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

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6 Author(s)
Dong Jiang ; Sch. of Comput., Beijing Univ. of Aeronaut. & Astronaut., China ; Bo Li ; Wei Li ; Bo Bi
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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 work 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 tradeoff 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.

Published in:

Multimedia and Expo, 2004. ICME '04. 2004 IEEE International Conference on  (Volume:3 )

Date of Conference:

27-30 June 2004