A fast intra prediction algorithm for H.264/AVC video coding

被引:0
作者
Kim, Joohee [1 ]
Lee, Hyo-Jik [1 ]
机构
[1] Inha Univ, Dept Informat & Commun Engn, 253 Yonghyun Dong, Inchon 402751, South Korea
来源
PROCEEDINGS OF THE 7TH WSEAS INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING, ROBOTICS AND AUTOMATION: ADVANCED TOPICS ON SIGNAL PROCESSING, ROBOTICS AND AUTOMATION | 2008年
关键词
H.264/AVC; intra prediction; video coding; video streaming;
D O I
暂无
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
Intra prediction is one of the techniques that enables H.264/AVC to achieve a significant improvement in coding efficiency relative to prior video coding standards. To achieve the highest coding efficiency, H.264/AVC uses rate-distortion optimization technique to get the best intra prediction mode which maximizes coding quality and minimizes resulting data bits. As a result, the encoder complexity is increased considerably. This paper presents a fast intra prediction algorithm for H.264/AVC video coding. In the proposed scheme, prior to intra prediction the dominant edge of each block is determined. Based on the edge direction information, only a small number of prediction modes are chosen for RDO calculation. Experimental results show that the proposed algorithm achieves an average of 20% reduction in encoding time compared with the current rate-distortion optimized mode decision alaorithm used in H.264/AVC with negligible quality degradation.
引用
收藏
页码:226 / +
页数:3
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