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

页码：609 / 612

页数：4

共 8 条

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