Title :
Joint Source-Channel Distortion Modelling for MPEG-4 Video
Author :
Sabir, Muhammad F. ; Heath, Robert W. ; Bovik, Alan C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Texas Univ., Austin, TX
Abstract :
Joint source-channel coding is becoming more important for wireless multimedia transmission due to high bandwidth requirements of these multimedia sources. Design of all joint source-channel coding schemes require an estimate of distortion at different source coding rates and under different channel conditions. In this paper, we present one such distortion model for estimating distortion due to quantization and channel errors in a joint manner for MPEG-4 compressed video streams. This model takes into account important aspects of video compression such as transform coding, motion compensation, and variable length coding. Results show that our model estimates distortion within 1 dB of actual simulation values in terms of peak-signal-to-noise-ratio
Keywords :
combined source-channel coding; media streaming; motion compensation; radiocommunication; transform coding; variable length codes; video coding; video streaming; MPEG-4 video; compressed video streams; joint source-channel coding schemes; joint source-channel distortion modelling; motion compensation; peak-signal-to-noise-ratio; transform coding; variable length coding; video compression; wireless multimedia transmission; Bandwidth; Computational modeling; Image coding; MIMO; MPEG 4 Standard; Power system modeling; Source coding; Streaming media; Transform coding; Video compression;
Conference_Titel :
Acoustics, Speech and Signal Processing, 2006. ICASSP 2006 Proceedings. 2006 IEEE International Conference on
Conference_Location :
Toulouse
Print_ISBN :
1-4244-0469-X
DOI :
10.1109/ICASSP.2006.1660940
