13 August 1993 Influence of clutter on human target acquisition
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Abstract
To correctly model the target acquisition capability of an electro-optic system manned by a human, the basic process of how the human visual system interacts with the scene must be considered. The Center for Night Vision and Electro-Optics (CNVEO) model has analyzed the detection of targets both in the static situation and in the case of a person searching a field of regard. However, this model does not provide a quantitative measure of the clutter of a scene. In this paper, we propose two new metrics of clutter, derived from our understanding of the human visual system. The first is a metric based on the distinctness of the target in its surroundings, that can be used both locally for target contrast and globally for overall clutter. The second is a metric based on the calculation of likely fixation points of a human observer. We compare the results to an experiment performed at Hughes Corporation and described in our paper.
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Z. Avital, Z. Avital, Yosi Hadar, Yosi Hadar, G. Reiter, G. Reiter, Gil Tidhar, Gil Tidhar, Stanley R. Rotman, Stanley R. Rotman, Shlomit Grossman, Shlomit Grossman, Ada Rehavi, Ada Rehavi, } "Influence of clutter on human target acquisition", Proc. SPIE 1971, 8th Meeting on Optical Engineering in Israel: Optical Engineering and Remote Sensing, (13 August 1993); doi: 10.1117/12.151006; https://doi.org/10.1117/12.151006
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