CHENG Gang, ZHU Hui, ZHANG Yong, WANG Qing-quan. Adaptive algorithm for small target detection in infrared searching system[J]. Journal of Applied Optics, 2010, 31(1): 128-131.
Citation: CHENG Gang, ZHU Hui, ZHANG Yong, WANG Qing-quan. Adaptive algorithm for small target detection in infrared searching system[J]. Journal of Applied Optics, 2010, 31(1): 128-131.
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Adaptive algorithm for small target detection in infrared searching system

  • Xi’an Institute of Applied Optics,Xi’an 710065,China

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  • Aiming at the small object detection in infrared searching system, a novel algorithm of adaptive spatial filtering is proposed on the basis of the model analysis of infrared images. The background residual errors are calculated in the algorithm while the background is estimated, and the filtering parameters are adjusted to adapt to the fluctuation of the background according to the values of the residual errors. The multi-scale morphology operator is used in the algorithm. This method is suitable to the infrared small object detection in clutter background, and can reserve the information of objects totally. The method is run on the platform of FPGA, and used in an infrared searching system. The experiment results presented in this paper show that the signal-to-noise ratio (SNR) of the processed images can reach to 3 even if the scene is complex and SNR is low. It has a good result on real-time processing and is easy to be realized in engineering.
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  • ［1］汪国有， 陈振学，李乔亮.复杂背景下红外弱小目标检测的算法研究综述［J］.红外技术，2006，28(5)：287-292.
    WANG Guo-you, CHENG Zhen-xue, LI Qiao-liang. A review of infrared weak and small targets detecting under complicated background［J］.J.Infrared Technology,2006,28(5):287-292. (in Chinese with an English abstract)
    ［2］宗思光,王江安.多量级多向梯度海空复杂背景红外弱点目标检测［J］.应用光学, 2005,26(5):25-28.
    ZONG Si-guang, WANG Jiang-an. Detection based on multi-degree and orientation gradient fusion for weak infrared dot-objects［J］.Journal of Applied Optics, 2005, 26(5):25-28. (in Chinese with an English abstract)
    ［3］WANG D, HAESE-COAST V, BRUNO A, et al. Some statistical properties of mathematical morphology［J］. J. IEEE Trans. On Signal Processing,1995,43(3):1955-1965.
    ［4］朱红，赵亦工.基于背景自适应预测的红外弱小运动目标检测［J］.红外与毫米波学报，1999，18(4):305-310.
    ZHU Hong，ZHAO Yi-gong. Detection of weak and small moving infrared targets by adaptive prediction of background［J］. Infrared Millim. Waves,1999,18(4):305-310. (in Chinese with an English abstract)
    ［5］TOM V T,PELI T,LEUNG M,et al.Morphology-based algorithm for point target detection in infrared backgrounds［J］.SPIE,1993,1954:2-11.
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