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Rate distortion optimization (RDO) based spatial intra prediction is an important new feature in H.264/AVC. It encodes each MB with variable block sizes and variable coding modes. Thus, drastically increased computation complexity is involved. This paper proposes an efficient block type decision algorithm. Entropy feature of each MB is extracted before intra coding. Based on this feature, proposed...
A compression algorithm based on partial SPIHT with classified weighted rate-distortion optimization and adaptive coding depth control is proposed. The different significance weights are initially given to every coding passes in each zero tree, according to the category of interferential regions and the significance of coding bitplanes. Then we determine the coding depth of each zero tree by significance...
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