A Physiological Model for Motion-stereo Integration and a Unified
Explanation of the Pulfrich-like Phenomena
Ning Qian and Richard A. Andersen, Vision Research, 1997, 37:1683-1698.
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Abstract
Many psychophysical and physiological experiments indicate that
visual motion analysis and stereoscopic depth perception are processed
together in the brain. However, little computational effort has been
devoted to combining these two visual modalities into a common
framework based on physiological mechanisms. We present such an
integrated model in this paper. We have previously developed a
physiologically realistic model for binocular disparity computation
\cite{Qian94e}. Here we demonstrate that under some general and physiological
assumptions, our stereo vision model can be combined naturally with
motion energy models to achieve motion-stereo integration. The
integrated model may be used to explain a wide range of experimental
observations regarding motion-stereo interaction. As an example, we
show that the model can provide a unified account of the classical
Pulfrich effect \cite{Morgan75} and the generalized Pulfrich phenomena
to dynamic noise patterns
\cite{Tyler74,Falk80} and stroboscopic stimuli \cite{Burr79}.
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