| 去块效应方法的研究 |
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| 引用本文： | 唐添,王进,刘运强,余松煜.去块效应方法的研究[J].电视技术,2008,32(2):16-18,61. |
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| 作者姓名： | 唐添 王进 刘运强 余松煜 |
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| 作者单位： | 1. 上海交通大学,图像通信与信号处理研究所,上海,200030
2. 飞利浦东亚实验室,上海,200070 |
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| 摘 要： | 主要陈述了视频压缩中的去块效应方法,着重介绍了作为后处理模块的去块效应算法,主要包括空域滤波、凸集映射迭代、基于小波变换的频域滤波以及最大后验概率等方法,最后从图像质量、PSNR性能和复杂度等方面分析了算法的优缺点以及适用场合.
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| 关 键 词： | 基于块的离散余弦变换 块效应 环路滤波 后处理滤波 |
| 文章编号： | 1002-8692（2008）02-0016-03 |
| 收稿时间： | 2007-12-31 |
| 修稿时间： | 2007年12月31 |
Research on Method of Deblocking Effect |
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| TANG Tian,WANG Jin,LIU Yun-qiang,YU Song-yu.Research on Method of Deblocking Effect[J].Tv Engineering,2008,32(2):16-18,61. |
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| Authors: | TANG Tian WANG Jin LIU Yun-qiang YU Song-yu |
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| Affiliation: | TANG Tian1,WANG Jin2,LIU Yun-qiang2,YU Song-yu1 (1. Institute of Image Communication & Information Processing,Shanghai Jiao Tong University,Shanghai 200030,China,2. Philips Research East Asia,Shanghai 200070,China) |
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| Abstract: | The methods of deblocking effect in video compressing are narrated. As a post-processing module, the deblocking effect algorithm is emphatically introduced. The algorithm includes spatial domain filtering, iterative method based on projection onto convex set (POCS), frequency domain filtering based on wavelet transformation, maximizing posteriori probability method and so on. Finally, the advantages, disadvantages and applicable occasions of these algorithms are analyzed from the aspects of image quality, P... |
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| Keywords: | BDCT blocking effect in-loop filter post-processing filter |
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