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Coding efficiency of the context-based arithmetic coding engine of AVS 2.0 in the HEVC encoder

机译:HEVC编码器中AVS 2.0基于上下文的算术编码引擎的编码效率

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This paper evaluates the coding efficiency of the HM 13.0 HEVC rate-distortion optimizing (RDO) encoder before and after the context-adaptive binary arithmetic coding (CABAC) engine is replaced with the context-based arithmetic coding (CBAC) engine of AVS 2.0. In addition, the rate errors are controlled by varying the bit length of the fractional part for the estimated bit in the rate estimation table. The experimental result shows that the CBAC engine provides 0.21% BD-rate reduction on average, compared to the CABAC engine in the HEVC Test Model (HM) 13.0 encoder, when the bit length of the fractional part of the estimated rate is 3.
机译:本文评估了在将上下文自适应二进制算术编码(CABAC)引擎替换为AVS 2.0的基于上下文的算术编码(CBAC)引擎前后,HM 13.0 HEVC率失真优化(RDO)编码器的编码效率。另外,通过改变速率估计表中的估计比特的分数部分的比特长度来控制速率误差。实验结果表明,与HEVC测试模型(HM)13.0编码器中的CABAC引擎相比,当估计速率的小数部分的位长为3时,CBAC引擎平均可将BD速率降低0.21%。

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