Patent ID: 7840034
Filing Date: 2010-11-23
Classification: G06F,G06K,G07C

Abstract:
1. A biometric authentication method for authenticating a user by biometric information, comprising the steps of: in first equipment, obtaining biometric information of the user and using a computer to perform the steps of: extracting feature points for registration and feature point identification information for registration associated with the feature points, from the obtained biometric information; generating transformation parameters independently for the extracted feature points; mapping the each generated transformation parameter to the feature point identification information; transforming the feature points by the transformation parameters to generate transformed feature points for registration; transmitting the transformed feature points for registration from the first equipment to second equipment, and storing the transformed feature points for registration into a memory of the second equipment; in the first equipment, obtaining biometric information for authentication; extracting feature points for authentication and feature point identification information for authentication associated with the feature points, from the obtained biometric information for authentication; comparing the feature point identification information for authentication with the feature point identification information for registration to search the correspondence therebetween; mapping the transformation parameters to the feature points for authentication based on the correspondence, and transforming the feature points for authentication by the transformation parameters determined by the mapping to generate transformed feature points for authentication; transmitting the transformed feature points for authentication from the first equipment to the second equipment; and in the second equipment, verifying the received transformed feature points for authentication against the transformed feature points for registration stored in the memory, thereby to authenticate the user according to a verification result.