舰载红外警戒系统目标图像的离群点挖掘算法

针对舰载红外警戒系统目标图像中弱小目标的检测问题,提出了一种基于离群点挖掘的目标检测算法(OBTD)。依据目标与背景在灰度分布上的不同特性,算法将弱小目标视为离群点。分割图像为一系列的子图像,计算子图像中各像素值的局部可达密度,设定阈值挖掘出离群点,得到可能的目标点。算法时间复杂度低,实时性好。试验表明,该算法能有效地检测出图像中的弱小目标,便于进一步的目标识别和跟踪。

Outlier mining algorithm of shipborne infrared search and track system target image

To resolve the problem of the dim targets detection for shipboard infrared search and track system target image,an algorithm called outlier-based targets detection(OBTD)is presented.According to the different characteristic between targets and background,dim target can be considered as outlier.Divide the origin image into small images;Calculate the local-reachable-density for every pixel;after that,the outlier can be found by setting threshold and the possible targets are obtained.The algorithm merit lie in...