Perception testing for development of computer models of ground vehicle visual discrimination performance

Gary Witus; R. Darin Ellis

doi:10.1117/12.392521

24 July 2000 Perception testing for development of computer models of ground vehicle visual discrimination performance

Gary Witus, R. Darin Ellis

Proceedings Volume 4029, Targets and Backgrounds VI: Characterization, Visualization, and the Detection Process; (2000) https://doi.org/10.1117/12.392521
Event: AeroSense 2000, 2000, Orlando, FL, United States

Abstract

This paper describes a series of large-scale perception experiments designed to collect human observer visual search and discrimination performance data for use in calibrating and validating computer models of visual acquisition of military ground vehicles. The first experiment provides data for development of models of color and luminescence adaptation and contrast sensitivity to extract information needed to discriminate simple 2-D shapes, as a function of size, adaptation, blur and contrast. The second experiment provides data for development of models of search and discrimination for simple 3-D shapes in cluttered backgrounds, as a function of size, clutter level, and facet contrast. The third experiment provides data for development of models of serach and discrimination of military ground vehicles in natural settings. These stimuli include vehicles at close and far ranges, with and without cue feature suppression, with and without camouflage, and under clear, hazy and dark conditions. Observer response test results show that the stimuli are uniformly distributed from very high to very low signatures. This paper also reports on insights for modeling visual discrimination.

Citation Download Citation

Gary Witus and R. Darin Ellis "Perception testing for development of computer models of ground vehicle visual discrimination performance", Proc. SPIE 4029, Targets and Backgrounds VI: Characterization, Visualization, and the Detection Process, (24 July 2000); https://doi.org/10.1117/12.392521

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