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Appears in Collections:Psychology Journal Articles
Peer Review Status: Refereed
Title: Encoding and estimation of first- and second-order binocular disparity in natural images
Authors: Hibbard, Paul
Goutcher, Ross
Hunter, David
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Keywords: Binocular disparity
Depth perception
Second-order stereopsis
Natural images
Binocular energy model
Issue Date: Mar-2016
Publisher: Elsevier
Citation: Hibbard P, Goutcher R & Hunter D (2016) Encoding and estimation of first- and second-order binocular disparity in natural images, Vision Research, 120, pp. 108-120.
Abstract: The first stage of processing of binocular information in the visual cortex is performed by mechanisms that are bandpass-tuned for spatial frequency and orientation. Psychophysical and physiological evidence have also demonstrated the existence of second-order mechanisms in binocular processing, which can encode disparities that are not directly accessible to first-order mechanisms. We compared the responses of first- and second-order binocular filters to natural images. We found that the responses of the second- order mechanisms are to some extent correlated with the responses of the first-order mechanisms, and that they can contribute to increasing both the accuracy, and depth range, of binocular stereopsis.
Type: Journal Article
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Rights: Copyright 2016 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (
Affiliation: University of Essex
University of St Andrews

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