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Proceedings Paper

Scene simulation for camouflage assessment
Author(s): Alexander W. Houlbrook; Marilyn A. Gilmore; Ian R. Moorhead; David R. Filbee; Colin A. Stroud; G. Hutchings; Albert Kirk
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Paper Abstract

Synthetic imagery is now used by a variety of military applications. In our application, we are using synthetic imagery to study the effectiveness of different camouflage techniques. The requirement is to be able to display high fidelity imagery of target vehicles against different background in different wavebands. For a complete assessment of camouflage the system should be able to account for the effect of target motion, interactions between the target and its environment and effects such as hot sources, e.g. engines. CAMEO-SIM has been developed to meet these requirements. It can generate physically accurate radiance images in any EO waveband between 0.4 and 14 microns. Sensor effects are added as post-process. The system is capable of modelling highly cluttered terrain scenes and delivers radiance values at each pixel. Recent extensions to CAMEO-SIM include true-color visible band imagery and simple multispectral image display for simulation of hyperspectral imagery. Visible band images are displayed on a calibrated monitor for assessment experiments using observers. Radiometric data are used by other models. A range of verification tests has shown that the software computes the correct values for analytically tractable scenarios. Validation tests using simple scenes have also been undertaken. More complex validation tests using observer trials are planned. This paper will describe the current version of CAMEO-SIM and how images it produces are used for camouflage assessment. The verification and validation tests undertaken will be discussed. In addition, example images will be used to demonstrate the significance of different effects such as spectral rendering and shadows. Planned developments of CAMEO- SIM will also be outlined.

Paper Details

Date Published: 24 July 2000
PDF: 9 pages
Proc. SPIE 4029, Targets and Backgrounds VI: Characterization, Visualization, and the Detection Process, (24 July 2000); doi: 10.1117/12.392531
Show Author Affiliations
Alexander W. Houlbrook, Defence Evaluation and Research Agency Farnborough (United Kingdom)
Marilyn A. Gilmore, Defence Evaluation and Research Agency Farnborough (United Kingdom)
Ian R. Moorhead, Defence Evaluation and Research Agency Farnborough (United Kingdom)
David R. Filbee, Hunting Engineering Ltd. (United Kingdom)
Colin A. Stroud, Hunting Engineering Ltd. (United Kingdom)
G. Hutchings, Hunting Engineering Ltd. (United Kingdom)
Albert Kirk, Hunting Engineering Ltd. (United Kingdom)

Published in SPIE Proceedings Vol. 4029:
Targets and Backgrounds VI: Characterization, Visualization, and the Detection Process
Wendell R. Watkins; Dieter Clement; William R. Reynolds, Editor(s)

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