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Encoding and estimation of first- and second-order binocular disparity in natural images

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Hibbard_BinocularDisparity_VisionResearch_CC.pdf (1.059Mb)
Date
03/2016
Author
Hibbard, Paul B.
Goutcher, Ross
Hunter, David W.
Funder
BBSRC
Grant ID
DGB1500
Keywords
Binocular disparity
Depth perception
Second-order stereopsis
Natural images
Binocular energy model
BF Psychology
NDAS
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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.
Citation
Hibbard , P B , Goutcher , R & Hunter , D W 2016 , ' Encoding and estimation of first- and second-order binocular disparity in natural images ' , Vision Research , vol. 120 , pp. 108 - 120 . https://doi.org/10.1016/j.visres.2015.10.016
Publication
Vision Research
Status
Peer reviewed
DOI
https://doi.org/10.1016/j.visres.2015.10.016
ISSN
0042-6989
Type
Journal article
Rights
© 2016 The Authors. This is an open access article under the CC BY license, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Description
Research supported by BBSRC Grant Nos. BB/G004803/1 (RG) and BB/K018973/1 (PH/DH).
Collections
  • University of St Andrews Research
URI
http://hdl.handle.net/10023/8368

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