一种改进的CAVLC解码器分组优化方法

2009 International Conference on Image Analysis and Signal Processing Pub Date : 2009-04-11 DOI:10.1109/IASP.2009.5054624

Zhang Xiu-li, Luo Zhao-Si, Zhang Rui-Hua

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引用次数: 1

摘要

变长码是一种通用的无损熵编码方法，被广泛应用于视频压缩标准中。本文在分析R. Hashemian的定长群译码方法以及CAVLC码字的结构和统计原理的基础上，提出了一种将CAVLC码字分成前缀和后缀的译码方法。实验证明，该方法比R. Hashemian的定长组解码方法节省62.3%的内存，降低所需的解码速度。

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An improved group-based optimizing of CAVLC decoder

Variable length code is a general lossless entropy coding method that is widely used in video compress standards. Based on analyzing R. Hashemian's fixed-length group decoding methods and the structure and statistic principles of CAVLC code words, this paper puts forward a kind of decoding method by dividing the CAVLC code words into prefix and suffix. The method has been proved to save 62.3% memory and decrease the needed decoding speed more than R. Hashemian's fixed-length group decoding methods.

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2009 International Conference on Image Analysis and Signal Processing

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