| 凝视观测图像空间弱小目标检测方法 |
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| 引用本文： | 王鲲鹏,马超伟,侯旺,王东亚.凝视观测图像空间弱小目标检测方法[J].应用光学,2014,35(4):614-618. |
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| 作者姓名： | 王鲲鹏 马超伟 侯旺 王东亚 |
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| 作者单位： | 1.北京跟踪与通信技术研究所,北京 100094; |
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| 基金项目： | 国家部委资助项目(2013CB733100) |
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| 摘 要： | 针对凝视观测模式下光测图像中弱小目标的检测问题，提出一种多帧频域特征累积的目标检测方法。利用恒星匹配、临帧差分等方法消除背景变化的影响，通过图像时频域特征分析，推导出递归形式频域特征累积方程，并由此检测图像中的弱小目标。实验结果表明采用多帧频域特征累积方法能将图像信噪比提高3倍以上，有利于检测出弱小目标。
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| 关 键 词： | 凝视观测 目标检测 背景消除 时频分析 |
| 收稿时间： | 2014/3/14 |
Space object detection method for observation image in stare mode |
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| Wang Kun-peng,Ma Chao-wei,Hou Wang,Wang Dong-ya.Space object detection method for observation image in stare mode[J].Journal of Applied Optics,2014,35(4):614-618. |
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| Authors: | Wang Kun-peng Ma Chao-wei Hou Wang Wang Dong-ya |
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| Affiliation: | 1.Beijing Institute of Tracking and Telecommunications Technology,Beijing 100094,China;2.School ofInformation and Electronics,Beijing Institute of Technology,Beijing 100081,China;3.College of AerospaceScience and Engineering,National University of Defense Technology,Changsha 410073,China |
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| Abstract: | Aiming at the problem of tiny object detection in stare observation image sequence, a new method based on frequency feature accumulation was proposed. First, star matching and difference of neighbor frames were used to eliminate background of images, and then by analyzing time-frequency feature, the method for accumulating frequency feature of image was applied in tiny object detection. The experiment shows that the method proposed can increase the signal-noise ratio (SNR) of image by 3 times, and favors tiny object detection. |
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| Keywords: | stare mode object detection background elimination time-frequency analysis |
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