| 基于维纳滤波的红外焦平面阵列非均匀性校正算法 |
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| 引用本文： | 李庆,刘上乾,王炳健,赖睿.基于维纳滤波的红外焦平面阵列非均匀性校正算法[J].光子学报,2006,35(12):1908-1911. |
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| 作者姓名： | 李庆 刘上乾 王炳健 赖睿 |
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| 作者单位： | 西安电子科技大学技术物理学院,西安,710071;西安电子科技大学技术物理学院,西安,710071;西安电子科技大学技术物理学院,西安,710071;西安电子科技大学技术物理学院,西安,710071 |
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| 摘 要： | 充分利用红外图像的空间相关性和时间相关性,提出了一种基于维纳（Wiener）滤波的红外焦平面阵列（IRFPA）非均匀性校正算法,实现对辐射信号的无偏估计,滤波器的参量通过时域一、二阶统计结合空域平均获得,同现有的典型校正算法相比,本文算法具有收敛速度快、校正准确度高的特点,理论分析以及针对实际红外图像的实验结果表明提出的算法更具优越性.
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| 关 键 词： | 红外焦平面阵列 非均匀性校正 维纳滤波 空时域 相关性 |
| 收稿时间： | 2005-12-14 |
| 修稿时间： | 2005年12月14 |
Wiener Based Nonuniformity Correction Algorithm for IRFPA |
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| Li Qing,Liu Shangqian,Wang Bingjian,Lai Rui.Wiener Based Nonuniformity Correction Algorithm for IRFPA[J].Acta Photonica Sinica,2006,35(12):1908-1911. |
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| Authors: | Li Qing Liu Shangqian Wang Bingjian Lai Rui |
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| Institution: | School of Technical Physics,Xidian University,Xi′an 710071 |
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| Abstract: | Using the space relativity and the time relativity of infrared image fully,a Wiener based nonuniformity correction algorithm for IRFPA was proposed. Then the unbiased estimation of radiation signal can be achieved. The filter's parameters were estimated by first-and second-order statistics in timedomain and average in space-domain. As compared with recent typical algorithm,this algorithm has faster rapidity of convergence and higher precision of correction. The theoretical analysis and the experiment with real infrared data show that the proposed algorithm has advantage over others. |
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| Keywords: | IRFPA Nonuniformity correction Wiener filtering Space-time domain Relativity |
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