Patent ID: 9734385
Date: 2017-08-15
CPC Classifications: G06F,G06K,H04L

Claim:
1. Computing device for processing fingerprint template data, wherein the computing device is configured for generating transformed fingerprint template data from original fingerprint minutiae template data, in which minutiae are represented at least by Cartesian or polar coordinates and an inherent minutiae direction, the computing device being configured to generate for each minutia of the original fingerprint minutiae template data corresponding mega-vicinity data, wherein the computing device for generating mega-vicinity data for a particular one minutia m comprises: a first module configured to define for the minutia m in the original fingerprint minutiae template data the corresponding mega-vicinity as a vicinity area surrounding the minutia m as the center; a second module configured to align geometrically all other minutiae inside the defined mega-vicinity with respect to the minutia m, wherein the minutia m defines the origin of a Cartesian and polar, respectively, coordinate system x-m-y, wherein the direction of the minutia m of the original fingerprint minutiae data defines the x-axis and the direction of the zero angle, respectively, of the Cartesian and polar, respectively, coordinate system; a third module configured to check for each other minutia in the original fingerprint minutiae data, if its location is within the vicinity area; and a fourth module configured to form the mega-vicinity data for the minutia m as comprising first layer data comprising all minutiae located inside the vicinity area and second layer data comprising the respective N closest neighboring minutiae around each of the minutiae in the first layer data, wherein N is a predetermined number.