| 基于NMF、ICA和复Contourlet变换的红外小目标检测 |
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| 引用本文： | 吴一全,纪守新,尹丹艳.基于NMF、ICA和复Contourlet变换的红外小目标检测[J].宇航学报,2011(8). |
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| 作者姓名： | 吴一全 纪守新 尹丹艳 |
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| 作者单位： | 南京航空航天大学电子信息工程学院;南京大学计算机软件新技术国家重点实验室; |
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| 基金项目： | 国家自然科学基金(60872065); 南京大学计算机软件新技术国家重点实验室开放基金(KFKT2010B17); 光电控制技术重点实验室与航空基金联合资助项目(20105152026) |
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| 摘 要： | 针对存在背景干扰和噪声情况下的红外弱小目标检测问题,提出了一种基于非负矩阵分解(NMF)、独立分量分析(ICA)和复Contourlet变换的检测方法。首先通过非负矩阵分解和独立分量分析分别抑制原始图像的背景,得到不同的小目标残差图像;接着采用复Contourlet变换对残差图像进行去噪;再对上述去噪后的小目标残差图像求和,得到了预处理图像;最后提出基于模糊灰度熵阈值选取方法分割预处理图像,从而实现了复杂背景下的红外弱小目标检测。针对红外小目标图像进行了大量实验,并与基于新型Top-hat变换、基于快速独立分量分析的目标检测方法进行了比较,结果表明所提出的方法抗噪性强,具有更为优越的检测性能。
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| 关 键 词： | 红外弱小目标检测 非负矩阵分解 独立分量分析 复Contourlet变换 模糊灰度熵 |
Infrared Small Target Detection Based on NMF,ICA and Complex Contourlet Transform |
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| WU Yi-quan,JI Shou-xin,YIN Dan-yan.Infrared Small Target Detection Based on NMF,ICA and Complex Contourlet Transform[J].Journal of Astronautics,2011(8). |
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| Authors: | WU Yi-quan JI Shou-xin YIN Dan-yan |
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| Institution: | WU Yi-quan1,2,JI Shou-xin1,YIN Dan-yan1(1.School of Electronic and Information Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China,2.State Key Laboratory for Novel Software Technology,Nanjing University,Nanjing 210093,China) |
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| Abstract: | Aimed at the detection problem of dim target in infrared image in the present of background interference and noise,a detection method based on non-negative matrix factorization(NMF),independent component analysis(ICA) and complex Contourlet transform is proposed.The background of original image is suppressed respectively by using non-negative matrix factorization and independent component analysis,and different residual images of small target are obtained.The residual images are denoised by using complex Co... |
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| Keywords: | Infrared dim target detection Non-negative matrix factorization Independent component analysis Complex contourlet transform Fuzzy gray entropy |
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