Block-wise adaptive motion accuracy based b-picture coding with low-complexity motion compensation
文献类型：期刊论文
| 作者 | Ji, Xiangyang; Zhao, Debin; Gao, Wen |
| 刊名 | Ieee transactions on circuits and systems for video technology
 |
| 出版日期 | 2007-08-01 |
| 卷号 | 17期号:8页码:1085-1090 |
| 关键词 | Block-wise adaptive motion accuracy (bama) B-picture Mc interpolation Video coding |
| ISSN号 | 1051-8215 |
| DOI | 10.1109/tcsvt.2007.903315 |
| 通讯作者 | Ji, xiangyang(xyji@jdl.ac.cn) |
| 英文摘要 | 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. |
| WOS关键词 | VIDEO |
| WOS研究方向 | Engineering |
| WOS类目 | Engineering, Electrical & Electronic |
| 语种 | 英语 |
| WOS记录号 | WOS:000249041200013 |
| 出版者 | IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2380140 |
| 专题 | 中国科学院大学 |
| 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. |
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来源：中国科学院大学
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