| 基于总变分规整化的湍流退化图像复原RL算法 |
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| 引用本文： | 赵剡,张怡,许东. 基于总变分规整化的湍流退化图像复原RL算法[J]. 中北大学学报(自然科学版), 2007, 28(1): 69-73 |
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| 作者姓名： | 赵剡 张怡 许东 |
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| 作者单位： | 北京航空航天大学,仪器科学与光电工程学院,北京,100083;北京航空航天大学,仪器科学与光电工程学院,北京,100083;北京航空航天大学,仪器科学与光电工程学院,北京,100083 |
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| 摘 要： | 根据RL（Richardson-Lucy）不需要点扩散函数尺寸先验信息的优点和湍流退化模式的特点，将RL图像复原算法应用到气动光学效应退化图像的复原中．针对RL算法极易引起噪声放大和过度平滑的缺点，提出了基于总变分最小化的RL图像盲复原算法．仿真结果表明，该算法在噪声抑制和细节保存方面都优于非规整化的RL算法。
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| 关 键 词： | 气动光学效应 湍流退化图像 RL算法 总变分 |
| 文章编号： | 1673-3193(2007)01-0069-05 |
| 修稿时间： | 2006-06-28 |
Restoration of Turbulence-Degraded Images Based on RL Algorithm with Total Variation Regularization |
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| ZHAO Yan,ZHANG Yi,XU Dong. Restoration of Turbulence-Degraded Images Based on RL Algorithm with Total Variation Regularization[J]. Journal of North University of China, 2007, 28(1): 69-73 |
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| Authors: | ZHAO Yan ZHANG Yi XU Dong |
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| Abstract: | According to the characters of the turbulence-degraded images.Richardson-Lucy(RL) algorithm was introduced to restore aero-optics degraded images.RL algorithm is totally blind,and it does not need the information about the size of the Point-Spread Function(PSF).However this method tends to amplify the noise and result in excessive smoothing.Here,the RL algorithm with a regularizing constraint based on total variation was proposed.The simulation results show that this method can effectively remove the noise and preserve the edges of the image. |
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| Keywords: | aero-optics effects turbulence-degraded images RL algorithm total variation |
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