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.
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页码：1754 / 1759
页数：6
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