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| Research article summary (published 29 Jun 2003): |
Bayesian modeling of cue interaction: bistability in stereoscopic slant perception.
Full Abstract
Our two eyes receive different views of a visual scene, and the resulting binocular disparities enable us to reconstruct its three-dimensional layout. However, the visual environment is also rich in monocular depth cues. We examined the resulting percept when observers view a scene in which there are large conflicts between the surface slant signaled by binocular disparities and the slant signaled by monocular perspective. For a range of disparity-perspective cue conflicts, many observers experience bistability:
They are able to perceive two distinct slants and to flip between the two percepts in a controlled way. We present a Bayesian model that describes the quantitative aspects of perceived slant on the basis of the likelihoods of both perspective and disparity slant information combined with prior assumptions about the shape and orientation of objects in the scene. Our Bayesian approach can be regarded as an overarching framework that allows researchers to study all cue integration aspects-including perceptual decisions--in a unified manner.
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Author information
Author/s: van Ee, Raymond (R); Adams, Wendy J (WJ); Mamassian, Pascal (P);
Affiliation: Helmholtz Institute, Utrecht University, PrincetonPlein 5, 3584CC Utrecht, The Netherlands. r.vanee@phys.uu.nl
Journal and publication information
Publication Type: Journal Article; Research Support, Non-U.S. Gov't
Journal: Journal of the Optical Society of America. A, Optics, image science, and vision (J Opt Soc Am A Opt Image Sci Vis), published in United States. (Language: eng)
Reference: 2003-Jul; vol 20 (issue 7) : pp 1398-406
Dates: Created 2003/07/18; Completed 2003/09/03; Revised 2006/11/15;
PMID: 12868644, status: MEDLINE (last retrieval date: 11/6/2008)
Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.
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