she can just search online – thousands of digital resources, explaining everything from simple pathophysiology to the latest genetic research into the condition, can be found; even videos of patients with the condition are available and easily located by using a search engine such as Google. Could there possibly be any downsides to this?

  2. [The impact of digital media on relations, play and learning in young children].

    Science.gov (United States)

    Panayoty-Vanhoutte, Carole

    2015-01-01

    Screens are occupying an increasingly bigger place in families, which can have harmful consequences on the development of young children. To ensure their harmonious construction, children must not be deprived of games which involve interaction with the outside world and adults. They need exchanges with their parents and with professionals aware of the role which they have to play in a child's discoveries.

  3. Combined synthetic aperture radar/Landsat imagery

    Science.gov (United States)

    Marque, R. E.; Maurer, H. E.

    1978-01-01

    This paper presents the results of investigations into merging synthetic aperture radar (SAR) and Landsat multispectral scanner (MSS) images using optical and digital merging techniques. The unique characteristics of airborne and orbital SAR and Landsat MSS imagery are discussed. The case for merging the imagery is presented and tradeoffs between optical and digital merging techniques explored. Examples of Landsat and airborne SAR imagery are used to illustrate optical and digital merging. Analysis of the merged digital imagery illustrates the improved interpretability resulting from combining the outputs from the two sensor systems.

  4. Geologic analyses of LANDSAT-1 multispectral imagery of a possible power plant site employing digital and analog image processing. [in Pennsylvania

    Science.gov (United States)

    Lovegreen, J. R.; Prosser, W. J.; Millet, R. A.

    1975-01-01

    A site in the Great Valley subsection of the Valley and Ridge physiographic province in eastern Pennsylvania was studied to evaluate the use of digital and analog image processing for geologic investigations. Ground truth at the site was obtained by a field mapping program, a subsurface exploration investigation and a review of available published and unpublished literature. Remote sensing data were analyzed using standard manual techniques. LANDSAT-1 imagery was analyzed using digital image processing employing the multispectral Image 100 system and using analog color processing employing the VP-8 image analyzer. This study deals primarily with linears identified employing image processing and correlation of these linears with known structural features and with linears identified manual interpretation; and the identification of rock outcrops in areas of extensive vegetative cover employing image processing. The results of this study indicate that image processing can be a cost-effective tool for evaluating geologic and linear features for regional studies encompassing large areas such as for power plant siting. Digital image processing can be an effective tool for identifying rock outcrops in areas of heavy vegetative cover.

  5. Why girls play digital games: an empirical study into the relations between gender, motivations and genre

    OpenAIRE

    2011-01-01

    In recent years, several studies have explored the motivations for playing different game genres such as MMO (Yee, 2006a, 2006b) and FPS (Jansz & Tanis, 2007). Others have taken steps towards creating an integrated framework for use across genres (Sherry, Lucas, Greenberg, & Lachlan, 2006). Despite the strong gender bias of the game industry, however, none of these studies have tackled the issue of gender differences in motivations. This paper aims to fill this gap by exploring the relation b...

  6. Facebook levels the playing field: Dyslexic students learning through digital literacies

    OpenAIRE

    Barden, Owen

    2014-01-01

    Dyslexia has an ambivalent relationship with learning technology. Any potential gains may be nullified if the technology is perceived to exacerbate stigma. This paper examines the use of an ‘everyday’ technology, Facebook, by a small group of sixth form students labelled as dyslexic. ‘Levelling the playing field’ is a phrase the participants used often when discussing what they wanted from learning technology. Because dyslexia usually is defined in terms of significant difficulties with liter...

  7. Digital Game Playing and Direct and Indirect Aggression in Early Adolescence: The Roles of Age, Social Intelligence, and Parent-Child Communication

    Science.gov (United States)

    Wallenius, Marjut; Punamaki, Raija-Leena; Rimpela, Arja

    2007-01-01

    The roles of age, social intelligence and parent-child communication in moderating the association between digital game playing and direct and indirect aggression were examined in 478 Finnish 10- and 13-year-old schoolchildren based on self-reports. The results confirmed that digital game violence was directly associated with direct aggression,…

  8. Does Performance in Digital Reading Relate to Computer Game Playing? A Study of Factor Structure and Gender Patterns in 15-Year-Olds' Reading Literacy Performance

    Science.gov (United States)

    Rasmusson, Maria; Åberg-Bengtsson, Lisbeth

    2015-01-01

    Data from a Swedish PISA-sample were used (1) to identify a digital reading factor, (2) to investigate gender differences in this factor (if found), and (3) to explore how computer game playing might relate to digital reading performance and gender. The analyses were conducted with structural equation modeling techniques. In addition to an overall…

  9. Baldur’s Gate and History: Race and Alignment in Digital Role-Playing Games

    OpenAIRE

    Warnes, Christopher

    2005-01-01

    This paper, part of a wider study of the connections between romance, fantasy and political rhetoric in the twenty-first century, seeks to historicise some of the defining features of Dungeons and Dragons (D&D)-based role playing games, using as examples the Bioware games, Baldur’s Gate I and II and Neverwinter Nights. The starting point of the paper is that technical, procedural and aesthetic innovations in gaming arise from contexts given by history, and by social and cultural processes...

  10. Arctic Digital Elevation Models (DEMs) generated by Surface Extraction from TIN-Based Searchspace Minimization (SETSM) algorithm from RPCs-based Imagery

    Science.gov (United States)

    Noh, M. J.; Howat, I. M.; Porter, C. C.; Willis, M. J.; Morin, P. J.

    2016-12-01

    The Arctic is undergoing rapid change associated with climate warming. Digital Elevation Models (DEMs) provide critical information for change measurement and infrastructure planning in this vulnerable region, yet the existing quality and coverage of DEMs in the Arctic is poor. Low contrast and repeatedly-textured surfaces, such as snow and glacial ice and mountain shadows, all common in the Arctic, challenge existing stereo-photogrammetric techniques. Submeter resolution, stereoscopic satellite imagery with high geometric and radiometric quality, and wide spatial coverage are becoming increasingly accessible to the scientific community. To utilize these imagery for extracting DEMs at a large scale over glaciated and high latitude regions we developed the Surface Extraction from TIN-based Searchspace Minimization (SETSM) algorithm. SETSM is fully automatic (i.e. no search parameter settings are needed) and uses only the satellite rational polynomial coefficients (RPCs). Using SETSM, we have generated a large number of DEMs (> 100,000 scene pair) from WorldView, GeoEye and QuickBird stereo images collected by DigitalGlobe Inc. and archived by the Polar Geospatial Center (PGC) at the University of Minnesota through an academic licensing program maintained by the US National Geospatial-Intelligence Agency (NGA). SETSM is the primary DEM generation software for the US National Science Foundation's ArcticDEM program, with the objective of generating high resolution (2-8m) topography for the entire Arctic landmass, including seamless DEM mosaics and repeat DEM strips for change detection. ArcticDEM is collaboration between multiple US universities, governmental agencies and private companies, as well as international partners assisting with quality control and registration. ArcticDEM is being produced using the petascale Blue Waters supercomputer at the National Center for Supercomputer Applications at the University of Illinois. In this paper, we introduce the SETSM

  11. Mapping mine wastes and analyzing areas affected by selenium-rich water runoff in southeast Idaho using AVIRIS imagery and digital elevation data

    Science.gov (United States)

    Mars, J.C.; Crowley, J.K.

    2003-01-01

    Remotely sensed hyperspectral and digital elevation data from southeastern Idaho are combined in a new method to assess mine waste contamination. Waste rock from phosphorite mining in the area contains selenium, cadmium, vanadium, and other metals. Toxic concentrations of selenium have been found in plants and soils near some mine waste dumps. Eighteen mine waste dumps and five vegetation cover types in the southeast Idaho phosphate district were mapped by using Airborne Visible-Infrared Imaging Spectrometer (AVIRIS) imagery and field data. The interaction of surface water runoff with mine waste was assessed by registering the AVIRIS results to digital elevation data, enabling determinations of (1) mine dump morphologies, (2) catchment watershed areas above each mine dump, (3) flow directions from the dumps, (4) stream gradients, and (5) the extent of downstream wetlands available for selenium absorption. Watersheds with the most severe selenium contamination, such as the South Maybe Canyon watershed, are associated with mine dumps that have large catchment watershed areas, high stream gradients, a paucity of downstream wetlands, and dump forms that tend to obstruct stream flow. Watersheds associated with low concentrations of dissolved selenium, such as Angus Creek, have mine dumps with small catchment watershed areas, low stream gradients, abundant wetlands vegetation, and less obstructing dump morphologies. ?? 2002 Elsevier Science Inc. All rights reserved.

  12. Mapeamento do saldo de radiação com imagens Landsat 5 e modelo de elevação digital Mapping net radiation using Landsat 5 imagery and digital elevation model

    Directory of Open Access Journals (Sweden)

    Frederico T. Di Pace

    2008-08-01

    Full Text Available O saldo de radiação é um importante componente do balanço de energia e tem grande relevância em estudos de evapotranspiração em áreas irrigadas e em bacias hidrográficas. Obteve-se, através do estudo, a estimativa do saldo de radiação à superfície terrestre, mediante imagens multiespectrais do Mapeador Temático do satélite Landsat 5, utilizando-se o SEBAL (Surface Energy Balance Algorithm for Land e o MED (Modelo de Elevação Digital. Os cálculos foram realizados com e sem utilização do MED, nos dias 04 de dezembro de 2000 e 04 de outubro de 2001. A temperatura da superfície (Ts e os valores do albedo estimados com o MED em 04/12/2000, foram um pouco superiores aos valores de Ts estimados sem a utilização deste modelo. Os resultados demonstraram que na estimativa do saldo de radiação com base em imagens MT - Landsat 5, se deve levar em consideração os efeitos topográficos da região de estudo.Net radiation is an important component of the surface energy balance in studies of evapotranspiration of irrigated crops and in evaporation of hydrological basins. The objective of this research was to determine the surface radiation balance, by using multispectral imagery of the Thematic Mapper (Landsat 5 satellite. In this study the SEBAL (Surface Energy Balance Algorithm for Land and DEM (Digital Elevation Model were used in order to correct the albedo and vegetation indices under the influence of the slope aspects were used for each study area. TM (Thematic Mapper imageries were used for two different dates (December 4, 2000 and October 4, 2001. The calculations were accomplished with and without use of the DEM. The land surface temperature and albedo values with DEM were larger than without DEM in both years, for two selected areas. Results also show that for obtaining net radiation based on imagery of the TM - Landsat 5 the topographical effects of the study area must be considered.

  13. National Agriculture Imagery Program (NAIP) Orthorectified Photomosaic for Washita Battlefield National Historic Site Vegetation Mapping Project

    Data.gov (United States)

    National Park Service, Department of the Interior — This data set contains imagery from the National Agriculture Imagery Program (NAIP). NAIP acquires digital ortho imagery during the agricultural growing seasons in...

  14. NAIP Digital Ortho Photo Image 2010

    Data.gov (United States)

    Kansas Data Access and Support Center — This data set contains imagery from the National Agriculture Imagery Program (NAIP). NAIP acquires digital ortho imagery during the agricultural growing seasons in...

  15. USDA-FSA-APFO Digital Ortho Mosaic

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — This data set contains imagery from the National Agricultural Imagery Program (NAIP). NAIP acquires digital ortho imagery during the agricultural growing seasons in...

  16. Aerial Photography and Imagery, Ortho-Corrected, Digital orthophographs (DOPs) were derived from black and white aerial photographs taken in the spring of 2000. The DOP scale is 1:4800 (1" = 400') rectified to 18" pixels., Published in 2000, 1:4800 (1in=400ft) scale, Manitowoc County Government.

    Data.gov (United States)

    NSGIC Local Govt | GIS Inventory — Aerial Photography and Imagery, Ortho-Corrected dataset current as of 2000. Digital orthophographs (DOPs) were derived from black and white aerial photographs taken...

  17. Playful intelligence digitizing tradition

    CERN Document Server

    Sussman, Henry

    2014-01-01

    This is a guide, in theory and in practice, to how current technological changes have impacted our interaction with texts and with each other. Henry Sussman rereads pivotal moments in literary, philosophical and cultural modernity as anticipating the cybernetic discourse that has increasingly defined theory since the computer revolution. Cognitive science, psychoanalysis and systems theory are paralleled to current trends in literary and philosophical theory. Chapters alternate between theory and readings of literary texts, resulting in a broad but rigorously grounded framework for the relatio

  18. Digital Game Playing and Direct and Indirect Aggression in Early Adolescence: The Roles of Age, Social Intelligence, and Parent-Child Communication.

    Science.gov (United States)

    Wallenius, Marjut; Punamäki, Raija-Leena; Rimpelä, Arja

    2007-04-01

    The roles of age, social intelligence and parent-child communication in moderating the association between digital game playing and direct and indirect aggression were examined in 478 Finnish 10- and 13-year-old schoolchildren based on self-reports. The results confirmed that digital game violence was directly associated with direct aggression, especially at age 10, but only among boys. The moderating role of social intelligence was substantiated among older boys: game violence was associated with indirect aggression among those with high level of social intelligence. Further, as hypothesized, digital game playing was associated with direct aggression especially when parent-child communication was poor, but only among boys. Our findings emphasize the importance of individual and situational factors as moderators of the link between game violence and aggression.

  19. Aerial Photography and Imagery, Ortho-Corrected, 2005 1-Foot Resolution Digital Imagery, Published in 2005, 1:2400 (1in=200ft) scale, Dane County Land Information Office.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Aerial Photography and Imagery, Ortho-Corrected dataset, published at 1:2400 (1in=200ft) scale, was produced all or in part from Orthoimagery information as of...

  20. Incorporation of satellite remote sensing pan-sharpened imagery into digital soil prediction and mapping models to characterize soil property variability in small agricultural fields

    Science.gov (United States)

    Xu, Yiming; Smith, Scot E.; Grunwald, Sabine; Abd-Elrahman, Amr; Wani, Suhas P.

    2017-01-01

    Soil prediction models based on spectral indices from some multispectral images are too coarse to characterize spatial pattern of soil properties in small and heterogeneous agricultural lands. Image pan-sharpening has seldom been utilized in Digital Soil Mapping research before. This research aimed to analyze the effects of pan-sharpened (PAN) remote sensing spectral indices on soil prediction models in smallholder farm settings. This research fused the panchromatic band and multispectral (MS) bands of WorldView-2, GeoEye-1, and Landsat 8 images in a village in Southern India by Brovey, Gram-Schmidt and Intensity-Hue-Saturation methods. Random Forest was utilized to develop soil total nitrogen (TN) and soil exchangeable potassium (Kex) prediction models by incorporating multiple spectral indices from the PAN and MS images. Overall, our results showed that PAN remote sensing spectral indices have similar spectral characteristics with soil TN and Kex as MS remote sensing spectral indices. There is no soil prediction model incorporating the specific type of pan-sharpened spectral indices always had the strongest prediction capability of soil TN and Kex. The incorporation of pan-sharpened remote sensing spectral data not only increased the spatial resolution of the soil prediction maps, but also enhanced the prediction accuracy of soil prediction models. Small farms with limited footprint, fragmented ownership and diverse crop cycle should benefit greatly from the pan-sharpened high spatial resolution imagery for soil property mapping. Our results show that multiple high and medium resolution images can be used to map soil properties suggesting the possibility of an improvement in the maps' update frequency. Additionally, the results should benefit the large agricultural community through the reduction of routine soil sampling cost and improved prediction accuracy.

  1. Group play

    DEFF Research Database (Denmark)

    Tychsen, Anders; Hitchens, Michael; Brolund, Thea

    2008-01-01

    of group dynamics, the influence of the fictional game characters and the comparative play experience between the two formats. The results indicate that group dynamics and the relationship between the players and their digital characters, are integral to the quality of the gaming experience in multiplayer......Role-playing games (RPGs) are a well-known game form, existing in a number of formats, including tabletop, live action, and various digital forms. Despite their popularity, empirical studies of these games are relatively rare. In particular there have been few examinations of the effects...... of the various formats used by RPGs on the gaming experience. This article presents the results of an empirical study, examining how multi-player tabletop RPGs are affected as they are ported to the digital medium. Issues examined include the use of disposition assessments to predict play experience, the effect...

  2. Evaluation of Different Change Detection Techniques in Forestry for Improvement of Spatial Objects Extraction Algorithms by Very High Resolution Remote Sensing Digital Imagery

    Science.gov (United States)

    Amiri, N.

    2013-09-01

    Earth observations which are being useable by spatial analysis ability play an important role in detecting, management and solving environmental problems such as climate changes, deforestation, disasters, land use, water resource and carbon cycle. Remote sensing technology in combination with geospatial information system (GIS) can render reliable information on vegetation cover. Satellite Remote sensed data and GIS for land cover/use with its changes is a key to many diverse applications such as Forestry. Change detection can be defined as the process of identifying differences in the state of an object or phenomenon by observing it at different times. The analysis of the spatial extent and temporal change of vegetation cover (Forest) by using remotely sensed data is critically importance to natural resource management sciences. The main aim of this review paper is to go through the different change detection methods and algorithms based on very high resolution remote sensing imagery data, evaluate the quality of the spatial individual crown cover extraction in forests with high density, analyse, compare the results by optimized performance of control data for the same objects to provide the improvement in technique for detection and improve the mathematical sides of the change detection algorithms for high dense forests regions with different boundaries.

  3. Digitization

    DEFF Research Database (Denmark)

    Finnemann, Niels Ole

    2014-01-01

    Processes of digitization have for years represented a major trend in the developments of modern society but have only recently been related to processes of mediatization. The purpose of this article is to look into the relation between the concepts of mediatization and digitization and to clarify...... what a concept of digital media might add to the understanding of processes of mediatization and what the concept of mediatization might add to the understanding of digital media. It is argued that digital media open an array of new trajectories in human communication, trajectories which were...... not anticipated in previous conceptualizations of media and mediatization. If digital media are to be included, the concept of mediatization has to be revised and new parameters are to be built into the concept of media. At the same time it is argued that the concept of mediatization still provides a variety...

  4. A satellite digital controller or 'play that PID tune again, Sam'. [Position, Integral, Derivative feedback control algorithm for design strategy

    Science.gov (United States)

    Seltzer, S. M.

    1976-01-01

    The problem discussed is to design a digital controller for a typical satellite. The controlled plant is considered to be a rigid body acting in a plane. The controller is assumed to be a digital computer which, when combined with the proposed control algorithm, can be represented as a sampled-data system. The objective is to present a design strategy and technique for selecting numerical values for the control gains (assuming position, integral, and derivative feedback) and the sample rate. The technique is based on the parameter plane method and requires that the system be amenable to z-transform analysis.

  5. 2013 Bridge Creek, OR 4-Band Imagery

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — In March 2012, WSI (Watershed Sciences, Inc.) was contracted by Woolpert, Inc. (Woolpert) to collect Light Detection and Ranging (LiDAR) data and digital imagery in...

  6. OrthoImagery Submission for Nobles, MN

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has been removed for...

  7. Chapman's Reef Oculina Banks Clelia Dive 621 2001 Digital Imagery - Captured from Videotapes taken during Submersible Dives to the Oculina Banks Deep Sea Coral Reefs (NODC Accession 0047190)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Digitial imagery, mpegs and jpegs, captured from mini-DV magnetic videotapes collected with an underwater 3-chip CCD color video camera, deployed from the research...

  8. Chapman's Reef Oculina Banks Clelia Dive 620 2001 Digital Imagery - Captured from Videotapes taken during Submersible Dives to the Oculina Banks Deep Sea Coral Reefs (NODC Accession 0047190)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Digitial imagery, mpegs and jpegs, captured from mini-DV magnetic videotapes collected with an underwater 3-chip CCD color video camera, deployed from the research...

  9. Cape Canaveral Oculina Banks Clelia Dive 616 2001 Digital Imagery - Captured from Videotapes taken during Submersible Dives to the Oculina Banks Deep Sea Coral Reefs (NODC Accession 0047190)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Digitial imagery, mpegs and jpegs, captured from mini-DV magnetic videotapes collected with an underwater 3-chip CCD color video camera, deployed from the research...

  10. Sebastian Pinnacles, Oculina Banks Clelia Dive 614 2001 Digital Imagery - Captured from Videotapes taken during Submersible Dives to the Oculina Banks Deep Sea Coral Reefs (NODC Accession 0047190)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Digitial imagery, mpegs and jpegs, captured from mini-DV magnetic videotapes collected with an underwater 3-chip CCD color video camera, deployed from the research...

  11. Jeff's Reef Oculina Banks Clelia Dive 607 2001 Digital Imagery - Captured from Videotapes taken during Submersible Dives to the Oculina Banks Deep Sea Coral Reefs (NODC Accession 0047190)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Digitial imagery, mpegs and jpegs, captured from mini-DV magnetic videotapes collected with an underwater 3-chip CCD color video camera, deployed from the research...

  12. Sebastian Pinnacles, Oculina Banks Clelia Dive 615 2001 Digital Imagery - Captured from Videotapes taken during Submersible Dives to the Oculina Banks Deep Sea Coral Reefs (NODC Accession 0047190)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Digitial imagery, mpegs and jpegs, captured from mini-DV magnetic videotapes collected with an underwater 3-chip CCD color video camera, deployed from the research...

  13. Jeff's Reef Oculina Banks Clelia Dive 606 2001 Digital Imagery - Captured from Videotapes taken during Submersible Dives to the Oculina Banks Deep Sea Coral Reefs (NODC Accession 0047190)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Digitial imagery, mpegs and jpegs, captured from mini-DV magnetic videotapes collected with an underwater 3-chip CCD color video camera, deployed from the research...

  14. Eau Gallie, Oculina Banks Clelia Dive 608 2001 Digital Imagery - Captured from Videotapes taken during Submersible Dives to the Oculina Banks Deep Sea Coral Reefs (NODC Accession 0047190)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Digitial imagery, mpegs and jpegs, captured from mini-DV magnetic videotapes collected with an underwater 3-chip CCD color video camera, deployed from the research...

  15. Eau Galllie Oculina Banks Clelia Dive 609 2001 Digital Imagery - Captured from Videotapes tken during Submersible Dives to the Oculina Banks Deep Sea Coral Reefs (NODC Accession 0047190)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Digitial imagery, mpegs and jpegs, captured from mini-DV magnetic videotapes collected with an underwater 3-chip CCD color video camera, deployed from the research...

  16. Aerial Photography and Imagery, Ortho-Corrected, Maui Digital Raster Graphic, Published in 2004, 1:24000 (1in=2000ft) scale, U.S. Geological Survey.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Aerial Photography and Imagery, Ortho-Corrected dataset, published at 1:24000 (1in=2000ft) scale, was produced all or in part from Orthoimagery information as...

  17. Aerial Photography and Imagery, Ortho-Corrected, Molokai Digital Raster Graphic, Published in 2004, 1:24000 (1in=2000ft) scale, U.S. Geological Survey.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Aerial Photography and Imagery, Ortho-Corrected dataset, published at 1:24000 (1in=2000ft) scale, was produced all or in part from Hardcopy Maps information as...

  18. Aerial Photography and Imagery, Ortho-Corrected, Maui County Digital Orthophoto Mosaic, Published in 2003, 1:24000 (1in=2000ft) scale, U.S. Geological Survey.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Aerial Photography and Imagery, Ortho-Corrected dataset, published at 1:24000 (1in=2000ft) scale, was produced all or in part from Hardcopy Maps information as...

  19. Aerial Photography and Imagery, Ortho-Corrected, Oahu Digital Orthophoto Mosaic, Published in 2003, 1:24000 (1in=2000ft) scale, U.S. Geological Survey.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Aerial Photography and Imagery, Ortho-Corrected dataset, published at 1:24000 (1in=2000ft) scale, was produced all or in part from Orthoimagery information as...

  20. Sebastian Pinnacles Oculina Banks Clelia Dive 618 2001 Digital Imagery - Captured from Videotapes taken during Submersible Dives to the Oculina Banks Deep Sea Coral Reefs (NODC Accession 0047190)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Digitial imagery, mpegs and jpegs, captured from mini-DV magnetic videotapes collected with an underwater 3-chip CCD color video camera, deployed from the research...

  1. Aerial Photography and Imagery, Ortho-Corrected, Oahu Digital Raster Graphic, Published in 2003, 1:24000 (1in=2000ft) scale, U.S. Geological Survey.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Aerial Photography and Imagery, Ortho-Corrected dataset, published at 1:24000 (1in=2000ft) scale, was produced all or in part from Hardcopy Maps information as...

  2. Cocoa Beach Oculina Banks Clelia Dive 617 2001 Digital Imagery - Captured from Videotapes taken during Submersible Dives to the Oculina Banks Deep Sea Coral Reefs (NODC Accession 0047190)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Digitial imagery, mpegs and jpegs, captured from mini-DV magnetic videotapes collected with an underwater 3-chip CCD color video camera, deployed from the research...

  3. Sebastian Pinnacles Oculina Banks Clelia Dive 619 2001 Digital Imagery - Captured from Videotapes taken during Submersible Dives to the Oculina Banks Deep Sea Coral Reefs (NODC Accession 0047190)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Digitial imagery, mpegs and jpegs, captured from mini-DV magnetic videotapes collected with an underwater 3-chip CCD color video camera, deployed from the research...

  4. Imagery Data Base Facility

    Data.gov (United States)

    Federal Laboratory Consortium — The Imagery Data Base Facility supports AFRL and other government organizations by providing imagery interpretation and analysis to users for data selection, imagery...

  5. Group play

    DEFF Research Database (Denmark)

    Tychsen, Anders; Hitchens, Michael; Brolund, Thea

    2008-01-01

    Role-playing games (RPGs) are a well-known game form, existing in a number of formats, including tabletop, live action, and various digital forms. Despite their popularity, empirical studies of these games are relatively rare. In particular there have been few examinations of the effects of the v......Role-playing games (RPGs) are a well-known game form, existing in a number of formats, including tabletop, live action, and various digital forms. Despite their popularity, empirical studies of these games are relatively rare. In particular there have been few examinations of the effects...... of the various formats used by RPGs on the gaming experience. This article presents the results of an empirical study, examining how multi-player tabletop RPGs are affected as they are ported to the digital medium. Issues examined include the use of disposition assessments to predict play experience, the effect...... RPGs, with the first being of greater importance to digital games and the latter to the tabletop version....

  6. Creating high-resolution bare-earth digital elevation models (DEMs) from stereo imagery in an area of densely vegetated deciduous forest using combinations of procedures designed for lidar point cloud filtering

    Science.gov (United States)

    DeWitt, Jessica D.; Warner, Timothy A.; Chirico, Pete; Bergstresser, Sarah

    2017-01-01

    For areas of the world that do not have access to lidar, fine-scale digital elevation models (DEMs) can be photogrammetrically created using globally available high-spatial resolution stereo satellite imagery. The resultant DEM is best termed a digital surface model (DSM) because it includes heights of surface features. In densely vegetated conditions, this inclusion can limit its usefulness in applications requiring a bare-earth DEM. This study explores the use of techniques designed for filtering lidar point clouds to mitigate the elevation artifacts caused by above ground features, within the context of a case study of Prince William Forest Park, Virginia, USA. The influences of land cover and leaf-on vs. leaf-off conditions are investigated, and the accuracy of the raw photogrammetric DSM extracted from leaf-on imagery was between that of a lidar bare-earth DEM and the Shuttle Radar Topography Mission DEM. Although the filtered leaf-on photogrammetric DEM retains some artifacts of the vegetation canopy and may not be useful for some applications, filtering procedures significantly improved the accuracy of the modeled terrain. The accuracy of the DSM extracted in leaf-off conditions was comparable in most areas to the lidar bare-earth DEM and filtering procedures resulted in accuracy comparable of that to the lidar DEM.

  7. 2010 Digitized Shoreline for Breton Island, Louisiana (Geographic, NAD83)

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Shorelines were derived from the National Agriculture Imagery Program (NAIP) digital ortho imagery collected on May 10, 2010. This dataset contains digitized...

  8. 2007 Digitized Shoreline for Breton Island, Louisiana (Geographic, NAD83)

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Shorelines were derived from the National Agriculture Imagery Program (NAIP) digital ortho imagery collected on October 11, 2007. This dataset contains digitized...

  9. PLAY ANALYSIS AND DIGITAL PORTFOLIO OF MAJOR OIL RESERVOIRS IN THE PERMIAN BASIN: APPLICATION AND TRANSFER OF ADVANCED GEOLOGICAL AND ENGINEERING TECHNOLOGIES FOR INCREMENTAL PRODUCTION OPPORTUNITIES

    Energy Technology Data Exchange (ETDEWEB)

    Shirley P. Dutton; Eugene M. Kim; Ronald F. Broadhead; Caroline L. Breton; William D. Raatz; Stephen C. Ruppel; Charles Kerans

    2004-05-01

    The Permian Basin of west Texas and southeast New Mexico has produced >30 Bbbl (4.77 x 10{sup 9} m{sup 3}) of oil through 2000, most of it from 1,339 reservoirs having individual cumulative production >1 MMbbl (1.59 x 10{sup 5} m{sup 3}). These significant-sized reservoirs are the focus of this report. Thirty-two Permian Basin oil plays were defined, and each of the 1,339 significant-sized reservoirs was assigned to a play. The reservoirs were mapped and compiled in a Geographic Information System (GIS) by play. Associated reservoir information within linked data tables includes Railroad Commission of Texas reservoir number and district (Texas only), official field and reservoir name, year reservoir was discovered, depth to top of the reservoir, production in 2000, and cumulative production through 2000. Some tables also list subplays. Play boundaries were drawn for each play; the boundaries include areas where fields in that play occur but are <1 MMbbl (1.59 x 10{sup 5} m{sup 3}) of cumulative production. This report contains a summary description of each play, including key reservoir characteristics and successful reservoir-management practices that have been used in the play. The CD accompanying the report contains a pdf version of the report, the GIS project, pdf maps of all plays, and digital data files. Oil production from the reservoirs in the Permian Basin having cumulative production >1 MMbbl (1.59 x 10{sup 5} m{sup 3}) was 301.4 MMbbl (4.79 x 10{sup 7} m{sup 3}) in 2000. Cumulative Permian Basin production through 2000 from these significant-sized reservoirs was 28.9 Bbbl (4.59 x 10{sup 9} m{sup 3}). The top four plays in cumulative production are the Northwest Shelf San Andres Platform Carbonate play (3.97 Bbbl [6.31 x 10{sup 8} m{sup 3}]), the Leonard Restricted Platform Carbonate play (3.30 Bbbl 5.25 x 10{sup 8} m{sup 3}), the Pennsylvanian and Lower Permian Horseshoe Atoll Carbonate play (2.70 Bbbl [4.29 x 10{sup 8} m{sup 3}]), and the San Andres

  10. "In our play we reveal what kind of people we are" - Identity building through gamification and digital badges

    Directory of Open Access Journals (Sweden)

    Jakub Stogr

    2014-08-01

    Full Text Available The lifetime of skills and particular knowledge is getting shorter and the new skills for new future positions are being currently obtained as part of lifelong learning process. Even if a part of these processes is actually recognized and fixed in a form of degrees, certificates and references, some of these achievements could become obsolete, some of them not useful in current practice and sometimes even weird. Nevertheless, these (learning goals were reached; the learning process as such could be a fruitful life-lesson and the key factor for the future success. The huge potential of Mozilla Open Badge Infrastructure (MOBI – and in general any system that provides digital badges as a kind of incentive or reward – is therefore in collaborative setting that allows comparison with other “players” and mapping the progress "against the others". Without the possibility of comparison, building of e-portfolio becomes much more about storytelling, creating diary or blog and adding a context to selected achievements. Any knowledge provider issuing badges should therefore be able to provide additional information about the complexity of learning environment (incl. statistics, not only short description of criteria as requested in MOBI. This paper further describes opportunities and possible practical usage of gamification and digital badges for stimulation of (lifelong learning.

  11. Making sense of gender from digital game play in three-year-old children’s everyday lives: An ethnographic case study

    Directory of Open Access Journals (Sweden)

    Youn Jung Huh

    2015-06-01

    Full Text Available This study explores very young children performing and talking about game characters in their everyday life. In this study, young children’s digital game play is considered as a hybrid and complex site for the children to meet popular culture and their everyday family experiences. This article represents a case study of six three-year-old children and their families, which combines ethnographic methods (spending time with the families, being a participant observer and critical perspectives analysis with Bakhtinian perspectives to construct analyses that have the potential to understand how young children make sense of their everyday roles as a boy or a girl through their game play. This study shows that young children do not directly receive ideological messages from the game media, but they make sense of the messages by decoding and interpreting the game media based on their own theories of everyday life.

  12. Postphenomenological Play

    DEFF Research Database (Denmark)

    Hammar, Emil

    This paper aims to identify an understanding of digital games in virtual environments by using Don Ihde’s (1990) postphenomenological approach to how technology mediates the world to human beings in conjunction with Hans-Georg Gadamer’s (1993) notion of play . Through this tentatively proposed...... amalgamation of theories I point towards an alternative understanding of the relationship between play and game as not only dialectic, but also as socially and ethically relevant qua the design and implementation of the game as technology....

  13. Dynamic aspects of musical imagery.

    Science.gov (United States)

    Halpern, Andrea R

    2012-04-01

    Auditory imagery can represent many aspects of music, such as the starting pitches of a tune or the instrument that typically plays it. In this paper, I concentrate on more dynamic, or time-sensitive aspects of musical imagery, as demonstrated in two recently published studies. The first was a behavioral study that examined the ability to make emotional judgments about both heard and imagined music in real time. The second was a neuroimaging study on the neural correlates of anticipating an upcoming tune, after hearing a cue tune. That study found activation of several sequence-learning brain areas, some of which varied with the vividness of the anticipated musical memory. Both studies speak to the ways in which musical imagery allows us to judge temporally changing aspects of the represented musical experience. These judgments can be quite precise, despite the complexity of generating the rich internal representations of imagery. © 2012 New York Academy of Sciences.

  14. Aerial Photography and Imagery, Ortho-Corrected - Montana 2013 NAIP Orthophotos

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This data set contains imagery from the National Agriculture Imagery Program (NAIP). These data are digital aerial photos, at one meter resolution, of the entire...

  15. The Setup Phase of Project Open Book: A Report to the Commission on Preservation and Access on the Status of an Effort To Convert Microfilm to Digital Imagery.

    Science.gov (United States)

    Conway, Paul; Weaver, Shari

    Digital image quality, indexing structures, and production workflow were the three central issues examined during the second phase--the set-up phase--of Project Open Book, a major effort by Yale University Library to explore the usefulness of digital technologies for preserving and improving access to deteriorating documents. This report outlines…

  16. Observing and characterizing avalanche activity in the Khumbu Himal, Nepal, using Pleiades and airborne HDR imagery

    Science.gov (United States)

    Thompson, Sarah; Nicholson, Lindsey; Klug, Christoph; Rieg, Lorenzo; Sailer, Rudolf; Bucher, Tilman; Brauchle, Jörg

    2017-04-01

    In the high, steep terrain of the Khumbu Himal, Nepal, snow avalanches play an important role in glacier mass balance, and rockfall supplies much of the rock material that forms the extensive debris covers on glaciers in the region. Information on the frequency and size of gravitational mass movements is helpful for understanding current and future glacier behaviour but currently lacking. In this study we use a combination of high resolution Pleiades optical satellite imagery in conjunction with airborne HDR imagery of slopes in deep shadow or overexposed snow slopes, provided by the German Aerospace Center (DLR) MACS system (see Brauchle et al., MM3.2/GI2.12/GMPV6.4/HS11.13/NH8.9/SSS12.24), to undertake a qualitative observational study of the gravitational processes evident in these sets of imagery. We classify the features found and discuss their likely frequency in the context of previously published research findings. Terrain analysis based upon digital terrain models derived from the same Pleiades imagery is used to investigate the slope angle, degree of confinement, curvature and aspect of observed avalanche and rock fall tracks. This work presents a first overview of the types of gravitational slides affecting glaciers of the Khumbu Himal. Subsequent research efforts will focus on attempting to quantify volumes of mass movement using repeat satellite imagery.

  17. Auditory Imagery: Empirical Findings

    Science.gov (United States)

    Hubbard, Timothy L.

    2010-01-01

    The empirical literature on auditory imagery is reviewed. Data on (a) imagery for auditory features (pitch, timbre, loudness), (b) imagery for complex nonverbal auditory stimuli (musical contour, melody, harmony, tempo, notational audiation, environmental sounds), (c) imagery for verbal stimuli (speech, text, in dreams, interior monologue), (d)…

  18. Aerial Photography and Imagery, Oblique, Digital photos taken of PA's Lake Erie shoreline and Presque Isle at an oblique angle at about 1,500-2,000' altitude., Published in 2017, Not Applicable scale, Pennsylvania Coastal Resources Management Program.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Aerial Photography and Imagery, Oblique dataset, published at Not Applicable scale, was produced all or in part from Uncorrected Imagery information as of 2017....

  19. Aerial Photography and Imagery, Oblique, Digital photos taken of PA's Lake Erie shoreline and Presque Isle at an oblique angle at about 1,500-2,000' altitude., Published in 2015, Not Applicable scale, Pennsylvania Coastal Resources Management Program.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Aerial Photography and Imagery, Oblique dataset, published at Not Applicable scale, was produced all or in part from Uncorrected Imagery information as of 2015....

  20. Aerial Photography and Imagery, Ortho-Corrected, This dataset contains imagery of Prince George's County in RGB format. The primary goal was to acquire Countywide Digital Orthoimagery at 6" ground pixel resolution., Published in 2009, 1:1200 (1in=100ft) scale, Maryland National Capital Park and Planning Commission.

    Data.gov (United States)

    NSGIC Non-Profit | GIS Inventory — Aerial Photography and Imagery, Ortho-Corrected dataset current as of 2009. This dataset contains imagery of Prince George's County in RGB format. The primary goal...

  1. Geospatial Information from Satellite Imagery for Geovisualisation of Smart Cities in India

    Science.gov (United States)

    Mohan, M.

    2016-06-01

    In the recent past, there have been large emphasis on extraction of geospatial information from satellite imagery. The Geospatial information are being processed through geospatial technologies which are playing important roles in developing of smart cities, particularly in developing countries of the world like India. The study is based on the latest geospatial satellite imagery available for the multi-date, multi-stage, multi-sensor, and multi-resolution. In addition to this, the latest geospatial technologies have been used for digital image processing of remote sensing satellite imagery and the latest geographic information systems as 3-D GeoVisualisation, geospatial digital mapping and geospatial analysis for developing of smart cities in India. The Geospatial information obtained from RS and GPS systems have complex structure involving space, time and presentation. Such information helps in 3-Dimensional digital modelling for smart cities which involves of spatial and non-spatial information integration for geographic visualisation of smart cites in context to the real world. In other words, the geospatial database provides platform for the information visualisation which is also known as geovisualisation. So, as a result there have been an increasing research interest which are being directed to geospatial analysis, digital mapping, geovisualisation, monitoring and developing of smart cities using geospatial technologies. However, the present research has made an attempt for development of cities in real world scenario particulary to help local, regional and state level planners and policy makers to better understand and address issues attributed to cities using the geospatial information from satellite imagery for geovisualisation of Smart Cities in emerging and developing country, India.

  2. GEOSPATIAL INFORMATION FROM SATELLITE IMAGERY FOR GEOVISUALISATION OF SMART CITIES IN INDIA

    Directory of Open Access Journals (Sweden)

    M. Mohan

    2016-06-01

    Full Text Available In the recent past, there have been large emphasis on extraction of geospatial information from satellite imagery. The Geospatial information are being processed through geospatial technologies which are playing important roles in developing of smart cities, particularly in developing countries of the world like India. The study is based on the latest geospatial satellite imagery available for the multi-date, multi-stage, multi-sensor, and multi-resolution. In addition to this, the latest geospatial technologies have been used for digital image processing of remote sensing satellite imagery and the latest geographic information systems as 3-D GeoVisualisation, geospatial digital mapping and geospatial analysis for developing of smart cities in India. The Geospatial information obtained from RS and GPS systems have complex structure involving space, time and presentation. Such information helps in 3-Dimensional digital modelling for smart cities which involves of spatial and non-spatial information integration for geographic visualisation of smart cites in context to the real world. In other words, the geospatial database provides platform for the information visualisation which is also known as geovisualisation. So, as a result there have been an increasing research interest which are being directed to geospatial analysis, digital mapping, geovisualisation, monitoring and developing of smart cities using geospatial technologies. However, the present research has made an attempt for development of cities in real world scenario particulary to help local, regional and state level planners and policy makers to better understand and address issues attributed to cities using the geospatial information from satellite imagery for geovisualisation of Smart Cities in emerging and developing country, India.

  3. USGS Imagery Overlay Map Service from The National Map - National Geospatial Data Asset (NGDA) High Resolution Orthoimagery

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — USGS_EROS_Ortho_SCALE service contains orthorectified digital aerial photographs and satellite imagery that are commonly referred to as orthoimagery. The imagery in...

  4. Using satellite imagery for crime mapping in South Africa.

    CSIR Research Space (South Africa)

    Schmitz, Peter MU

    2002-12-01

    Full Text Available . Increasingly, technologies such as digital orthophotographs, high-resolution satellite imagery and the global positioning system (GPS) are being used for these areas to provide base mapping and application data for geographical information systems (GIS...

  5. OrthoImagery Submission for Kane County, Illinois, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has been removed for...

  6. OrthoImagery Submission for Monmouth County, New Jersey

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has been removed for...

  7. OrthoImagery Submission for Cumberland County, Illinois, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has beeen removed for...

  8. OrthoImagery submittal for Greene County, Indiana

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth?s surface, collected by a sensor in which object displacement has been removed for...

  9. OrthoImagery submittal for Posey County, Indiana

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth?s surface, collected by a sensor in which object displacement has been removed for...

  10. OrthoImagery submittal for Blackford County, Indiana

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has been removed for...

  11. OrthoImagery Submission for Boone County, Illinois, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has beeen removed for...

  12. OrthoImagery Submission for Knox County, Illinois, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has beeen removed for...

  13. OrthoImagery submittal for Rush County, Indiana

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has been removed for...

  14. OrthoImagery Submission for Christian County, Illinois, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has beeen removed for...

  15. OrthoImagery submittal for Switzerland County, Indiana

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has been removed for...

  16. OrthoImagery Submission for Macon County, Illinois, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has beeen removed for...

  17. OrthoImagery Submission for Moultrie County, Illinois, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has beeen removed for...

  18. OrthoImagery Submission for Logan County, Illinois, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has beeen removed for...

  19. OrthoImagery Submission for Albany County, New York

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has been removed for...

  20. OrthoImagery Submission for Putnam County, New York

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has been removed for...

  1. OrthoImagery Submission for Wabash County, Illinois, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has beeen removed for...

  2. OrthoImagery submittal for Hamilton County, Indiana

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth?s surface, collected by a sensor in which object displacement has been removed for...

  3. OrthoImagery submittal for Wells County, Indiana

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has been removed for...

  4. OrthoImagery Submission for White County, Illinois, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has beeen removed for...

  5. OrthoImagery submittal for Cass County, Indiana

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has been removed for...

  6. OrthoImagery Submission for Gallatin County, Illinois, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has beeen removed for...

  7. OrthoImagery Submission for Saline County, Illinois, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has beeen removed for...

  8. OrthoImagery submittal for Henry County, Indiana

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth?s surface, collected by a sensor in which object displacement has been removed for...

  9. OrthoImagery Submission for Colfax County NE

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the surface of the Earth, collected by a sensor in which object displacement has been removed...

  10. OrthoImagery Submission for Howard County NE

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the surface of the Earth, collected by a sensor in which object displacement has been removed...

  11. OrthoImagery Submission for Christian County, Illinois, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has beeen removed for...

  12. OrthoImagery submittal for Lagrange County, Indiana

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has been removed for...

  13. OrthoImagery Submission for Dawes County NE

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has been removed for...

  14. OrthoImagery Submission for Piatt County, Illinois, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has beeen removed for...

  15. OrthoImagery submittal for Fulton County, Indiana

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has been removed for...

  16. OrthoImagery submittal for Orange County, Indiana

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has been removed for...

  17. OrthoImagery submittal for Carroll County, Indiana

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has been removed for...

  18. OrthoImagery Submission for Monmouth County, New Jersey

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has been removed for...

  19. OrthoImagery submittal for Huntington County, Indiana

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has been removed for...

  20. OrthoImagery Submission for Franklin County, Illinois, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has beeen removed for...

  1. OrthoImagery submittal for White County, Indiana

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has been removed for...

  2. OrthoImagery Submission for Hardin County, Illinois, USA

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has beeen removed for...

  3. A Systems Approach to Identifying Exploration and Development Opportunities in the Illinois Basin: Digital Portifolio of Plays in Underexplored Lower Paleozoic Rocks

    Energy Technology Data Exchange (ETDEWEB)

    Beverly Seyler; David Harris; Brian Keith; Bryan Huff; Yaghoob Lasemi

    2008-06-30

    This study examined petroleum occurrence in Ordovician, Silurian and Devonian reservoirs in the Illinois Basin. Results from this project show that there is excellent potential for additional discovery of petroleum reservoirs in these formations. Numerous exploration targets and exploration strategies were identified that can be used to increase production from these underexplored strata. Some of the challenges to exploration of deeper strata include the lack of subsurface data, lack of understanding of regional facies changes, lack of understanding the role of diagenetic alteration in developing reservoir porosity and permeability, the shifting of structural closures with depth, overlooking potential producing horizons, and under utilization of 3D seismic techniques. This study has shown many areas are prospective for additional discoveries in lower Paleozoic strata in the Illinois Basin. This project implemented a systematic basin analysis approach that is expected to encourage exploration for petroleum in lower Paleozoic rocks of the Illinois Basin. The study has compiled and presented a broad base of information and knowledge needed by independent oil companies to pursue the development of exploration prospects in overlooked, deeper play horizons in the Illinois Basin. Available geologic data relevant for the exploration and development of petroleum reservoirs in the Illinois Basin was analyzed and assimilated into a coherent, easily accessible digital play portfolio. The primary focus of this project was on case studies of existing reservoirs in Devonian, Silurian, and Ordovician strata and the application of knowledge gained to future exploration and development in these underexplored strata of the Illinois Basin. In addition, a review of published reports and exploration in the New Albany Shale Group, a Devonian black shale source rock, in Illinois was completed due to the recent increased interest in Devonian black shales across the United States. The New

  4. A Systems Approach to Identifying Exploration and Development Opportunities in the Illinois Basin: Digital Portifolio of Plays in Underexplored Lower Paleozoic Rocks [Part 1 of 2

    Energy Technology Data Exchange (ETDEWEB)

    Seyler, Beverly; Harris, David; Keith, Brian; Huff, Bryan; Lasemi, Yaghoob

    2008-06-30

    This study examined petroleum occurrence in Ordovician, Silurian and Devonian reservoirs in the Illinois Basin. Results from this project show that there is excellent potential for additional discovery of petroleum reservoirs in these formations. Numerous exploration targets and exploration strategies were identified that can be used to increase production from these underexplored strata. Some of the challenges to exploration of deeper strata include the lack of subsurface data, lack of understanding of regional facies changes, lack of understanding the role of diagenetic alteration in developing reservoir porosity and permeability, the shifting of structural closures with depth, overlooking potential producing horizons, and under utilization of 3D seismic techniques. This study has shown many areas are prospective for additional discoveries in lower Paleozoic strata in the Illinois Basin. This project implemented a systematic basin analysis approach that is expected to encourage exploration for petroleum in lower Paleozoic rocks of the Illinois Basin. The study has compiled and presented a broad base of information and knowledge needed by independent oil companies to pursue the development of exploration prospects in overlooked, deeper play horizons in the Illinois Basin. Available geologic data relevant for the exploration and development of petroleum reservoirs in the Illinois Basin was analyzed and assimilated into a coherent, easily accessible digital play portfolio. The primary focus of this project was on case studies of existing reservoirs in Devonian, Silurian, and Ordovician strata and the application of knowledge gained to future exploration and development in these underexplored strata of the Illinois Basin. In addition, a review of published reports and exploration in the New Albany Shale Group, a Devonian black shale source rock, in Illinois was completed due to the recent increased interest in Devonian black shales across the United States. The New

  5. Coastal Bend Texas Benthic Habitat Mapping Reprocessed DOQQ Aerial Imagery (NODC Accession 0086051)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — In 2006 and 2007 the NOAA Coastal Services Center purchased services to reprocess existing digital multi-spectral imagery (ADS-40) and create digital benthic habitat...

  6. A cognitive-psychological perspective on Gillespie's "Lights and lattices": some relations among perception, imagery, and thought.

    Science.gov (United States)

    Hunt, H

    1989-04-01

    George Gillespie's valuable observations on light and lattice imageries are played in the context of current research and theory on cognitive imagery (Kosslyn, Pylyshyn), ordinary and lucid dreaming, representational geometric imagery in scientific thought, the author's previous writings on altered states of consciousness, and Gibson's views on perception and imagery. Gillespie's reports show categories of imagery deconstruction and abstraction that link these areas and suggest an integrative model of the varieties of symbolic imagery.

  7. Synthesis of photorealistic whole earth imagery

    Science.gov (United States)

    Rodgers, Todd K.; Papaik, Michael J.; Wylie, Jack L.

    1993-03-01

    A variety of remotely sensed digital imagery data sources now exists that enable the computer graphics synthesis of convincing real, whole Earth images similar to those recorded by orbiting astronauts using conventional photographic techniques. Within data resolution limitations, such data sets can be rendered (using three dimensional graphics technologies) to produce views of our planet from any vantage point. By utilizing time series of collected data in conjunction with synthetic Lambertian lighting models, such views can be animated, in time, to produce dynamic visualizations of the Earth and its weather systems. This paper describes an effort to produce an animation for commercial use in the broadcast industry. To be used for entertainment purposes, the animation was designed to show the dramatic, fluid nature of the Earth as it might appear from space. GOES infra red imagery was collected over the western hemisphere for 15 days at half hour intervals. This imagery was processed to remove sensor artifacts and drop-outs and to create synthetic imagery which appears to the observer to be nature visible wavelength imagery. Cloud free imagery of the entire planet, re- sampled to 4 Km resolution, based on mosaicked AVHRR, polar orbiting imagery was used as a 'base map' to reflect surface features. Graphics techniques to simulate Lambertian lighting of the Earth surface were used to impart the effects of changing solar illumination. All of the graphics elements were then, on a frame by frame basis, digitally composited together, with varying cloud transparency to produce the final rendered imagery, which in turn is recorded onto video tape.

  8. LANDSAT imagery: Description of products available from the CSIR Satellite Remote Sensing Centre

    Science.gov (United States)

    1982-01-01

    An overview of the LANDSAT system is provided along with information to assist prospective users in establishing whether imagery for their areas of interest is available and how to obtain such imagery. Spectral bands, spatial resolution, and digital data are explained as well as worldwide reference system indexing and the identification number assigned to images. The sizes and scales of standard black and white imagery and of false color composite imagery are listed. The format is given for computer compatible tapes and standard enhanced imagery is described. Other information available to users include LANDSAT index maps, catalogs of available imagery, a schedule of overpass dates, and a list of product prices.

  9. NAIP 2015 Imagery Feedback

    Data.gov (United States)

    Farm Service Agency, Department of Agriculture — The NAIP 2015 Imagery Feedback web application allows users to make comments and observations about the quality of the 2015 National Agriculture Imagery Program...

  10. NAIP 2014 Imagery Feedback

    Data.gov (United States)

    Farm Service Agency, Department of Agriculture — The NAIP 2014 Imagery Feedback map allows users to make comments and observations about the quality of the 2014 National Agriculture Imagery Program (NAIP)...

  11. National Agriculture Imagery Program

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — The National Agriculture Imagery Program (NAIP) acquires aerial imagery during the agricultural growing seasons in the continental U.S. A primary goal of the NAIP...

  12. Current Resource Imagery Projects

    Data.gov (United States)

    Farm Service Agency, Department of Agriculture — Map showing coverage of current Resource imagery projects. High resolution/large scale Resource imagery is typically acquired for the U.S. Forest Service and other...

  13. Prospective mental imagery in patients with major depressive disorder or anxiety disorders

    NARCIS (Netherlands)

    Morina, N.; Deeprose, C.; Pusowski, C.; Schmid, M.; Holmes, E.A.

    2011-01-01

    Prospective negative cognitions are suggested to play an important role in maintaining anxiety disorders and major depressive disorder (MDD). However, little is known about positive prospective mental imagery. This study investigated differences in prospective mental imagery among 27 patients with

  14. Cross-adaptation combined with TMS reveals a functional overlap between vision and imagery in the early visual cortex.

    Science.gov (United States)

    Cattaneo, Zaira; Bona, Silvia; Silvanto, Juha

    2012-02-01

    The extent to which the generation of mental images draws on the neuronal representations involved in visual perception has been the subject of much debate. To investigate this overlap, we assessed whether adaptation to visual stimuli affects the ability to generate visual mental images; such cross-adaptation would indicate shared neural representations between visual perception and imagery. Mental imagery was tested using a modified version of the clock task, in which subjects are presented with a digital time (e.g. "2.15") and are asked to generate a mental image of the clock hands displaying this time on an empty clock face. Participants were adapted to oriented lines either on the upper or lower side of the clock face prior to the mental image generation. The results showed that mental imagery was impaired when the mental image had to be generated in the adapted region of visual space (Experiment 1). In Experiment 2, we used TMS to determine whether this adaptation effect occurs in the early visual cortex (EVC; V1/V2). Relative to control conditions (No TMS and Vertex TMS), EVC TMS facilitated mental imagery generation when the mental image spatially overlapped with the adapter. Our results thus show that neuronal representations in the EVC which encode (and are suppressed by) visual input play a causal role in visual mental imagery.

  15. Improving the Discoverability and Availability of Sample Data and Imagery in NASA's Astromaterials Curation Digital Repository Using a New Common Architecture for Sample Databases

    Science.gov (United States)

    Todd, N. S.; Evans, C.

    2015-01-01

    The Astromaterials Acquisition and Curation Office at NASA's Johnson Space Center (JSC) is the designated facility for curating all of NASA's extraterrestrial samples. The suite of collections includes the lunar samples from the Apollo missions, cosmic dust particles falling into the Earth's atmosphere, meteorites collected in Antarctica, comet and interstellar dust particles from the Stardust mission, asteroid particles from the Japanese Hayabusa mission, and solar wind atoms collected during the Genesis mission. To support planetary science research on these samples, NASA's Astromaterials Curation Office hosts the Astromaterials Curation Digital Repository, which provides descriptions of the missions and collections, and critical information about each individual sample. Our office is implementing several informatics initiatives with the goal of better serving the planetary research community. One of these initiatives aims to increase the availability and discoverability of sample data and images through the use of a newly designed common architecture for Astromaterials Curation databases.

  16. Brown County, Wisconsin Digital Orthophotography

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has been removed for...

  17. Art of Play

    DEFF Research Database (Denmark)

    Froes, Isabel Cristina G.; Walker, Kevin

    2011-01-01

    Play is a key element in cultural development, according to the Dutch historian Johan Huizinga. Nowadays many of us interact with other people in online games and social networks, through multiple digital devices. But harnessing playful activities for museum learning is mostly undeveloped. In thi...

  18. Art of Play

    DEFF Research Database (Denmark)

    Froes, Isabel Cristina G.; Walker, Kevin

    2011-01-01

    Play is a key element in cultural development, according to the Dutch historian Johan Huizinga. Nowadays many of us interact with other people in online games and social networks, through multiple digital devices. But harnessing playful activities for museum learning is mostly undeveloped. In thi...

  19. Play vs. Procedures

    DEFF Research Database (Denmark)

    Hammar, Emil

    Through the theories of play by Gadamer (2004) and Henricks (2006), I will show how the relationship between play and game can be understood as dialectic and disruptive, thus challenging understandings of how the procedures of games determine player activity and vice versa. As such, I posit some...... analytical consequences for understandings of digital games as procedurally fixed (Boghost, 2006; Flannagan, 2009; Bathwaite & Sharp, 2010). That is, if digital games are argued to be procedurally fixed and if play is an appropriative and dialectic activity, then it could be argued that the latter affects...

  20. Normalization of satellite imagery

    Science.gov (United States)

    Kim, Hongsuk H.; Elman, Gregory C.

    1990-01-01

    Sets of Thematic Mapper (TM) imagery taken over the Washington, DC metropolitan area during the months of November, March and May were converted into a form of ground reflectance imagery. This conversion was accomplished by adjusting the incident sunlight and view angles and by applying a pixel-by-pixel correction for atmospheric effects. Seasonal color changes of the area can be better observed when such normalization is applied to space imagery taken in time series. In normalized imagery, the grey scale depicts variations in surface reflectance and tonal signature of multi-band color imagery can be directly interpreted for quantitative information of the target.

  1. Comparison of Grid-Based and Segment-Based Estimation of Forest Attributes Using Airborne Laser Scanning and Digital Aerial Imagery

    Directory of Open Access Journals (Sweden)

    Sakari Tuominen

    2011-05-01

    Full Text Available Forest management planning in Finland is currently adopting a new-generation forest inventory method, which is based on interpretation of airborne laser scanning data and digital aerial images. The inventory method is based on a systematic grid, where the grid elements serve as inventory units, for which the laser and aerial image data are extracted and the forest variables estimated. As an alternative or a complement to the grid elements, image segments can be used as inventory units. The image segments are particularly useful as the basis for generation of the silvicultural treatment and cutting units since their boundaries should follow the actual stand borders, whereas when using grid elements it is typical that some of them cover parts of several forest stands. The proportion of the so-called mixed cells depends on the size of the grid elements and the average size and shape of the stands. In this study, we carried out automatic segmentation of two study areas on the basis of laser and aerial image data with a view to delineating micro-stands that are homogeneous in relation to their forest attributes. Further, we extracted laser and aerial image features for both systematic grid elements and segments. For both units, the feature set used for estimating the forest attributes was selected by means of a genetic algorithm. Of the features selected, the majority (61–79% were based on the airborne laser scanning data. Despite the theoretical advantages of the image segments, the laser and aerial features extracted from grid elements seem to work better than features extracted from image segments in estimation of forest attributes. We conclude that estimation should be carried out at grid level with an area-specific combination of features and estimates for image segments to be derived on the basis of the grid-level estimates.

  2. PlayFit: Designing playful activity interventions for teenagers

    NARCIS (Netherlands)

    M. M. Deen; Rob Tieben; Dr. Tilde Bekker; Dr. Janienke Sturm; B.A.M. Ben Schouten

    2011-01-01

    Young people spend a large part of their day sedentary, both at school and at home. The aim of the PlayFit project is to persuade teenagers to lead a more active lifestyle by using digital as well as non-digital games and play. In this position paper, we describe in detail the three key principles o

  3. 三网融合下区域数字图书馆云服务框架研究%Research on Cloud Service Framework of Regional Digital Library under Triple Play

    Institute of Scientific and Technical Information of China (English)

    张龙昌; 刘冬升

    2015-01-01

    The purpose in this paper is to provide a reference for the construction of regional framework for cloud services under the triple play of the digital library environment. By summarizing the recent status of regional digital library construction,combined with the charac-teristics of triple play environment and cloud computing,analyze the relationship between the three,and propose the regional digital librar-y framework model of the triple play service in cloud environment. The model contains the research of user to resources,information ex-change,personalized service in the triple play environment. Through the study of these requirements gradually change existing digital li-brary service model,so digital library of triple play environment can provide users with more accurate and more personalized service, while reducing operating costs in the area of digital libraries.%文中的研究目的是为三网融合环境下区域数字图书馆的云服务框架建设提供参考依据。通过总结当前区域数字图书馆建设近况,结合三网融合环境和云计算的特点,分析三者之间的相互关系,提出了三网融合环境下区域数字化图书馆云服务框架模型。该模型主要包含在三网融合环境下用户对资源、信息交流、个性化服务上的研究。通过这些研究逐步改变现有的数字图书馆服务模式,使三网融合环境下的数字图书馆可以为用户提供更加精准、更加人性化的服务,同时降低区域数字图书馆的运营成本。

  4. Play Matters

    DEFF Research Database (Denmark)

    Sicart (Vila), Miguel Angel

    , but not necessarily fun. Play can be dangerous, addictive, and destructive. Along the way, Sicart considers playfulness, the capacity to use play outside the context of play; toys, the materialization of play--instruments but also play pals; playgrounds, play spaces that enable all kinds of play; beauty......, the aesthetics of play through action; political play -- from Maradona's goal against England in the 1986 World Cup to the hactivist activities of Anonymous; the political, aesthetic, and moral activity of game design; and why play and computers get along so well....

  5. Digital citizens Digital nations: the next agenda

    NARCIS (Netherlands)

    A.W. (Bert) Mulder; M.W. (Martijn) Hartog

    2015-01-01

    DIGITAL CITIZENS CREATE A DIGITAL NATION Citizens will play the lead role as they – in the next phase of the information society – collectively create a digital nation. Personal adoption of information and communication technology will create a digital infrastructure that supports individual and

  6. Digital citizens Digital nations: the next agenda

    NARCIS (Netherlands)

    Mulder, A.W. (Bert); Hartog, M.W. (Martijn)

    2015-01-01

    DIGITAL CITIZENS CREATE A DIGITAL NATION Citizens will play the lead role as they – in the next phase of the information society – collectively create a digital nation. Personal adoption of information and communication technology will create a digital infrastructure that supports individual and col

  7. Using Imagery Rescripting to Treat Major Depression: Theory and Practice

    Science.gov (United States)

    Wheatley, Jon; Hackmann, Ann

    2011-01-01

    This paper considers the role that intrusive memories may play in maintaining depression and the rationale for using imagery rescripting in order to target these memories. Potential mechanisms of change underlying imagery rescripting are discussed. The relationship between depressive rumination and memories is considered, as well as potential…

  8. Play Analysis and Digital Portfolio of Major Oil Reservoirs in the Permian Basin: Application and Transfer of Advanced Geological and Engineering Technologies for Incremental Production Opportunities

    Energy Technology Data Exchange (ETDEWEB)

    Shirley P. Dutton; Eugene M. Kim; Ronald F. Broadhead; Caroline L. Breton; William D. Raatz; Stephen C. Ruppel; Charles Kerans

    2004-01-13

    A play portfolio is being constructed for the Permian Basin in west Texas and southeast New Mexico, the largest onshore petroleum-producing basin in the United States. Approximately 1,300 reservoirs in the Permian Basin have been identified as having cumulative production greater than 1 MMbbl (1.59 x 10{sup 5} m{sup 3}) of oil through 2000. Of these significant-sized reservoirs, approximately 1,000 are in Texas and 300 in New Mexico. There are 32 geologic plays that have been defined for Permian Basin oil reservoirs, and each of the 1,300 major reservoirs was assigned to a play. The reservoirs were mapped and compiled in a Geographic Information System (GIS) by play. The final reservoir shapefile for each play contains the geographic location of each reservoir. Associated reservoir information within the linked data tables includes RRC reservoir number and district (Texas only), official field and reservoir name, year reservoir was discovered, depth to top of the reservoir, production in 2000, and cumulative production through 2000. Some tables also list subplays. Play boundaries were drawn for each play; the boundaries include areas where fields in that play occur but are smaller than 1 MMbbl (1.59 x 10{sup 5} m{sup 3}) of cumulative production. Oil production from the reservoirs in the Permian Basin having cumulative production of >1 MMbbl (1.59 x 10{sup 5} m{sup 3}) was 301.4 MMbbl (4.79 x 10{sup 7} m{sup 3}) in 2000. Cumulative Permian Basin production through 2000 was 28.9 Bbbl (4.59 x 10{sup 9} m{sup 3}). The top four plays in cumulative production are the Northwest Shelf San Andres Platform Carbonate play (3.97 Bbbl [6.31 x 10{sup 8} m{sup 3}]), the Leonard Restricted Platform Carbonate play (3.30 Bbbl [5.25 x 10{sup 8} m{sup 3}]), the Pennsylvanian and Lower Permian Horseshoe Atoll Carbonate play (2.70 Bbbl [4.29 x 10{sup 8} m{sup 3}]), and the San Andres Platform Carbonate play (2.15 Bbbl [3.42 x 10{sup 8} m{sup 3}]). Detailed studies of three reservoirs

  9. Playful Gaming.

    Science.gov (United States)

    Makedon, Alexander

    A philosophical analysis of play and games is undertaken in this paper. Playful gaming, which is shown to be a synthesis of play and games, is utilized as a category for undertaking the examination of play and games. The significance of playful gaming to education is demonstrated through analyses of Plato's, Dewey's, Sartre's, and Marcuse's…

  10. South Experimental Oculina Research Reserve, Clelia Dive 610 2001 Digital Imagery - Captured from Videotapes taken during Submersible Dives to the Oculina Banks Deep Sea Coral Reefs (NODC Accession 0047190)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Digitial imagery, mpegs and jpegs, captured from mini-DV magnetic videotapes collected with an underwater 3-chip CCD color video camera, deployed from the research...

  11. Central Experimental Oculina Research Reserve, Clelia Dive 612 2001 Digital Imagery - Captured from Videotapes taken during Submersible Dives to the Oculina Banks Deep Sea Coral Reefs (NODC Accession 0047190)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Digitial imagery, mpegs and jpegs, captured from mini-DV magnetic videotapes collected with an underwater 3-chip CCD color video camera, deployed from the research...

  12. Aerial Photography and Imagery, Ortho-Corrected, Hawaii (Big Island) Digital Raster Graphic, Published in 2004, 1:24000 (1in=2000ft) scale, U.S. Geological Survey.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Aerial Photography and Imagery, Ortho-Corrected dataset, published at 1:24000 (1in=2000ft) scale, was produced all or in part from Hardcopy Maps information as...

  13. Aerial Photography and Imagery, Ortho-Corrected, Spring 2010 leaf-off natural color 12 inch ground pixel digital orthophotograpy, Published in 2010, 1:4800 (1in=400ft) scale, Vernon County Wisconsin.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Aerial Photography and Imagery, Ortho-Corrected dataset, published at 1:4800 (1in=400ft) scale, was produced all or in part from Orthoimagery information as of...

  14. Aerial Photography and Imagery, Ortho-Corrected, This dataset contains imagery of Prince George's County in RGB format. The primary goal was to acquire Countywide Digital Orthoimagery at 6" ground pixel resolution., Published in 2009, 1:1200 (1in=100ft) scale, The Maryland-National Capital Park and Planning Commission.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Aerial Photography and Imagery, Ortho-Corrected dataset, published at 1:1200 (1in=100ft) scale, was produced all or in part from Orthoimagery information as of...

  15. Refined empirical line method to calibrate IKONOS imagery

    Institute of Scientific and Technical Information of China (English)

    2006-01-01

    To extract quantitative biophysical parameters such as leaf biomass and leaf chlorophyll concentration from the remotely sensed imagery, the effect of atmospheric attenuation must be removed. The refined empirical line (REL) method was used to calibrate the IKONOS multispectral imagery. The IKONOS digital numbers (DN) were converted to the at-satellite retargets are unavailable or measurement of dark target is inconvenient, the REL method was most crucial for retrieving surface spectral reflectance. The REL offers a simple approach for quantitative retrieval of biophysical parameters from IKONOS imagery.

  16. PLAY ANALYSIS AND DIGITAL PORTFOLIO OF MAJOR OIL RESERVOIRS IN THE PERMIAN BASIN: APPLICATION AND TRANSFER OF ADVANCED GEOLOGICAL AND ENGINEERING TECHNOLOGIES FOR INCREMENTAL PRODUCTION OPPORTUNITIES

    Energy Technology Data Exchange (ETDEWEB)

    Shirley P. Dutton; Eugene M. Kim; Ronald F. Broadhead; William Raatz; Cari Breton; Stephen C. Ruppel; Charles Kerans; Mark H. Holtz

    2003-04-01

    A play portfolio is being constructed for the Permian Basin in west Texas and southeast New Mexico, the largest petroleum-producing basin in the US. Approximately 1300 reservoirs in the Permian Basin have been identified as having cumulative production greater than 1 MMbbl of oil through 2000. Of these major reservoirs, approximately 1,000 are in Texas and 300 in New Mexico. On a preliminary basis, 32 geologic plays have been defined for Permian Basin oil reservoirs and assignment of each of the 1300 major reservoirs to a play has begun. The reservoirs are being mapped and compiled in a Geographic Information System (GIS) by play. Detailed studies of three reservoirs are in progress: Kelly-Snyder (SACROC unit) in the Pennsylvanian and Lower Permian Horseshoe Atoll Carbonate play, Fullerton in the Leonardian Restricted Platform Carbonate play, and Barnhart (Ellenburger) in the Ellenburger Selectively Dolomitized Ramp Carbonate play. For each of these detailed reservoir studies, technologies for further, economically viable exploitation are being investigated.

  17. Aesthetic Play

    DEFF Research Database (Denmark)

    Bang, Jytte Susanne

    2012-01-01

    to the children’s complex life-worlds. Further, this leads to an analysis of music-play activities as play with an art-form (music), which includes aesthetic dimensions and gives the music-play activities its character of being aesthetic play. Following Lev Vygotsky’s insight that art is a way of building life...

  18. Healing Qualities of Imagery and Creativity.

    Science.gov (United States)

    Goff, Kathy; Torrance, E. Paul

    1991-01-01

    This paper explores the relationship between mental activity and physical well-being, through examination of such component activities as imagery, relaxation, sociodrama, and play. The paper concludes that wellness involves the physical and mental health of an individual, positive future images, and true communication with ourselves and others.…

  19. Perceptual Fidelity for Digital Color Imagery

    Science.gov (United States)

    1996-12-01

    34Margini Quasi-percettivi in campi con Stimolazione Omogenea," Rivista di Psicologia , 49:7-30 (1955). English translation by Walter Gerbino (1987) "Quasi...444 (1988). 98. Van Ness, F. L. and M. A. Bouman. "The effects of wavelength and luminance on visual modulation transfer." Excerpta Medica Int

  20. Using High Spatial Resolution Digital Imagery

    Science.gov (United States)

    2005-02-01

    frame and a bright area (hot spot) at the center. The same brightness shifts are present within most aerial photography , particularly the pronounced hot...the deciduous trees and shrubs were without leaves. In addition, the reed and grass species were fully senesced . The lack of photosynthetically...For example, high quality, large-scale aerial photography will provide adequate clarity and detail to accurately identify surface features that are

  1. Geometric registration and rectification of spaceborne SAR imagery

    Science.gov (United States)

    Curlander, J. C.; Pang, S. N.

    1982-01-01

    This paper describes the development of automated location and geometric rectification techniques for digitally processed synthetic aperture radar (SAR) imagery. A software package has been developed that is capable of determining the absolute location of an image pixel to within 60 m using only the spacecraft ephemeris data and the characteristics of the SAR data collection and processing system. Based on this location capability algorithms have been developed that geometrically rectify the imagery, register it to a common coordinate system and mosaic multiple frames to form extended digital SAR maps. These algorithms have been optimized using parallel processing techniques to minimize the operating time. Test results are given using Seasat SAR data.

  2. Imagery Integration Team

    Science.gov (United States)

    Calhoun, Tracy; Melendrez, Dave

    2014-01-01

    The Human Exploration Science Office (KX) provides leadership for NASA's Imagery Integration (Integration 2) Team, an affiliation of experts in the use of engineering-class imagery intended to monitor the performance of launch vehicles and crewed spacecraft in flight. Typical engineering imagery assessments include studying and characterizing the liftoff and ascent debris environments; launch vehicle and propulsion element performance; in-flight activities; and entry, landing, and recovery operations. Integration 2 support has been provided not only for U.S. Government spaceflight (e.g., Space Shuttle, Ares I-X) but also for commercial launch providers, such as Space Exploration Technologies Corporation (SpaceX) and Orbital Sciences Corporation, servicing the International Space Station. The NASA Integration 2 Team is composed of imagery integration specialists from JSC, the Marshall Space Flight Center (MSFC), and the Kennedy Space Center (KSC), who have access to a vast pool of experience and capabilities related to program integration, deployment and management of imagery assets, imagery data management, and photogrammetric analysis. The Integration 2 team is currently providing integration services to commercial demonstration flights, Exploration Flight Test-1 (EFT-1), and the Space Launch System (SLS)-based Exploration Missions (EM)-1 and EM-2. EM-2 will be the first attempt to fly a piloted mission with the Orion spacecraft. The Integration 2 Team provides the customer (both commercial and Government) with access to a wide array of imagery options - ground-based, airborne, seaborne, or vehicle-based - that are available through the Government and commercial vendors. The team guides the customer in assembling the appropriate complement of imagery acquisition assets at the customer's facilities, minimizing costs associated with market research and the risk of purchasing inadequate assets. The NASA Integration 2 capability simplifies the process of securing one

  3. Auditory imagery: empirical findings.

    Science.gov (United States)

    Hubbard, Timothy L

    2010-03-01

    The empirical literature on auditory imagery is reviewed. Data on (a) imagery for auditory features (pitch, timbre, loudness), (b) imagery for complex nonverbal auditory stimuli (musical contour, melody, harmony, tempo, notational audiation, environmental sounds), (c) imagery for verbal stimuli (speech, text, in dreams, interior monologue), (d) auditory imagery's relationship to perception and memory (detection, encoding, recall, mnemonic properties, phonological loop), and (e) individual differences in auditory imagery (in vividness, musical ability and experience, synesthesia, musical hallucinosis, schizophrenia, amusia) are considered. It is concluded that auditory imagery (a) preserves many structural and temporal properties of auditory stimuli, (b) can facilitate auditory discrimination but interfere with auditory detection, (c) involves many of the same brain areas as auditory perception, (d) is often but not necessarily influenced by subvocalization, (e) involves semantically interpreted information and expectancies, (f) involves depictive components and descriptive components, (g) can function as a mnemonic but is distinct from rehearsal, and (h) is related to musical ability and experience (although the mechanisms of that relationship are not clear).

  4. Aesthetic Play

    DEFF Research Database (Denmark)

    Bang, Jytte Susanne

    2012-01-01

    The present article explores the role of music-related artefacts and technologies in children’s lives. More specifically, it analyzes how four 10- to 11-year old girls use CDs and DVD games in their music-play activities and which developmental themes and potentials may accrue from such activities...... to the children’s complex life-worlds. Further, this leads to an analysis of music-play activities as play with an art-form (music), which includes aesthetic dimensions and gives the music-play activities its character of being aesthetic play. Following Lev Vygotsky’s insight that art is a way of building life...

  5. Aerial Photography and Imagery, Ortho-Corrected, RIGIS03/04 Digital Orthophotos of Rhode Island 2003-2004; For this dataset, the natural color orthoimages were produced at 2 foot pixel resolution. Each compressed and mosaiced orthoimage provides imagery for a 20000- by 20000-foot block on the ground., Published in 2005, 1:4800 (1in=400ft) scale, State of Rhode Island and Providence Plantations.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Aerial Photography and Imagery, Ortho-Corrected dataset, published at 1:4800 (1in=400ft) scale, was produced all or in part from Uncorrected Imagery information...

  6. Playful Membership

    DEFF Research Database (Denmark)

    Åkerstrøm Andersen, Niels; Pors, Justine Grønbæk

    2014-01-01

    This article studies the implications of current attempts by organizations to adapt to a world of constant change by introducing the notion of playful organizational membership. To this end we conduct a brief semantic history of organizational play and argue that when organizations play, employees...... are expected to engage in playful exploration of alternative selves. Drawing on Niklas Luhmann's theory of time and decision-making and Gregory Bateson's theory of play, the article analyses three empirical examples of how games play with conceptions of time. We explore how games represent an organizational...... desire to reach out - not just to the future - but to futures beyond the future presently imaginable. The article concludes that playful membership is membership through which employees are expected to develop a surplus of potential identities and continuously cross boundaries between real and virtual...

  7. Casa Grande Ruins National Monument Vegetation Mapping Project - Quickbird Satellite Imagery

    Data.gov (United States)

    National Park Service, Department of the Interior — This imagery was acquired on December 3, 2007 by DigitalGlobe, Inc.'s Quickbird satellite. Its 4 multispectral bands (blue, green, red, near infrared), together with...

  8. OrthoImagery Submission for Vernon County, Wisconsin, USA (Baraboo River Project)

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has been removed for...

  9. USDA-FSA-APFO Digital Ortho Mosaic

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — Digital orthographic imagery datasets contain georeferenced images of the Earth's surface, collected by a sensor in which object displacement has been removed for...

  10. NOAA Emergency Response Imagery

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The imagery posted on this site is in response to natural disasters. The aerial photography missions were conducted by the NOAA Remote Sensing Division. The majority...

  11. L'imagerie ultrasonore

    OpenAIRE

    Fink, M.

    1983-01-01

    Parallèlement au développement des nouvelles techniques d'imagerie (scanner à rayons X, résonance magnétique nucléaire, radar à ouverture synthétique...), les applications de l'imagerie ultrasonore connaissent des progrès spectaculaires. Après un rappel des principes de l'imagerie ultrasonore, on propose une revue synthétique de la recherche dans ce domaine. Une comparaison des succès obtenus en diagnostic médical, en contrôle non destructif et en imagerie sous-marine est présentée. On met en...

  12. SHEBA Reconnaissance Imagery

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set consists of optical band reconnaissance imagery of the Surface Heat Balance of the Arctic (SHEBA) site acquired between August 1997 and September 1998....

  13. Research on the Competitive and Cooperative Development Model of Digital Libraries within the Triple Play Visual Threshold%三网融合视阈下数字图书馆竞合发展模式研究

    Institute of Scientific and Technical Information of China (English)

    李菲; 徐恺英; 常改

    2012-01-01

    文章分析了三网融合背景所带来的信息资源、信息传播、用户信息行为的变革,通过与数字图书馆竞合对象的对比分析,对数字图书馆的资源、服务进行定位,从而提出三网融合视阈下的数字图书馆信息资源、信息服务、产业竞争的发展模式。%This paper analyzes the transformation trend of information resources,information dissemination and user information behavior brought forth by triple play background.With a comparative analysis of the competitive and cooperative objects in digital libraries,the paper clarifies the resources and services of digital libraries,thereby presenting a development model of information resources,information service and industrial competition within the triple play visual threshold.

  14. Pretend play.

    Science.gov (United States)

    Weisberg, Deena Skolnick

    2015-01-01

    Pretend play is a form of playful behavior that involves nonliteral action. Although on the surface this activity appears to be merely for fun, recent research has discovered that children's pretend play has connections to important cognitive and social skills, such as symbolic thinking, theory of mind, and counterfactual reasoning. The current article first defines pretend play and then reviews the arguments and evidence for these three connections. Pretend play has a nonliteral correspondence to reality, hence pretending may provide children with practice with navigating symbolic relationships, which may strengthen their language skills. Pretend play and theory of mind reasoning share a focus on others' mental states in order to correctly interpret their behavior, hence pretending and theory of mind may be mutually supportive in development. Pretend play and counterfactual reasoning both involve representing nonreal states of affairs, hence pretending may facilitate children's counterfactual abilities. These connections make pretend play an important phenomenon in cognitive science: Studying children's pretend play can provide insight into these other abilities and their developmental trajectories, and thereby into human cognitive architecture and its development.

  15. Playful Interaction

    DEFF Research Database (Denmark)

    2003-01-01

    The video Playful Interaction describes a future architectural office, and envisions ideas and concepts for playful interactions between people, materials and appliances in a pervasive and augmented working environment. The video both describes existing developments, technologies and designs...... as well as ideas not yet implemented such as playful modes of interaction with an augmented ball. Playful Interaction has been used as a hybrid of a vision video and a video prototype (1). Externally the video has been used to visualising our new ideas, and internally the video has also worked to inspire...

  16. Mediatized play

    DEFF Research Database (Denmark)

    Johansen, Stine Liv

    Children’s play must nowadays be understood as a mediatized field in society and culture. Media – understood in a very broad sense - holds severe explanatory power in describing and understanding the practice of play, since play happens both with, through and inspired by media of different sorts....... In this presentation the case of ‘playing soccer’ will be outlined through its different mediated manifestations, including soccer games and programs on TV, computer games, magazines, books, YouTube videos and soccer trading cards....

  17. Play practices and play moods

    DEFF Research Database (Denmark)

    Karoff, Helle Skovbjerg

    2013-01-01

    The aim of this article is to develop a view of play as a relation between play practices and play moods based on an empirical study of children's everyday life and by using Bateson's term of ‘framing’ [(1955/2001). In Steps to an ecology of mind (pp. 75–80). Chicago: University of Chicago Press......], Schmidt's notion of ‘commonness’ [(2005). Om respekten. København: Danmarks Pædagogiske Universitets Forlag; (2011). On respect. Copenhagen: Danish School of Education University Press] and Heidegger's term ‘mood’ [(1938/1996). Time and being. Cornwall: Wiley-Blackwell.]. Play mood is a state of being...... in which we are open and ready, both to others and their production of meaning and to new opportunities for producing meaning. This play mood is created when we engage with the world during play practices. The article points out four types of play moods – devotion, intensity, tension and euphorica – which...

  18. Digital Creativity

    DEFF Research Database (Denmark)

    Petersson Brooks, Eva; Brooks, Anthony Lewis

    2014-01-01

    This paper reports on a study exploring the outcomes from children’s play with technology in early childhood learning practices. The paper addresses questions related to how digital technology can foster creativity in early childhood learning environments. It consists of an analysis of children......’s interaction with the KidSmart furniture focusing on digital creativity potentials and play values suggested by the technology. The study applied a qualitative approach and included125 children (aged three to five), 10 pedagogues, and two librarians. The results suggests that educators should sensitively...... consider intervening when children are interacting with technology, and rather put emphasize into the integration of the technology into the environment and to the curriculum in order to shape playful structures for children’s digital creativity....

  19. A New Geometrical Correction Method for Inaccessible Area Imagery

    Institute of Scientific and Technical Information of China (English)

    Lee Hong-shik; Park Jun-ku; Lim Sam-sung

    2003-01-01

    The geometric correction of a satellite imagery is performed by making a systematic correction with satellite ephemerides and attitude angles followed by employing the Ground Control Points (GCPs) or Digital Elevation Models (DEMs). In a remote area or an inaccessible area, however,GCPs are unavailable to be surveyed and thus they can be obtained only by reading maps, which is not accurate in reality.In this study, we performed the systematic correction process to the inaccessible area and the precise geometric correction process to the adjacent accessible area by using GCPs. Then we analyzed the correlation between the two geo-referenced Korea Multipurpose Satellite (KOMPSAT-1 EOC) images. A new geometrical correction for the inaccessible area imagery is achieved by applying the correlation to the inaccessible imagery. By employing this new method, the accuracy of the inaccessible area imagery is significantly improved absolutely and relatively.

  20. Motivations for play in computer role-playing games

    DEFF Research Database (Denmark)

    Tychsen, Anders; Hitchens, Michael; Brolund, Thea

    2008-01-01

    In this paper the motivations for play in the context of single-and multi-player digital Role-Playing Games (RPGs) are examined. Survey data were drawn from respondents online and participants in a related experimental study. The results indicate that motivations for play are not simple constructs......, but rather composed of multiple motivational drivers that are heavily interrelated and act in concert. Character uniqueness and Discovery & Immersion were the highest ranked motivational categories. Different levels of detail in motivations for playing single-/multi- Player RPGs were located......, with mechanistic/tactical play and character-based/social play being the two overall motivational factors. Copyright 2008 ACM....

  1. Performance evaluation of image enhancement techniques on night vision imagery

    NARCIS (Netherlands)

    Dijk, J.; Bijl, P.; Eekeren, W.M. van

    2010-01-01

    Recently new techniques for night-vision cameras are developed. Digital image-intensifiers are becoming available on the market. Also, so-called EMCCD (electro-magnified) cameras are developed, which can also record imagery in dim conditions. In this paper we present data recorded with both types of

  2. Measuring Creative Imagery Abilities

    Directory of Open Access Journals (Sweden)

    Dorota M. Jankowska

    2015-10-01

    Full Text Available Over the decades, creativity and imagination research developed in parallel, but they surprisingly rarely intersected. This paper introduces a new theoretical model of creative imagination, which bridges creativity and imagination research, as well as presents a new psychometric instrument, called the Test of Creative Imagery Abilities (TCIA, developed to measure creative imagery abilities understood in accordance with this model. Creative imagination is understood as constituted by three interrelated components: vividness (the ability to create images characterized by a high level of complexity and detail, originality (the ability to produce unique imagery, and transformativeness (the ability to control imagery. TCIA enables valid and reliable measurement of these three groups of abilities, yielding the general score of imagery abilities and at the same time making profile analysis possible. We present the results of eight studies on a total sample of more than 1,700 participants, showing the factor structure of TCIA using confirmatory factor analysis, as well as provide data confirming this instrument’s validity and reliability. The availability of TCIA for interested researchers may result in new insights and possibilities of integrating the fields of creativity and imagination science.

  3. Playful Organizations

    DEFF Research Database (Denmark)

    Pors, Justine Grønbæk; Åkerstrøm Andersen, Niels

    2015-01-01

    and undecidability. With an empirical point of departure in Danish public school policy and two concrete examples of games utilised in school development, the article analyses how play is a way for organisations to simultaneously decide and also avoid making a decision, thus keeping flexibility and possibilities...... intact. In its final sections, the article discusses what happens to conditions of decision-making when organisations do not just see undecidability as a given condition, but as a limited resource indispensable for change and renewal. The article advances discussions of organisational play by exploring......This article explores how organisational play becomes a managerial tool to increase and benefit from undecidability. The article draws on Niklas Luhmann's concept of decision and on Gregory Bateson's theory of play to create a conceptual framework for analysing the relation between decision...

  4. Exceptional visuospatial imagery in schizophrenia; implications for madness and creativity

    OpenAIRE

    Taylor eBenson; Sohee ePark

    2013-01-01

    Biographical and historical accounts suggest a link between scientific creativity and schizophrenia. Longitudinal studies of gifted children indicate that visuospatial imagery plays a pivotal role in exceptional achievements in science and mathematics. We asked whether visuospatial imagery is enhanced in individuals with schizophrenia (SZ). We compared SZ and matched healthy controls (HC) on five visuospatial tasks tapping parietal and frontoparietal functions. Two aspects of visuospatial tra...

  5. NAIP 2015 Imagery Feedback Map

    Data.gov (United States)

    Farm Service Agency, Department of Agriculture — The NAIP 2015 Imagery Feedback map allows users to make comments and observations about the quality of the 2015 National Agriculture Imagery Program (NAIP)...

  6. Stabilizing posture through imagery.

    Science.gov (United States)

    Papalia, Eleonora; Manzoni, Diego; Santarcangelo, Enrica L

    2014-01-01

    Abstract In the general population, suppression of vision modulates body sway by increasing the center of pressure (CoP) velocity, while a light fingertip touch reduces the area of the CoP displacement in blindfolded subjects. This study assessed whether imagined fixation and fingertip touch differentially stabilize posture in subjects with high (highs) and low (lows) hypnotizability. Visual and tactile imageries were ineffective in lows. In highs, the effects of visual imagery could not be evaluated because the real information was ineffective; real tactile stimulation was effective only on velocity, but the imagery effects could not be definitely assessed owing to low effect size. The highs' larger variability could account for this and represents the most important finding.

  7. Digital Snaps

    DEFF Research Database (Denmark)

    Sandbye, Mette; Larsen, Jonas

    The New Face of Snapshot Photography / Jonas Larsen and Mette Sandbye -- pt. I. IMAGES ON WEB 2.0 AND THE CAMERA PHONE -- ch. 1. Overlooking, Rarely Looking and Not Looking / Martin Lister -- ch. 2. The (Im)mobile Life of Digital Photographs: The Case of Tourist Photography / Jonas Larsen -- ch. 3....... Distance as the New Punctum / Mikko Villi -- pt. II. FAMILY ALBUMS IN TRANSITION -- ch. 4. How Digital Technologies Do Family Snaps, Only Better / Gillian Rose -- ch. 5. Friendship Photography: Memory, Mobility and Social Networking / Joanne Garde-Hansen -- ch. 6. Play, Process and Materiality in Japanese...... Purikura Photography / Mette Sandbye -- ch. 7. 'Buying an Instrument Does Not Necessarily Make You a Musician': Studio Photography and the Digital Revolution / Sigrid Lien -- pt. III. NEW PUBLIC FORMS -- ch. 8 Paparazzi Photography, Seriality and the Digital Photo Archive / Anne Jerslev and Mette Mortensen...

  8. The Imagery-Creativity Connection.

    Science.gov (United States)

    Daniels-McGhee, Susan; Davis, Gary A.

    1994-01-01

    This paper reviews historical highlights of the imagery-creativity connection, including early and contemporary accounts, along with notable examples of imagery in the creative process. It also looks at cross-modal imagery (synesthesia), a model of image-based creativity and the creative process, and implications for strengthening creativity by…

  9. Problematic Game Play: The Diagnostic Value of Playing Motives, Passion, and Playing Time in Men

    Directory of Open Access Journals (Sweden)

    Julia Kneer

    2015-04-01

    Full Text Available Internet gaming disorder is currently listed in the DSM—not in order to diagnose such a disorder but to encourage research to investigate this phenomenon. Even whether it is still questionable if Internet Gaming Disorder exists and can be judged as a form of addiction, problematic game play is already very well researched to cause problems in daily life. Approaches trying to predict problematic tendencies in digital game play have mainly focused on playing time as a diagnostic criterion. However, motives to engage in digital game play and obsessive passion for game play have also been found to predict problematic game play but have not yet been investigated together. The present study aims at (1 analyzing if obsessive passion can be distinguished from problematic game play as separate concepts, and (2 testing motives of game play, passion, and playing time for their predictive values for problematic tendencies. We found (N = 99 males, Age: M = 22.80, SD = 3.81 that obsessive passion can be conceptually separated from problematic game play. In addition, the results suggest that compared to solely playing time immersion as playing motive and obsessive passion have added predictive value for problematic game play. The implications focus on broadening the criteria in order to diagnose problematic playing.

  10. Clay Play

    Science.gov (United States)

    Rogers, Liz; Steffan, Dana

    2009-01-01

    This article describes how to use clay as a potential material for young children to explore. As teachers, the authors find that their dialogue about the potential of clay as a learning medium raises many questions: (1) What makes clay so enticing? (2) Why are teachers noticing different play and conversation around the clay table as compared to…

  11. Solar Imagery - Chromosphere - Calcium

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This dataset consists of full-disk images of the sun in Calcium (Ca) II K wavelength (393.4 nm). Ca II K imagery reveal magnetic structures of the sun from about 500...

  12. Ageing and digital games

    DEFF Research Database (Denmark)

    Iversen, Sara Mosberg

    2016-01-01

    Digital games are still to a great degree considered a medium mainly for young boys. However, available statistics on Western media use show that this is far from the case. Increasingly, people of all ages and genders play digital games, also older adults in their early 60s and beyond. The aim...... of the book is to examine, analyse and discuss: 1) What older adults do with digital games and what meanings the use of digital games take on in the everyday life of older adults; 2) How older adults are perceived by society in relation to digital games; 3) How play and games can be used both...

  13. From online to offline game/play

    DEFF Research Database (Denmark)

    Clausen, Thea Juhl Roloff

    2014-01-01

    Children love to play digital games. But how should we relate to children's use of digital games. When children play they use signs from online games into offline games. There will in the paper be pointed out, media pedagogy weaknesses and strengths. And the media didactic challenges that pedagog...

  14. Training visual imagery: Improvements of metacognition, but not imagery strength

    Directory of Open Access Journals (Sweden)

    Rosanne Lynn Rademaker

    2012-07-01

    Full Text Available Visual imagery has been closely linked to brain mechanisms involved in perception. Can visual imagery, like visual perception, improve by means of training? Previous research has demonstrated that people can reliably evaluate the vividness of single episodes of sensory imagination – might the metacognition of imagery also improve over the course of training? We had participants imagine colored Gabor patterns for an hour a day, over the course of five consecutive days, and again two weeks after training. Participants rated the subjective vividness and effort of their mental imagery on each trial. The influence of imagery on subsequent binocular rivalry dominance was taken as our measure of imagery strength. We found no overall effect of training on imagery strength. Training did, however, improve participant’s metacognition of imagery. Trial-by-trial ratings of vividness gained predictive power on subsequent rivalry dominance as a function of training. These data suggest that, while imagery strength might be immune to training in the current context, people’s metacognitive understanding of mental imagery can improve with practice.

  15. Playing Possum

    Directory of Open Access Journals (Sweden)

    Enrico Euli

    2016-07-01

    Full Text Available Our society is drenched in the catastrophe; where the growth of financial crisis, environmental cataclysm and militarization represents its gaudiest and mortifying phenomena. Humans struggle with depression, sense of impotence, anguish towards a future considered a threat.  A possibility to keep us alive can be represented by the enhancement of our ability in ‘playing Possum’, an exercise of desisting and renitence: to firmly say ‘no’. To say no to a world that proposes just one way of being and living free, that imposes as the only unavoidable possible destiny.

  16. Playful Technology

    DEFF Research Database (Denmark)

    Johansen, Stine Liv; Eriksson, Eva

    2013-01-01

    In this paper, the design of future services for children in Danish public libraries is discussed, in the light of new challenges and opportunities in relation to new media and technologies. The Danish government has over the last few years initiated and described a range of initiatives regarding...... in the library, the changing role of the librarians and the library space. We argue that intertwining traditional library services with new media forms and engaging play is the core challenge for future design in physical public libraries, but also that it is through new media and technology that new...

  17. Playful Technology

    DEFF Research Database (Denmark)

    Johansen, Stine Liv; Eriksson, Eva

    2013-01-01

    in the library, the changing role of the librarians and the library space. We argue that intertwining traditional library services with new media forms and engaging play is the core challenge for future design in physical public libraries, but also that it is through new media and technology that new......In this paper, the design of future services for children in Danish public libraries is discussed, in the light of new challenges and opportunities in relation to new media and technologies. The Danish government has over the last few years initiated and described a range of initiatives regarding...

  18. Aristotle’s Concept of Mental Imagery in Sports

    Directory of Open Access Journals (Sweden)

    Stavroula Roumbou

    2017-04-01

    Full Text Available Throughout the past decade, there has been an accelerated expansion of heightening consciousness in athletic performance’s mental facets, which is reflected in the aggrandizement of research concern in cognitive sports psychology. Research on mental imagery has been considerably influenced by cognitive concepts whereby Aristotle, the Stageirite philosopher, delivers the primary systematic account of the significant role of mental imagery in cognition. In Aristotelian psychological theory, mental images perform much the same function that the rather broader concept of mental portrayal plays in contemporary cognitive science. With the assumption that cognition refers to any mental activity associated with acquiring, storing or using knowledge (including competent behaviour, the present paper, endeavors to forge an alliance between Aristotle’s notion of mental imagery, which draws attentions to some form of fundamental mental portrayal of athletic Knowledge, along with the contemporary notion of mental imagery in sports performers.

  19. Geomorphic habitat units derived from 2011 aerial imagery and elevation data for the Elwha River estuary, Washington

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — Estuary geomorphic units delineated at a scale of 1:1500 using a combination of (a) 03 September 2011 0.3 meter resolution Microsoft/Digital Globe aerial imagery;...

  20. Playing cards.

    Science.gov (United States)

    1977-01-01

    Mrs. Zahia Marzouk, vice-president of the Alexandria Family Planning Association and a living legend of Egyptian family planning, does not believe in talking about problems. She is far too busy learning from people and teaching them. Her latest brainstorm is a set of playing cards designed to help girls and women to read and learn about family planning at the same time. The 5 packs of cards, representing familiar words and sounds, and each with a family planning joker, took Mrs. Marzouk 6 months to design and paint by hand. They have now been printed, packed into packets provided by UNICEF, and distributed to some 2000 literacy groups in factories and family planning clinics. Each woman who succeeds in learning to read is encouraged to teach 4 others. They then go to the family planning clinic to be examined and gain a certificate. For the teacher who has made them proficient there is a special prize. Girls at El Brinth village outside Alexandria are pictured playing cards at the family planning center where they are learning various skills including how to read.

  1. Does vivid emotional imagery depend on body signals?

    Science.gov (United States)

    Vianna, Eduardo Paulo Morawski; Naqvi, Nasir; Bechara, Antoine; Tranel, Daniel

    2009-04-01

    The recall and re-experiencing of a personal emotional event (emotional imagery) are thought to evoke neural activity in the central nervous system that can affect the physiology of bodily states. It has been proposed that the more active the neural systems previously engaged in the emotional experience, and the more active the bodily state associated with that experience, the more vivid the emotional imagery is. The sympathetic nervous system (SNS) and the gastrointestinal system (GI) are engaged in emotional reactions. On this basis, we hypothesized that vivid emotional imagery would be accompanied by strong increases in gastrointestinal and sympathetic nervous system activity. To test this hypothesis, 17 healthy participants performed emotional imagery of strong autobiographical memories involving various emotional states (happy, fear, disgust, sadness, anger). SNS and GI changes, measured by skin conductance and electrogastrogram, respectively, correlated positively with subjective ratings of arousal during the imagery. However, the SNS changes did not correlate with ratings of emotional imagery vividness, and even more intriguingly, the GI changes correlated strongly and negatively with vividness ratings. To account for these findings, we propose that in highly vivid imagery experience, the central nervous system is simulating the whole emotional experience strongly, and bodily information plays a lesser role. In low vivid imagery experience, the central nervous system is not simulating very strongly the emotional experience, and information coming from the body (including the GI system) plays a greater role. This interpretation is set forth in the context of Damasio's [Damasio, A., (1999) The feeling of what happens: body and emotion in the making of consciousness, Orlando, Fl, Harcourt.] theoretical framework, which predicts such a dissociation between a "body loop" and an "as if body loop" for the experiencing and re-experiencing of emotions and feelings.

  2. Motivations for play in computer role-playing games

    DEFF Research Database (Denmark)

    Tychsen, Anders; Hitchens, Michael; Brolund, Thea

    2008-01-01

    In this paper the motivations for play in the context of single-and multi-player digital Role-Playing Games (RPGs) are examined. Survey data were drawn from respondents online and participants in a related experimental study. The results indicate that motivations for play are not simple constructs......, but rather composed of multiple motivational drivers that are heavily interrelated and act in concert. Character uniqueness and Discovery & Immersion were the highest ranked motivational categories. Different levels of detail in motivations for playing single-/multi- Player RPGs were located...

  3. Mobile devices, Virtual Reality, Augmented Reality, and Digital Geoscience Education.

    Science.gov (United States)

    Crompton, H.; De Paor, D. G.; Whitmeyer, S. J.; Bentley, C.

    2016-12-01

    Mobile devices are playing an increasing role in geoscience education. Affordances include instructor-student communication and class management in large classrooms, virtual and augmented reality applications, digital mapping, and crowd-sourcing. Mobile technologies have spawned the sub field of mobile learning or m-learning, which is defined as learning across multiple contexts, through social and content interactions. Geoscientists have traditionally engaged in non-digital mobile learning via fieldwork, but digital devices are greatly extending the possibilities, especially for non-traditional students. Smartphones and tablets are the most common devices but smart glasses such as Pivothead enable live streaming of a first-person view (see for example, https://youtu.be/gWrDaYP5w58). Virtual reality headsets such as Google Cardboard create an immersive virtual field experience and digital imagery such as GigaPan and Structure from Motion enables instructors and/or students to create virtual specimens and outcrops that are sharable across the globe. Whereas virtual reality (VR) replaces the real world with a virtual representation, augmented reality (AR) overlays digital data on the live scene visible to the user in real time. We have previously reported on our use of the AR application called FreshAiR for geoscientific "egg hunts." The popularity of Pokémon Go demonstrates the potential of AR for mobile learning in the geosciences.

  4. Media Impact on Fright Reactions and Belief in UFOs: The Potential Role of Mental Imagery.

    Science.gov (United States)

    Sparks, Glenn G.; And Others

    1995-01-01

    Explores the potential role of mental imagery for media effects in emotional responses to frightening mass media, and in the effects of the media on beliefs in UFOs. Finds that individual differences in vividness of mental imagery may play a crucial role in moderating both types of media impact. (SR)

  5. Aerial Photography and Imagery, Oblique, Digital photos taken of PA's Delaware River shoreline, Little Tinicum Island, and tidal Schuylkill River at an oblique angle at about 1,500-2,000' altitude., Published in 2016, Not Applicable scale, Pennsylvania Coastal Resources Management Program.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Aerial Photography and Imagery, Oblique dataset, published at Not Applicable scale, was produced all or in part from Uncorrected Imagery information as of 2016....

  6. APRENDIZAJE AUTORREGULADO Y FOMENTO DE COMPETENCIAS EN DOS ASIGNATURAS DE MASTER A TRAVÉS DEL EMPLEO DE PLANTILLAS DE EVALUACIÓN, MÉTODO DEL CASO, ROLE-PLAYING Y VIDEO DIGITAL

    Directory of Open Access Journals (Sweden)

    Sonia Lara

    2009-01-01

    Full Text Available En este artículo se presentan las experiencias y opiniones recogidas de los alumnos durante tres cursos académicos de dos asignaturas ofertadas en el Master Oficial en Matrimonio y Familia de la Universidad de Navarra. Las asignaturas son "Educación familiar en la infancia" y "Modelos de orientación en psicopedagogía familiar". Se trata de una propuesta metodológica para fomentar la integración de la docencia práctica de dos asignaturas planteando una metodología centrada en el alumno que fomente el aprendizaje autorregulado y autónomo, así como el desarrollo de competencias en los alumnos, a través del empleo del Role-playing, el Método del Caso, las Plantillas de evaluación o rubrics y el vídeo digital. La peculiaridad de la experiencia mostrada radica en que forma parte de un Master de modalidad on-line que combina unas sesiones presenciales al finalizar la docencia del curso para poner en práctica los contenidos estudiados a lo largo del curso académico.

  7. Public Computation & Boundary Play

    CERN Document Server

    Sengupta, Pratim

    2016-01-01

    In this paper, we introduce 'public computation' as a genre of learning environments that can be used to radically broaden public participation in authentic, computation-enabled STEM disciplinary practices. Our paradigmatic approach utilizes open source software designed for professional scientists, engineers and digital artists, and situates them in an undiluted form, alongside live and archived expert support, in a public space. We present a case study of DigiPlay, a prototypical public computation space we designed at the University of Calgary, where users can interact directly with scientific simulations as well as the underlying open source code using an array of massive multi- touch screens. We argue that in such a space, public interactions with the code can be thought of as boundary work and play, through which public participation becomes legitimate scientific act, as the public engages in scientific creation through truly open-ended explorations with the code.

  8. Synthesis of geophysical data with space-acquired imagery: a review

    Science.gov (United States)

    Hastings, David A.

    1983-01-01

    Geophysical data obtained from ground and airborne platforms have been used in the development of regional geologic models for many years. Space-acquired data and imagery have a shorter but similar history of applications. All these data may be synthesized either manually or digitally. Manual synthesis methods consist of overlaying and comparing maps, whereas digital synthesis methods consist of computer storage and analysis of registered digital data sets.

  9. Contribution of GIS and digital archaeology to the interpretation of stratigraphic relations on the Bronze Age site al-Khidr, Failaka island, State of Kuwait : Imagery analyses of trenches 22S and 22T - case study

    OpenAIRE

    Benediková, Lucia; Štolc, Svorad; Bartík, Martin; Ďuriš, Jozef

    2014-01-01

    The paper presents the results of the stratigraphic analysis of the northern part of excavated KH-1 mound on al-Khidr site (Failaka island, State of Kuwait) based on the GIS and digital archaeology approaches. The results are compared with already published results of stratigraphic analysis based on the field observations only.

  10. The influence of visual mental imagery size on metamemory accuracy in judgment of learning.

    Science.gov (United States)

    Li, Tongtong; Hu, Xiao; Zheng, Jun; Su, Ningxin; Liu, Zhaomin; Luo, Liang

    2017-02-01

    Many studies have found the font size of to-be-remembered words has a significant influence on judgments of learning (JOLs). However, few studies have investigated whether JOLs are affected by the mental imagery size of to-be-remembered words, even when the font sizes themselves are kept identical in study materials. This study investigated whether the visual mental imagery size influences the participants' JOLs and what the underlying mechanisms are. In Experiments 1 and 2, participants learned words with identical font sizes, mentally generated large or small imageries and then made JOLs. We found that JOLs under the large imagery condition were significantly higher than those under the small imagery condition, but actual recall performance exhibited no significant difference. In Experiment 3, participants pressed a button immediately after mental imagery generation and showed that it took significantly longer to generate large imageries than to generate small imageries, and the difference in JOLs between two conditions was no longer significant. In Experiment 4, we used a questionnaire to investigate the contribution of beliefs and found that participants believed large imageries were easier to remember. These findings indicate that imagery size has a significant impact on JOLs, in which beliefs may play a leading role.

  11. Playing Digital Security: Youth Voices on Their Digital Rights

    Science.gov (United States)

    Costa, Conceição; Sousa, Carla; Rogado, José; Henriques, Sara

    2017-01-01

    The United Nations (UN) Convention (1989) on the Rights of the Child changed the way children are viewed and treated worldwide. The Convention has been affecting governments, civil society and the private sector. ICT driven companies on the internet should not be an exception. According to Livingstone, Carr and Byrne (2015), Internet governance…

  12. Digital watermark

    Directory of Open Access Journals (Sweden)

    Jasna Maver

    2000-01-01

    Full Text Available The huge amount of multimedia contents available on the World-Wide-Web is beginning to raise the question of their protection. Digital watermarking is a technique which can serve various purposes, including intellectual property protection, authentication and integrity verification, as well as visible or invisible content labelling of multimedia content. Due to the diversity of digital watermarking applicability, there are many different techniques, which can be categorised according to different criteria. A digital watermark can be categorised as visible or invisible and as robust or fragile. In contrast to the visible watermark where a visible pattern or image is embedded into the original image, the invisible watermark does not change the visual appearance of the image. The existence of such a watermark can be determined only through a watermark ex¬traction or detection algorithm. The robust watermark is used for copyright protection, while the fragile watermark is designed for authentication and integrity verification of multimedia content. A watermark must be detectable or extractable to be useful. In some watermarking schemes, a watermark can be extracted in its exact form, in other cases, we can detect only whether a specific given watermarking signal is present in an image. Digital libraries, through which cultural institutions will make multimedia contents available, should support a wide range of service models for intellectual property protection, where digital watermarking may play an important role.

  13. Non-Drug Pain Relief: Imagery

    Science.gov (United States)

    PATIENT EDUCATION patienteducation.osumc.edu Non-Drug Pain Relief: Imagery Relaxation helps lessen tension. One way to help decrease pain is to use imagery. Imagery is using your imagination to create a ...

  14. Automatic Building Extraction and Roof Reconstruction in 3k Imagery Based on Line Segments

    Science.gov (United States)

    Köhn, A.; Tian, J.; Kurz, F.

    2016-06-01

    We propose an image processing workflow to extract rectangular building footprints using georeferenced stereo-imagery and a derivative digital surface model (DSM) product. The approach applies a line segment detection procedure to the imagery and subsequently verifies identified line segments individually to create a footprint on the basis of the DSM. The footprint is further optimized by morphological filtering. Towards the realization of 3D models, we decompose the produced footprint and generate a 3D point cloud from DSM height information. By utilizing the robust RANSAC plane fitting algorithm, the roof structure can be correctly reconstructed. In an experimental part, the proposed approach has been performed on 3K aerial imagery.

  15. Fusion Experiments of HSI and High Resolution Panchromatic Imagery

    Science.gov (United States)

    2007-11-02

    map derived from the unsharpened HSI. The classification is performed with an unsupervised feature extraction using principal component analysis (PCA... Classification of Hyperspectral Data in Urban Area", P. 169-172, SPIE Vol.3502 8. R. C. Gonzalez, P. Wintz, Digital Image Processing, Addison-Wesley...MA 02420-9185 Abstract In this paper, the fusion of hyperspectral imaging (HSI) sensor data and high-resolution panchromatic imagery (HPI) is

  16. DSM EXTRACTION AND EVALUATION FROM GEOEYE-1 STEREO IMAGERY

    OpenAIRE

    Saldaña, M. M.; Aguilar, M. A.; Aguilar, F. J.; Fernández, I.

    2012-01-01

    The newest very high resolution (VHR) commercial satellites, such as GeoEye-1 or WorldView-2, open new possibilities for cartographic applications, orthoimages generation and extraction of Digital Surface Models (DSMs). These DSMs are generated by image matching strategies from VHR satellite stereopairs imagery, reconstructing the 3D surface corresponding to the first surface view of the earth containing both microrelief (buildings, trees and so on) and bare terrain. The main aim of ...

  17. Effects of music on arousal during imagery in elite shooters: A pilot study.

    Science.gov (United States)

    Kuan, Garry; Morris, Tony; Terry, Peter

    2017-01-01

    Beneficial effects of music on several performance-related aspects of sport have been reported, but the processes involved are not well understood. The purpose of the present study was to investigate effects of relaxing and arousing classical music on physiological indicators and subjective perceptions of arousal during imagery of a sport task. First, appropriate music excerpts were selected. Then, 12 skilled shooters performed shooting imagery while listening to the three preselected music excerpts in randomized order. Participants' galvanic skin response, peripheral temperature, and electromyography were monitored during music played concurrently with imagery. Subjective music ratings and physiological measures showed, as hypothesized, that unfamiliar relaxing music was the most relaxing and unfamiliar arousing music was the most arousing. Researchers should examine the impact of unfamiliar relaxing and arousing music played during imagery on subsequent performance in diverse sports. Practitioners can apply unfamiliar relaxing and arousing music with imagery to manipulate arousal level.

  18. Imagery Rescripting for Personality Disorders

    Science.gov (United States)

    Arntz, Arnoud

    2011-01-01

    Imagery rescripting is a powerful technique that can be successfully applied in the treatment of personality disorders. For personality disorders, imagery rescripting is not used to address intrusive images but to change the implicational meaning of schemas and childhood experiences that underlie the patient's problems. Various mechanisms that may…

  19. Natural resources research and development in Lesotho using LANDSAT imagery

    Science.gov (United States)

    Jackson, A. A. (Principal Investigator)

    1976-01-01

    The author has identified the following significant results. A map of the drainage of the whole country to include at least third order streams was constructed from LANDSAT imagery. This was digitized and can be plotted at any required scale to provide base maps for other cartographic projects. A suite of programs for the interpretation of digital LANDSAT data is under development for a low cost programmable calculator. Initial output from these programs has proved to have better resolution and detail than the standard photographic products, and was to update the standard topographic map of a particular region.

  20. Use Of Infrared Imagery In Continuous Flow Wind Tunnels

    Science.gov (United States)

    Stallings, D. W.; Whetsel, R. G.

    1983-03-01

    Thermal mapping with infrared imagery is a very useful test technique in continuous flow wind tunnels. Convective-heating patterns over large areas of a model can be obtained through remote sensing of the surface temperature. A system has been developed at AEDC which uses a commercially available infrared scanning camera to produce these heat-transfer maps. In addition to the camera, the system includes video monitors, an analog tape recording, an analog-to-digital converter, a digitizer control, and two minicomputers. This paper will describe the individual components, data reduction techniques, and typical applications. *

  1. Imagery Rescripting of Early Traumatic Memories in Social Phobia

    Science.gov (United States)

    Wild, Jennifer; Clark, David M.

    2011-01-01

    Negative self-images appear to play a role in the maintenance of social phobia and research suggests they are often linked to earlier memories of socially traumatic events. Imagery rescripting is a clinical intervention that aims to update such unpleasant or traumatic memories, and is increasingly being incorporated in cognitive behavioral therapy…

  2. Estimation of vegetation fraction in arid areas using ALOS imagery

    NARCIS (Netherlands)

    Matkan, A.A.; Darvishzadeh, R.; Hosseiniasl, A.; Ebrahimi, M.

    2010-01-01

    Fraction of vegetation (Fv) plays an important role in ecosystems. Estimation of Fv is essential for drought monitoring, natural resources studies, estimation of soil erosion volume etc. The aim of this study is to estimate Fv in an arid area in Iran using ALOS Imagery (June 2008). In order to find

  3. D Surface Generation from Aerial Thermal Imagery

    Science.gov (United States)

    Khodaei, B.; Samadzadegan, F.; Dadras Javan, F.; Hasani, H.

    2015-12-01

    Aerial thermal imagery has been recently applied to quantitative analysis of several scenes. For the mapping purpose based on aerial thermal imagery, high accuracy photogrammetric process is necessary. However, due to low geometric resolution and low contrast of thermal imaging sensors, there are some challenges in precise 3D measurement of objects. In this paper the potential of thermal video in 3D surface generation is evaluated. In the pre-processing step, thermal camera is geometrically calibrated using a calibration grid based on emissivity differences between the background and the targets. Then, Digital Surface Model (DSM) generation from thermal video imagery is performed in four steps. Initially, frames are extracted from video, then tie points are generated by Scale-Invariant Feature Transform (SIFT) algorithm. Bundle adjustment is then applied and the camera position and orientation parameters are determined. Finally, multi-resolution dense image matching algorithm is used to create 3D point cloud of the scene. Potential of the proposed method is evaluated based on thermal imaging cover an industrial area. The thermal camera has 640×480 Uncooled Focal Plane Array (UFPA) sensor, equipped with a 25 mm lens which mounted in the Unmanned Aerial Vehicle (UAV). The obtained results show the comparable accuracy of 3D model generated based on thermal images with respect to DSM generated from visible images, however thermal based DSM is somehow smoother with lower level of texture. Comparing the generated DSM with the 9 measured GCPs in the area shows the Root Mean Square Error (RMSE) value is smaller than 5 decimetres in both X and Y directions and 1.6 meters for the Z direction.

  4. Improving Measurement of Forest Structural Parameters by Co-Registering of High Resolution Aerial Imagery and Low Density LiDAR Data.

    Science.gov (United States)

    Huang, Huabing; Gong, Peng; Cheng, Xiao; Clinton, Nick; Li, Zengyuan

    2009-01-01

    Forest structural parameters, such as tree height and crown width, are indispensable for evaluating forest biomass or forest volume. LiDAR is a revolutionary technology for measurement of forest structural parameters, however, the accuracy of crown width extraction is not satisfactory when using a low density LiDAR, especially in high canopy cover forest. We used high resolution aerial imagery with a low density LiDAR system to overcome this shortcoming. A morphological filtering was used to generate a DEM (Digital Elevation Model) and a CHM (Canopy Height Model) from LiDAR data. The LiDAR camera image is matched to the aerial image with an automated keypoints search algorithm. As a result, a high registration accuracy of 0.5 pixels was obtained. A local maximum filter, watershed segmentation, and object-oriented image segmentation are used to obtain tree height and crown width. Results indicate that the camera data collected by the integrated LiDAR system plays an important role in registration with aerial imagery. The synthesis with aerial imagery increases the accuracy of forest structural parameter extraction when compared to only using the low density LiDAR data.

  5. A Brief Introduction to Competition and Play

    Directory of Open Access Journals (Sweden)

    Sean Scanlan

    2014-05-01

    Full Text Available This introduction sets the stage for a NANO special issue on how competition and play revolutionized Victorian work, how these ideas operate in endurance sports, and how they might get remade in digital spaces.

  6. Playing it Real

    DEFF Research Database (Denmark)

    Grubert, Jens; Morrison, Ann; Munz, Helmut

    2012-01-01

    Magic lens and static peephole interfaces are used in numerous consumer mobile phone applications such as Augmented Reality browsers, games or digital map applications in a variety of contexts including public spaces. Interface performance has been evaluated for various interaction tasks involving...... spatial relationships in a scene. However, interface usage outside laboratory conditions has not been considered in depth in the evaluation of these interfaces. We present findings about the usage of magic lens and static peephole interfaces for playing a find-and-select game in a public space and report...... on the reactions of the public audience to participants’ interactions. Contrary to our expectations participants favored the magic lens over a static peephole interface despite tracking errors, fatigue and potentially conspicuous gestures. Most passersby did not pay attention to the participants and vice versa...

  7. Auditory pitch imagery and its relationship to musical synchronization.

    Science.gov (United States)

    Pecenka, Nadine; Keller, Peter E

    2009-07-01

    Musical ensemble performance requires precise coordination of action. To play in synchrony, ensemble musicians presumably anticipate the sounds that will be produced by their co-performers. These predictions may be based on auditory images in working memory. This study examined the contribution of auditory imagery abilities to sensorimotor synchronization (SMS) in 20 musicians. The acuity of single-tone pitch images was measured by an adjustment method and by adaptive threshold estimation. Different types of finger tapping tasks were administered to assess SMS. Auditory imagery and SMS abilities were found to be positively correlated with one another and with musical experience.

  8. Digital Media and Learning

    Science.gov (United States)

    John D. and Catherine T. MacArthur Foundation, 2012

    2012-01-01

    MacArthur launched the digital media and learning initiative in 2006 to explore how digital media are changing the way young people learn, socialize, communicate, and play. Since 2006, the Foundation has awarded grants totaling more than $100 million for research, development of innovative new technologies, new learning environments for youth,…

  9. Application of digital signal processor in brain-computer interface based on motor imagery potential%DSP在基于想象动作电位的脑-机接口中的应用

    Institute of Scientific and Technical Information of China (English)

    赵丽; 高新

    2012-01-01

    应用数字信号处理器设计了一个基于想象动作电位的脑-机接口系统,通过模拟滤波与数字信号器处理相结合的方法,实现了对想象动作电位信息的有效采集和处理.系统在硬件上设计了脑电信号放大器,DSP开发板;对脑电信号放大、AD转换后,通过分类特征提取处理后,完成动作识别与控制命令的输出.将数字信号处理器应用在脑-机接口中,利用数字信号处理器优异的处理能力和丰富的外设资源,实现了一个嵌入式、微型化的脑-机接口构建,实现了脑-机接口实时处理与微型化.%This paper presents motor-imaginary-potential-based brain-computer interface (BCI) interface by using digital signal processor (DSP). Combining analog filtering and digital processing; realize the motor imaginary potential information acquisition effectively and processing. A EEG amplifier and DSP development board were designed in system for hardware. Motor imaginary potential information through EEG-amplifier and AD converted, after classification and feature extraction,gesture recognition will be completed and control command will be output to control peripherals. In this paper, digital signal processor (DSP) is used in brain-computer interface (BCI), using the DSP achieved a brain-computer interface real-time processing and miniaturization with its excellent processing power and rich resources of the peripheral. A on embedded technology Based, Miniaturization of brain-computer interface was built.

  10. Exceptional visuospatial imagery in schizophrenia; implications for madness and creativity

    Directory of Open Access Journals (Sweden)

    Taylor eBenson

    2013-11-01

    Full Text Available Biographical and historical accounts suggest a link between scientific creativity and schizophrenia. Longitudinal studies of gifted children indicate that visuospatial imagery plays a pivotal role in exceptional achievements in science and mathematics. We asked whether visuospatial imagery is enhanced in individuals with schizophrenia (SZ. We compared SZ and matched healthy controls (HC on five visuospatial tasks tapping parietal and frontoparietal functions. Two aspects of visuospatial transformation, spatial location and mental imagery manipulation were examined with Paper Folding Test and Jigsaw Puzzle Task, respectively. Visuospatial intelligence was assessed with Ravens Progressive Matrices, which is associated with frontoparietal network activity. Hemispatial inattention implicating parietal function was assessed with line bisection task. Mediated by prefrontal cortex, spatial delayed response task was used to index working memory maintenance, which was impaired in SZ compared to HC. In contrast, SZ showed intact visuospatial intelligence and transformation of location. Further, SZ performed significantly better than HC on jigsaw puzzle task indicating enhanced mental imagery manipulation. Spatial working memory maintenance and mental imagery manipulation were strongly associated in HC but dissociated in SZ. Thus, we observed enhanced mental imagery manipulation in SZ but the dissociation of mental imagery from working memory suggests a disrupted frontoparietal network. Finally, while HC showed the expected leftward pseudoneglect, SZ showed increased rightward line bisection bias implicating left hemispatial inattention and impaired right parietal control of spatial attention. The current results chart a unique profile of impaired, spared and enhanced parietal-mediated visuospatial functions implicating parietal abnormalities as a biobehavioral marker for SZ. We discuss these results in relation to creative cognition.

  11. Exceptional visuospatial imagery in schizophrenia; implications for madness and creativity.

    Science.gov (United States)

    Benson, Taylor L; Park, Sohee

    2013-01-01

    Biographical and historical accounts suggest a link between scientific creativity and schizophrenia. Longitudinal studies of gifted children indicate that visuospatial imagery plays a pivotal role in exceptional achievements in science and mathematics. We asked whether visuospatial imagery is enhanced in individuals with schizophrenia (SZ). We compared SZ and matched healthy controls (HC) on five visuospatial tasks tapping parietal and frontoparietal functions. Two aspects of visuospatial transformation, spatial location and mental imagery manipulation were examined with Paper Folding Test (PFT) and jigsaw puzzle task (JPT), respectively. Visuospatial intelligence was assessed with Ravens Progressive Matrices, which is associated with frontoparietal network activity. Hemispatial inattention implicating parietal function was assessed with line bisection (LB) task. Mediated by prefrontal cortex, spatial delayed response task (DRT) was used to index working memory maintenance, which was impaired in SZ compared to HC. In contrast, SZ showed intact visuospatial intelligence and transformation of location. Further, SZ performed significantly better than HC on JPT indicating enhanced mental imagery manipulation. Spatial working memory (SWM) maintenance and mental imagery manipulation were strongly associated in HC but dissociated in SZ. Thus, we observed enhanced mental imagery manipulation in SZ but the dissociation of mental imagery from working memory suggests a disrupted frontoparietal network. Finally, while HC showed the expected leftward pseudoneglect, SZ showed increased rightward LB bias implicating left hemispatial inattention and impaired right parietal control of spatial attention. The current results chart a unique profile of impaired, spared and enhanced parietal-mediated visuospatial functions implicating parietal abnormalities as a biobehavioral marker for SZ. We discuss these results in relation to creative cognition.

  12. The Imagery Exchange (TIE): Open Source Imagery Management System

    Science.gov (United States)

    Alarcon, C.; Huang, T.; Thompson, C. K.; Roberts, J. T.; Hall, J. R.; Cechini, M.; Schmaltz, J. E.; McGann, J. M.; Boller, R. A.; Murphy, K. J.; Bingham, A. W.

    2013-12-01

    The NASA's Global Imagery Browse Service (GIBS) is the Earth Observation System (EOS) imagery solution for delivering global, full-resolution satellite imagery in a highly responsive manner. GIBS consists of two major subsystems, OnEarth and The Imagery Exchange (TIE). TIE is the GIBS horizontally scaled imagery workflow manager component, an Open Archival Information System (OAIS) responsible for orchestrating the acquisition, preparation, generation, and archiving of imagery to be served by OnEarth. TIE is an extension of the Data Management and Archive System (DMAS), a high performance data management system developed at the Jet Propulsion Laboratory by leveraging open source tools and frameworks, which includes Groovy/Grails, Restlet, Apache ZooKeeper, Apache Solr, and other open source solutions. This presentation focuses on the application of Open Source technologies in developing a horizontally scaled data system like DMAS and TIE. As part of our commitment in contributing back to the open source community, TIE is in the process of being open sourced. This presentation will also cover our current effort in getting TIE in to the hands of the community from which we benefited from.

  13. Sonification enhances target detection in multi-band imagery

    Science.gov (United States)

    Irvine, John M.; Israel, Steven A.

    2005-05-01

    Growing military requirements and shorter timelines are placing greater demands on imagery analysts. At the same time, advances in sensor technology have vastly increased the quantity and types of imagery data available. Together, these factors are driving toward greater reliance on automated exploitation tools, such as automated target cueing (ATC). Several studies indicate that operational performance depends not only on the accuracy of the ATC algorithm, but also on effectively conveying the ATC information to the user. Sonification, the presentation of information through audio signals, provides a novel method for assisting analysts with visual search tasks. This paper presents a recent proof-of-concept experiment in which analysts search for geometric targets in synthetic, two-band color imagery. The performance results indicate that sonification can enhance performance, particularly through false alarm mitigation. The range of performance across users also suggests that user training may play a big role in effective operational use of sonification methods.

  14. Imagining a brighter future: The effect of positive imagery training on mood, prospective mental imagery and emotional bias in older adults

    OpenAIRE

    Murphy, Susannah E.; Clare O’Donoghue, M.; Drazich, Erin H.S.; BLACKWELL, SIMON E; Christina Nobre, Anna; Emily A Holmes

    2015-01-01

    Positive affect and optimism play an important role in healthy ageing and are associated with improved physical and cognitive health outcomes. This study investigated whether it is possible to boost positive affect and associated positive biases in this age group using cognitive training. The effect of computerised imagery-based cognitive bias modification on positive affect, vividness of positive prospective imagery and interpretation biases in older adults was measured. 77 older adults rece...

  15. [Psychophysiologic research on mental imagery].

    Science.gov (United States)

    Fontana, A E; Heumann, G A

    1988-06-01

    This paper studies the different types of imagery likely to occur during the sleep/wake cycle in experiment subjects under part sensory deprivation conditions, where they are administered a sound-stimulus- namely an electronically recorded heart-beat which acts as propioceptive inductor. Meanwhile, a polysmonographic register in recorded so that a correlation between the time the imagery appears, and the states of consciousness likely to arouse the images is duly established. The study allows a fresh re-elaboration to be raised as regards imagery matureness and formation in the mind, a semiologic re-statement of imagery types, and a better understanding how the self works during sleep stage, dream state, and hypnagogic-hypnopompic phases as well. Finally, the authors stress up the importance of interpersonal relationship between the subjects and the research team, altogether with the frame of reference the professionals work in since their focusing could modify the sleep recording characteristics.

  16. New percepts via mental imagery?

    Directory of Open Access Journals (Sweden)

    Fred Walter Mast

    2012-10-01

    Full Text Available We are able to extract detailed information from mental images that we were not explicitly aware of during encoding. For example, we can discover a new figure when we rotate a previously seen image in our mind. However, such discoveries are not really new but just new interpretations. In two recent publications, we have shown that mental imagery can lead to perceptual learning (Tartaglia et al., 2009, 2012. Observers imagined the central line of a bisection stimulus for thousands of trials. This training enabled observers to perceive bisection offsets that were invisible before training. Hence, it seems that perceptual learning via mental imagery leads to new percepts. We will argue, however, that these new percepts can occur only within known models. In this sense, perceptual learning via mental imagery exceeds new discoveries in mental images. Still, the effects of mental imagery on perceptual learning are limited. Only perception can lead to really new perceptual experience.

  17. Intelligence and imagery in personality.

    Science.gov (United States)

    Tedford, W H; Penk, M L

    1977-08-01

    One hundred college undergraduates were administered the Richardson revision of the Gordon Test of Visual Imagery Control, the Betts-Sheehan Questionnaire Upon Mental Imagery, and the Shipley-Hartford Institute of Living Scale. The latter provided a conceptual quotient (CQ) score of intellectual impairment based upon a ratio between vocabulary and abstraction scores. Subjects with CQs above 100 had significantly higher control scores (p less than .02). High control subjects had significantly higher total IQ scores than did low control subjects (p less than .04). Subjects with high and medium range control had higher vocabulary scores than those with low control. This suggests possible assessment of proneness toward introverted and extraverted neuroticism based upon a combination type of imagery score and the ratio between abstract or vocabulary scores. The connection of imagery with dimensions of IQ may be a start toward a more refined measure of this aspect of personality. Problems and implications are discussed.

  18. APFO Historical Availability of Imagery

    Data.gov (United States)

    Farm Service Agency, Department of Agriculture — The APFO Historical Availability ArcGIS Online web map provides an easy to use reference of what historical imagery is available by county from the Aerial...

  19. Imagery and retrieval of auditory and visual information: neural correlates of successful and unsuccessful performance.

    Science.gov (United States)

    Huijbers, Willem; Pennartz, Cyriel M A; Rubin, David C; Daselaar, Sander M

    2011-06-01

    Remembering past events - or episodic retrieval - consists of several components. There is evidence that mental imagery plays an important role in retrieval and that the brain regions supporting imagery overlap with those supporting retrieval. An open issue is to what extent these regions support successful vs. unsuccessful imagery and retrieval processes. Previous studies that examined regional overlap between imagery and retrieval used uncontrolled memory conditions, such as autobiographical memory tasks, that cannot distinguish between successful and unsuccessful retrieval. A second issue is that fMRI studies that compared imagery and retrieval have used modality-aspecific cues that are likely to activate auditory and visual processing regions simultaneously. Thus, it is not clear to what extent identified brain regions support modality-specific or modality-independent imagery and retrieval processes. In the current fMRI study, we addressed this issue by comparing imagery to retrieval under controlled memory conditions in both auditory and visual modalities. We also obtained subjective measures of imagery quality allowing us to dissociate regions contributing to successful vs. unsuccessful imagery. Results indicated that auditory and visual regions contribute both to imagery and retrieval in a modality-specific fashion. In addition, we identified four sets of brain regions with distinct patterns of activity that contributed to imagery and retrieval in a modality-independent fashion. The first set of regions, including hippocampus, posterior cingulate cortex, medial prefrontal cortex and angular gyrus, showed a pattern common to imagery/retrieval and consistent with successful performance regardless of task. The second set of regions, including dorsal precuneus, anterior cingulate and dorsolateral prefrontal cortex, also showed a pattern common to imagery and retrieval, but consistent with unsuccessful performance during both tasks. Third, left ventrolateral

  20. Evaluating large scale orthophotos derived from high resolution satellite imagery

    Science.gov (United States)

    Ioannou, Maria Teresa; Georgopoulos, Andreas

    2013-08-01

    For the purposes of a research project, for the compilation of the archaeological and environmental digital map of the island of Antiparos, the production of updated large scale orthophotos was required. Hence suitable stereoscopic high resolution satellite imagery was acquired. Two Geoeye-1 stereopairs were enough to cover this small island of the Cyclades complex in the central Aegean. For the orientation of the two stereopairs numerous ground control points were determined using GPS observations. Some of them would also serve as check points. The images were processed using commercial stereophotogrammetric software suitable to process satellite stereoscopic imagery. The results of the orientations are evaluated and the digital terrain model was produced using automated and manual procedures. The DTM was checked both internally and externally with comparison to other available DTMs. In this paper the procedures for producing the desired orthophotography are critically presented and the final result is compared and evaluated for its accuracy, completeness and efficiency. The final product is also compared against the orthophotography produced by Ktimatologio S.A. using aerial images in 2007. The orthophotography produced has been evaluated metrically using the available check points, while qualitative evaluation has also been performed. The results are presented and a critical approach for the usability of satellite imagery for the production of large scale orthophotos is attempted.

  1. High Resolution Imagery and Three-line Array Imagery Automatic Registration for China’s TH-1 Satellite Imagery

    OpenAIRE

    2014-01-01

    An automatic image registration method of high resolution (HR) imagery and three-line array imagery for China’s TH-1 mapping satellite is invented. The 2m resolution HR imagery is normalized to 5m resolution three-line array imagery firstly. Then using precise point prediction model (P3M) matching method, thousands of correspondent points can be matched. Based on these matched points, feature points collected on HR imagery can be converted onto three-line array imagery automatically. Conseque...

  2. SAR imagery of the Grand Banks (Newfoundland) pack ice pack and its relationship to surface features

    Science.gov (United States)

    Argus, S. D.; Carsey, F. D.

    1988-01-01

    Synthetic Aperture Radar (SAR) data and aerial photographs were obtained over pack ice off the East Coast of Canada in March 1987 as part of the Labrador Ice Margin Experiment (LIMEX) pilot project. Examination of this data shows that although the pack ice off the Canadian East Coast appears essentially homogeneous to visible light imagery, two clearly defined zones of ice are apparent on C-band SAR imagery. To identify factors that create the zones seen on the radar image, aerial photographs were compared to the SAR imagery. Floe size data from the aerial photographs was compared to digital number values taken from SAR imagery of the same ice. The SAR data of the inner zone acquired three days apart over the melt period was also examined. The studies indicate that the radar response is governed by floe size and meltwater distribution.

  3. Playing with Technology: Mother-Toddler Interaction Scores Lower during Play with Electronic Toys

    Science.gov (United States)

    Wooldridge, Michaela B.; Shapka, Jennifer

    2012-01-01

    To investigate play with electronic toys (battery-operated or digital), 25 mother-toddler (16-24 months old) dyads were videotaped in their homes playing with sets of age-appropriate electronic and non-electronic toys for approximately 10 min each. Parent-child interactions were coded from recorded segments of both of the play conditions using the…

  4. Mental imagery for musical changes in loudness

    Directory of Open Access Journals (Sweden)

    Freya eBailes

    2012-12-01

    Full Text Available Musicians imagine music during mental rehearsal, when reading from a score, and while composing. An important characteristic of music is its temporality. Among the parameters that vary through time is sound intensity, perceived as patterns of loudness. Studies of mental imagery for melodies (i.e. pitch and rhythm show interference from concurrent musical pitch and verbal tasks, but how we represent musical changes in loudness is unclear. Theories suggest that our perceptions of loudness change relate to our perceptions of force or effort, implying a motor representation. An experiment was conducted to investigate the modalities that contribute to imagery for loudness change. Musicians performed a within-subjects loudness change recall task, comprising 48 trials. First, participants heard a musical scale played with varying patterns of loudness, which they were asked to remember. There followed an empty interval of 8 seconds (nil distractor control, or the presentation of a series of 4 sine tones, or 4 visual letters or 3 conductor gestures, also to be remembered. Participants then saw an unfolding score of the notes of the scale, during which they were to imagine the corresponding scale in their mind while adjusting a slider to indicate the imagined changes in loudness. Finally, participants performed a recognition task of the tone, letter or gesture sequence. Based on the motor hypothesis, we predicted that observing and remembering conductor gestures would impair loudness change scale recall, while observing and remembering tone or letter string stimuli would not. Results support this prediction, with loudness change recalled less accurately in the gestures condition than in the control condition. An effect of musical training suggests that auditory and motor imagery ability may be closely related to domain expertise.

  5. Mental imagery for musical changes in loudness.

    Science.gov (United States)

    Bailes, Freya; Bishop, Laura; Stevens, Catherine J; Dean, Roger T

    2012-01-01

    Musicians imagine music during mental rehearsal, when reading from a score, and while composing. An important characteristic of music is its temporality. Among the parameters that vary through time is sound intensity, perceived as patterns of loudness. Studies of mental imagery for melodies (i.e., pitch and rhythm) show interference from concurrent musical pitch and verbal tasks, but how we represent musical changes in loudness is unclear. Theories suggest that our perceptions of loudness change relate to our perceptions of force or effort, implying a motor representation. An experiment was conducted to investigate the modalities that contribute to imagery for loudness change. Musicians performed a within-subjects loudness change recall task, comprising 48 trials. First, participants heard a musical scale played with varying patterns of loudness, which they were asked to remember. There followed an empty interval of 8 s (nil distractor control), or the presentation of a series of four sine tones, or four visual letters or three conductor gestures, also to be remembered. Participants then saw an unfolding score of the notes of the scale, during which they were to imagine the corresponding scale in their mind while adjusting a slider to indicate the imagined changes in loudness. Finally, participants performed a recognition task of the tone, letter, or gesture sequence. Based on the motor hypothesis, we predicted that observing and remembering conductor gestures would impair loudness change scale recall, while observing and remembering tone or letter string stimuli would not. Results support this prediction, with loudness change recalled less accurately in the gestures condition than in the control condition. An effect of musical training suggests that auditory and motor imagery ability may be closely related to domain expertise.

  6. Mental Imagery for Musical Changes in Loudness

    Science.gov (United States)

    Bailes, Freya; Bishop, Laura; Stevens, Catherine J.; Dean, Roger T.

    2012-01-01

    Musicians imagine music during mental rehearsal, when reading from a score, and while composing. An important characteristic of music is its temporality. Among the parameters that vary through time is sound intensity, perceived as patterns of loudness. Studies of mental imagery for melodies (i.e., pitch and rhythm) show interference from concurrent musical pitch and verbal tasks, but how we represent musical changes in loudness is unclear. Theories suggest that our perceptions of loudness change relate to our perceptions of force or effort, implying a motor representation. An experiment was conducted to investigate the modalities that contribute to imagery for loudness change. Musicians performed a within-subjects loudness change recall task, comprising 48 trials. First, participants heard a musical scale played with varying patterns of loudness, which they were asked to remember. There followed an empty interval of 8 s (nil distractor control), or the presentation of a series of four sine tones, or four visual letters or three conductor gestures, also to be remembered. Participants then saw an unfolding score of the notes of the scale, during which they were to imagine the corresponding scale in their mind while adjusting a slider to indicate the imagined changes in loudness. Finally, participants performed a recognition task of the tone, letter, or gesture sequence. Based on the motor hypothesis, we predicted that observing and remembering conductor gestures would impair loudness change scale recall, while observing and remembering tone or letter string stimuli would not. Results support this prediction, with loudness change recalled less accurately in the gestures condition than in the control condition. An effect of musical training suggests that auditory and motor imagery ability may be closely related to domain expertise. PMID:23227014

  7. Digital Library for Aerospace Education

    Science.gov (United States)

    Kudashev, Å. B.

    The article reviews the experience of the development of digital digital library for the problems in organisation of state-of-the-art education in remote sensing for environmental research. Information-education resources are installed on the Web-Server of Space Research Institute. Web Server was organized in the form the Remote Sensing Data Server, and Metadata Server on the base of digital catalogues with satellite imagery. The integration of Russian Satellite Data of Remote Sensing would conclude the Digital Library. For this project we had the following guiding principles: create the Web resources of Satellite Data, Metadata, and Geospatial Information for University community; provide the information support for the Inter-University Aerospace Centre; provide free Web access and obtaining satellite images over Internet; provide the information exchange and data acquisition.

  8. Daytime naps improve motor imagery learning.

    Science.gov (United States)

    Debarnot, Ursula; Castellani, Eleonora; Valenza, Gaetano; Sebastiani, Laura; Guillot, Aymeric

    2011-12-01

    Sleep is known to contribute to motor memory consolidation. Recent studies have provided evidence that a night of sleep plays a similar functional role following motor imagery (MI), while the simple passage of time does not result in performance gains. Here, we examined the benefits of a daytime nap on motor memory consolidation after MI practice. Participants were trained by MI on an explicitly known sequence of finger movements at 11:00. Half of the participants were then subjected (at 14:00) to either a short nap (10 min of stage 2 sleep) or a long nap (60-90 min, including slow wave sleep and rapid eye movement sleep). We also collected data from both quiet and active rest control groups. All participants remained in the lab until being retested at 16:00. The data revealed that a daytime nap after imagery practice improved motor performance and, therefore, facilitated motor memory consolidation, as compared with spending a similar time interval in the wake state. Interestingly, the results revealed that both short and long naps resulted in similar delayed performance gains. The data might also suggest that the presence of slow wave and rapid eye movement sleep does not provide additional benefits for the sleep-dependent motor skill consolidation following MI practice.

  9. AgSat Imagery Collection Footprints

    Data.gov (United States)

    Farm Service Agency, Department of Agriculture — The AgSat Imagery Collection Footprints map shows the imagery footprints which have been collected under the USDA satellite blanket purchase agreement. Click on a...

  10. COMMERCIAL IMAGERY WORLDVIEW-1 (Federally Viewable)

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — The USGS Commercial Data Purchases (UCDP) imagery collection is an archive of commercial remote sensing imagery from several different commercial vendors. The UCDP...

  11. COMMERCIAL IMAGERY WORLDVIEW-1 (Federally Downloadable)

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — The USGS Commercial Data Purchases (UCDP) imagery collection is an archive of commercial remote sensing imagery from several different commercial vendors. The UCDP...

  12. Publicly Available IKONOS-2 Commercial Imagery

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — The USGS Commercial Data Purchases (UCDP) imagery collection is an archive of commercial remote sensing imagery from several different commercial vendors. The UCDP...

  13. COMMERCIAL IMAGERY GEOEYE-1 Authorized (Federally Downloadable)

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — The USGS Commercial Data Purchases (UCDP) imagery collection is an archive of commercial remote sensing imagery from several different commercial vendors. The UCDP...

  14. COMMERCIAL IMAGERY WORLDVIEW-2 (Federally Downloadable)

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — The USGS Commercial Data Purchases (UCDP) imagery collection is an archive of commercial remote sensing imagery from several different commercial vendors. The UCDP...

  15. COMMERCIAL IMAGERY IKONOS-2 (Federally Downloadable)

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — The USGS Commercial Data Purchases (UCDP) imagery collection is an archive of commercial remote sensing imagery from several different commercial vendors. The UCDP...

  16. COMMERCIAL IMAGERY GEOEYE-1 (Federally Viewable)

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — The USGS Commercial Data Purchases (UCDP) imagery collection is an archive of commercial remote sensing imagery from several different commercial vendors. The UCDP...

  17. COMMERCIAL IMAGERY QUICKBIRD-1 (Federally Downloadable)

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — The USGS Commercial Data Purchases (UCDP) imagery collection is an archive of commercial remote sensing imagery from several different commercial vendors. The UCDP...

  18. COMMERCIAL IMAGERY WORLDVIEW-2 (Federally Viewable)

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — The USGS Commercial Data Purchases (UCDP) imagery collection is an archive of commercial remote sensing imagery from several different commercial vendors. The UCDP...

  19. COMMERCIAL IMAGERY QUICKBIRD-2 (Federally Viewable)

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — The USGS Commercial Data Purchases (UCDP) imagery collection is an archive of commercial remote sensing imagery from several different commercial vendors. The UCDP...

  20. Supportive Music and Imagery Method

    Directory of Open Access Journals (Sweden)

    Sumi Paik-Maier

    2010-11-01

    Full Text Available

    The Supportive Music and Imagery Method is derived from the Bonny Method of Guided Imagery and Music (BMGIM. It uses one piece of pre-recorded music that is short and simple in all musical elements and non-classical music is often used.It aims at enhancing one’s ego by supporting one’s positive resource rather than exploring problems and issues. It is containing and highly structured compared to BMGIM and it focuses on the here-and-now.

    I will introduce how the SMI method is conducted by illustrating a few case examples supervised by me and conducted by graduates and trainees of the Music and Imagery training in Korea.

  1. The Art of Playful Mobility in Museums

    DEFF Research Database (Denmark)

    Froes, Isabel Cristina G.; Walker, Kevin

    2012-01-01

    Many of us interact with other people in online games and social networks, through multiple digital devices. But harnessing playful and mobile activities for museum learning is mostly undeveloped. In this chapter we explore play as a structure to support visitor learning, drawing from international...... research in museums and interaction design. We argue that play and mobility provide museums with ready-made structures and concepts which help them plan for visitor learning....

  2. Precise Ortho Imagery as the Source for Authoritative Airport Mapping

    Science.gov (United States)

    Howard, H.; Hummel, P.

    2016-06-01

    As the aviation industry moves from paper maps and charts to the digital cockpit and electronic flight bag, producers of these products need current and accurate data to ensure flight safety. FAA (Federal Aviation Administration) and ICAO (International Civil Aviation Organization) require certified suppliers to follow a defined protocol to produce authoritative map data for the aerodrome. Typical airport maps have been produced to meet 5 m accuracy requirements. The new digital aviation world is moving to 1 m accuracy maps to provide better situational awareness on the aerodrome. The commercial availability of 0.5 m satellite imagery combined with accurate ground control is enabling the production of avionics certified .85 m orthophotos of airports around the globe. CompassData maintains an archive of over 400+ airports as source data to support producers of 1 m certified Aerodrome Mapping Database (AMDB) critical to flight safety and automated situational awareness. CompassData is a DO200A certified supplier of authoritative orthoimagery and attendees will learn how to utilize current airport imagery to build digital aviation mapping products.

  3. PRECISE ORTHO IMAGERY AS THE SOURCE FOR AUTHORITATIVE AIRPORT MAPPING

    Directory of Open Access Journals (Sweden)

    H. Howard

    2016-06-01

    Full Text Available As the aviation industry moves from paper maps and charts to the digital cockpit and electronic flight bag, producers of these products need current and accurate data to ensure flight safety. FAA (Federal Aviation Administration and ICAO (International Civil Aviation Organization require certified suppliers to follow a defined protocol to produce authoritative map data for the aerodrome. Typical airport maps have been produced to meet 5 m accuracy requirements. The new digital aviation world is moving to 1 m accuracy maps to provide better situational awareness on the aerodrome. The commercial availability of 0.5 m satellite imagery combined with accurate ground control is enabling the production of avionics certified .85 m orthophotos of airports around the globe. CompassData maintains an archive of over 400+ airports as source data to support producers of 1 m certified Aerodrome Mapping Database (AMDB critical to flight safety and automated situational awareness. CompassData is a DO200A certified supplier of authoritative orthoimagery and attendees will learn how to utilize current airport imagery to build digital aviation mapping products.

  4. Application and development trend of digital TV terminal technology under the background of triple play%三网融合背景下数字电视终端技术应用及其发展趋势研究

    Institute of Scientific and Technical Information of China (English)

    黄毅然

    2016-01-01

    In recent years, with the development of science and technology, the continuous improvement of the level of the development of modern society, our country the development of digital technology relatively quickly, under the background of network convergence of digital TV terminal technology has been widely used, it is hlepful to the healthy development of the modernization of China digital TV industry. In this paper, the application of digital TV terminal technology and its development trend under the background of triple play are researched.%近年来,随着现代化社会发展水平的不断提升以及科学技术的进步发展,我国的数字化技术发展相对迅速,在三网融合背景之下的数字化电视终端技术已经得到了广泛应用,有助于我国现代化数字电视事业的健康发展。文章研究了三网融合背景下数字电视终端技术应用与其发展趋势。

  5. Agency Video, Audio and Imagery Library

    Science.gov (United States)

    Grubbs, Rodney

    2015-01-01

    The purpose of this presentation was to inform the ISS International Partners of the new NASA Agency Video, Audio and Imagery Library (AVAIL) website. AVAIL is a new resource for the public to search for and download NASA-related imagery, and is not intended to replace the current process by which the International Partners receive their Space Station imagery products.

  6. Perceptual evaluation of color transformed multispectral imagery

    NARCIS (Netherlands)

    Toet, A.; Jong, M.J. de; Hogervorst, M.A.; Hooge, I.T.C.

    2014-01-01

    Color remapping can give multispectral imagery a realistic appearance. We assessed the practical value of this technique in two observer experiments using monochrome intensified (II) and long-wave infrared (IR) imagery, and color daylight (REF) and fused multispectral (CF) imagery. First, we investi

  7. Perceptual evaluation of color transformed multispectral imagery

    Science.gov (United States)

    Toet, Alexander; de Jong, Michael J.; Hogervorst, Maarten A.; Hooge, Ignace T. C.

    2014-04-01

    Color remapping can give multispectral imagery a realistic appearance. We assessed the practical value of this technique in two observer experiments using monochrome intensified (II) and long-wave infrared (IR) imagery, and color daylight (REF) and fused multispectral (CF) imagery. First, we investigated the amount of detail observers perceive in a short timespan. REF and CF imagery yielded the highest precision and recall measures, while II and IR imagery yielded significantly lower values. This suggests that observers have more difficulty in extracting information from monochrome than from color imagery. Next, we measured eye fixations during free image exploration. Although the overall fixation behavior was similar across image modalities, the order in which certain details were fixated varied. Persons and vehicles were typically fixated first in REF, CF, and IR imagery, while they were fixated later in II imagery. In some cases, color remapping II imagery and fusion with IR imagery restored the fixation order of these image details. We conclude that color remapping can yield enhanced scene perception compared to conventional monochrome nighttime imagery, and may be deployed to tune multispectral image representations such that the resulting fixation behavior resembles the fixation behavior corresponding to daylight color imagery.

  8. Perceptual evaluation of colorized nighttime imagery

    Science.gov (United States)

    Toet, Alexander; de Jong, Michael J.; Hogervorst, Maarten A.; Hooge, Ignace T. C.

    2014-02-01

    We recently presented a color transform that produces fused nighttime imagery with a realistic color appearance (Hogervorst and Toet, 2010, Information Fusion, 11-2, 69-77). To assess the practical value of this transform we performed two experiments in which we compared human scene recognition for monochrome intensified (II) and longwave infrared (IR) imagery, and color daylight (REF) and fused multispectral (CF) imagery. First we investigated the amount of detail observers can perceive in a short time span (the gist of the scene). Participants watched brief image presentations and provided a full report of what they had seen. Our results show that REF and CF imagery yielded the highest precision and recall measures, while both II and IR imagery yielded significantly lower values. This suggests that observers have more difficulty extracting information from monochrome than from color imagery. Next, we measured eye fixations of participants who freely explored the images. Although the overall fixation behavior was similar across image modalities, the order in which certain details were fixated varied. Persons and vehicles were typically fixated first in REF, CF and IR imagery, while they were fixated later in II imagery. In some cases, color remapping II imagery and fusion with IR imagery restored the fixation order of these image details. We conclude that color remapping can yield enhanced scene perception compared to conventional monochrome nighttime imagery, and may be deployed to tune multispectral image representation such that the resulting fixation behavior resembles the fixation behavior for daylight color imagery.

  9. VBMP Digital Terrain Models - 2006/2007 (VA State Plane South)

    Data.gov (United States)

    Federal Emergency Management Agency, Department of Homeland Security — These files contain Digital Elevation Model (DTM) file data for the Commonwealth of Virginia developed from imagery acquired in spring 2006 and 2007. In the spring...

  10. Aircraft Scanners = NASA Digital Aerial Scanners (TMS, TIMS, NS001): Pre 1996

    Data.gov (United States)

    U.S. Geological Survey, Department of the Interior — The Aircraft Scanners data set contains digital imagery acquired from several multispectral scanners including NS-001 Mutispectral scanner, Daedalus thematic mapper...

  11. Aerial Photography and Imagery, Ortho-Corrected, 2006 NBNERR - Save the Bay - URI 1:12,000 Digital True Color Orthophotography; Narragansett Bay orthophotography, prints, and transparancies were taken during late summer of 2006, Published in 2009, 1:12000 (1in=1000ft) scale, State of Rhode Island and Providence Plantations.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Aerial Photography and Imagery, Ortho-Corrected dataset, published at 1:12000 (1in=1000ft) scale, was produced all or in part from Orthoimagery information as...

  12. Aerial Photography and Imagery, Ortho-Corrected, Digital orthophotography was last flown for our county in March 2007 and is available by request in Mr. SID format. Plans are in place for receiving data from the state by early 2012 that was flown in 2010., Published in 2007, 1:600 (1in=50ft) scale, Harford County Government.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Aerial Photography and Imagery, Ortho-Corrected dataset, published at 1:600 (1in=50ft) scale, was produced all or in part from Orthoimagery information as of...

  13. Aerial Photography and Imagery, Ortho-Corrected, Sedgwick County, excluding outside the Wichita metro area, Year 2006, Sectionwide 1:2400 Digital Color Orthophotography, Tiff and MrSID., Published in 2006, 1:2400 (1in=200ft) scale, Sedgwick County, Kansas.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Aerial Photography and Imagery, Ortho-Corrected dataset, published at 1:2400 (1in=200ft) scale, was produced all or in part from Other information as of 2006....

  14. Aerial Photography and Imagery, Ortho-Corrected, Polk County retained Ayres Associates to acquire digital aerial photography during the spring of 2010 suitable for the production of color orthophotography at a 12-inch ground pixel resolution (approximately 956 sq. miles). The photography was obtained du, Published in 2010, 1:2400 (1in=200ft) scale, Polk County, Wisconsin.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Aerial Photography and Imagery, Ortho-Corrected dataset, published at 1:2400 (1in=200ft) scale, was produced all or in part from Orthoimagery information as of...

  15. Information from imagery: ISPRS scientific vision and research agenda

    Science.gov (United States)

    Chen, Jun; Dowman, Ian; Li, Songnian; Li, Zhilin; Madden, Marguerite; Mills, Jon; Paparoditis, Nicolas; Rottensteiner, Franz; Sester, Monika; Toth, Charles; Trinder, John; Heipke, Christian

    2016-05-01

    With the increased availability of very high-resolution satellite imagery, terrain based imaging and participatory sensing, inexpensive platforms, and advanced information and communication technologies, the application of imagery is now ubiquitous, playing an important role in many aspects of life and work today. As a leading organisation in this field, the International Society for Photogrammetry and Remote Sensing (ISPRS) has been devoted to effectively and efficiently obtaining and utilising information from imagery since its foundation in the year 1910. This paper examines the significant challenges currently facing ISPRS and its communities, such as providing high-quality information, enabling advanced geospatial computing, and supporting collaborative problem solving. The state-of-the-art in ISPRS related research and development is reviewed and the trends and topics for future work are identified. By providing an overarching scientific vision and research agenda, we hope to call on and mobilise all ISPRS scientists, practitioners and other stakeholders to continue improving our understanding and capacity on information from imagery and to deliver advanced geospatial knowledge that enables humankind to better deal with the challenges ahead, posed for example by global change, ubiquitous sensing, and a demand for real-time information generation.

  16. Black Men and the Digital Divide

    Science.gov (United States)

    Conceição, Simone C. O.; Martin, Larry G.

    2016-01-01

    This chapter focuses on the role adult educators can play in assisting Black men to overcome the challenges faced in accessing and using digital technology and acquiring appropriate skills in a digital society.

  17. The TViews Table Role-Playing Game

    Directory of Open Access Journals (Sweden)

    Dana Van Devender

    2008-08-01

    Full Text Available The TViews Table Role-Playing Game (TTRPG is a digital tabletop role-playing game that runs on the TViews table, bridging the separate worlds of traditional role-playing games with the growing area of massively multiplayer online role-playing games. The TViews table is an interactive tabletop media platform that can track the location of multiple tagged objects in real-time as they are moved around its surface, providing a simultaneous and coincident graphical display. In this paper we present the implementation of the first version of TTRPG, with a content set based on the traditional Dungeons & Dragons rule-set. We also discuss the results of a user study that used TTRPG to explore the possible social context of digital tabletop role-playing games.

  18. Stereoscopy in cinematographic synthetic imagery

    Science.gov (United States)

    Eisenmann, Jonathan; Parent, Rick

    2009-02-01

    In this paper we present experiments and results pertaining to the perception of depth in stereoscopic viewing of synthetic imagery. In computer animation, typical synthetic imagery is highly textured and uses stylized illumination of abstracted material models by abstracted light source models. While there have been numerous studies concerning stereoscopic capabilities, conventions for staging and cinematography in stereoscopic movies have not yet been well-established. Our long-term goal is to measure the effectiveness of various cinematography techniques on the human visual system in a theatrical viewing environment. We would like to identify the elements of stereoscopic cinema that are important in terms of enhancing the viewer's understanding of a scene as well as providing guidelines for the cinematographer relating to storytelling. In these experiments we isolated stereoscopic effects by eliminating as many other visual cues as is reasonable. In particular, we aim to empirically determine what types of movement in synthetic imagery affect the perceptual depth sensing capabilities of our viewers. Using synthetic imagery, we created several viewing scenarios in which the viewer is asked to locate a target object's depth in a simple environment. The scenarios were specifically designed to compare the effectiveness of stereo viewing, camera movement, and object motion in aiding depth perception. Data were collected showing the error between the choice of the user and the actual depth value, and patterns were identified that relate the test variables to the viewer's perceptual depth accuracy in our theatrical viewing environment.

  19. Dialectical Imagery and Postmodern Research

    Science.gov (United States)

    Davison, Kevin G.

    2006-01-01

    This article suggests utilizing dialectical imagery, as understood by German social philosopher Walter Benjamin, as an additional qualitative data analysis strategy for research into the postmodern condition. The use of images mined from research data may offer epistemological transformative possibilities that will assist in the demystification of…

  20. Fundamentals of Acoustic Backscatter Imagery

    Science.gov (United States)

    2011-09-20

    41 6.12 Geocoding ...47 7.6 Errors in Geocoding .............................................................................................................. 47...h = z - R cos6 (39a) and x = rt sin6. (39b) 6.12 Geocoding Acoustic backscatter imagery data are collected by recording the across-track signals

  1. Digital Video Over Space Systems and Networks

    Science.gov (United States)

    Grubbs, Rodney

    2010-01-01

    This slide presentation reviews the use of digital video with space systems and networks. The earliest use of video was the use of film precluding live viewing, which gave way to live television from space. This has given way to digital video using internet protocol for transmission. This has provided for many improvements with new challenges. Some of these ehallenges are reviewed. The change to digital video transmitted over space systems can provide incredible imagery, however the process must be viewed as an entire system, rather than piece-meal.

  2. Playing With the City: Street Art and Videogames

    DEFF Research Database (Denmark)

    Vazques Marquez, Israel; Pajares Tosca, Susana

    2017-01-01

    that street art encapsulates the act of playing videogames in a visual form. Digital play spills out of our computer screens and occupies the urban space with the explicit intention of involving spectators, who are invited to play in symbolic ways that actualize nostalgic memories of gaming and can be related...... to a more general "play turn" in our culture....

  3. Digital Avionics

    Science.gov (United States)

    Koelbl, Terry G.; Ponchak, Denise; Lamarche, Teresa

    2003-01-01

    Digital Avionics activities played an important role in the advancements made in civil aviation, military systems, and space applications. This document profiles advances made in each of these areas by the aerospace industry, NASA centers, and the U.S. military. Emerging communication technologies covered in this document include Internet connectivity onboard aircraft, wireless broadband communication for aircraft, and a mobile router for aircraft to communicate in multiple communication networks over the course of a flight. Military technologies covered in this document include avionics for unmanned combat air vehicles and microsatellites, and head-up displays. Other technologies covered in this document include an electronic flight bag for the Boeing 777, and surveillance systems for managing airport operations.

  4. A transformation from digital medicine to translational medicine: what roles should clinical doctors play in different phases(T1, T2 and T3)of digital medicine?%从数字医学实践谈转化医学理念——普通临床医生如何认识自己在数字医学T1、T2、T3阶段的角色

    Institute of Scientific and Technical Information of China (English)

    卢绮萍

    2013-01-01

    转化医学的理念已在临床广泛推广,数字医学也在近几年取得快速发展.国内数字医学领域优秀团队的成功元素为:创新的攻关理念、明确的攻关目标、多元的攻关团队、坚韧的攻关精神、精诚团结的攻关核心领导.在此基础上,分析在数字医学的不同阶段,临床医生如何认识自己的角色和任务,树立转化医学理念,从而更好地发挥主观能动性,实现数字医学在临床的跨越发展.%While the concept of translational medicine has been widely carried out in the clinical work, a rapid development has been made in digital medicine in the past few years. In this paper, the successful elements derived from thedomestic outstanding teams in digital medicine are analyzed, which involve the innovative ideas, definite research objects, cooperative team members with multi-disciplinarybackgrounds and the gritty volition, as well as excellent teamleadership. Accordingly, in order to realize a leaping development of digital medicine in clinical work, it is exploredthat what roles and responsibilities clinical doctors should play and perform, and how the concept of translational medicinecould be established by clinical doctors to further promotetheir subjective initiative in different phases of digital medicine.

  5. Movement and stretching imagery during flexibility training.

    Science.gov (United States)

    Vergeer, Ineke; Roberts, Jenny

    2006-02-01

    The aim of this study was to examine the effect of movement and stretching imagery on increases in flexibility. Thirty volunteers took part in a 4 week flexibility training programme. They were randomly assigned to one of three groups: (1) movement imagery, where participants imagined moving the limb they were stretching; (2) stretching imagery, where participants imagined the physiological processes involved in stretching the muscle; and (3) control, where participants did not engage in mental imagery. Active and passive range of motion around the hip was assessed before and after the programme. Participants provided specific ratings of vividness and comfort throughout the programme. Results showed significant increases in flexibility over time, but no differences between the three groups. A significant relationship was found, however, between improved flexibility and vividness ratings in the movement imagery group. Furthermore, both imagery groups scored significantly higher than the control group on levels of comfort, with the movement imagery group also scoring significantly higher than the stretching imagery group. We conclude that the imagery had stronger psychological than physiological effects, but that there is potential for enhancing physiological effects by maximizing imagery vividness, particularly for movement imagery.

  6. Mu and beta rhythm topographies during motor imagery and actual movements.

    Science.gov (United States)

    McFarland, D J; Miner, L A; Vaughan, T M; Wolpaw, J R

    2000-01-01

    People can learn to control the 8-12 Hz mu rhythm and/or the 18-25 Hz beta rhythm in the EEG recorded over sensorimotor cortex and use it to control a cursor on a video screen. Subjects often report using motor imagery to control cursor movement, particularly early in training. We compared in untrained subjects the EEG topographies associated with actual hand movement to those associated with imagined hand movement. Sixty-four EEG channels were recorded while each of 33 adults moved left- or right-hand or imagined doing so. Frequency-specific differences between movement or imagery and rest, and between right- and left-hand movement or imagery, were evaluated by scalp topographies of voltage and r spectra, and principal component analysis. Both movement and imagery were associated with mu and beta rhythm desynchronization. The mu topographies showed bilateral foci of desynchronization over sensorimotor cortices, while the beta topographies showed peak desynchronization over the vertex. Both mu and beta rhythm left/right differences showed bilateral central foci that were stronger on the right side. The independence of mu and beta rhythms was demonstrated by differences for movement and imagery for the subjects as a group and by principal components analysis. The results indicated that the effects of imagery were not simply an attenuated version of the effects of movement. They supply evidence that motor imagery could play an important role in EEG-based communication, and suggest that mu and beta rhythms might provide independent control signals.

  7. Mental Imagery in Depression: Phenomenology, Potential Mechanisms, and Treatment Implications.

    Science.gov (United States)

    Holmes, Emily A; Blackwell, Simon E; Burnett Heyes, Stephanie; Renner, Fritz; Raes, Filip

    2016-01-01

    Mental imagery is an experience like perception in the absence of a percept. It is a ubiquitous feature of human cognition, yet it has been relatively neglected in the etiology, maintenance, and treatment of depression. Imagery abnormalities in depression include an excess of intrusive negative mental imagery; impoverished positive imagery; bias for observer perspective imagery; and overgeneral memory, in which specific imagery is lacking. We consider the contribution of imagery dysfunctions to depressive psychopathology and implications for cognitive behavioral interventions. Treatment advances capitalizing on the representational format of imagery (as opposed to its content) are reviewed, including imagery rescripting, positive imagery generation, and memory specificity training. Consideration of mental imagery can contribute to clinical assessment and imagery-focused psychological therapeutic techniques and promote investigation of underlying mechanisms for treatment innovation. Research into mental imagery in depression is at an early stage. Work that bridges clinical psychology and neuroscience in the investigation of imagery-related mechanisms is recommended.

  8. Land cover/use mapping using multi-band imageries captured by Cropcam Unmanned Aerial Vehicle Autopilot (UAV) over Penang Island, Malaysia

    Science.gov (United States)

    Fuyi, Tan; Boon Chun, Beh; Mat Jafri, Mohd Zubir; Hwee San, Lim; Abdullah, Khiruddin; Mohammad Tahrin, Norhaslinda

    2012-11-01

    The problem of difficulty in obtaining cloud-free scene at the Equatorial region from satellite platforms can be overcome by using airborne imagery. Airborne digital imagery has proved to be an effective tool for land cover studies. Airborne digital camera imageries were selected in this present study because of the airborne digital image provides higher spatial resolution data for mapping a small study area. The main objective of this study is to classify the RGB bands imageries taken from a low-altitude Cropcam UAV for land cover/use mapping over USM campus, penang Island, Malaysia. A conventional digital camera was used to capture images from an elevation of 320 meter on board on an UAV autopilot. This technique was cheaper and economical compared with other airborne studies. The artificial neural network (NN) and maximum likelihood classifier (MLC) were used to classify the digital imageries captured by using Cropcam UAV over USM campus, Penang Islands, Malaysia. The supervised classifier was chosen based on the highest overall accuracy (statistic (<0.8). The classified land cover map was geometrically corrected to provide a geocoded map. The results produced by this study indicated that land cover features could be clearly identified and classified into a land cover map. This study indicates the use of a conventional digital camera as a sensor on board on an UAV autopilot can provide useful information for planning and development of a small area of coverage.

  9. Digital Preservation.

    Science.gov (United States)

    Yakel, Elizabeth

    2001-01-01

    Reviews research on digital preservation issues, including born-digital and digitally recreated documents. Discusses electronic records research; metadata and other standards; electronic mail; Web-based documents; moving images media; selection of materials for digitization, including primary sources; administrative issues; media stability…

  10. Satellite Imagery Assisted Road-Based Visual Navigation System

    Science.gov (United States)

    Volkova, A.; Gibbens, P. W.

    2016-06-01

    There is a growing demand for unmanned aerial systems as autonomous surveillance, exploration and remote sensing solutions. Among the key concerns for robust operation of these systems is the need to reliably navigate the environment without reliance on global navigation satellite system (GNSS). This is of particular concern in Defence circles, but is also a major safety issue for commercial operations. In these circumstances, the aircraft needs to navigate relying only on information from on-board passive sensors such as digital cameras. An autonomous feature-based visual system presented in this work offers a novel integral approach to the modelling and registration of visual features that responds to the specific needs of the navigation system. It detects visual features from Google Earth* build a feature database. The same algorithm then detects features in an on-board cameras video stream. On one level this serves to localise the vehicle relative to the environment using Simultaneous Localisation and Mapping (SLAM). On a second level it correlates them with the database to localise the vehicle with respect to the inertial frame. The performance of the presented visual navigation system was compared using the satellite imagery from different years. Based on comparison results, an analysis of the effects of seasonal, structural and qualitative changes of the imagery source on the performance of the navigation algorithm is presented. * The algorithm is independent of the source of satellite imagery and another provider can be used

  11. Imagining a brighter future: the effect of positive imagery training on mood, prospective mental imagery and emotional bias in older adults.

    Science.gov (United States)

    Murphy, Susannah E; Clare O'Donoghue, M; Drazich, Erin H S; Blackwell, Simon E; Christina Nobre, Anna; Holmes, Emily A

    2015-11-30

    Positive affect and optimism play an important role in healthy ageing and are associated with improved physical and cognitive health outcomes. This study investigated whether it is possible to boost positive affect and associated positive biases in this age group using cognitive training. The effect of computerised imagery-based cognitive bias modification on positive affect, vividness of positive prospective imagery and interpretation biases in older adults was measured. 77 older adults received 4 weeks (12 sessions) of imagery cognitive bias modification or a control condition. They were assessed at baseline, post-training and at a one-month follow-up. Both groups reported decreased negative affect and trait anxiety, and increased optimism across the three assessments. Imagery cognitive bias modification significantly increased the vividness of positive prospective imagery post-training, compared with the control training. Contrary to our hypothesis, there was no difference between the training groups in negative interpretation bias. This is a useful demonstration that it is possible to successfully engage older adults in computer-based cognitive training and to enhance the vividness of positive imagery about the future in this group. Future studies are needed to assess the longer-term consequences of such training and the impact on affect and wellbeing in more vulnerable groups.

  12. Imagining a brighter future: The effect of positive imagery training on mood, prospective mental imagery and emotional bias in older adults

    Science.gov (United States)

    Murphy, Susannah E.; Clare O’Donoghue, M.; Drazich, Erin H.S.; Blackwell, Simon E.; Christina Nobre, Anna; Holmes, Emily A.

    2015-01-01

    Positive affect and optimism play an important role in healthy ageing and are associated with improved physical and cognitive health outcomes. This study investigated whether it is possible to boost positive affect and associated positive biases in this age group using cognitive training. The effect of computerised imagery-based cognitive bias modification on positive affect, vividness of positive prospective imagery and interpretation biases in older adults was measured. 77 older adults received 4 weeks (12 sessions) of imagery cognitive bias modification or a control condition. They were assessed at baseline, post-training and at a one-month follow-up. Both groups reported decreased negative affect and trait anxiety, and increased optimism across the three assessments. Imagery cognitive bias modification significantly increased the vividness of positive prospective imagery post-training, compared with the control training. Contrary to our hypothesis, there was no difference between the training groups in negative interpretation bias. This is a useful demonstration that it is possible to successfully engage older adults in computer-based cognitive training and to enhance the vividness of positive imagery about the future in this group. Future studies are needed to assess the longer-term consequences of such training and the impact on affect and wellbeing in more vulnerable groups. PMID:26235478

  13. Volumetric Forest Change Detection Through Vhr Satellite Imagery

    Science.gov (United States)

    Akca, Devrim; Stylianidis, Efstratios; Smagas, Konstantinos; Hofer, Martin; Poli, Daniela; Gruen, Armin; Sanchez Martin, Victor; Altan, Orhan; Walli, Andreas; Jimeno, Elisa; Garcia, Alejandro

    2016-06-01

    Quick and economical ways of detecting of planimetric and volumetric changes of forest areas are in high demand. A research platform, called FORSAT (A satellite processing platform for high resolution forest assessment), was developed for the extraction of 3D geometric information from VHR (very-high resolution) imagery from satellite optical sensors and automatic change detection. This 3D forest information solution was developed during a Eurostars project. FORSAT includes two main units. The first one is dedicated to the geometric and radiometric processing of satellite optical imagery and 2D/3D information extraction. This includes: image radiometric pre-processing, image and ground point measurement, improvement of geometric sensor orientation, quasiepipolar image generation for stereo measurements, digital surface model (DSM) extraction by using a precise and robust image matching approach specially designed for VHR satellite imagery, generation of orthoimages, and 3D measurements in single images using mono-plotting and in stereo images as well as triplets. FORSAT supports most of the VHR optically imagery commonly used for civil applications: IKONOS, OrbView - 3, SPOT - 5 HRS, SPOT - 5 HRG, QuickBird, GeoEye-1, WorldView-1/2, Pléiades 1A/1B, SPOT 6/7, and sensors of similar type to be expected in the future. The second unit of FORSAT is dedicated to 3D surface comparison for change detection. It allows users to import digital elevation models (DEMs), align them using an advanced 3D surface matching approach and calculate the 3D differences and volume changes between epochs. To this end our 3D surface matching method LS3D is being used. FORSAT is a single source and flexible forest information solution with a very competitive price/quality ratio, allowing expert and non-expert remote sensing users to monitor forests in three and four dimensions from VHR optical imagery for many forest information needs. The capacity and benefits of FORSAT have been tested in

  14. Practical digital mammography

    Energy Technology Data Exchange (ETDEWEB)

    Hashimoto, Beverly E. [Washington Univ., Seattle, WA (United States)]|[Virginia Mason Medical Center, VA (United States)

    2008-07-01

    This book is meant for the radiologist who is facing the challenge of organizing a digital mammographic imaging center. This text is meant to be a practical book that provides information about digital mammographic physics and equipment which will allow one to intelligently compare technologies and systems. Some of the major challenges include: large expense; rapidly changing technology, and inconsistent connectivity; and finally, need for strong information technology support. The initial conversion cost to digital mammographic imaging is relatively expensive due to the cost of digital mammography hardware, software, and storage. Virtually all other imaging modalities are being converted to purely digital storage and transfer, and the digital trend in mammography is inevitable. Technical advantages of digital mammography are described. However, the improved flexibility in image display and transfer are some of its strongest features. In conclusion, although there are increasing imaging modalities that may be used to evaluate breast disease, mammography will continue to play a key role in detecting breast cancer. To be an effective imager, the radiologist should become familiar with digital mammography and understand its role within the increasing complex structure of breast imaging techniques.

  15. GLIDER: Free tool imagery data visualization, analysis and mining

    Science.gov (United States)

    Ramachandran, R.; Graves, S. J.; Berendes, T.; Maskey, M.; Chidambaram, C.; Hogan, P.; Gaskin, T.

    2009-12-01

    Satellite imagery can be analyzed to extract thematic information, which has increasingly been used as a source of information for making policy decisions. The uses of such thematic information can vary from military applications such as detecting assets of interest to science applications such as characterizing land-use/land cover change at local, regional and global scales. However, extracting thematic information using satellite imagery is a non-trivial task. It requires a user to preprocess the data by applying operations for radiometric and geometric corrections. The user also needs to be able to visualize the data and apply different image enhancement operations to digitally improve the images to identify subtle information that might be otherwise missed. Finally, the user needs to apply different information extraction algorithms to the imagery to obtain the thematic information. At present, there are limited tools that provide users with the capability to easily extract and exploit the information contained within the satellite imagery. This presentation will present GLIDER, a free software tool addressing this void. GLIDER provides users with a easy to use tool to visualize, analyze and mine satellite imagery. GLIDER allows users to visualize and analyze satellite in its native sensor view, an important capability because any transformation to either a geographic coordinate system or any projected coordinate system entails spatial and intensity interpolation; and hence, loss of information. GLIDER allows users to perform their analysis in the native sensor view without any loss of information. GLIDER provides users with a full suite of image processing algorithms that can be used to enhance the satellite imagery. It also provides pattern recognition and data mining algorithms for information extraction. GLIDER allows its users to project satellite data and the analysis/mining results onto to a globe and overlay additional data layers. Traditional analysis

  16. Updating Maps Using High Resolution Satellite Imagery

    Science.gov (United States)

    Alrajhi, Muhamad; Shahzad Janjua, Khurram; Afroz Khan, Mohammad; Alobeid, Abdalla

    2016-06-01

    Kingdom of Saudi Arabia is one of the most dynamic countries of the world. We have witnessed a very rapid urban development's which are altering Kingdom's landscape on daily basis. In recent years a substantial increase in urban populations is observed which results in the formation of large cities. Considering this fast paced growth, it has become necessary to monitor these changes, in consideration with challenges faced by aerial photography projects. It has been observed that data obtained through aerial photography has a lifecycle of 5-years because of delay caused by extreme weather conditions and dust storms which acts as hindrances or barriers during aerial imagery acquisition, which has increased the costs of aerial survey projects. All of these circumstances require that we must consider some alternatives that can provide us easy and better ways of image acquisition in short span of time for achieving reliable accuracy and cost effectiveness. The approach of this study is to conduct an extensive comparison between different resolutions of data sets which include: Orthophoto of (10 cm) GSD, Stereo images of (50 cm) GSD and Stereo images of (1 m) GSD, for map updating. Different approaches have been applied for digitizing buildings, roads, tracks, airport, roof level changes, filling stations, buildings under construction, property boundaries, mosques buildings and parking places.

  17. JPEG 2000 compression of medical imagery

    Science.gov (United States)

    Foos, David H.; Muka, Edward; Slone, Richard M.; Erickson, Bradley J.; Flynn, Michael J.; Clunie, David A.; Hildebrand, Lloyd; Kohm, Kevin S.; Young, Susan S.

    2000-05-01

    A multi-institution effort was conducted to assess the visual quality performance of various JPEG 2000 (Joint Photographic Experts Group) lossy compression options for medical imagery. The purpose of this effort was to provide clinical data to DICOM (Digital Imaging and Communications in Medicine) WG IV to support recommendations to the JPEG 2000 committee regarding the definition of the base standard. A variety of projection radiographic, cross sectional, and visible light images were compressed-reconstructed using various JPEG 2000 options and with the current JPEG standard. The options that were assessed included integer and floating point transforms, scalar and vector quantization, and the use of visual weighting. Experts from various institutions used a sensitive rank order methodology to evaluate the images. The proposed JPEG 2000 scheme appears to offer similar or improved image quality performance relative to the current JPEG standard for compression of medical images, yet has additional features useful for medical applications, indicating that it should be included as an additional standard transfer syntax in DICOM.

  18. ESTIMATION OF CORK PRODUCTION USINGAERIAL IMAGERY1

    Directory of Open Access Journals (Sweden)

    Peter Surovy

    2015-10-01

    Full Text Available ABSTRACT Inventory and prediction of cork harvest over time and space is important to forest managers who must plan and organize harvest logistics (transport, storage, etc.. Common field inventory methods including the stem density, diameter and height structure are costly and generally point (plot based. Furthermore, the irregular horizontal structure of cork oak stands makes it difficult, if not impossible, to interpolate between points. We propose a new method to estimate cork production using digital multispectral aerial imagery. We study the spectral response of individual trees in visible and near infrared spectra and then correlate that response with cork production prior to harvest. We use ground measurements of individual trees production to evaluate the model’s predictive capacity. We propose 14 candidate variables to predict cork production based on crown size in combination with different NDVI index derivates. We use Akaike Information Criteria to choose the best among them. The best model is composed of combinations of different NDVI derivates that include red, green, and blue channels. The proposed model is 15% more accurate than a model that includes only a crown projection without any spectral information.

  19. Application of digital image processing techniques to astronomical imagery, 1979

    Science.gov (United States)

    Lorre, J. J.

    1979-01-01

    Several areas of applications of image processing to astronomy were identified and discussed. These areas include: (1) deconvolution for atmospheric seeing compensation; a comparison between maximum entropy and conventional Wiener algorithms; (2) polarization in galaxies from photographic plates; (3) time changes in M87 and methods of displaying these changes; (4) comparing emission line images in planetary nebulae; and (5) log intensity, hue saturation intensity, and principal component color enhancements of M82. Examples are presented of these techniques applied to a variety of objects.

  20. Application of digital image processing techniques to astronomical imagery 1980

    Science.gov (United States)

    Lorre, J. J.

    1981-01-01

    Topics include: (1) polar coordinate transformations (M83); (2) multispectral ratios (M82); (3) maximum entropy restoration (M87); (4) automated computation of stellar magnitudes in nebulosity; (5) color and polarization; (6) aliasing.

  1. Object-Oriented Image Clustering Method Using UAS Photogrammetric Imagery

    Science.gov (United States)

    Lin, Y.; Larson, A.; Schultz-Fellenz, E. S.; Sussman, A. J.; Swanson, E.; Coppersmith, R.

    2016-12-01

    Unmanned Aerial Systems (UAS) have been used widely as an imaging modality to obtain remotely sensed multi-band surface imagery, and are growing in popularity due to their efficiency, ease of use, and affordability. Los Alamos National Laboratory (LANL) has employed the use of UAS for geologic site characterization and change detection studies at a variety of field sites. The deployed UAS equipped with a standard visible band camera to collect imagery datasets. Based on the imagery collected, we use deep sparse algorithmic processing to detect and discriminate subtle topographic features created or impacted by subsurface activities. In this work, we develop an object-oriented remote sensing imagery clustering method for land cover classification. To improve the clustering and segmentation accuracy, instead of using conventional pixel-based clustering methods, we integrate the spatial information from neighboring regions to create super-pixels to avoid salt-and-pepper noise and subsequent over-segmentation. To further improve robustness of our clustering method, we also incorporate a custom digital elevation model (DEM) dataset generated using a structure-from-motion (SfM) algorithm together with the red, green, and blue (RGB) band data for clustering. In particular, we first employ an agglomerative clustering to create an initial segmentation map, from where every object is treated as a single (new) pixel. Based on the new pixels obtained, we generate new features to implement another level of clustering. We employ our clustering method to the RGB+DEM datasets collected at the field site. Through binary clustering and multi-object clustering tests, we verify that our method can accurately separate vegetation from non-vegetation regions, and are also able to differentiate object features on the surface.

  2. User Validation of VIIRS Satellite Imagery

    Directory of Open Access Journals (Sweden)

    Don Hillger

    2015-12-01

    Full Text Available Visible/Infrared Imaging Radiometer Suite (VIIRS Imagery from the Suomi National Polar-orbiting Partnership (S-NPP satellite is the finest spatial resolution (375 m multi-spectral imagery of any operational meteorological satellite to date. The Imagery environmental data record (EDR has been designated as a Key Performance Parameter (KPP for VIIRS, meaning that its performance is vital to the success of a series of Joint Polar Satellite System (JPSS satellites that will carry this instrument. Because VIIRS covers the high-latitude and Polar Regions especially well via overlapping swaths from adjacent orbits, the Alaska theatre in particular benefits from VIIRS more than lower-latitude regions. While there are no requirements that specifically address the quality of the EDR Imagery aside from the VIIRS SDR performance requirements, the value of VIIRS Imagery to operational users is an important consideration in the Cal/Val process. As such, engaging a wide diversity of users constitutes a vital part of the Imagery validation strategy. The best possible image quality is of utmost importance. This paper summarizes the Imagery Cal/Val Team’s quality assessment in this context. Since users are a vital component to the validation of VIIRS Imagery, specific examples of VIIRS imagery applied to operational needs are presented as an integral part of the post-checkout Imagery validation.

  3. Bistatic SAR: Imagery & Image Products.

    Energy Technology Data Exchange (ETDEWEB)

    Yocky, David A.; Wahl, Daniel E.; Jakowatz, Charles V,

    2014-10-01

    While typical SAR imaging employs a co-located (monostatic) RADAR transmitter and receiver, bistatic SAR imaging separates the transmitter and receiver locations. The transmitter and receiver geometry determines if the scattered signal is back scatter, forward scatter, or side scatter. The monostatic SAR image is backscatter. Therefore, depending on the transmitter/receiver collection geometry, the captured imagery may be quite different that that sensed at the monostatic SAR. This document presents imagery and image products formed from captured signals during the validation stage of the bistatic SAR research. Image quality and image characteristics are discussed first. Then image products such as two-color multi-view (2CMV) and coherent change detection (CCD) are presented.

  4. ERTS-A satellite imagery

    Science.gov (United States)

    Colvocoresses, Alden P.

    1970-01-01

    The first satellite designed to survey the Earth's resources is scheduled to be launched in 1972. This satellite, known as ERTS-A, will telemeter frames of imagery each covering 100-nautical-mile squares of the Earth. Except for the internal anomalies in the sensor system, the imagery, after being properly scaled, rectified, and controlled, may be considered an orthographic view of the Earth and used as a planimetric photomap. The accuracy of this photomap will be limited, principally by the geometric fidelity of the sensor system rather than by external effects, such as relief displacement, which restrict the direct cartographic use of the conventional aerial photograph. ERST-A is not designed as a topographic mapping satellite but does have real potential' for thematic mapping particularly in areas now covered by topographic maps.

  5. Resolution Enhancement of Multilook Imagery

    Energy Technology Data Exchange (ETDEWEB)

    Galbraith, Amy E. [Univ. of Arizona, Tucson, AZ (United States)

    2004-07-01

    This dissertation studies the feasibility of enhancing the spatial resolution of multi-look remotely-sensed imagery using an iterative resolution enhancement algorithm known as Projection Onto Convex Sets (POCS). A multi-angle satellite image modeling tool is implemented, and simulated multi-look imagery is formed to test the resolution enhancement algorithm. Experiments are done to determine the optimal con guration and number of multi-angle low-resolution images needed for a quantitative improvement in the spatial resolution of the high-resolution estimate. The important topic of aliasing is examined in the context of the POCS resolution enhancement algorithm performance. In addition, the extension of the method to multispectral sensor images is discussed and an example is shown using multispectral confocal fluorescence imaging microscope data. Finally, the remote sensing issues of atmospheric path radiance and directional reflectance variations are explored to determine their effect on the resolution enhancement performance.

  6. Videogames as digital audiovisual performance

    OpenAIRE

    d'Escrivan, Julio

    2014-01-01

    Video games are an ideal medium for creating a live-cinema experience because of their potential for cinematic narrative and open structure. "Performing digital media' as opposed to 'performing with digital media' or using digital media in performance, means to play the media like a musical instrument as much as possible. This is to be able to control and finely nuance the audiovisual and kinetic data stream through live manipulation and interaction on stage. This is, in a sense, to grant the...

  7. Biological data extraction from imagery - How far can we go? A case study from the Mid-Atlantic Ridge.

    Science.gov (United States)

    Cuvelier, Daphne; de Busserolles, Fanny; Lavaud, Romain; Floc'h, Estelle; Fabri, Marie-Claire; Sarradin, Pierre-Marie; Sarrazin, Jozée

    2012-12-01

    In the past few decades, hydrothermal vent research has progressed immensely, resulting in higher-quality samples and long-term studies. With time, scientists are becoming more aware of the impacts of sampling on the faunal communities and are looking for less invasive ways to investigate the vent ecosystems. In this perspective, imagery analysis plays a very important role. With this study, we test which factors can be quantitatively and accurately assessed based on imagery, through comparison with faunal sampling. Twelve instrumented chains were deployed on the Atlantic Eiffel Tower hydrothermal edifice and the corresponding study sites were subsequently sampled. Discrete, quantitative samples were compared to the imagery recorded during the experiment. An observer-effect was tested, by comparing imagery data gathered by different scientists. Most factors based on image analyses concerning Bathymodiolus azoricus mussels were shown to be valid representations of the corresponding samples. Additional ecological assets, based exclusively on imagery, were included.

  8. Exploring the Use of Interactive Digital Storytelling Video: Promoting Student Engagement and Learning in a University Hybrid Course

    Science.gov (United States)

    Shelton, Catharyn C.; Warren, Annie E.; Archambault, Leanna M.

    2016-01-01

    This study explores interactive digital storytelling in a university hybrid course. Digital stories leverage imagery and narrative-based content to explore concepts, while appealing to millennials. When digital storytelling is used as the main source of course content, tensions arise regarding how to engage and support student learning while…

  9. Children's Empowerment in Play

    Science.gov (United States)

    Canning, Natalie

    2007-01-01

    This article examines the level of empowerment and autonomy children can create in their play experiences. It examines the play discourses that children build and maintain and considers the importance of play contexts in supporting children's emotional and social development. These aspects of play are often unseen or misunderstood by the adult…

  10. The Play of Psychotherapy

    Science.gov (United States)

    Marks-Tarlow, Terry

    2012-01-01

    The author reviews the role of play within psychotherapy. She does not discuss the formal play therapy especially popular for young children, nor play from the Jungian perspective that encourages the use of the sand tray with adults. Instead, she focuses on the informal use of play during psychotherapy as it is orchestrated intuitively. Because…

  11. Two people playing together: some thoughts on play, playing, and playfulness in psychoanalytic work.

    Science.gov (United States)

    Vliegen, Nicole

    2009-01-01

    Children's play and the playfulness of adolescents and adults are important indicators of personal growth and development. When a child is not able to play, or an adolescent/adult is not able to be playful with thoughts and ideas, psychotherapy can help to find a more playful and creative stance. Elaborating Winnicott's (1968, p. 591) statement that "psychotherapy has to do with two people playing together," three perspectives on play in psychotherapy are discussed. In the first point of view, the child gets in touch with and can work through aspects of his or her inner world, while playing in the presence of the therapist. The power of play is then rooted in the playful communication with the self In a second perspective, in play the child is communicating aspects of his or her inner world to the therapist as a significant other. In a third view, in "playing together" child and therapist are coconstructing new meanings. These three perspectives on play are valid at different moments of a therapy process or for different children, depending on the complex vicissitudes of the child's constitution, life experiences, development, and psychic structure. Concerning these three perspectives, a parallel can be drawn between the therapist's attitude toward the child's play and the way the therapist responds to the verbal play of an adolescent or adult. We illustrate this with the case of Jacob, a late adolescent hardly able to play with ideas.

  12. Applying Play to Therapy.

    Science.gov (United States)

    Ritter, Patricia S.; Fokes, Joann

    The objectives of this paper are (1) to present the relationship of play to language and cognition, (2) to describe the stages of play and discuss recent literature about the characteristics of play, and (3) to describe the use of play with the multifaceted goals of cognition, pragmatics, semantics, syntax, and morphology as an intervention…

  13. Digital Culture and Digital Library

    Directory of Open Access Journals (Sweden)

    Yalçın Yalçınkaya

    2016-12-01

    Full Text Available In this study; digital culture and digital library which have a vital connection with each other are examined together. The content of the research consists of the interaction of culture, information, digital culture, intellectual technologies, and digital library concepts. The study is an entry work to integrity of digital culture and digital library theories and aims to expand the symmetry. The purpose of the study is to emphasize the relation between the digital culture and digital library theories acting intersection of the subjects that are examined. Also the perspective of the study is based on examining the literature and analytical evaluation in both studies (digital culture and digital library. Within this context, the methodology of the study is essentially descriptive and has an attribute for the transmission and synthesis of distributed findings produced in the field of the research. According to the findings of the study results, digital culture is an inclusive term that describes the effects of intellectual technologies in the field of information and communication. Information becomes energy and the spectrum of the information is expanding in the vertical rise through the digital culture. In this context, the digital library appears as a new living space of a new environment. In essence, the digital library is information-oriented; has intellectual technology support and digital platform; is in a digital format; combines information resources and tools in relationship/communication/cooperation by connectedness, and also it is the dynamic face of the digital culture in time and space independence. Resolved with the study is that the digital libraries are active and effective in the formation of global knowing and/or mass wisdom in the process of digital culture.

  14. Mental imagery of positive and neutral memories: A fMRI study comparing field perspective imagery to observer perspective imagery.

    Science.gov (United States)

    Grol, Maud; Vingerhoets, Guy; De Raedt, Rudi

    2017-02-01

    Imagery perspective can influence what information is recalled, processing style, and emotionality; however, the understanding of possible mechanisms mediating these observed differences is still limited. We aimed to examine differences between memory recall from a field perspective and observer perspective at the neurobiological level, in order to improve our understanding of what is underlying the observed differences at the behavioral level. We conducted a fMRI study in healthy individuals, comparing imagery perspectives during recall of neutral and positive autobiographical memories. Behavioral results revealed field perspective imagery of positive memories, as compared to observer perspective, to be associated with more positive feelings afterwards. At the neurobiological level, contrasting observer perspective to field perspective imagery was associated with greater activity, or less decrease relative to the control visual search task, in the right precuneus and in the right temporoparietal junction (TPJ). Greater activity in the right TPJ during an observer perspective as compared to field perspective could reflect performing a greater shift of perspective and mental state during observer perspective imagery than field perspective imagery. Differential activity in the precuneus may reflect that during observer perspective imagery individuals are more likely to engage in (self-) evaluative processing and visuospatial processing. Our findings contribute to a growing understanding of how imagery perspective can influence the type of information that is recalled and the intensity of the emotional response. Observer perspective imagery may not automatically reduce emotional intensity but this could depend on how the imagined situation is evaluated in relation to the self-concept.

  15. Aerial Photography and Imagery, Oblique, Pictometry Imagery, Published in 2009, North Georgia College and State University.

    Data.gov (United States)

    NSGIC GIS Inventory (aka Ramona) — This Aerial Photography and Imagery, Oblique dataset, was produced all or in part from Orthoimagery information as of 2009. It is described as 'Pictometry Imagery'....

  16. Digital photography

    National Research Council Canada - National Science Library

    Windsor, J S; Rodway, G W; Middleton, P M; McCarthy, S

    2006-01-01

    The emergence of a new generation of "point-and-shoot" digital cameras offers doctors a compact, portable and user-friendly solution to the recording of highly detailed digital photographs and video images...

  17. Advanced Image Processing of Aerial Imagery

    Science.gov (United States)

    Woodell, Glenn; Jobson, Daniel J.; Rahman, Zia-ur; Hines, Glenn

    2006-01-01

    Aerial imagery of the Earth is an invaluable tool for the assessment of ground features, especially during times of disaster. Researchers at the NASA Langley Research Center have developed techniques which have proven to be useful for such imagery. Aerial imagery from various sources, including Langley's Boeing 757 Aries aircraft, has been studied extensively. This paper discusses these studies and demonstrates that better-than-observer imagery can be obtained even when visibility is severely compromised. A real-time, multi-spectral experimental system will be described and numerous examples will be shown.

  18. The Functional Equivalence between Movement Imagery, Observation, and Execution Influences Imagery Ability

    Science.gov (United States)

    Williams, Sarah E.; Cumming, Jennifer; Edwards, Martin G.

    2011-01-01

    Based on literature identifying movement imagery, observation, and execution to elicit similar areas of neural activity, research has demonstrated that movement imagery and observation successfully prime movement execution. To investigate whether movement and observation could prime ease of imaging from an external visual-imagery perspective, an…

  19. Digital Tectonics

    DEFF Research Database (Denmark)

    Christiansen, Karl; Borup, Ruben; Søndergaard, Asbjørn;

    2014-01-01

    Digital Tectonics treats the architectonical possibilities in digital generation of form and production. The publication is the first volume of a series, in which aspects of the strategic focus areas of the Aarhus School of Architecture will be disseminated.......Digital Tectonics treats the architectonical possibilities in digital generation of form and production. The publication is the first volume of a series, in which aspects of the strategic focus areas of the Aarhus School of Architecture will be disseminated....

  20. Digital squares

    DEFF Research Database (Denmark)

    Forchhammer, Søren; Kim, Chul E

    1988-01-01

    Digital squares are defined and their geometric properties characterized. A linear time algorithm is presented that considers a convex digital region and determines whether or not it is a digital square. The algorithm also determines the range of the values of the parameter set of its preimages....... The analysis involves transforming the boundary of a digital region into parameter space of slope and y-intercept...