Wavelet based scalable video coding with spatially scalable motion vectors

Huipin Zhang; Frank Bossen

doi:10.1117/12.503281

23 June 2003 Wavelet based scalable video coding with spatially scalable motion vectors

Huipin Zhang, Frank Bossen

Proceedings Volume 5150, Visual Communications and Image Processing 2003; (2003) https://doi.org/10.1117/12.503281
Event: Visual Communications and Image Processing 2003, 2003, Lugano, Switzerland

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.

Citation Download Citation

Huipin Zhang and Frank Bossen "Wavelet based scalable video coding with spatially scalable motion vectors", Proc. SPIE 5150, Visual Communications and Image Processing 2003, (23 June 2003); https://doi.org/10.1117/12.503281

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