[1]许东旭,林其伟.二维直方图的HEVC帧内快速深度决策算法[J].华侨大学学报(自然科学版),2015,36(1):23-28.[doi:10.11830/ISSN.1000-5013.2015.01.0023]
　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(1):23-28.[doi:10.11830/ISSN.1000-5013.2015.01.0023]
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二维直方图的HEVC帧内快速深度决策算法()
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《华侨大学学报（自然科学版）》[ISSN:1000-5013/CN:35-1079/N]

卷:
第36卷
期数:
2015年第1期
页码:
23-28
栏目:
出版日期:
2015-01-20

文章信息/Info

Title:
Fast Depth Decision Algorithm Based on Two-Dimensional Histogram for HEVC Intra Coding
文章编号:
1000-5013(2015)01-0023-06
作者:
许东旭;  林其伟
华侨大学 信息科学与工程学院, 福建 厦门 361021
Author(s):
XU Dong-xu;  LIN Qi-wei
College of Information Science and Engineering, Huaqiao University, Xiamen 361021, China
关键词:
高效率视频编码;  深度;  二维直方图;  快速模式选择;  编码单元;  灰度直方图
Keywords:
high efficiency video coding;  depth;  two-dimensional histogram;  fast mode decision;  coding unit;  gray histogram
分类号:
TN919.81
DOI:
10.11830/ISSN.1000-5013.2015.01.0023
文献标志码:
A
摘要:
针对高效率视频编码(HEVC)帧内预测高额的计算复杂度,提出一种基于二维直方图的快速深度决策算法.首先,对当前最大编码单元(LCU)采用3×3矩阵进行滤波;然后,分别统计原始LCU以及滤波后LCU的像素分布,生成二维灰度直方图.通过该二维直方图所表征的纹理特征,进行深度的自适应选择,减少不必要的深度计算.实验结果表明:同原始HM10.1相比,文中提出的算法可以节省编码时间21.6%,同时保证视频质量几乎不变.
Abstract:
In order to further reduce the great computational complexity for high efficiency video coding(HEVC)intra coding prediction high cost case, a fast depth decision algorithm based on two-dimensional histogram has been proposed in this paper. First, a 3×3 matrix is used to filter the current largest coding unit(LCU). Then, a two-dimensional histogram which is based on the distribution of gray values of the original LCU and the filtered LCU can be generated. By using the two-dimensional histogram, some of the depth levels which are unnecessary can be skipped. Experimental results show that the proposed algorithm can save 21.6% of the encoding time on average with negligible loss of coding efficiency compared with the original HM10.1.

参考文献/References:

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相似文献/References:

[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.[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(1):486.[doi:10.11830/ISSN.1000-5013.201604019]

备注/Memo

备注/Memo:
收稿日期: 2013-12-23
通信作者: 林其伟(1959-),男,副教授,主要从事HEVC中的快速算法的研究.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: 2015-01-20