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Bayesian modelling of cue interaction: bi-stability in stereoscopic slant perception

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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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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), pp. 1398-1406.

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Published date: 2003
Keywords: vision and color, binocular vision and stereopsis, modeling of vision, psychophysics, vision


Local EPrints ID: 18641
ISSN: 0740-3232
PURE UUID: 65dd0ecc-42df-4293-9138-6c09719a8df8
ORCID for Wendy J. Adams: ORCID iD

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Date deposited: 09 Jan 2006
Last modified: 17 Jul 2017 16:35

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Author: Raymond van Ee
Author: Wendy J. Adams ORCID iD
Author: Pascal Mamassian

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