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Study of the Fast Block Matching Algorithms for Motion Estimation

Author: LiuHaiFeng
Tutor: FengZongZhe
School: Xi'an University of Electronic Science and Technology
Course: Signal and Information Processing
Keywords: Video Coding Block matching Motion Estimation Square - Diamond Search Algorithm
CLC: TN919.8
Type: Master's thesis
Year: 2002
Downloads: 177
Quote: 10
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Abstract


Motion estimation in video image compression occupies very important position, how to make motion estimation algorithm of the search process is more robust, rapid, efficient, and become a research hotspot at present. This paper mainly studies the three-step search method (TSS), four footwork (FSS), two-dimension logarithmic method (CS) and diamond (TDL), the crossover method (DS) and so on the classical motion estimation based on block matching algorithm; Aiming at the problems which, in the inspired by human visual system, from the perspective of bionics design, a new comprehensive template (SDP), it embodies the thought of coarse location and accurate orientation parallel processing, based on this, advances a new search algorithm for block matching (SDS), square, diamond search algorithm; Experiments show: this algorithm the search speed than the FS, TSS, FSS, TDL, CS and DS are fast, and in accordance with the image of motion vector recovery out in PSNR and subjective visual effect, have been and FS algorithm is better than others. Finally, based on some latest tracking the motion estimation algorithm, has been clear about the next research direction.

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