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为了适应实时性的要求,在目标检测及定位时对处理方法的简洁性提出了很高的要求。基于热像观瞄系统,根据观瞄的目的,介绍了一种具有一定大小的目标检测方法。根据差分图像像素特性,提出了自适应选取阈值的新方法,对目标像素的亮度和分布密度进行精确定位。这种方法充分考虑了像素的自身属性信息,便于硬件的实时处理。该方法可以达到较高的检测率。
In order to meet the requirements of real-time, the detection and positioning of the target put forward high requirements on the simplicity of the processing method. Based on the thermal imaging sight system, according to the purpose of sighting, a kind of target detection method with a certain size is introduced. According to the characteristics of differential image pixels, a new adaptive threshold method is proposed to locate the brightness and distribution density of the target pixel accurately. This method takes full account of the pixel’s own attribute information to facilitate real-time hardware processing. This method can achieve a higher detection rate.