Patent ID: 7400749

Claim:
A method for matching biometric sensed data on an authentication server, comprising: providing a biometric image sensed by a biometric imaging device to a workstation configured to communicate with the authentication server; providing feature data relating to a plurality of non-contiguous features of template data from the authentication server to the workstation, wherein the feature data is co-ordinate data that are selected such that there is insufficient information to accurately identify the non-contiguous features; extracting characteristic data from the sensed biometric image, the characteristic data for correlation with the provided feature data; aligning the sensed biometric image within a known frame of reference relative to the template data on the basis of the provided feature data and the extracted characteristic data; extracting minutia types and minutia angles from biometric sensed data from the aligned sensed biometric image, wherein the biometric sensed data is within the known frame of reference; and providing the minutia types and minutia angles to the authentication server for authentication.