Patent Document ID: 9972106
Application ID: 14701426
Patent Status: 1

Claim One:
1. A method for constructing a fingerprint image having fingerprint features that represent personal data, image data, or document data for use in document security, the method comprising: generating a ridge map based on a blending of an orientation map with a frequency map; obtaining data to encode within the ridge map, wherein the encoded data includes variable or static data that represents the personal data, the image data, or the document data; determining at least one control parameter associated with the ridge map, wherein the at least one control parameter corresponds to a characteristic of the ridge map; adjusting the at least one control parameter to modify at least one of a phase of the ridge map, a frequency of the ridge map, a silhouette of the ridge map, a ridge thickness, a ridge brightness, and a position of at least one two-dimensional point that corresponds to a minutia of the ridge map to encode the obtained data within the ridge map; generating at least one fingerprint feature from the adjusted at least one control parameter, wherein the at least one generated fingerprint feature is embedded within the ridge map to render a constructed fingerprint image having a modified ridge map that includes the obtained data encoded therein, wherein embedding the at least one generated fingerprint feature in the ridge map includes modulating the corresponding phase, frequency, silhouette, ridge thickness, ridge brightness, or position of the at least one two-dimensional point that corresponds to the minutia; and applying the constructed fingerprint image to a physical document.