title: Color difference threshold of chromostereopsis induced by flat display emission.
abstract: The study of chromostereopsis has gained attention in the backdrop of the use of computer displays in daily life. In this context, we analyze the illusory depth sense using planar color images presented on a computer screen. We determine the color difference threshold required to induce an illusory sense of depth psychometrically using a constant stimuli paradigm. Isoluminant stimuli are presented on a computer screen, which stimuli are aligned along the blue-red line in the computer display CIE xyY color space. Stereo disparity is generated by increasing the color difference between the central and surrounding areas of the stimuli with both areas consisting of random dots on a black background. The observed altering of illusory depth sense, thus also stereo disparity is validated using the "center-of-gravity" model. The induced illusory sense of the depth effect undergoes color reversal upon varying the binocular lateral eye pupil covering conditions (lateral or medial). Analysis of the retinal image point spread function for the display red and blue pixel radiation validates the altering of chromostereopsis retinal disparity achieved by increasing the color difference, and also the chromostereopsis color reversal caused by varying the eye pupil covering conditions.
authors.affiliation: Institute of Solid State Physics, University of Latvia Riga, Latvia ; Department of Optometry and Vision Science, University of Latvia Riga, Latvia.
authors.forename: Maris
authors.initials: M
authors.lastname: Ozolinsh
authors.affiliation: Department of Optometry and Vision Science, University of Latvia Riga, Latvia.
authors.forename: Kristine
authors.initials: K
authors.lastname: Muizniece
keywords: chromostereopsis; eye chromatic aberrations; fusion of retinal images; perception threshold; stereo disparity