提升红外系统探测能力的图像预处理技术

The Image Preprocessing Technology for Improving the Detecting Performance of Infrared System

首先从理论上分析了制约红外系统探测能力的几个关键因素。提出了通过改善图像SNR来提高系统探测距离的方案。然后采用图像滤波、多帧累加处理相结合的图像预处理流程,以提高图像SNR。实验表明,选取改进的回形窗滤波方法对图像做滤波,结合多帧累加处理的低信噪比红外图像预处理方案,能够有效增强图像SNR,提升红外系统的探测能力。

First of all this paper proposes a scheme to increase the system＇s detecting distance by improving image＇s SNR.And then a flow of image preprocessing combining image filtering with multi-frame accumulation is advanced with the purpose of improving image SNR.The test has proved that the low SNR infrared image preprocessing scheme,the filtering way of amended hui_formed filtering method and multi-frame accumulation algorithm,is able to improve image＇s SNR and then enhances the capability of infrared system detecting dim targets.