Adaptive MPEG-4 video transmission over PSTN using buffer constraints and RTP feedback

被引：0
|
作者：
Jiang, D [1 ]
Li, B [1 ]
Li, W [1 ]
Bi, B [1 ]
Hu, XM [1 ]
Li, JJ [1 ]
机构：
[1] Beijing Univ Aeronaut & Astronaut, Sch Comp, Beijing, Peoples R China
来源：
2004 IEEE INTERNATIONAL CONFERENCE ON MULTIMEDIA AND EXP (ICME), VOLS 1-3 | 2004年
关键词：
D O I：
暂无
中图分类号：
TP18 [人工智能理论];
学科分类号：
081104 ; 0812 ; 0835 ; 1405 ;
摘要：
Video transmission over PSTN often suffers from some difficulties such as the bandwidth fluctuation, packet loss and transmission delay. Combining the send buffer and network feedback information, this paper brings forward an adaptive video transmission control algorithm JCBAF to timely notify the encoder to get a better match between the output bit-rate and fluctuated bandwidth. Furthermore, a smooth control strategy is proposed to inform the encoder to achieve a better trade off between a lower delay and a good perceptual video quality. Experimental results show that the method can effectively control delay in very low bit-rate video transmission over PSTN or other error prone channels while maintain the video quality.
引用
收藏
页码：1923 / 1926
页数：4
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