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| 一种用于H.264的快速多块类型运动估计算法 | |
| 引用本文： | 颜洪奎,沈燕飞,朱珍民,肖建华.一种用于H.264的快速多块类型运动估计算法[J].计算机应用,2008,28(7):1898-1900. |
| 作者姓名： | 颜洪奎 沈燕飞 朱珍民 肖建华 |
| 作者单位： | 1. 中国科学院,计算技术研究所,北京,100080;湘潭大学,信息工程学院,湖南,湘潭,411105 2. 中国科学院,计算技术研究所,北京,100080 3. 湘潭大学,信息工程学院,湖南,湘潭,411105 |
| 摘 要： | 针对H.264在多块运动估计中全搜索算法的计算复杂度高的问题，提出了一种基于图像的空间频率特性来预测运动估计的宏块划分的算法。实验结果表明，该算法在保证图像质量和码率的情况下显著地减少了运动估计计算复杂度的24%~53%。 |
| 关 键 词： | H.264 运动估计 空间频率特性 |
| 收稿时间： | 2008-01-18 |
| 修稿时间： | 2008-03-10 |
Rapid algorithm of multi-block motion estimation for H.264 |
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| YAN Hong-kui,SHEN Yan-fei,ZHU Zhen-min,XIAO Jian-hua.Rapid algorithm of multi-block motion estimation for H.264[J].journal of Computer Applications,2008,28(7):1898-1900. | |
| Authors: | YAN Hong-kui SHEN Yan-fei ZHU Zhen-min XIAO Jian-hua |
| Affiliation: | YAN Hong-kui1,2,SHEN Yan-fei1,ZHU Zhen-min1,XIAO Jian-hua2(1.Institute of Computer Technology,Chinese Academy of Sciences,Beijing 100080,China,2.College of Information Engineering,Xiangtan University,Xiangtan Hunan 411105,China) |
| Abstract: | The full search algorithm of H.264 multi-block motion estimation is highly time-consuming. The paper proposed a new multi-block algorithm by speculating motion estimation based on the characteristic of the image's spatial frequency. The results of the experiments show that our algorithm evidently reduces the complexity of motion estimation computing under the condition of keeping good image quality and high bit rate. |
| Keywords: | H 264 motion estimation spatial frequency characteristic |
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