Fast Quarter-Pixel Motion Search

Yung-Lyul LEE  Hyun JO  Ki-Hun HAN  

Publication
IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E87-A   No.3   pp.692-694
Publication Date: 2004/03/01
Online ISSN: 
DOI: 
Print ISSN: 0916-8508
Type of Manuscript: Special Section LETTER (Special Section on Applications and Implementations of Digital Signal Processing)
Category: Video/Image Coding
Keyword: 
motion estimation,  PSNR,  pixel,  quarter-pixel,  

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Summary: 
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.