A New Method for Infrared Weak Small Target Enhancement Based on Image Fusion

A new method for infrared weak small target enhancement based on image fusion was presented. The structure of this method is two times fusion. In first fusion stage, the simple image fusion method is used to fuse the continuous frames. In second fusion stage, the multiscale decomposition method is used to decompose the result from first fusion stage and then fuse them. The fusion effect with different multiscale decomposition methods such as the Wavelet transform, the Contourlet transform and the Wavelet-based Contourlet transform (WBCT) is contrasted. The experimental results show that the method is effective and can enhance infrared weak small targets.