Name
Abstract | ||
|---|---|---|
An optimal three-dimensional (3-D) coefficient tree structure for 3-D zerotree wavelet video coding is considered in this paper. The 3-D zerotree wavelet video coding is inspired by the success of the two-dimensional (2-D) zerotree wavelet image coding. Existing 3-D zerotree wavelet video codecs use the either symmetric or symmetric-alike 3-D tree structure, which is a straightforward extension of the symmetric 2-D tree structure in the zerotree wavelet image coding. In this paper, we show that the 3-D zerotree coding does not need to be applied symmetrically along all the directions, as the 2-D zerotree image coding does. We find that an asymmetric 3-D tree structure working with a more flexible asymmetric 3-D wavelet transform can produce a higher compression ratio than traditional symmetric approaches. The new 3-D tree structure can be used to improve the rate-distortion performance of many existing 3-D zerotree wavelet video codecs without sacrificing other features such as scalability and computational efficiency. The new tree structure is applied to the 3-D set partitioning in hierarchical trees method and receives convincing peak signal-to-noise ratio improvements in experiments. |
Year | DOI | Venue |
|---|---|---|
2003 | 10.1109/TCSVT.2003.816514 | IEEE Trans. Circuits Syst. Video Techn. |
Keywords | Field | DocType |
optimisation,symmetric 2d tree structure,compression ratio,psnr,3-d wavelet video coding,3d zerotree wavelet video codecs,symmetric-alike 3-d tree structure,wavelet transforms,computational efficiency,new 3-d tree structure,existing 3-d zerotree wavelet,optimal 3-d coefficient tree,data compression,optimal 3d coefficient tree structure,transform coding,asymmetric 3-d tree structure,scalability,three-dimensional coefficient tree structure,flexible asymmetric 3-d wavelet,3d wavelet video coding,3-d zerotree wavelet video,3d set partitioning,video coding,hierarchical trees method,3-d zerotree coding,2-d zerotree image coding,peak signal-to-noise ratio,zerotree wavelet image coding,3d zerotree wavelet video coding,symmetric 3d tree structure,rate distortion theory,asymmetric 3d wavelet transform,rate-distortion performance,3-d set,video codecs,tree structure,set partitioning in hierarchical trees,peak signal to noise ratio,three dimensional,wavelet transform | Computer vision,Coding tree unit,Set partitioning in hierarchical trees,Pattern recognition,Computer science,Transform coding,Tree structure,Artificial intelligence,Data compression,Wavelet packet decomposition,Wavelet transform,Wavelet | Journal |
Volume | Issue | ISSN |
13 | 10 | 1051-8215 |
Citations | PageRank | References |
23 | 1.11 | 20 |
Authors | ||
4 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| chao he | 1 | 40 | 2.66 |
| Jianyu Dong | 2 | 46 | 3.89 |
| Yuan F. Zheng | 3 | 1073 | 283.25 |
| Zhigang Gao | 4 | 94 | 18.49 |