Effect of luminance and contrast on processing large disparities*
- 1 December 1974
- journal article
- Published by Optica Publishing Group in Journal of the Optical Society of America
- Vol. 64 (12) , 1703-1705
- https://doi.org/10.1364/josa.64.001703
Abstract
Although reduced luminance impairs the discrimination of small disparity stimuli, large-disparity discrimination may improve. For example, crossed and uncrossed stimulus disparities of 4° that are not discriminated at photopic levels may be easily discriminated at mesopic levels near the color threshold. This improvement of stereo processing appears to be dependent upon an effective contrast reduction produced neurally, because a physical reduction of contrast without a change of background luminance may also improve large-disparity stereopsis.Keywords
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