A New Pre-processing Method for Infrared Images Based on Image Fusion

A new IR (infrared) image pre-processing approach based on image fusion is presented in this paper. Through analyzing the noises types of IR image, this paper produces an alpha-trimmed mean filter for suppressing mixed noises and rapid Sobel edge detector for enhancing the target's edge. Then it uses simple weight average method to fuse the treated IR image. Simulation shows that this method is applicable for real-time IR images enhancement and beneficial to target recognition.