基于H．264的CABAC熵编码器实现研究  

Research and Implementation of CABAC Entropy Encoder Based on H. 264

作　　者：侯超[1] 

机构地区：[1]重庆邮电大学通信与信息工程学院,重庆400065

出　　处：《电光系统》2012年第1期30-34,共5页Electronic and Electro-optical Systems

摘　　要：CABAC熵编码是H．264视频编码中的关键技术，其CABAC熵编码的复杂性要高于Huffman之类基于查表的熵编码。本文对H．264标准中的CABAC熵编码进行了研究，并根据其二值化，上下文建模，二进制算术编码和编码流程特点，提出了一种有效的CABAC熵编码的编码器方案，该方案能满足编码器硬件实现的需求。One key technique for improving the coding efficiency of H. 264 video standard is the entropy coder, i.e. context adaptive binary arithmetic coder （CABAC）. However, the complexity of the encoding process of CABAC is far higher than the table driven entropy encoding schemes such as the Huffnaan coding. This paper provides the design of CABAC entropy encoder for H. 264 based on the research of binarization, context model- er, binary arithmetric encoder, and the flow about CABAC entropy coding. It also provides an effective CABAC entropy coding encoder solutions to meet the needs of the encoder hardware implementation.

关 键 词：H.264 CABAC熵编码 编码器 

分 类 号：TP919.31[自动化与计算机技术]