Contour Extraction of Moving Objects Based on PCA/Snake Mixture Model
LI ChunMing1,2, LI YuShan1, ZHANG DaPu1, LIU Yang1
1.Institute of Electronic Computer Aided Design, Xidian University, Xi’an 710071 2.Department of Electronic and Information Engineering, School of Information Science and Engineering, Heibei University of Science and Technology, Shijiazhuang 050054
Abstract：Based on a Principal Component Analysis (PCA)/Snake mixture model, an algorithm for contour extraction of moving objects is proposed. Firstly, the moving objects in the image sequences are detected based on an extended PCA model and eigenforground. The extended PCA model can be used directly to process image sequences. Secondly, the precision contour of moving object is extracted based on a Snake model according to the detection result of the moving object. The experimental results show that the proposed algorithm extracts the moving object precisely with a high speed.
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2007, Vol. 20 
