Software Support for a Video Disc Based Terrain Map Display System
MITRE CORP BEDFORD MA
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The large capacity and random access capability of optical scan video discs make them an excellent storage medium for background maps used in tactical situation displays. Early experience with paper map photographs on video discs revealed serious resolution and clutter problems when these maps are overlaid with intelligence symbology. To improve the displays, the Video Frame Store VFS was built. The VFS can load a series of video disc frames, each containing an image of an individual feature, which together form a composite map of the area of interest. Once the images have been loaded, they can be manipulated digitally by microcode programs in the VFS. This paper describes the support software which was written to turn the video disc and the VFS into a full-scale terrain map display system. Three interactive software packages are described in detail, with full user manuals in the appendices. The data base structure for map applications is described, as well as the video disc layout. Also included are projections of short term and long term plans to continue these efforts, and a general survey of commercially available devices with features comparable to the Video Frame Store.
- Information Science
- Cartography and Aerial Photography
- Computer Programming and Software
- Computer Hardware