Block-wise adaptive motion accuracy based B-Picture coding with low-complexity motion compensation

doi:10.1109/TCSVT.2007.903315

	Block-wise adaptive motion accuracy based B-Picture coding with low-complexity motion compensation
	Ji, Xiangyang ; Zhao, Debin ; Gao, Wen
	2007-08-01
发表期刊	IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY
ISSN	1051-8215
卷号	17 期号:8 页码:1085-1090
摘要	This paper presents a novel B-picture coding based on block-wise adaptive motion accuracy (BAMA) with low-complexity motion compensation (MC). BAMA is able to adaptively select the motion accuracy for each inter-block in a B-picture, depending on whether it is of bidirectional prediction, in which compared to the unidirectionally predicted block, lower motion accuracy is applied to the bidirectionally predicted block to reduce MC complexity. To further reduce MC complexity for the bidirectionally predicted luminance block with subpixel motion vectors in both directions, the forward and backward MC interpolations are merged according to the linear operation property of MC interpolation. In addition, a simplified MC interpolation method is also introduced for chrominance components for the bidirectionally predicted block. When integrating the proposed methods into H.264/AVC reference software, the experimental results demonstrate that they can significantly reduce MC complexity for a B-picture while yielding the comparable rate distortion performance in comparison with H.264/AVC although they no longer generate H.264/AVC compliant bitstream.
关键词	block-wise adaptive motion accuracy (BAMA) B-picture MC interpolation video coding
DOI	10.1109/TCSVT.2007.903315
收录类别	SCI
语种	英语
WOS研究方向	Engineering
WOS类目	Engineering, Electrical & Electronic
WOS记录号	WOS:000249041200013
出版者	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://119.78.100.204/handle/2XEOYT63/10853
专题	中国科学院计算技术研究所期刊论文_英文
通讯作者	Ji, Xiangyang
作者单位	1.Chinese Acad Sci, Inst Comp Technol, Beijing 100085, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100085, Peoples R China 3.Harbin Inst Technol, Dept Comp Sci, Harbin 15001, Peoples R China
推荐引用方式 GB/T 7714	Ji, Xiangyang,Zhao, Debin,Gao, Wen. Block-wise adaptive motion accuracy based B-Picture coding with low-complexity motion compensation[J]. IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY,2007,17(8):1085-1090.
APA	Ji, Xiangyang,Zhao, Debin,&Gao, Wen.(2007).Block-wise adaptive motion accuracy based B-Picture coding with low-complexity motion compensation.IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY,17(8),1085-1090.
MLA	Ji, Xiangyang,et al."Block-wise adaptive motion accuracy based B-Picture coding with low-complexity motion compensation".IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY 17.8(2007):1085-1090.