TY - GEN
T1 - Parallel motion algorithm consistent with psychophysics and physiology.
AU - Buelthoff, Heinrich H.
AU - Little, James J.
AU - Poggio, Tomaso
PY - 1989
Y1 - 1989
N2 - The authors describe a simple, parallel algorithm that successfully computes an optical flow from sequences of real images, is consistent with human psychophysics, and suggests a plausible physiological model. Regularizing optical flow computation leads to a formulation which minimizes matching error and, at the same time, maximizes smoothness of the optical flow. The authors develop an approximation to the full regularization computation in which corresponding points are found by comparing local patches of images. Selection among competing matches is performed using a winner-take-all scheme. The algorithm is independent of the types of features used for matching. Experiments with natural images show that the scheme is effective and robust against noise. The algorithm shows several of the same 'illusions' that humans perceive. A natural physiological implementation of the model is consistent with data from cortical areas V1 and MT.
AB - The authors describe a simple, parallel algorithm that successfully computes an optical flow from sequences of real images, is consistent with human psychophysics, and suggests a plausible physiological model. Regularizing optical flow computation leads to a formulation which minimizes matching error and, at the same time, maximizes smoothness of the optical flow. The authors develop an approximation to the full regularization computation in which corresponding points are found by comparing local patches of images. Selection among competing matches is performed using a winner-take-all scheme. The algorithm is independent of the types of features used for matching. Experiments with natural images show that the scheme is effective and robust against noise. The algorithm shows several of the same 'illusions' that humans perceive. A natural physiological implementation of the model is consistent with data from cortical areas V1 and MT.
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M3 - Conference contribution
AN - SCOPUS:0024861493
SN - 0818619031
T3 - Proc Workshop Visual Motion
SP - 165
EP - 172
BT - Proc Workshop Visual Motion
A2 - Anon, null
T2 - Proceedings: Workshop on Visual Motion
Y2 - 28 March 1989 through 31 March 1989
ER -