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Fast Quarter-Pixel Motion Search
Yung-Lyul LEE Hyun JO Ki-Hun HAN
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences
Publication Date: 2004/03/01
Print ISSN: 0916-8508
Type of Manuscript: Special Section LETTER (Special Section on Applications and Implementations of Digital Signal Processing)
Category: Video/Image Coding
motion estimation, PSNR, pixel, quarter-pixel,
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Two fast quarter-pixel motion estimation algorithms using the integer motion vector (MV) already obtained by any fast motion estimation algorithm are proposed, which perform MV search only in half-pixel and quarter-pixel unit. The proposed algorithms search MV about 4-9 times as fast as the full search in quarter-pixel unit, while the PSNR is slightly degraded.