Title :
Optimal mode selection and synchronization for robust video communications over error-prone networks
Author :
Côté, Guy ; Shirani, Shahram ; Kossentini, Faouzi
Author_Institution :
Dept. of Electr. & Comput. Eng., British Columbia Univ., Vancouver, BC, Canada
fDate :
6/1/2000 12:00:00 AM
Abstract :
We describe an effective method for increasing error resilience of video transmission over bit error prone networks. Rate-distortion optimized mode selection and synchronization marker insertion algorithms are introduced. The resulting video communication system takes into account the channel condition and the error concealment method used by the decoder, to optimize video coding mode selection and placement of synchronization markers in the compressed bit stream. The effects of mismatch between the parameters used by the encoder and the parameters associated with the actual channel condition and the decoder error concealment method are evaluated. Results for the binary symmetric channel and wideband code division multiple access mobile network models are presented in order to illustrate the advantages of the proposed method.
Keywords :
broadband networks; code division multiple access; data compression; decoding; land mobile radio; multiuser channels; optimisation; radio networks; rate distortion theory; video coding; visual communication; W-CDMA mobile network models; binary symmetric channel; bit error prone networks; channel condition; compressed bit stream; decoder; decoder error concealment method; error-prone networks; optimal mode selection; rate-distortion optimized mode selection; robust video communications; synchronization marker insertion algorithms; video coding mode selection; video communication system; video transmission; wideband code division multiple access; Decoding; Multiaccess communication; Optimization methods; Rate-distortion; Resilience; Robustness; Streaming media; Video coding; Video compression; Wideband;
Journal_Title :
Selected Areas in Communications, IEEE Journal on