Encoding and estimation of first- and second-order binocular disparity in natural images
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
ISSN
0042-6989Type
Journal article
Description
Research supported by BBSRC Grant Nos. BB/G004803/1 (RG) and BB/K018973/1 (PH/DH).Collections
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