Average search time for ground-vehicle target detectability

Richard C. Goetz; Grant R. Gerhart; Roy M. Matchko

doi:10.1117/12.327152

7 July 1998 Average search time for ground-vehicle target detectability

Richard C. Goetz, Grant R. Gerhart, Roy M. Matchko

Proceedings Volume 3375, Targets and Backgrounds: Characterization and Representation IV; (1998) https://doi.org/10.1117/12.327152
Event: Aerospace/Defense Sensing and Controls, 1998, Orlando, FL, United States

Abstract

This paper summarizes N.P. Travnikova's model as a method to compare average search times by military observers using powered optics such as binoculars. Both discrete and continuous scanning methods are considered for target searches. This empirical model quantifies which type of vision system is best suited for the most efficient target detection for a given field of view. An analysis is also provided of the relative importance of target diameter, background luminance, and contrast upon overall detectability with the subsequent results compared to known field test data. The detectability of specific military ground vehicles over a variety of search and target acquisition tasks with several off-the-shelf binoculars is examined. Some examples on various types of search studies, such as compare looking at the target, both line retrace time effects, etc., for a low contrast target are also considered. This paper consists of two sections. The first explains the derivation of methodology and limits of its applicability. The second section offers a parametric analysis that compares the relative importance of target diameter, background luminance, and contrast upon overall target detectability with the subsequent results compared to field test data.

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Richard C. Goetz, Grant R. Gerhart, and Roy M. Matchko "Average search time for ground-vehicle target detectability", Proc. SPIE 3375, Targets and Backgrounds: Characterization and Representation IV, (7 July 1998); https://doi.org/10.1117/12.327152

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KEYWORDS

Target detection

Eye

Visual process modeling

Eye models

Optical components

Target acquisition

Instrument modeling

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