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红外图像序列运动小目标检测的预处理算法研究
引用本文:周卫祥,孙德宝,彭嘉雄.红外图像序列运动小目标检测的预处理算法研究[J].国防科技大学学报,1999,21(5):57-60.
作者姓名:周卫祥  孙德宝  彭嘉雄
作者单位:华中理工大学自动控制工程系!武汉430074(周卫祥,孙德宝),华中理工大学图像识别与人工智能研究所!武汉430074(彭嘉雄)
摘    要:就如何检测复杂背景下低信噪比的运动小目标展开讨论,提出了用空间高通滤波方法改善图像质量,达到抑制背景噪声,增强小目标的效果,随后用似然比检测理论进行目标的初步分离,接着采用邻域判决的方法实现运动目标的进一步分离,最后用图像流分析法进行目标的最终检测。实验结果表明,该算法能够对小目标甚至是点目标的运动进行可靠的检测

关 键 词:目标检测  高通滤波  似然比检测  邻域判决  图像流
收稿时间:1999/4/20 0:00:00

The Study of Preprocessing Algorithm of Small Moving Target Detection in Infrared Image Sequences
Zhou Weixiang,Sun Debao and Peng Jiaxiong.The Study of Preprocessing Algorithm of Small Moving Target Detection in Infrared Image Sequences[J].Journal of National University of Defense Technology,1999,21(5):57-60.
Authors:Zhou Weixiang  Sun Debao and Peng Jiaxiong
Institution:1.Department of Automatic Control, HUST, Wuhan, 430074;1.Department of Automatic Control, HUST, Wuhan, 430074;2.Institute of PR&AI, HUST, Wuhan, 430074
Abstract:In this paper, it is discussed how to detect the low SNR small moving target in the condition of complicated background. A space high pass filtering method is presented to improve the image quality for restraining the background noise and enhancing the small target, then the likelihood ratio detection theory is used to pick out a small number of possible moving targets and the neighborhood judging method is presented to pick out the smaller number of possible moving targets. Finally, the true target motion trajectory is detected in multi frame successive image by use of image flow analysis method. The experiment result indicates that this algorithm can reliably detect small target's motion, even the point target's.
Keywords:target detection  high pass filter  likelihood ratio detection  neighborhood judge  image flow
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