Accession Number : AD0754928

Title :   Very Low Altitude Detection of Small Stationary Targets at Very Slow Speeds: a Simulation Study Using Strip Photography.

Descriptive Note : Final rept.,

Corporate Author : AEROSPACE MEDICAL RESEARCH LAB WRIGHT-PATTERSON AFB OHIO

Personal Author(s) : Self,Herschel C.

Report Date : AUG 1972

Pagination or Media Count : 40

Abstract : The target-seeking behavior of observers was examined at four different image motion rates using strip photography film taken at a 497-foot altitude. Targets imaged at a scale of 1:274 on a 14 by 14-inch display screen showing a 320 by 320-foot ground area were garbage cans and manhole covers in a residential suburb. Film moved through the projector at 3, 6, 9, or 15 inches/minute representing conditions of either rapid (flash) reporting or screening, or else aerial search for small targets with a 2.2X stabilized periscope at very slow helicopter speeds. Thirty-eight subjects were dividied into four groups. Each group was tested at a different speed: 2.1, 4.2, 6.3, and 10.5 knots respectively. Conclusions are drawn about rapid film screening and about periscopic search for small targets at very slow speeds. (Author)

Descriptors :   (*AERIAL RECONNAISSANCE, TARGET RECOGNITION), (*AERIAL PHOTOGRAPHS, PHOTOINTERPRETATION), (*TARGET RECOGNITION, PERFORMANCE(HUMAN)), AERIAL PHOTOGRAPHY, LOW ALTITUDE, VISUAL PERCEPTION, TEST EQUIPMENT, TEST METHODS, INSTRUCTION MANUALS

Subject Categories : Psychology
      Cartography and Aerial Photography

Distribution Statement : APPROVED FOR PUBLIC RELEASE