Ching-Fang Chang, N. Izumi, N. Yanagihara, C.C. Lee
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New motion estimation algorithm for DV to MPEG1 compression domain conversion
Motion estimation is one of the most time-consuming processes in an MPEG1 video encoder. In this paper, a novel hierarchical motion estimation algorithm for DV to MPEG1 conversion is presented. The algorithm performs a novel sparse search, and the block matching utilizes integral projection information from the compression domain. The algorithm has a much smaller computation complexity than those motion estimation algorithms currently available in the industry while maintaining comparable PSNR (peak signal-to-noise ratio).
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