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An Error Resilient Coding Scheme for Transmitting H. 264 Real-time Video Streaming Over 3G Networks
一种适合3G网络传输的H.264 实时视频容错编码

Keywords: H,264,video coding,error resilience,3G network,multiple references
H.264
,视频编码,容错,3G网络,多参考帧

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Abstract:

To deliver H.264 real-time video streaming over 3G networks,an error resilient coding scheme is presented in this paper.The system first divides original sequence into two sub-sequences to encode separately and then transmits the resulting two bitstreams over different channels so that the effect of burst channel error on image quality can be decreased.The frames which are not correctly decoded are predicted by bidirectional weighted interpolation of the frames from the other sub-stream.In order to restore the decoding process of the sub-stream suffering transmission error,the reference picture of the other sub-streams correctly decoded is selected as reference for the error sub-stream so that the error propagation can be eliminated.The simulation results show that the proposed method can efficiently combat bit error and packet loss in wireless channels and improve the image quality.The performance of the proposed method gains more than 0.6dB compared with the related approaches.

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