Definition and detection of binocular disparity

Vision Research
J S Lappin, W D Craft

Abstract

Stereoacuity experiments tested definitions of binocularly disparate spatial positions by perturbing the binocular correspondence of the two half-images. Dichoptic translations perturbed zero-order retinal positions; expansions perturbed first-order horizontal separations; rotations perturbed first-order orientations; and anisotropic expansions deformed first-order two-dimensional (2D) structure. Each transformation perturbed relative positions in the two half-images by more than 100 arcsec, but stereoacuity thresholds remained about 10 arcsec. Binocular disparity involves second-order 2D differential structure of the monocular half-images, specifying local surface shape. Stereoacuity is much better than nonstereo acuity, suggesting that monocular spatial signals are binocularly correlated.

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Citations

May 26, 1998·Perception & Psychophysics·V J PerottiF Phillips
Sep 1, 2011·Attention, Perception & Psychophysics·Joseph S LappinFlip Phillips
May 31, 2016·Journal of Current Ophthalmology·Siamak Zarei-GhanavatiMojtaba Abrishami
May 12, 2001·Vision Research·J S LappinH Kojima
Sep 6, 2008·Vision Research·J Farley NormanCharles E Crabtree
Aug 28, 2014·Frontiers in Psychology·Joseph S Lappin
Mar 1, 2000·Perception·N Schoumans, J J Denier van der Gon
Jun 3, 2021·Proceedings of the National Academy of Sciences of the United States of America·Cherlyn J NgGeunyoung Yoon

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