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Accurate computation of optical flow by using layered motionrepresentations

By Steve Hsu, P. Anandan and Shmuel Peleg


This paper presents a framework combining two prevailing approaches to motion analysis: optical flow which describes motion at each point, and methods that define global motions for [arger regions. Image motion is represented by layers, image regions whose coherent motion can be approximated by some parametric motion model. The motion at every point is obtained by the parametric motion estimate of the entire layer, corrected by a residual flow field which captures the diflerence between the real image motion and the layer's motion model. The new approach is able to construct accurate flow fields in the presence of multiple motions, motion boundaries, and transparent motions.

Year: 1992
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