Observer Performance with TV Imagery: Gray Scale and Resolution
MCDONNELL AIRCRAFT CO ST LOUIS MO RECONNAISSANCE LAB
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The study was performed as part of a McDonnell Aircraft Company funded research program to determine engineering design criteria for reconnaissance and air TV displays. The purpose of this experiment was to determine observer capability for identification of targets imaged on a simulated cockpit TV display. Observer performance was determined as a function of two display characteristics, shades of gray at the display face and TV lines over target. Six trained observers were presented TV images of 4 fighter aircraft at 3, 5, and 7 shades of gray, and 4, 8, 12, 16, and 20 TV lines over target. Fighter aircraft were presented one at a time against a uniform background. Performance was measured in terms of number correct identifications and speed of response.
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