A Divided-and-Conquer Algorithm Based on Guided Selection for Two-View Motion Segmentation

作者:Wang, Huijing*; Chen, Kai; Zhou, Yi; Zhang, Yan; Guan, Haibing
来源:International Conference on Information Technology for Manufacturing Systems, China, 2010-01-30 to 2010-01-31.
DOI:10.4028/www.scientific.net/AMM.20-23.452

摘要

Motion segmentation for dynamic scene is a fundamental problem in computer vision due to its well-known chicken-and-egg character. The key issue is to estimate both numbers and parameters of motions simultaneously. Different from global clustering method and random sampling scheme, in this paper, we propose a divided-and-conquer algorithm to solve the motion segmentation problem. A guided selection is used to choose the most creditable hypothetical motion as a candidate seed and then make it grow larger. Compared to previous works such as expectation maximization and factorization approaches, there is no need for any pre-knowledge of the number of motions. To global non-parametric clustering method, it is fast because each time we only do cluster process in a partitioned sub-set. Experiments have shown that the proposal method can give a satisfying result for motion segmentation.

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