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28 December 1998 Fast motion estimation algorithm for MPEG-2 video encoding
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Proceedings Volume 3653, Visual Communications and Image Processing '99; (1998) https://doi.org/10.1117/12.334659
Event: Electronic Imaging '99, 1999, San Jose, CA, United States
Abstract
In this paper a fast motion estimation algorithm is proposed for the MPEG-2 video encoding. This algorithm is based on a hybrid use of the block matching technique and gradient technique. For estimation a motion vector, the block matching technique is used for selecting the initial vector from the spatial neighboring macroblocks and the temporally co-located macroblock, then the gradient technique is applied to obtain the final vector by a pixel-recursive refinement of the initial vector. In addition, an adaptive scheme to determine the search range is developed to enable the low latency motion estimation when the gradient technique is involved. The simulation results reveal that the proposed algorithm shares a high speed of while preserves the coding efficiency compared with the full search block matching technique.
© (1998) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Minhua Zhou "Fast motion estimation algorithm for MPEG-2 video encoding", Proc. SPIE 3653, Visual Communications and Image Processing '99, (28 December 1998); https://doi.org/10.1117/12.334659
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