DocumentCode :
2008812
Title :
Total least squares estimation of stereo optical flow
Author :
Tsai, Chun-Jen ; Galatsanos, Nikolas P. ; Katsaggelos, Aggelos K.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Northwestern Univ., Evanston, IL, USA
Volume :
2
fYear :
1998
fDate :
4-7 Oct 1998
Firstpage :
622
Abstract :
We propose a new method for disparity assisted stereo optical flow estimation. This method is based on the linearization of the round-about compatibility constraint, which converts a stereo optical flow estimation problem to a single channel optical flow estimation problem. An over-determined system of optical flow equations can then be constructed for estimating the flow fields. The total least squares, instead of the traditional least squares is used to solve the estimation problem. We also investigate the extension of the locally constant flow model across the time domain. The experiments presented demonstrate that the proposed technique performs very well
Keywords :
image sequences; least squares approximations; parameter estimation; stereo image processing; time-domain analysis; video signal processing; disparity assisted stereo optical flow estimation; experiments; flow fields estimation; locally constant flow model; optical flow equations; over-determined system; round-about compatibility constraint linearization; single channel optical flow estimation; time domain; total least squares estimation; video sequence; Brightness; Equations; Image motion analysis; Image sequences; Least squares approximation; Least squares methods; Optical noise; Parameter estimation; Uncertainty; Visual communication;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Image Processing, 1998. ICIP 98. Proceedings. 1998 International Conference on
Conference_Location :
Chicago, IL
Print_ISBN :
0-8186-8821-1
Type :
conf
DOI :
10.1109/ICIP.1998.723549
Filename :
723549
Link To Document :
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