Accession Number : AD0458832


Title :   THE EFFECT OF DIRECTION AND VELOCITY OF RELATIVE MOTION UPON DYNAMIC VISUAL ACUITY.


Descriptive Note : Final rept., 1 Feb 64-31 Jan 65,


Corporate Author : AUTONETICS ANAHEIM CA


Personal Author(s) : Snyder, Harry L ; Greening, Charles P


Report Date : 31 Jan 1965


Pagination or Media Count : 60


Abstract : In this study, human dynamic visual acuity was related to relative stimulus velocity when the stimulus motion contained a vector of motion toward the observer. The specific parameters investigated, and their effects upon visual acuity were: (1) Direction of stimulus motion across the retina; (2) Angular velocity of the stimulus perpendicular to the line of sight; (3) Rate of approach of the stimulus directly toward the observer; (4) Exposure time of the stimulus; and (5) Stimulus pattern. The results were discussed in terms of their application to object recognition from automobiles and low-altitude, high-speed aircraft. (Author)


Descriptors :   *VISUAL PERCEPTION , *VISUAL ACUITY , TARGET RECOGNITION , MOTION , PERFORMANCE(HUMAN) , MATHEMATICAL ANALYSIS , DISPLAY SYSTEMS , RETINA , PHYSIOLOGY , CORRELATION TECHNIQUES , DRIVERS(PERSONNEL) , VELOCITY , AIRSPEED


Distribution Statement : APPROVED FOR PUBLIC RELEASE