Bayesian modelling of cue interaction: bi-stability in stereoscopic slant perception
Bayesian modelling of cue interaction: bi-stability in stereoscopic slant perception
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.
vision and color, binocular vision and stereopsis, modeling of vision, psychophysics, vision
1398-1406
van Ee, Raymond
17c90173-1c9f-40bf-aa29-ef1584bc0c9e
Adams, Wendy J.
25685aaa-fc54-4d25-8d65-f35f4c5ab688
Mamassian, Pascal
c8cd94cf-3645-4f60-826c-0d1ab349bb00
2003
van Ee, Raymond
17c90173-1c9f-40bf-aa29-ef1584bc0c9e
Adams, Wendy J.
25685aaa-fc54-4d25-8d65-f35f4c5ab688
Mamassian, Pascal
c8cd94cf-3645-4f60-826c-0d1ab349bb00
van Ee, Raymond, Adams, Wendy J. and Mamassian, Pascal
(2003)
Bayesian modelling of cue interaction: bi-stability in stereoscopic slant perception.
Journal of the Optical Society of America A. JOSA A: Optics, Image Science, and Vision, 20 (7), .
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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Published date: 2003
Keywords:
vision and color, binocular vision and stereopsis, modeling of vision, psychophysics, vision
Identifiers
Local EPrints ID: 18641
URI: http://eprints.soton.ac.uk/id/eprint/18641
ISSN: 0740-3232
PURE UUID: 65dd0ecc-42df-4293-9138-6c09719a8df8
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Date deposited: 09 Jan 2006
Last modified: 12 Dec 2021 03:27
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Contributors
Author:
Raymond van Ee
Author:
Pascal Mamassian
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