Robust subpixel image registration of different-exposed images

Proposed is a new robust image registration method that can perform subpixel image registration for different-exposed images with highly photometric distortion. In this method, phase congruency is used to eliminate the effects of illumination change and photometric distortion for image registration using the phase correlation technique. Considering the presence of non-overlapped regions owing to photometric distortion, evolutionary programming is applied to search for the accurate translation parameters. Experimental results show that the proposed method is efficient and robust against illumination change and photometric distortion.