Seal identification based on SIFT and edge direction histogram

Abstract

For purpose of solving the imperfect problems of SIFT method those lack of edge feature detect and low identification rate, the paper propose the integration of the SIFT and edge direction histogram method, and discusses how to use edge direction histogram on the basis of the SIFT feature vector matching to product edge direction difference values further more carry out the seal identification, by the same sample database of Seal image experimental results show that the fusion algorithm enhances the identification rate to 95%.