An Embedded Wavelet Video Coder Using Three-Dimensional Set Partitioning in Hierarchical Trees (SPIHT)
نویسندگان
چکیده
The SPIHT (set partitioning in hierarchical trees) algorithm by Said and Pearlman is known to have produced some of the best results in still image coding. It is a fully embeded wavelet coding algorithm with precise rate control and low complexity. In this paper is presented an application of the SPIHT algorithm to video sequences, using three-dimensional (3D) wavelet decompositions and 3D spatio-temporal dependence trees. A full 3D-SPIHT encoder/decoder is implemented in software and is compared against MPEG-2 in parallel simulations. Although there is no motion estimation or compensation in 3D SPIHT, it performs measurably and visually better than MPEG2, which employs complicated means of motion estimation and compensation.
منابع مشابه
Low bit-rate scalable video coding with 3-D set partitioning in hierarchical trees (3-D SPIHT)
In this paper, we propose a low bit-rate embedded video coding scheme that utilizes a three-dimensional (3D) extension of the set partitioning in hierarchical trees (SPIHT) algorithm which has proved so successful in still image coding. Three-dimensional spatio-temporal orientation trees coupled with powerful SPIHT sorting and reenement renders 3D SPIHT video coder so eecient that it provides c...
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