Stereoscopic depth perception of isoluminant color random—dot stereograms

Abstract

AbstractIt has been reported that there is no stereoscopic depth perception under isoluminant color random‐dot stereograms (RDS), and that color information does not contribute to human depth perception. This paper describes the results of experiments on stereoscopic depth perception of isoluminant color RDS, obtained by using the prototype flickerless field‐sequential stereoscopic television system developed by the present authors. The results of the experiments show that stereoscopic depth perception clearly does exist even in isoluminant color RDS. It was also found that the binocular fusion area on color RDS is about two‐thirds that on black/white stimuli, and that the temporal‐frequency limits of binocular disparity for the isoluminant color RDS is about 3 Hz, while that for black/white stimuli are 4 to 5 Hz. These results suggest that not only does the luminance channel contribute to human depth perception, but also the chromatic channels.