Discrete-Time Rigidity-Constrained Optical Flow
Published in:
7th Int'l Conf Computer Analysis of Images and Patterns,
Kiel, Germany. September 10-12, 1997.
An algorithm for optical flow estimation is presented, for the case of
discrete-time motion of an uncalibrated camera through a rigid world.
Unlike traditional optical flow approaches that impose smoothness
constraints on the flow field, this algorithm assumes smoothness on
the inverse depth map. The computation is based on differential
measurements and estimates are computed within a multi-scale
decomposition. Thus, the method is able to operate properly with
large displacements (i.e., large velocities or low frame rates).
Results are shown for a synthetic and a real sequence.
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