Accession Number : AD0690327

Title :   THE EXTRACTION OF INFORMATION FROM A NOISY BACKGROUND BY THE USE OF STEREOPSIS,

Corporate Author : TORONTO UNIV (ONTARIO) DEPT OF OPHTHALMOLOGY

Personal Author(s) : Middleton,D. G. ; Parker,J. A.

Report Date : 1969

Pagination or Media Count : 8

Abstract : It was possible to extract information using stereopsis from patterns where the complexity of the noisy background prevented discrimination on 'monocular' viewing. The effects of target displacement, colour and subject response were analyzed using quantitative methods developed by Ogle. The results, in general, were similar to those obtained by him, where simple targets were used. Stereoscopic acuities below 5 seconds of arc were frequently obtained. The acuity was poorer for coloured objects. Some subjects showed a tendency to call red dots nearer and blue dots farther more often than was expected from the studies using black on white patterns. There was considerable intersubject variation. (Author)

Descriptors :   (*STEREOSCOPIC DISPLAY SYSTEMS, *SPACE PERCEPTION), STEREOSCOPIC PROJECTORS, BACKGROUND, NOISE, VISUAL ACUITY, PERCEPTION(PSYCHOLOGY), TARGET RECOGNITION, THRESHOLDS(PHYSIOLOGY), LEAST SQUARES METHOD, STATISTICAL ANALYSIS, CANADA

Subject Categories : Psychology

Distribution Statement : APPROVED FOR PUBLIC RELEASE