DocumentCode :
758053
Title :
An Adaptive Motion-Based Unequal Error Protection Approach for Real-Time Video Transport Over Wireless IP Networks
Author :
Qu, Qi ; Pei, Yong ; Modestino, James W.
Author_Institution :
Dept. of Electr. & Comput. Eng., Miami Univ., Coral Gables, FL
Volume :
8
Issue :
5
fYear :
2006
Firstpage :
1033
Lastpage :
1044
Abstract :
In this work, we consider the delivery of digital video over future 3G wireless IP networks and we propose a low-complexity adaptive motion-based unequal error protection (UEP) video coding and transmission system which efficiently combines three existing error-resilience techniques by exploiting knowledge of the source material as well as the channel operating conditions. Given this information, the proposed system can adaptively adjust the operating parameters of the video source encoder and the forward error correction (FEC) channel encoder to maximize the delivered video quality based upon both application-layer video motion estimates and link-layer channel estimates. We demonstrate the efficacy of this approach using the ITU-T H.264 video source coder. The results indicate that a significant performance improvement can be achieved with enhanced resilience to inaccurate channel feedback information and with substantially reduced computational complexity compared to competing approaches
Keywords :
3G mobile communication; IP networks; combined source-channel coding; computational complexity; forward error correction; motion estimation; multimedia communication; real-time systems; video coding; video communication; video streaming; 3G wireless IP network; ITU-T H.264 video source coder; adaptive motion-based unequal error protection video coding approach; application-layer video motion estimates; computational complexity; digital video delivery; error-resilience technique; forward error correction channel encoder; link-layer channel estimates; packet loss; real-time video transport; video quality; video source encoder; video transmission system; Channel coding; Error correction codes; Forward error correction; IP networks; Motion estimation; Performance loss; Robustness; Video coding; Video compression; Wireless networks; FEC; H.264; intra-updating; motion level; motion-based adaptive; packet loss; video transmission;
fLanguage :
English
Journal_Title :
Multimedia, IEEE Transactions on
Publisher :
ieee
ISSN :
1520-9210
Type :
jour
DOI :
10.1109/TMM.2006.879840
Filename :
1703517
Link To Document :
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