| 伪Zernike矩在低信噪比红外目标检测中的应用 |
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| 引用本文： | 杜天军,黄自力,高升久. 伪Zernike矩在低信噪比红外目标检测中的应用[J]. 光学技术, 2007, 33(6): 938-941 |
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| 作者姓名： | 杜天军 黄自力 高升久 |
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| 作者单位： | 西南技术物理研究所,成都,610041;西南技术物理研究所,成都,610041;西南技术物理研究所,成都,610041 |
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| 摘 要： | 由于探测器本身固有的特性以及军事上的极限使用要求,红外图像普遍存在目标-背景间对比度较差、目标边缘模糊和噪声较大等特点,采用常规模板匹配、Hu矩方法难以取得理想的检测效果。针对低信噪比红外目标图像,分析了伪Zernike矩的基本原理、不变性和计算方法,提出了低信噪比红外目标检测的伪Zernike矩方法,并比较了模板匹配、Hu矩、伪Zernike矩方法的目标检测效果。理论分析和实验验证了该方法的有效性。
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| 关 键 词： | 低信噪比 红外图像 伪Zernike矩 目标检测 |
| 收稿时间： | 2006-11-24 |
Application of pseudo-Zernike moments in target detection for low-SNR infrared images |
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| DU Tian-jun,HUANG Zi-li,GAO Sheng-jiu. Application of pseudo-Zernike moments in target detection for low-SNR infrared images[J]. Optical Technique, 2007, 33(6): 938-941 |
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| Authors: | DU Tian-jun HUANG Zi-li GAO Sheng-jiu |
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| Abstract: | As inherent characters in infrared detectors and utmost military application demands,low-SNR infrared images often present bad features such as low target-background contrast,blurred edges and large noises,so traditional target recognition methods as template matching or Hu moments cannot detect target effectively.Aimed at low-SNR infrared images,the principle,invariant property and computational methods of Pseudo-Zernike moments are analyzed,and a method for low-SNR infrared target detection based on Pseudo-Zernike moments is proposed.Target recognition effects among template matching,Hu moments and Pseudo-Zernike moments are compared via experiments.Theoretical analysis and experiment results show that the proposed method is effective for low-SNR infrared target detection. |
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| Keywords: | low-SNR infrared images pseudo-Zernike moments target detection |
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