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Format for interchange and display of 3d terrain data
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Powell, Mark Backes, Paul Vona, Marsette Norris, Jeffrey Morrison, Jack |
| Copyright Year | 2004 |
| Description | Visible Scalable Terrain (ViSTa) is a software format for production, interchange, and display of three-dimensional (3D) terrain data acquired by stereoscopic cameras of robotic vision systems. ViSTa is designed to support scalability of data, accuracy of displayed terrain images, and optimal utilization of computational resources. In a ViSTa file, an area of terrain is represented, at one or more levels of detail, by coordinates of isolated points and/or vertices of triangles derived from a texture map that, in turn, is derived from original terrain images. Unlike prior terrain-image software formats, ViSTa includes provisions to ensure accuracy of texture coordinates. Whereas many such formats are based on 2.5-dimensional terrain models and impose additional regularity constraints on data, ViSTa is based on a 3D model without regularity constraints. Whereas many prior formats require external data for specifying image-data coordinate systems, ViSTa provides for the inclusion of coordinate-system data within data files. ViSTa admits highspeed loading and display within a Java program. ViSTa is designed to minimize file sizes and maximize compressibility and to support straightforward reduction of resolution to reduce file size for Internet-based distribution. |
| File Size | 65265 |
| Page Count | 1 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20110020460 |
| Archival Resource Key | ark:/13960/t39073390 |
| Language | English |
| Publisher Date | 2004-12-01 |
| Access Restriction | Open |
| Subject Keyword | Computer Vision Image Processing Display Devices Java Programming Language Stereoscopic Vision Data Systems Computer Programs Format Terrain Computer Graphics Internets Three Dimensional Models Digital Elevation Models Software Engineering Communication Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
