Title :
Optimum unequal error protection of SNR-scalable DPCM-coded video
Author_Institution :
Dept. of Telecommun., Norwegian Univ. of Sci. & Technol. (NTNU), Trondheim, Norway
Abstract :
A channel code allocation scheme is developed for transmission of video over error-prone channels. The system is designed to minimize the expected distortion of the video under a quality constraint. It is based on the Viterbi algorithm and achieves a very robust bit stream, also in mismatch situations. It is further shown that the distribution of available channel codes varies significantly with respect to the channel conditions.
Keywords :
channel coding; error correction codes; maximum likelihood estimation; video coding; visual communication; DPCM-coded video; SNR-scalable video; Viterbi algorithm; available channel code distribution; channel code allocation scheme; channel conditions; distortion minimization; error-prone channels; mismatch situations; optimum unequal error protection; robust bit stream; video quality constraint; video transmission; Decoding; Entropy coding; Error correction codes; Payloads; Robustness; Scalability; Streaming media; Video coding; Video compression; Viterbi algorithm;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04). IEEE International Conference on
Print_ISBN :
0-7803-8484-9
DOI :
10.1109/ICASSP.2004.1326905
