Accession Number : ADP006402

Title :   The Effects Upon Visual Performance of Varying Binocular Overlap,

Corporate Author : BRITISH AEROSPACE PLC BRISTOL (UNITED KINGDOM)

Personal Author(s) : Edgar, G. K. ; Carr, K. T. ; williams, M. ; Page, J. ; Clarke, A. L.

Report Date : DEC 1991

Pagination or Media Count : 15

Abstract : In a helmet mounted display there is a trade-off between the binocular overlap of the images presented to each eye and the total field of view. It is therefore desirable to see whether decreasing the binocular overlap (and thus making possible a larger total FOV) adversely affects performance. This paper reports the results of four experiments examining the effects of different binocular overlaps upon performance on a visual search task, and the factors that may explain any differences in the results obtained with different overlap conditions. The results indicated that performance was poorer in all non-100% overlap conditions, and suggested that this decrement in performance could be explained by the presence of depth boundaries introduced by a disparity between the images presented to each eye.

Descriptors :   *HELMET MOUNTED DISPLAYS, *VISUAL PERCEPTION, HELMETS, REDUCTION, APERTURES.

Subject Categories : Medicine and Medical Research

Distribution Statement : APPROVED FOR PUBLIC RELEASE