| H.264编码器复杂度分析 |
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| 引用本文： | 刘进锋,王居川,徐虹.H.264编码器复杂度分析[J].宁夏工程技术,2005,4(4):337-339,342. |
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| 作者姓名： | 刘进锋 王居川 徐虹 |
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| 作者单位： | 宁夏大学,数学计算机学院,宁夏,银川,750021;银川广播电视网络有限公司,宁夏,银川,750001;宁夏经济委员会,宁夏,银川,750001 |
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| 摘 要： | 通过多组试验,具体分析了H.264的编码工具Inter预测块尺寸、Hadamard转换、率失真优化、B-帧、CABAC、搜索范围及多参考帧的编码性能与复杂度.试验表明,不同的编码工具对编码器性能的影响有较大的差异:⑴某些工具或设置对编码性能影响很小,却增加了计算的复杂度,如Inter预测块的4×4块、Hadamard转换、搜索范围大于16、参考帧多于5等.⑵适当的选择编码工具可在编码效率和计算复杂度之间取得平衡.⑶复杂的设置对低比特率视频的压缩性能提高有限,但对高比特率视频的压缩性能提高较多.
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| 关 键 词： | H.264 JM 复杂度 编码器优化 |
| 文章编号： | 1671-7244（2005）04-0337-03 |
| 收稿时间： | 06 2 2005 12:00AM |
| 修稿时间： | 2005-06-02 |
Complexity analysis of H. 264 encoder |
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| LIU Jin-feng,WANG Ju-chuan,XU Hong.Complexity analysis of H. 264 encoder[J].Ningxia Engineering Technology,2005,4(4):337-339,342. |
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| Authors: | LIU Jin-feng WANG Ju-chuan XU Hong |
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| Affiliation: | LIU Jin-feng1,WANG Ju-chuan2,XU Hong3 |
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| Abstract: | This paper analysed the H.264 encoder tools:inter block size,Hadamard transform,RD optimize,B-frame,CABAC search range and multi-reference.The experiments showed that different encoding tools had varied influence of encoding performance:first,some tools had little effect on encoding performance but greatly increased computing complexcity;second,a proper choice of encoding tools could balance the encoding performance and computing complexity;third,complex settings had limited increase in encoding performance for low bitrate application but were more useful for high bitrate application. |
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| Keywords: | H 264 JM complexity encoder optimization |
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