Accession Number : ADA254236


Title :   Visualization of Battlefield Obscurants


Descriptive Note : Scientific paper


Corporate Author : ARMY TOPOGRAPHIC ENGINEERING CENTER FORT BELVOIR VA


Personal Author(s) : Hardaway, G M


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a254236.pdf


Report Date : Oct 1991


Pagination or Media Count : 11


Abstract : The EOSAEL Combined Obscuration Model for Battlefield Contaminants (COMBIC) module models the transmittance of seven electro-optical wavelengths through 30 obscurant sources types. Designed as a war gaming tool, COMBIC computes the transmissivity along selected lines of sight, but does not allow realistic visualization of the obscurants. Because of their amorphous nature, obscurant clouds are particularly difficult to model with traditional computer graphics techniques, which employ flat polygons to model clearly defined features. Grumman Data Systems has developed non-traditional computer graphics techniques using fractal ellipsoids to model clouds realistically but economically. This paper describes work initiated by the U.S. Army Topographic Engineering Center to integrate Grumman graphics technology with COMBIC to provide realistic visualization of battlefield obscurants. COMBIC Phase I subroutines are used to generate an obscurant cloud envelope. This envelope is then filled with fractal ellipsoids which can be manipulated dynamically to generate animated sequences of the obscurant's development. visualization, obscurants, amorphous, fractal ellipsoids, smoke.


Descriptors :   *BATTLEFIELDS , *OBSCURATION , MATHEMATICAL MODELS , FRACTALS , CLOUDS , SEQUENCES , TRANSMITTANCE , ELLIPSOIDS , SMOKE , COMPUTER GRAPHICS , CONTAMINANTS , COMPUTER APPLICATIONS , VISION , SUBROUTINES , POLYGONS , TRANSMISSIVITY


Subject Categories : Military Operations, Strategy and Tactics
      Optical Countermeasures


Distribution Statement : APPROVED FOR PUBLIC RELEASE