Abstract: Computer-readable media tangibly embodying computer-readable instructions stored in a memory and executable by a processor of a computer, wherein execution of the computer-readable instructions cause the computer processor to implement a method of encoding a fingerprint. The method comprises acquiring an image of a finger of a user; identifying a set of minutia points in the image; generating a code by a transformation of the minutia points, the transformation including: (i) creating a matrix from features of the minutia points; (ii) obtaining characteristic invariants of the matrix; and (iii) the code being formed based on the characteristic invariants of the matrix; and outputting the code in association with the user or the finger. The characteristic invariants may be the eigenvalues of the matrix.

Abstract: A method of identifying a donor of a fingerprint image exhibiting a pattern of minutiae. The method comprises deriving a donor index code and a donor match code associated with the donor fingerprint image. A database of records is accessed—each record being associated with an identity and indicative of a respective index code and a respective match code—in an attempt to identify at least one record for which the respective index code corresponds to the donor index code. Responsive to the attempt being successful, it is determined whether any of these “candidate” records includes a particular record for which the respective match code corresponds to the donor match code. Upon indeed determining that this is so for a particular record, an output is generated, such output being indicative of a conclusion that the donor of the fingerprint image has the identity associated with the particular record.

Abstract: A method of identifying a donor of a fingerprint image exhibiting a pattern of minutiae. The method comprises deriving a donor index code and a donor match code associated with the donor fingerprint image. A database of records is accessed—each record being associated with an identity and indicative of a respective index code and a respective match code—in an attempt to identify at least one record for which the respective index code corresponds to the donor index code. Responsive to the attempt being successful, it is determined whether any of these “candidate” records includes a particular record for which the respective match code corresponds to the donor match code. Upon indeed determining that this is so for a particular record, an output is generated, such output being indicative of a conclusion that the donor of the fingerprint image has the identity associated with the particular record.

Abstract: A method of identifying a donor of a fingerprint image exhibiting a pattern of minutiae. The method comprises deriving a donor index code and a donor match code associated with the donor fingerprint image. A database of records is accessed—each record being associated with an identity and indicative of a respective index code and a respective match code—in an attempt to identify at least one record for which the respective index code corresponds to the donor index code. Responsive to the attempt being successful, it is determined whether any of these “candidate” records includes a particular record for which the respective match code corresponds to the donor match code. Upon indeed determining that this is so for a particular record, an output is generated, such output being indicative of a conclusion that the donor of the fingerprint image has the identity associated with the particular record.

Abstract: A method, system and computer readable-storage medium for generating an identification code from a fingerprint image exhibiting a plurality of features. The method includes establishing a reference point from the plurality of features, generating at least one metric from the reference point and at least one of the plurality of features and forming the identification code from the at least one metric. Changes in the temperature and humidity of a finger when the image is taken at different times will result in minor variations of the measured features which, upon quantization, result a metric that is invariant from one fingerprint image to the next, for the same finger. This lowers the false rejection rate to an acceptable level. Meanwhile, the metric is sufficiently unique for a given set of features such that the probability of assigning the same metric to two different fingers is lowered to an acceptable level.

Abstract: A method, system and computer readable-storage medium for generating an identification code from a fingerprint image exhibiting a plurality of features. The method includes establishing a reference point from the plurality of features, generating at least one metric from the reference point and at least one of the plurality of features and forming the identification code from the at least one metric. Changes in the temperature and humidity of a finger when the image is taken at different times will result in minor variations of the measured features which, upon quantization, result a metric that is invariant from one fingerprint image to the next, for the same finger. This lowers the false rejection rate to an acceptable level. Meanwhile, the metric is sufficiently unique for a given set of features such that the probability of assigning the same metric to two different fingers is lowered to an acceptable level.