| 基于码头分组的H.264变长解码算法优化 |
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| 引用本文： | 李江波,陈冒银,王忠辉.基于码头分组的H.264变长解码算法优化[J].现代电子技术,2007,30(19):66-68. |
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| 作者姓名： | 李江波 陈冒银 王忠辉 |
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| 作者单位： | 装备指挥技术学院,北京,101416 |
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| 摘 要： | H.264标准在编解码模块定义了一种基于内容的变长编码(CAVLC),对于实时处理来说,若该部分计算量过大,将影响整个系统的处理速度。对H.264熵解码模块进行了研究,在分析了CAVLC码表特征后,利用分组优化查表思想,提出了码头分组的快速变长熵解码方法。结果表明该方法使得H.264解码器在熵解码模块质量没有下降的情况下,速度提高了4倍以上。
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| 关 键 词： | 分组优化 CAVLC解码 码头分组 |
| 文章编号： | 1004-373X（2007）19-066-03 |
| 收稿时间： | 2007-03-27 |
| 修稿时间： | 2007年3月27日 |
CAVLC Decoder Optimizing in H.264 Based on Dividing the Head of Code |
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| LI Jiangbo,CHEN Maoyin,WANG Zhonghui.CAVLC Decoder Optimizing in H.264 Based on Dividing the Head of Code[J].Modern Electronic Technique,2007,30(19):66-68. |
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| Authors: | LI Jiangbo CHEN Maoyin WANG Zhonghui |
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| Abstract: | For the handling of real-time,if takes much time in CAVLC,H.264 will affect the handling of entire system speed.Based on analyzing the complexity of JM10.2 the code of reference decoder,it puts forward a kind of fast variable length entropy decoding method by dividing the head of code with the use of idea looked-up-by-dividing.The method has been proved to make entropy decoding four times quicker than the old one in the testing of it. |
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| Keywords: | H 264 |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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