PMID: 16519359Mar 8, 2006Paper

A flexible structure for fully scalable motion-compensated 3-D DWT with emphasis on the impact of spatial scalability

IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society
Nagita Mehrseresht, David Taubman

Abstract

We investigate the implications of the conventional "t+2-D" motion-compensated (MC) three-dimensional (3-D) discrete wavelet/subband transform structure for spatial scalability and propose a novel flexible structure for fully scalable video compression. In this structure, any number of levels of "pretemporal" spatial wavelet decomposition are performed on the original full resolution frames, followed by MC temporal decomposition of the subbands within each spatial resolution level. Further levels of "posttemporal" spatial decomposition may be performed on the spatiotemporal subbands to provide additional levels of spatial scalability and energy compaction. This structure allows us to trade energy compaction against the potential for artifacts at reduced spatial resolutions. More importantly, the structure permits extensive study of the interaction between spatial aliasing, scalability and energy compaction. We show that where the motion model fails, the "t+2-D" structure inevitably produces misaligned spatial aliasing artifacts in reduced resolution sequences. These artifacts can be removed by using pretemporal spatial decomposition. On the other hand, we also show that the "t+2-D" structure necessarily maximizes compression ef...Continue Reading

References

Feb 5, 2008·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·Andrew Secker, David Taubman
Feb 12, 2008·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·D Taubman
Feb 13, 2008·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·S J Choi, J W Woods
Jan 1, 1994·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·J R Ohm

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Citations

Jun 13, 2006·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·Nagita Mehrseresht, David Taubman
Dec 1, 2011·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·Francesc Aulí-Llinàs, Michael W Marcellin
Mar 18, 2011·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·Aous Thabit Naman, David Taubman
Oct 7, 2015·IEEE Transactions on Image Processing : a Publication of the IEEE Signal Processing Society·Francesc Auli-LlinasVictor Sanchez

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