Title :
Region and time based unequal error protection for video transmission over mobile links
Author :
Sang-ug Kang ; Kook-Yeol Yoo
Author_Institution :
Lab. of Inf. Media, Samsung Electron. Co., Suwon
Abstract :
A new standard-compatible combined source channel coding approach to unequal error protection method based on regional and temporal sensitivity to error propagation is presented utilizing RCPC coding. This scheme can be adapted to time-varying mobile channel characteristics. The same RCPC coding scheme as that in MUX layer of H.32× is used so as not to add additional complexity in system level and some error concealment techniques are used to further mitigate the image degradation. It is shown that the proposed scheme achieved 0.3~1 dB improvement in PSNR with the same bit rate compared with fixed rate convolutional coding scheme
Keywords :
combined source-channel coding; convolutional codes; error correction codes; mobile communication; time-varying channels; video coding; PSNR; RCPC coding; bit rate; error propagation; image degradation; mobile links; rate compatible punctured convolutional code; regional sensitivity; standard-compatible combined source channel coding; temporal sensitivity; time-varying mobile channel characteristics; unequal error protection; video transmission; Bandwidth; Costs; Degradation; Error correction codes; Image coding; Protection; Resilience; Robustness; Streaming media; Video compression;
Conference_Titel :
Circuits and Systems, 1999. ISCAS '99. Proceedings of the 1999 IEEE International Symposium on
Conference_Location :
Orlando, FL
Print_ISBN :
0-7803-5471-0
DOI :
10.1109/ISCAS.1999.780054
