Title :
Video transmission with error concealment over channels with memory
Author_Institution :
Sarnoff Corp., Princeton, NJ, USA
Abstract :
We present results for progressive transmission of a video sequence with error concealment on a burst error channel. The impact of channel errors is alleviated by using a maximum a posteriori (MAP) detector, without explicit channel coding, which exploits both residual correlation in the compressed video stream as well as channel memory. The residual redundancy in the motion compensated prediction error (MCPE) stream is increased by introducing a leak. An optimal leak factor for maximizing MAP performance (SNR) is determined
Keywords :
coding errors; correlation methods; image sequences; maximum likelihood detection; motion compensation; prediction theory; telecommunication channels; video coding; MAP detector; SNR; burst error channel; channel memory; compressed video stream; error concealment algorithm; maximum a posteriori detector; motion compensated prediction error; optimal leak factor; progressive transmission; residual correlation; video sequence; video transmission; Channel coding; Detectors; Error correction; Image coding; Image sequences; Motion estimation; Redundancy; Streaming media; Video compression; Video sequences;
Conference_Titel :
Image Processing, 1997. Proceedings., International Conference on
Conference_Location :
Santa Barbara, CA
Print_ISBN :
0-8186-8183-7
DOI :
10.1109/ICIP.1997.638678
