| 基于运动补偿的自适应时域视频降噪算法研究 |
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| 引用本文： | 李岩,乔彦峰,高岩,孙志远,高丰端.基于运动补偿的自适应时域视频降噪算法研究[J].半导体光电,2007,28(5):747-750. |
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| 作者姓名： | 李岩 乔彦峰 高岩 孙志远 高丰端 |
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| 作者单位： | 中国科学院长春光学精密机械与物理研究所,光电测控部,吉林,长春,130033;中国科学院研究生院,北京,100039;中国科学院长春光学精密机械与物理研究所,光电测控部,吉林,长春,130033 |
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| 基金项目： | 中国科学院知识创新工程项目 |
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| 摘 要： | 视频信号内的噪声是信号中不希望出现的干扰部分,如果不加以有效的去除,会严重影响视频图像的质量.提出了一种基于运动补偿的自适应时域视频降噪算法.该方法通过运动补偿技术,在时域上跟踪并提取噪声.滤波的强度是根据物体运动轨迹上的运动强度自适应变化的.利用该算法,有效地去除了视频序列中的噪声,同时很好地保护了图像的细节.实验结果表明,采用该降噪算法处理后的视频图像质量明显优于采用空域的降噪方法的结果.
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| 关 键 词： | 运动补偿 自适应时域滤波 运动强度检测 |
| 文章编号： | 1001-5868（2007）05-0747-04 |
| 修稿时间： | 2006-11-21 |
An Adaptive Temporal Filter Based on Motion Compensation for Video Noise Reduction |
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| LI Yan,QIAO Yan-feng,GAO Yan,SUN Zhi-yuan,GAO Feng-duan.An Adaptive Temporal Filter Based on Motion Compensation for Video Noise Reduction[J].Semiconductor Optoelectronics,2007,28(5):747-750. |
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| Authors: | LI Yan QIAO Yan-feng GAO Yan SUN Zhi-yuan GAO Feng-duan |
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| Affiliation: | 1. Photoelectricity Measurement and Control Department, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, CHN;2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, CHN |
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| Abstract: | Noise in video signals will degrades the image quality. An adaptive temporal filter based on motion compensation is proposed for noise reduction. The noise in video sequence is tracked by motion compensation in temporal domain. The filtering strength can be adaptive changed on object motion situation. The experiment results show that the proposed filter is better than the filter in spatial domain. The noise in video signals can be effectively reduced and the image will not be blurry as the result of spatial filter. |
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| Keywords: | motion compensation adaptive temporal filter motion strength detection |
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