[1]许东旭,林其伟,董晓慧.采用已编码信息的HEVC帧间快速模式决策算法[J].华侨大学学报(自然科学版),2016,37(4):486-491.[doi:10.11830/ISSN.1000-5013.201604019]
　XU Dongxu,LIN Qiwei,DONG Xiaohui.Fast Inter Mode Decision Algorithm Using the Information of Encoded Coding Units for HEVC[J].Journal of Huaqiao University(Natural Science),2016,37(4):486-491.[doi:10.11830/ISSN.1000-5013.201604019]
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采用已编码信息的HEVC帧间快速模式决策算法()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第37卷
期数:
2016年第4期
页码:
486-491
栏目:
出版日期:
2016-07-04

文章信息/Info

Title:
Fast Inter Mode Decision Algorithm Using the Information of Encoded Coding Units for HEVC
文章编号:
1000-5013(2016)04-0486-06
作者:
许东旭;  林其伟;  董晓慧
华侨大学 信息科学与工程学院, 福建 厦门 361021
Author(s):
XU Dongxu;  LIN Qiwei;  DONG Xiaohui
College of Information Science and Engineering, Huaqiao University, Xiamen 361021, China
关键词:
高效率视频编码;  帧间预测;  编码单元;  快速模式选择;  深度
Keywords:
high efficiency video coding;  inter prediction;  coding unit;  fast mode decision;  depth
分类号:
TP391
DOI:
10.11830/ISSN.1000-5013.201604019
文献标志码:
A
摘要:
针对高效率视频编码(HEVC)帧间预测高额的计算复杂度,提出一种利用已编码块的相关信息进行快速帧间预测的算法.首先,在每个深度级上,利用当前编码单元联合其时空上最近的所有已编码单元的运动矢量(MV)长度,提前决定2N×2N的预测单元(PU)分割尺寸.其次,利用当前深度层获得的率失真代价(RDcost),结合离线统计出设置的阈值,终止满足条件的编码单元的进一步分割进程.实验结果表明:文中算法可以节省37.8%的编码时间,并取得与原始算法几乎相同的率失真性能.
Abstract:
In order to further reduce the great computational complexity for high efficiency video coding(HEVC)inter prediction, a novel algorithm using the information of encoded CUs has been proposed in this paper. Firstly, at each depth level, the lengths of all the MVs which are from current CU and spatially or temporarily adjacent CUs are used to decide 2N×2N partition early. Secondly, by using the minimum RDcost of current CU and the off-line pre-set threshold values, the split of CUs which meet the requirements can be early termination. Experimental results show that the proposed algorithm can save an average of 37.8% of the encoding time with negligible loss of coding efficiency compared with the original algorithm.

参考文献/References:

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[8] SHEN Liquan,LIU Zhi,ZHANG Xinpeng,et al.An effective CU size decision method for HEVC encoders[J].IEEE Transactions on Multimedia,2013,15(2):465-470.
[9] XIONG Jian,LI Hongliang,WU Qingbo,et al.A fast HEVC inter CU selection method based on pyramid motion divergence[J].IEEE Transactions on Multimedia,2013,16(2):559-564.
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相似文献/References:

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　XU Dong-xu,LIN Qi-wei.Fast Depth Decision Algorithm Based on Two-Dimensional Histogram for HEVC Intra Coding[J].Journal of Huaqiao University(Natural Science),2015,36(4):23.[doi:10.11830/ISSN.1000-5013.2015.01.0023]
[2]吴良堤,冯桂.HEVC帧间编码的快速CU尺寸和PU模式决策算法[J].华侨大学学报(自然科学版),2018,39(1):121.[doi:10.11830/ISSN.1000-5013.201508038]
　WU Liangdi,FENG Gui.Fast CU Size and PU Mode Decision Algorithm for HEVC Inter Coding[J].Journal of Huaqiao University(Natural Science),2018,39(4):121.[doi:10.11830/ISSN.1000-5013.201508038]

备注/Memo

备注/Memo:
收稿日期: 2014-08-07
通信作者: 林其伟(1957-),男,副教授,主要从事视频编码与网络通信的研究.E-mail:qwlin@hqu.edu.cn.
基金项目: 福建省自然科学基金资助项目(2012J01275)
更新日期/Last Update: 2016-07-20