ENHANCING COMPRESSION RATE BY JUST-NOTICEABLE DISTORTION MODEL FOR H.264/AVC

被引:0
|
作者
Mak, Chun-Man [1 ]
Ngan, King Ngi [1 ]
机构
[1] Chinese Univ Hong Kong, Dept Elect Engn, Hong Kong, Hong Kong, Peoples R China
来源
ISCAS: 2009 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1-5 | 2009年
关键词
VISUAL DISTORTION;
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
In this paper, we proposed an algorithm to enhance compression rate for the H.264/AVC. The properties of human visual system are utilized to reduce the bit rate without introducing noticeable visual distortion. The just-noticeable distortion (JND) threshold for every block in a frame is computed, and non-zero coefficients are removed if their magnitudes are less than the JND thresholds. Experimental results show that bit rate can be reduced by as much as 50% without degradation in visual quality.
引用
收藏
页码:609 / 612
页数:4
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