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- W2149402008 abstract "In H.264/AVC, it is a common phenomenon that the transformation coefficients of a block are quantized to zero. Such block is called a all-zero block(AZB). in the process of mode decision, if a AZB can be detected early, the overhead of following transformation and quantization can be avoided. This will lead magnificent saving in encoding time. A fast mode decision algorithm based on AZBs detection in H.264/AVC is proposed in this paper. We present a more precise threshold based on the analysis on the theory of integer transform and quantization. Then, a more efficient mode decision algorithm is proposed based on the probabiLities of inter/intra modes. The simulation results show that the proposed algorithm achieve better performance in encoding time saving with ignorable PSNR degradation and a Litter bit rate saving, compare to the exist mode decision algorithms." @default.
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- W2149402008 date "2011-08-01" @default.
- W2149402008 modified "2023-09-23" @default.
- W2149402008 title "Fast Mode Decision Based on All-Zero Block in H.264/AVC" @default.
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- W2149402008 doi "https://doi.org/10.1109/icdma.2011.135" @default.
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