A mixed scheme to improve subjective quality in low bitrate video

被引：1

作者：

Yuan, Y ^{[1
]}

Feng, D ^{[1
]}

Zhong, YZ ^{[1
]}

机构：

[1] Tsing Hua Univ, Dept Comp Sci, Beijing 100084, Peoples R China

来源：

2004 IEEE WIRELESS COMMUNICATIONS AND NETWORKING CONFERENCE, VOLS 1-4: BROADBAND WIRELESS - THE TIME IS NOW | 2004年

关键词：

wireless multimedia; low bitrate; video coding; subjective quality;

D O I：

10.1109/WCNC.2004.1311818

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

In wireless multimedia applications, low bitrate video takes an important part. However, its poor subjective quality often dissatisfies consumers. In this paper, we present a mixed scheme to improve subjective quality in low bitrate video. Our scheme is a combination of several original techniques: fast dynamic key-frame / variable frame-rate coding, ringing effect reduction, band effect reduction, and resolution / quantization tradeoff. The scheme can be applied on many popular video-coding standards, such as MPEG-1, MPEG-2, MPEG-4, and H.264. Additional computing costs involved by the scheme are acceptable. Experiments show significant improvement of subjective quality, and prove that the scheme is valuable.

引用

页码：1754 / 1759

页数：6

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