[1]吴良堤,冯桂.HEVC帧内预测编码的快速CU决策算法[J].华侨大学学报(自然科学版),2017,38(4):556-561.[doi:10.11830/ISSN.1000-5013.201704021]
　WU Liangdi,FENG Gui.Fast CU Decision Algorithm for HEVC Intra Prediction Coding[J].Journal of Huaqiao University(Natural Science),2017,38(4):556-561.[doi:10.11830/ISSN.1000-5013.201704021]
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HEVC帧内预测编码的快速CU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38卷
期数:
2017年第4期
页码:
556-561
栏目:
出版日期:
2017-07-10

文章信息/Info

Title:
Fast CU Decision Algorithm for HEVC Intra Prediction Coding
文章编号:
1000-5013(2017)04-0556-06
作者:
吴良堤;  冯桂
华侨大学 信息科学与工程学院, 福建 厦门 361021
Author(s):
WU Liangdi;  FENG Gui
College of Information Science and Engineering, Huaqiao University, Xiamen 361021, China
关键词:
高效视频编码;  帧内编码;  编码单元;  残差信息;  Hadamard变换
Keywords:
high efficiency video coding;  intra coding;  coding unit;  residual information;  absolute sum of Hadamard transformed
分类号:
TN919.81
DOI:
10.11830/ISSN.1000-5013.201704021
文献标志码:
A
摘要:
提出一种快速编码单元(CU)修剪方法和CU深度范围决策方法.在快速CU修剪方法中,根据贝叶斯决策准则,基于残差信息Hadamard变换绝对值之和(SATD)提前结束CU的修剪;在CU深度范围决策方法中,根据当前CU深度与空间邻近CU深度的相似性决策当前CU深度级范围.通过在HM10.1的实验证明:文中方法相比于HM10.1的标准代码,能降低35.9%的编码时间,且BDBR的增加仅为1.039%.
Abstract:
In this paper, a fast coding unit(CU)pruning and depth levels decision method is proposed. The early CU pruning method is performed according to a Bayes decision rule method based on the absolute sum of Hadamard transformed coefficients of the residual signal(SATD). Based on the depth information resemblance between spatio adjacent CUs and the current CU, some depths can be excluded. Experimental results show that the proposed algorithm achieves 35.9% encoder time saving on average compared to the original coding in HM10.1 with only 1.039% bit rate increment in coding performance.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期: 2016-09-04
通信作者: 冯桂(1960-),女,教授,博士,主要从事图像信息处理的研究.E-mail:fengg@hqu.edu.cn.
基金项目: 福建省自然科学基金资助项目(2014J01242, 2016J01306)
更新日期/Last Update: 2017-07-20