Abstract: In order to solve the image registration problem of different sensors under different view obtained at different time,a novel image registration algorithm based on straight-lines was presented in this paper.Firstly,we transformed the straight lines in the image space into points in the Hough parameter space by using Hough transform.Then we proposed an approach that simultaneously determines the correspondences between the points and solves for the parameters involved in the registration transformation function in Hough space.Experiments were conducted on real-world images.The experimental results reveal that the algorithm is robust and efficient for most images with rich line features.

Key words: Image registration,Line log-polar parameter hough transform,RST transform