In terms of the low ?SNR? and contrast, the small and dim targets can not be easily detected in a single IR image, so utilizing a sequence of images is an effective method.

• 红外图像中的弱小目标因为信噪比和对比度较低,用单帧图像检测很难得到满意的效果,利用多帧图像信息进行检测是有效的手段之一。