Adaptive joint source-channel coding for real-time video applications over wireless IP networks

Qi Qu, Yong Pei, James W. Modestino

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this work we consider the delivery of H.264-coded video over future 3G wireless IP networks and we propose an adaptive motion-based unequal error protection (UEP) video coding/transmission system which can exploit 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 motion estimates and link-layer channel estimates. We demonstrate the efficacy of this approach using the ITU-T H.264 video source coder and the results indicate that a significant performance improvement, measured in terms of end-to-end PSNR, can be achieved compared to representative non-adaptive approaches. Furthermore, we demonstrate that this adaptive motion-based scheme can provide comparable performance to an R-D optimized adaptive comparison system, but with substantially reduced computational complexity.

Original languageEnglish
Title of host publicationProceedings: DMS 2005 - 11th International Conference on Distributed Multimedia Systems
PublisherKnowledge Systems Institute Graduate School
Pages247-252
Number of pages6
ISBN (Print)1891706179
StatePublished - 2005
Event11th International Conference on Distributed Multimedia Systems, DMS 2005 - Banff
Duration: Sep 5 2005Sep 7 2005

Other

Other11th International Conference on Distributed Multimedia Systems, DMS 2005
CityBanff
Period9/5/059/7/05

ASJC Scopus subject areas

  • Computer Graphics and Computer-Aided Design
  • Human-Computer Interaction
  • Software

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  • Cite this

    Qu, Q., Pei, Y., & Modestino, J. W. (2005). Adaptive joint source-channel coding for real-time video applications over wireless IP networks. In Proceedings: DMS 2005 - 11th International Conference on Distributed Multimedia Systems (pp. 247-252). Knowledge Systems Institute Graduate School.