| 双边滤波直方图均衡的非均匀性校正算法 |
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| 引用本文： | 贺明,王亚弟,贺菁,陈向军,路建方,寇广,沈鹏. 双边滤波直方图均衡的非均匀性校正算法[J]. 红外与激光工程, 2013, 42(10): 2620-2624 |
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| 作者姓名： | 贺明 王亚弟 贺菁 陈向军 路建方 寇广 沈鹏 |
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| 作者单位： | 1.中国人民解放军信息工程大学,河南郑州 450002; |
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| 基金项目： | “十二五”国家科技支撑计划课题（2011BAD21B03） |
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| 摘 要： | 针对传统的红外焦平面自适应校正算法存在的目标退化和收敛时间较长等问题，提出了一种融合双边滤波机制的直方图均衡红外焦平面非均匀性自适应校正方法。研究了红外焦平面响应特性，建立红外焦平面阵列响应的统计模型，根据模型首先计算单个像元的时域统计直方图，接着融合双边滤波机制求取邻域像元时域直方图的均值，最后利用该均值直方图均衡完成非均匀性校正。实际应用证明，该算法具有校正精度高、收敛速度快、抑止目标退化能力强的优点。
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| 关 键 词： | 直方图均衡 双边滤波 红外焦平面 自适应非均匀校正 |
| 收稿时间： | 2013-02-07 |
Non-uniformity correction algorithm based on bilateral filter histogram equalization |
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| Affiliation: | 1.The PLA Information Engineering University of the PLA,Zhengzhou 450002,China;2.Lab for Infrared and Imaging Navigation Technologies,Air Defense Forces Academy,Zhengzhou 450052,China;3.Shanghai Science and Technology Development Cp,Lt,Shanghai 201821,China;4.Nanchang Military Academy,Nanchang 330000,China |
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| Abstract: | The traditional infrared focal plane adaptive correction algorithm has target degradation problem and its convergence time is too long. Aiming at this problem, infrared focal plane adaptive non-uniformity correction algorithm based on bilateral filter histogram equalization was proposed. By analyzing infrared focal plane response characteristics, a statistical model of the infrared focal plane array response was created. According to the model, a single pixel time-domain statistical histogram was calculated firstly, then bilateral filter was fused to get the mean of the neighborhood histogram, and non-uniformity correction was completed using the mean histogram equalization. According to the practical application, this algorithm has the advantage of the strong ability to eliminate the image degradation, fast convergence speed and high precision. |
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