The Log polar mapping is a rigid invariant image matching algorithm

Levenberg Marquardt Algorithm （LMA）can calculate image registration parameters with high precision， but the LMA algorithm fails when facing an image pair with intense scene variance. In this paper we propose an image registration algorithm with sensitive region introduced in LMA phase

only pixels in the manually selected sensitive region are calculated in the iteration. The algorithm is used to register five representative photos of the Shanxi South China Tiger. The experiment shows that the method is a valuable improvement to the LMA algorithm.