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Adaptive quarter-pel motion estimation and motion vector coding algorithm for the H.264/AVC standard

Authors
Jung, Seung-WonPark, Chun-SuHa, Le ThanhKo, Sung-Jea
Issue Date
11월-2009
Publisher
SPIE-SOC PHOTOPTICAL INSTRUMENTATION ENGINEERS
Keywords
motion estimation; motion vector coding; linear classification
Citation
OPTICAL ENGINEERING, v.48, no.11
Indexed
SCIE
SCOPUS
Journal Title
OPTICAL ENGINEERING
Volume
48
Number
11
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/119076
DOI
10.1117/1.3257262
ISSN
0091-3286
Abstract
We present an adaptive quarter-pel (Qpel) motion estimation (ME) method for H.264/AVC. Instead of applying Qpel ME to all macroblocks (MBs), the proposed method selectively performs Qpel ME in an MB level. In order to reduce the bit rate, we also propose a motion vector (MV) encoding technique that adaptively selects a different variable length coding (VLC) table according to the accuracy of the MV. Experimental results show that the proposed method can achieve about 3% average bit rate reduction. (C) 2009 Society of Photo-Optical Instrumentation Engineers. [DOI: 10.1117/1.3257262]
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공과대학 (전기전자공학부)
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