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Proceedings Paper

Wavelet based scalable video coding with spatially scalable motion vectors
Author(s): Huipin Zhang; Frank Bossen
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Paper Abstract

The paper studies scalable video coding based on multiresolution video representations generated by multi-scale subband motion compensated temporal filtering (MCTF) and spatial wavelet transform. Since MCTF is performed subband by subband in the spatial wavelet domain, motion vectors are available for reconstructing video sequences of any possible reduced spatial resolution, restricted by the dyadic decomposition pattern and the maximal spatial decomposition level. The multiresolution representations naturally provide a framework with which both spatial scalability and temporal scalability can be very conveniently and efficiently supported by a video coder that utilizes such multiresolution video representations. Such video coders can be fully scalable by incorporating wavelet-domain bit-plane image coding techniques. This paper examines the performance, including scalability and coding efficiency, of a scalable video coder that utilizes such multi-scale video representations together with the EZBC image coder. A wavelet-domain variable block size motion estimation algorithm is introduced to enhance the performance of the subband MCTF. Experiments show that the proposed coder outperforms the state of the art fully scalable coder MC-EZBC in terms of the spatial scalability.

Paper Details

Date Published: 23 June 2003
PDF: 10 pages
Proc. SPIE 5150, Visual Communications and Image Processing 2003, (23 June 2003); doi: 10.1117/12.503281
Show Author Affiliations
Huipin Zhang, NTT DoCoMo Communication Labs. USA (United States)
Frank Bossen, NTT DoCoMo Communication Labs. USA (United States)


Published in SPIE Proceedings Vol. 5150:
Visual Communications and Image Processing 2003
Touradj Ebrahimi; Thomas Sikora, Editor(s)

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