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| 一种H.264/AVC的自适应去块效应滤波快速算法 | |
| 引用本文： | 颜洪奎,朱珍民,沈燕飞,肖建华.一种H.264/AVC的自适应去块效应滤波快速算法[J].计算机工程与应用,2008,44(29):65-68. |
| 作者姓名： | 颜洪奎 朱珍民 沈燕飞 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. 湘潭大学,信息工程学院,湖南,湘潭,411105 3. 湖南省第一师范学校,长沙,410002 |
| 摘 要： | 去块效应滤波在H.264视频编解码中起到了很重要的作用,对H.264中去块效应滤波的理论进行了再分析,提出了一种以4×4块为单位,对帧内预测帧和帧间预测帧分别计算边缘强度(Bs)的快速去块效应滤波算法。实验仿真结果表明,该算法同时适应于编码和解码中的去块效应滤波,在有效提高去块效应滤波效率的同时不影响已有编解码的码流和图像质量。 |
| 关 键 词： | H.264/AVC 自适应去块效应滤波 4×4块 边缘强度 |
| 收稿时间： | 2007-11-20 |
| 修稿时间： | 2008-2-18 |
Fast adaptive deblocking filter algorithm for H.264/AVC |
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| YAN Hong-kui,ZHU Zhen-min,SHEN Yan-fei,Xiao Jian-hua.Fast adaptive deblocking filter algorithm for H.264/AVC[J].Computer Engineering and Applications,2008,44(29):65-68. | |
| Authors: | YAN Hong-kui ZHU Zhen-min SHEN Yan-fei Xiao Jian-hua |
| Affiliation: | 1.College of Information Engineering，Xiangtan University，Xiangtan，Hunan 411105，China 2.Institute of Computer Technology，Chinese Academy of Sciences，Beijing 100080，China 3.Hunan First Normal College，Changsha 410002，China |
| Abstract: | Deblocking filter plays a very important role in H.264.A new fast algorithm based on the principle of deblocking filter of H.264 is proposed.The edge strength of Intra frames and Inter frames are computed respectively，taking units of 4×4 block.The simulation results show that the algorithm could be applied to deblocking filter both in coding and decoding.It improves the efficiency of deblocking filter without affecting existing bitstream of encoded and decoder.It doesn’t lower the quality of image as well. |
| Keywords: | H 264/AVC |
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