Differences in perceived depth for temporally correlated and uncorrelated dynamic random-dot stereograms

Citation

Gheorghiu E & Erkelens CJ (2005) Differences in perceived depth for temporally correlated and uncorrelated dynamic random-dot stereograms. Vision Research, 45 (12), pp. 1603-1614. https://doi.org/10.1016/j.visres.2004.12.005

Abstract
We investigated the influence of temporal frequency on binocular depth perception in dynamic random-dot stereograms (DRS). We used (i) temporally correlated DRS in which a single pair of images alternated between two disparity values, and (ii) temporally uncorrelated DRS consisting of the repeated alternation of two uncorrelated image pairs each having one of two disparity values. Our results show that disparity-defined depth is judged differently in temporally correlated and temporally uncorrelated DRS above a temporal frequency of about 3 Hz. The results and simulations indicate that (i) above about 20 Hz, the complete absence of stereomotion is caused by temporal integration of luminance, (ii) the difference in perceived depth in temporally correlated and temporally uncorrelated DRS for temporal frequencies between 20 and 3 Hz, is caused by temporal integration of disparity.

Keywords
Stereopsis; Stereomotion; Temporally correlated DRS; Temporal integration

Journal
Vision Research: Volume 45, Issue 12