| 消随机媒质退化的复原处理 |
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| 引用本文： | 冯保红,陈书海,文开章,冯保东,赵三军,薛西民. 消随机媒质退化的复原处理[J]. 光子学报, 2003, 32(9): 1133-1137 |
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| 作者姓名： | 冯保红 陈书海 文开章 冯保东 赵三军 薛西民 |
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| 作者单位： | 西北核技术研究所,西安,710024 |
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| 摘 要： | 对于遭受随机媒质退化的成像,需要用统计方法和功率谱模型实施复原处理.首先探讨了统计模型的大气光学传递函数(OTF);其次,在等功率谱的假定下,用功率谱维纳(Wiener)滤波器进行复原处理;然后,使用局部统计算法作乘法性噪声滤波的复原,获得了满意的图像复原结果.
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| 关 键 词： | 图像复原 调制传递函数 大气扰动 Wiener滤波 功率谱 |
| 收稿时间： | 2002-09-24 |
| 修稿时间： | 2002-09-24 |
The Restoration Processing for Degradation Caused by Random Medium |
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| Feng Baohong,Chen Shuhai,Wen Kaizhang,Feng Baodong,Zhao Sanjun,Xue Ximin. The Restoration Processing for Degradation Caused by Random Medium[J]. Acta Photonica Sinica, 2003, 32(9): 1133-1137 |
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| Authors: | Feng Baohong Chen Shuhai Wen Kaizhang Feng Baodong Zhao Sanjun Xue Ximin |
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| Affiliation: | Northwest Institute of Nuclear Technology, Xi′an 710024 |
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| Abstract: | Statistic approaches and power spectrum modeling are adopted to restore the images degraded by random medium. Atmospheric optical transfer function(OTF) based on statistic model is discussed first. And power spectrum Wiener filtering is used to proceed the restoration on the assumption that the power spectrum is equivalent. Finally, the local statistic algorithm is used to filter multiplicative noise. Both of these two methods can get satisfactory restoration results. |
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| Keywords: | Image restoration Modulate transfer function Atmospheric disturbance Wiener filter Power spectrum |
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