| 基于航天TDICCD相机像移分析的PSF估计及图像复原算法研究 |
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| 引用本文： | 谢冰,焦斌亮.基于航天TDICCD相机像移分析的PSF估计及图像复原算法研究[J].宇航学报,2010,31(3). |
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| 作者姓名： | 谢冰 焦斌亮 |
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| 作者单位： | 燕山大学信息科学与工程学院,秦皇岛,066004 |
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| 基金项目： | 河北省教育厅基金资助项目 |
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| 摘 要： | 根据时间延迟积分电荷耦合器件(TDICCD)特殊的工作原理,分析了其产生像移的原因,基于对TDIC-CD像移的分析估计出模糊图像的点扩散函数(PSF)。根据TDICCD像移产生的机理,建立了图像退化的数学模型,并在功率谱均衡复原算法的基础之上提出了像移复原滤波的数学表达式,对运动模糊图像进行了半盲恢复,通过Matlab仿真证明了图像复原算法的可行性和有效性。
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| 关 键 词： | 图像复原 像移 点扩散函数PSF |
The PSF Estimation Method and Image Restoration Algorithm Based on Image-Motion Analysis of Spaceborne TDICCD Camera |
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| XIE Bing,JIAO Bin-liang.The PSF Estimation Method and Image Restoration Algorithm Based on Image-Motion Analysis of Spaceborne TDICCD Camera[J].Journal of Astronautics,2010,31(3). |
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| Authors: | XIE Bing JIAO Bin-liang |
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| Abstract: | According to the principle of time-delay-integration charge coupled device (TDICCD), the reason for the image motion is analyzed. The blurred image system point spread function (PSF) is estimated. A mathematical model for the degenerated image is established and a digital filter for the recovering image based on Power Spectrum Balance Recovery is proposed to process the signal. The Matlab simulation results show the feasibility and validity of the algorithm. |
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| Keywords: | TDICCD Matlab TDICCD Image restoration Image motion Point spread function(PSF) Matlab |
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