Geo-spatial visualization for situational awareness

Author

Feibush, Eliot ; Gagvani, Nikhil ; Williams, Daniel

Author_Institution

Sarnoff Corp., Princeton, NJ, USA

fYear

1999

fDate

29-29 Oct. 1999

Firstpage

441

Lastpage

559

Abstract

Situational awareness applications require a highly detailed geospatial visualization covering a large geographic area. Conventional polygon based terrain modeling would exceed the capacity of current computer rendering. Terrain visualization techniques for a situational awareness application are described in this case study. Visualizing large amounts of terrain data has been achieved using very large texture maps. Sun shading is applied to the terrain texture map to enhance perception of relief features. Perception of submarine positions has been enhanced using a translucent, textured water surface.

Keywords

cartography; data visualisation; image texture; rendering (computer graphics); terrain mapping; visual databases; case study; computer rendering; geo-spatial visualization; geospatial visualization; large geographic area; polygon based terrain modeling; relief features; situational awareness; submarine positions; sun shading; terrain texture map; terrain visualization techniques; textured water surface; translucent textured water surface; very large texture maps; Application software; Computer displays; Data visualization; Earth; Image resolution; Level measurement; Military computing; Navigation; Solid modeling; Terrain mapping;

fLanguage

English

Publisher

ieee

Conference_Titel

Visualization '99. Proceedings

Conference_Location

San Francisco, CA, USA

ISSN

1070-2385

Print_ISBN

0-7803-5897-X

Type

conf

DOI

10.1109/VISUAL.1999.809925

Filename

809925