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Volume 28 Issue 9
Sep.  2010
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Liu Yang, Li Yu-shan, Zhang Da-pu. Contour Extraction of Moving Objects in Color Image Sequences[J]. Journal of Electronics & Information Technology, 2006, 28(9): 1550-1554.
Citation: Liu Yang, Li Yu-shan, Zhang Da-pu. Contour Extraction of Moving Objects in Color Image Sequences[J]. Journal of Electronics & Information Technology, 2006, 28(9): 1550-1554.

Contour Extraction of Moving Objects in Color Image Sequences

  • Received Date: 2004-12-27
  • Rev Recd Date: 2005-11-14
  • Publish Date: 2006-09-19
  • A new algorithm to extract accurate contours of multiple moving objects is proposed in this paper. The main contributions of this paper include two parts: firstly, exponential filter is used to calculate the gradient magnitude of color image and the localization accuracy of local maximum of gradient in color image is increased, the gradient magnitude and the motion edges are used subsequently in contour iteration to prevent the contour from shrinking successfully; secondly, the directions of contour are used to prevent the active contour from expanding effectively. As a result, the real compact contours would be extracted automatically by using this algorithm. The experiments show the high efficiency of this algorithm for contours extraction of moving objects from color image sequence with complex background.
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  • Kass M, Witkin A, Terzopoulos D. Snake: Active contour models[J].International Journal of Computer Vision.1988, 1(4):321-331[2]Rhee P K, La C W. Boundary extraction of moving objects from image sequence. Proc. of the IEEE Region 10 Conference TENCON99, Cheju-Korea, 1999, 1(15-17): 621-624.[3]Kim Munchurl, Choi Jae Gark, Kim Daehee, Lee Hyung, Lee Myoung Ho, Ahn Chieteuk, Ho Yo-Sung. A VOP generation tool: Automatic segmentation of moving objects in image sequences based on spatio-temporal information[J].IEEE Trans.on Circuit and System for Video Technology.1999, 9( 8):1216-1226[4]Cucchiara R, Grana C, Piccardi M, Prati A. Detecting moving objects, ghosts, and shadows in video streams. IEEE Trans. on Pattern Analysis and Machine Intelligence, 2003, 25(10):[5]37-1342.[6]Williams D J, Shah M. A fast algorithm for active contours and curvature estimation. CVGIP: Image understanding, 1991, 55(1): 14-26.[7]Amini A, Whemouth T, Jain R. Using dynamic programming for solving variational problems in vision[J].IEEE Trans. on Pattern Analysis and Machine Intelligence.1990, 12(9):855-867[8]李玉山, 杨莉, 刘洋, 张大朴. 多个运动物体的外轮廓自动提取.智能视觉监测研究进展,北京:科学出版社,2003: 87-91.[9]Shen Jun.[J].Castan S. An optimal linear operator for edge detection. Proc, CVPR86, Miami.1986,:-
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