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A frequency domain performance analysis of Horn and Schunck's optical flow algorithm for deformable motion

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2 Author(s)
Denney, T.S. ; Dept. of Electr. Eng., Auburn Univ., AL, USA ; Prince, J.L.

A frequency domain performance analysis of Horn and Schunck's (1981) optical flow (HSOF) algorithm for estimation of deformable motion is presented. Noise sources in the algorithm are modeled using the discrete Fourier transform of the brightness pattern. This noise model along with the estimation error covariance function derived in previous work is used to derive an expression for the expected performance of the optical flow estimate that is valid for an arbitrary discrete brightness pattern. Simulation results are presented that demonstrate the validity of our methods and show that HSOF is more accurate that the optical flow estimate of Anandan for certain low-frequency patterns

Published in:

Image Processing, IEEE Transactions on  (Volume:4 ,  Issue: 9 )

Date of Publication:

Sep 1995

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