2006
DOI: 10.1109/tip.2005.860619
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A flexible structure for fully scalable motion-compensated 3-D DWT with emphasis on the impact of spatial scalability

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 "posttempo… Show more

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Cited by 39 publications
(23 citation statements)
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“…Concurrently and independently from our work, similar solutions appeared in the form of "2D+t+2D" schemes [7] and "In-Scale" MCTF schemes [14]. In "2D+t+2D" schemes, several levels of the so-called "pre-S" spatial DWT decomposition precede the subband-independent temporal filtering stage (Fig.…”
Section: Spatial Scalabilitysupporting
confidence: 64%
See 1 more Smart Citation
“…Concurrently and independently from our work, similar solutions appeared in the form of "2D+t+2D" schemes [7] and "In-Scale" MCTF schemes [14]. In "2D+t+2D" schemes, several levels of the so-called "pre-S" spatial DWT decomposition precede the subband-independent temporal filtering stage (Fig.…”
Section: Spatial Scalabilitysupporting
confidence: 64%
“…2). Two major factors contributing to such poor performance of the "t+2D" structure are: 1. inappropriate motion modeling that creates visually annoying artifacts, and 2. subband leakage [7,8,9] induced by shift-variance of critically-sampled DWT transforms. In order to analyze the subband-leakage problem of a "t+2D" scheme, we consider equivalent structure (Fig.…”
Section: Spatial Scalabilitymentioning
confidence: 99%
“…Although other works in the literature [7], [9], [34] determine the context depending on the position of the significance neighbors, the analysis in [35] shows that simple context formation approaches like (1) also achieve competitive coding performance. This approach is employed herein due to its computational simplicity.…”
Section: B Context Formation and Probability Modelmentioning
confidence: 95%
“…The proposed strategy is viable for any context-based coding system such as [19]- [23]. For concreteness, the proposed scheme is described and tested within the framework of JPEG2000, without sacrificing any of the advanced features of the standard.…”
Section: Introductionmentioning
confidence: 99%