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�������պ����ѧѧ�� 2007, Vol. 33 Issue (05) :557-560    DOI:
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Fast stereo edge-matching algorithm based on corner-guidance
Li Haichao, Zhang Guangjun*
School of Instrument Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

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Abstract�� A new fast and robust edge-matching algorithm guided by matched corners was presented. In the whole matching process, the corner constraint and the edge constraint were proposed to guarantee the matching speed. First, the matched corners were used to guide the edge matching. How to use the previous matched corners to guide the edge matching was shown. Furthermore, region-growing idea was introduced to get matched edges quickly. Second, the edge constraint was proposed to limit the search area in several pixels, then epipolar constraint was used to achieved matched points, if necessary the cross correlation was also utilized. Numerous experimental results with various images clearly demonstrate that the benefit of integrating matched corners into the edge matching procedures is obvious, and with the two new constraints this method seriously improves the speed and the correct matching ratio is higher than 97%.
Keywords�� stereo vision   stereo matching   fast edge-matching   corner constraint   edge constraint     
Received 2006-09-15;
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About author: ���(1979-),��,ɽ��������,��ʿ��,lihaichao2000@163.com.
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���, �Ź��.һ�ֻ��ڽǵ������Ŀ��������Եƥ�䷽��[J]  �������պ����ѧѧ��, 2007,V33(05): 557-560
Li Haichao, Zhang Guangjun.Fast stereo edge-matching algorithm based on corner-guidance[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2007,V33(05): 557-560
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