VISUAL DETECTION PROBABILITIES FOR SEARCH AND RESCUE

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Authors
  1. Stager, P.
  2. Hameluck, D.
Corporate Authors
York Univ, Toronto ONT (CAN);Defence and Civil Inst of Environmental Medicine, Downsview ONT (CAN)
Abstract
Resource allocation in Search and Rescue (SAR) visual search operations to locate missing or downed aircraft depends on the statistical probabilities of detection as well as location. The present research was undertaken to develop probability of detection (POD) values that would relate POD to the visual search parameters of topography, vegetation, and seasonal variations. Experienced SAR personnel sorted aerial photographs and multi-dimensional scaling and cluster analysis was applied to the sorting data to yield the stimulus dimensions and characteristics which apparently affect visual search. The viewing of slides which represented these characteristics produced POD values that were comparable with limited field trial data. The comparison indicated that static visual displays can provide reasonable estimates of detection in dynamic visual search.
Keywords
Aerial photographs
Date of publication
15 Jan 1986
Number of Pages
73
DSTKIM No
86-02372
CANDIS No
97085
Format(s):
Hardcopy;Originator's fiche received by DSIS;Document Image stored on Optical Disk

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