Meng Chen, Department of Electrical and Computer Engineering, University of Maryland, College Park.
Guan-ming Su, Department of Electrical and Computer Engineering, University of Maryland, College Park.
Min Wu, Department of Electrical and Computer Engineering, University of Maryland, College Park.
In this paper, we propose a novel multi-point video conferencing system through error-prone channels, where the aggregation of multiple video streams and resource allocation are performed in a distributed manner. Video stream combiners, which are located in different geographical areas and serve as portals for conferees, aggregate incoming streams supplied by local users with other streams aggregated from nearby video stream combiners. A distributed multi-stream error protection scheme is performed in each video stream combiner to minimize the maximal expected video distortion among all aggregated streams. The simulation results demonstrate that our proposed scheme outperforms the traditional multicasting scheme by 1dB ~ 1.4dB in terms of average PSNR.
Citation:
Meng Chen, Guan-ming Su, Min Wu, "Robust Distributed Multi-Point Video Conferencing Over Error-Prone Channels," icme, pp.1149-1152, 2006 IEEE International Conference on Multimedia and Expo, 2006
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