DocumentCode :
1862217
Title :
Is fine-granular scalable video coding beneficial for wireless video applications?
Author :
Stockhammer, Thomas
Author_Institution :
Inst. of Commun. Eng., Munich Univ. of Technol., Germany
Volume :
1
fYear :
2003
fDate :
6-9 July 2003
Abstract :
In this work we compare standard-compliant H.264 video transmission with an efficient fine granular scalable coding method based on H. 264, the progressive texture video coding (PTVC) scheme in a wireless conversational application environment. Therefore, we operate on a simple but meaningful wireless channel model, the block-fading AWGN channel. This model is suitable to represent wireless transmission conditions with respect to time-variance and resource limitations. Suitable error control schemes based on punctured high-memory conventional codes and appropriate decoding methods are applied. Rate-control based on rate-distortion criteria allows selecting optimized source and channel coding rates for both video-coding schemes. In addition, the exploitation of network feedback - typically available in conversational services - is employed using NEWPRED techniques. A fair comparison of the systems shows that the standard-compliant non-scalable system outperforms the advanced scalable systems in terms of average decoded PSNR. The benefits of the scalable system are discussed and also presented via experimental results.
Keywords :
AWGN channels; decoding; fading channels; feedback; image texture; mobile communication; radio networks; telecommunication services; video coding; visual communication; NEWPRED techniques; PSNR; block-fading AWGN channel; channel coding rates; decoding methods; error control schemes; fine-granular scalable video coding; network feedback; progressive texture video coding; punctured high-memory conventional codes; rate-distortion criteria; resource limitations; standard-compliant H.264 video transmission; standard-compliant non-scalable system; time-variance; wireless channel model; wireless conversational application environment; wireless video applications; AWGN channels; Decoding; Delay; MPEG 4 Standard; Multimedia systems; Network servers; Scalability; Streaming media; Video coding; Videoconference;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Multimedia and Expo, 2003. ICME '03. Proceedings. 2003 International Conference on
Print_ISBN :
0-7803-7965-9
Type :
conf
DOI :
10.1109/ICME.2003.1220887
Filename :
1220887
Link To Document :
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