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Design of a highly efficient wavelet-based video coding scheme

 
: Marpe, D.; Wiegand, T.; Cycon, H.L.

:

Jay Kuo, C.-C. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.; Society for Imaging Science and Technology -IS&T-:
Visual Communications and Image Processing 2002. Vol. 2 : 21 - 23 January 2002, San Jose, USA
Bellingham/Wash.: SPIE, 2002 (SPIE Proceedings Series 4671)
ISBN: 0-8194-4411-1
S.1133-1141
Conference "Visual Communications and Image Processing" <2002, San Jose/Calif.>
Englisch
Konferenzbeitrag
Fraunhofer HHI ()

Abstract
In this paper, we present a novel design of a wavelet-based video coding algorithm within a conventional hybrid framework of temporal motion-compensated prediction and transform coding. Our proposed algorithm involves the incorporation of multi-flame motion compensation as an effective means of improving the quality of the temporal prediction. In addition, we follow the rate-distortion optimizing strategy of using a Lagrangian cost function to discriminate between different decisions in the video encoding process. Finally, we demonstrate that context-based adaptive arithmetic coding is a key element for fast adaptation and high coding efficiency. The combination of overlapped block motion compensation and frame-based transform coding enables blocking-artifact free and hence subjectively more pleasing video. In comparison with a highly optimized MPEG-4 Advanced Simple Profile coder, our proposed scheme provides significant performance gains in objective quality of 2.0-3. 5 dB PSNR.

: http://publica.fraunhofer.de/dokumente/N-169772.html