Title :
An error resilient codec for wireless video
Author :
Fan, Liang ; Xiaohui, Wei ; Zimei, Xiao ; Hongmei, Liu
Author_Institution :
Dept. of Electron., Zhongshan Univ., Guangzhou, China
Abstract :
Error resilience techniques have already become an important part of video coding over error-prone channels. In this paper, we present an error resilient codec which is based on H.263 data partitioned slice mode. It employs several error resilient techniques including data partitioning, reversible variable length coding, error detection and localization, error concealment etc. In order to check out the error resilience performance of the codec, we use error patterns to simulate W-CDMA channels. The simulations are conducted on H.263 sequences at 64, 128 and 384 kbps. Simulation results show that the error resilience algorithms applied by the codec are effective. Both the subjective and the objective quality of the reconstructed image show a remarkable improvement
Keywords :
code division multiple access; data compression; error detection; image reconstruction; image sequences; mobile radio; telecommunication channels; variable length codes; video codecs; video coding; 128 kbit/s; 384 kbit/s; 64 kbit/s; H.263 data partitioned slice mode; H.263 sequences; W-CDMA channels; compressed video communication; error concealment; error detection; error localization; error resilient codec; error-prone channels; mobile networks; reconstructed image; reversible variable length coding; video coding; wireless video; Codecs; Decoding; Image coding; Image reconstruction; Partitioning algorithms; Predictive coding; Resilience; Streaming media; Video compression; Video sequences;
Conference_Titel :
Communication Technology Proceedings, 2000. WCC - ICCT 2000. International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-6394-9
DOI :
10.1109/ICCT.2000.890880