Patent ID: 8433920
Filing Date: 2013-04-30
Classification: G06K,H04L

Abstract:
1. A method for authenticating biometric data; comprising a processor for performing steps of the method, comprising the steps of: measuring a reliability of each bit in enrollment biometric data, wherein the reliability is measured in terms of a crossover probability of a corresponding binary symmetric channel, wherein for the crossover probability p, the reliability arranging the bits in the enrollment biometric data in a decreasing order of the reliability of each bit and associating bits with code components according to associated reliabilities; encoding the enrollment biometric data in the decreasing order to produce an enrollment syndrome; arranging the bits in the authentication biometric data in the decreasing order of the reliability of each bit and associating bits with code components according to the associated reliabilities; decoding the authentication biometric data in the decreasing order using the enrollment syndrome and a syndrome decoder and to produce an estimate of the enrollment biometric data; and generating an output signal indicating whether the estimate of the authentication biometric data is substantially the same as the enrollment biometric data.