| 一种改进的CAVLC解码优化算法 |
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| 引用本文： | 宋娜,刘剑武.一种改进的CAVLC解码优化算法[J].莆田高等专科学校学报,2010(5):63-66. |
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| 作者姓名： | 宋娜 刘剑武 |
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| 作者单位： | 莆田学院电子信息工程学系,福建莆田351100 |
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| 摘 要： | 对于基于上下文的自适应可变长编码（CAVLC）解码方案,提出一种快速解码方法,基本原则：分析非结构化码表的相关性,对码字进行多层次分级分组,采用前导0个数判断法,用简单的加法操作代替非常耗时的查表操作。基于以上基本原则进行算法各个方面的优化和改进,结果表明,降低了一定的存储空间,明显提高了解码速度。
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| 关 键 词： | CAVLC 前导0个数 快速解码 |
An Improved Decoding Algorithm of CAVLC |
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| SONG Na,LIU Jian-wu.An Improved Decoding Algorithm of CAVLC[J].Journal of Putian College,2010(5):63-66. |
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| Authors: | SONG Na LIU Jian-wu |
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| Institution: | (Electronic ＆ Information Engineering Department,Putian University,Putian Fujian 351100,China) |
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| Abstract: | This paper proposes a fast decoding method for CAVLC,the basic idea,including：Analyzing the relevance of unstructured code table;Establishing grouping-and-grading model;Using a leading 0 numbers of judgments law;With a simple addition operation to replace a very time-consuming look-up table operation.Based on the four principles above,the results show that the methods can reduce the memory and increase the decoding speed. |
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| Keywords: | CAVLC leading 0 numbers fast decoding |
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