Computing Stereo Disparity and Motion with Known Binocular Cell
Ning Qian, Neural Computation, 1994, 6:390-404.
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full paper (compressed PostScript file, 0.1MB).
Many models for stereo disparity computation have been proposed, but
few can be said to be truly biological. There is also a rich
literature devoted to physiological studies of stereopsis. Cells sensitive
to binocular disparity have been found in the visual cortex, but it
is not clear whether these cells could be used to compute disparity
maps from stereograms. Here we propose a model for biological stereo
vision based on known receptive field profiles of binocular cells in
the visual cortex and provide the first demonstration that these
cells could effectively solve random dot stereograms.
Our model also allows a natural integration of stereo vision and
motion detection. This may help explain the existence of units tuned
to both disparity and motion in the visual cortex.
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