To register the images which are simultaneously distorted by blur degradation and geometric transformation

we propose a new registration method based on the mixture of blurring and geometric invariant and of the orthogonal Legendre moment.It constructs a new set of combined blur and geometric invariants of Legendre moment as feature descriptor to establish the correspondence of feature points between images which are extracted by Harris-Laplace detector.Then

with the help of the correspondence above

transformation parameters are estimated and finally the distorted images can be aligned through interpolation.The experimental results show that our method can efficiently register the distorted images with better performance than the other methods in the literature.