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�������պ����ѧѧ�� 2001, Vol. 27 Issue (4) :373-376    DOI:
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A Fast Motion Estimation Algorithm Using Adaptive Search Technique
LI Bo, TU Ya-ming*
Beijing University of Aeronautics and Astronautics, Dept. of Computer Science and Engineering

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Abstract�� In the motion estimation of MPEG and H.263,full-search algorithm doeswell in matching accuracy, but involves in a very high computational complexity. Some fast search algorithms such as three-step search still need to be improved in both computational complexity and matching accuracy. The proposed new algorithm, ASA, takes good advantage of both the center-biased motion vector distribution characteristics of the real world video sequence and the correlation among the motions of adjacent blocks. It performs as accurate as full-search, but needs much less computation. Compared with existing algorithms, it is more efficient, more effective and more robust.
Keywords�� image processing   encoder   motion estimation   search algorithm   block matching   MPEG     
Received 2000-09-20;
Fund:

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�, Ϳ����.��������Ӧ�����Ŀ����˶������㷨[J]  �������պ����ѧѧ��, 2001,V27(4): 373-376
LI Bo, TU Ya-ming.A Fast Motion Estimation Algorithm Using Adaptive Search Technique[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2001,V27(4): 373-376
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