DocumentCode :
2975921
Title :
A dynamic search range algorithm for variable block size motion estimation in H.264/AVC
Author :
Chen, Zhenxing ; Song, Yang ; Ikenaga, Takeshi ; Goto, Satoshi
Author_Institution :
Waseda Univ., Fukuoka
fYear :
2007
fDate :
10-13 Dec. 2007
Firstpage :
1
Lastpage :
4
Abstract :
Motion vector prediction (MVP) candidates are frequently and widely used to predict the start position for motion estimation (ME). They are rarely utilized for other purposes such as calculating dynamic search range (DSR). This paper proposes a novel DSR decision method for variable block-size motion estimation (VBSME) in H.264/AVC by utilizing the information included by two MVP candidates. Experimental result shows that the proposed method can reduce the integer motion estimation (IME) time to less than 10 % of that variable block-size full search (VBS -FS) costs. Even compared with the recently proposed DSR method (Yu and He, 2002), the proposed method can also achieve an up-to- 50 % reduction of computation. Moreover, from the viewpoint of fast ME algorithms, it is also experimentally proved that the proposed method can be combined with any popular fast ME algorithm, such as UMHexagonS (Chen et al., 2006), to further reduce its computation.
Keywords :
motion estimation; search problems; video coding; DSR decision method; H.264 AVC; dynamic search range algorithm; fast ME algorithm; motion vector prediction; variable block size motion estimation; Automatic voltage control; Code standards; Costs; Dynamic range; Encoding; Heuristic algorithms; Image coding; Motion estimation; Production; Video codecs; DSR; H.264/AVC; ME; MVP; VBSME;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Information, Communications & Signal Processing, 2007 6th International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-0982-2
Electronic_ISBN :
978-1-4244-0983-9
Type :
conf
DOI :
10.1109/ICICS.2007.4449801
Filename :
4449801
Link To Document :
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