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Method for performing context adaptive binary arithmetic coding with stochastic bit reshuffling for fine granularity scalability
Method for performing context adaptive binary arithmetic coding with stochastic bit reshuffling for fine granularity scalability
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机译:用于具有精细粒度可伸缩性的,具有随机比特转换的上下文自适应二进制算术编码的方法
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摘要
The disclosure relates to a method for performing context based binary arithmetic coding with a stochastic bit-reshuffling scheme in order to improve MPEG-4 fine granularity scalability (FGS) based bit-plane coding. The method comprises steps of: replacing 8×8 DCT with 4×4 integer transform coefficient in MPEG-4 AVC (Advance Video-Coding); partitioning each transform coefficient into significant bit and refinement bit; setting up significant bit context based on energy distribution within a transform block and spatial correlation in adjacent blocks; using an estimated Laplacian distribution to derive coding probability for the refinement bit; and using the context across bit-planes to partition each significant bit-plane for saving side information bit.
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