Wing-Chung Ma

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vector distribution, a new four-step search (4SS) algorithm with center-biased checking point pattern for fast block motion estimation is proposed in this paper. Halfway-stop technique is employed in the new algorithm with searching steps of 2 to 4 and the total number of checking points is varied from 17 to 27. Simulation results show that the proposed 4SS(More)
Experimental results show that the block motion field of real world image sequence is usually gentle, smooth, and varies slowly, as a result in a center-biased global minimum motion vector distribution instead of an uniform distribution. Based on this characteristic of image sequence a new four-step search (4SS) algorithm with center-biased checking point(More)
Motion estimation technique is the most vital component of any video coding standard. Therefore, development of an efficient method for fast motion estimation is the basic requirement of the video encoder design. Block based motion estimation algorithms are used to reduce the memory requirements of any video file and also decrease computational complexity.(More)
Based on the real world image sequence’s characteristic of center-biased motion vector distribution, a new four-step search (4SS) algorithm with center-biased checking point pattern for fast block motion estimation is proposed in this paper. Halfway-stop technique is employed in the new algorithm with searching steps of 2 to 4 and the total number of(More)
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