Patent Document ID: 9886619
Application ID: 14902288
Patent Status: 1

Claim One:
1. A fingerprint identification method based on fuzzy feature point information, comprising the following steps: S 1 , obtaining a fingerprint template based on the fuzzy feature point information and a scene fingerprint; S 4 , comparing the scene fingerprint with the fingerprint template based on the fuzzy feature point information; the fingerprint template based on the fuzzy feature point information comprises: multiple pieces of fuzzy feature point information established based on a part of feature point information of a template fingerprint, and the multiple pieces of fuzzy feature point information are insufficient to restore the template fingerprint; and the fuzzy feature point information comprises registration information and comparison information, registration information comprises a horizontal coordinate, a vertical coordinate and an attribute of the fuzzy feature point information, the comparison information includes the value of a polynomial P(X i )=C 0 +C 1 X i +C 2 X i 2 +. .. +C n X i n , n is an order of the polynomial, X i is a numerical value obtained by quantifying one or multiple pieces of feature point information except the registration information in the feature point information, and C 0 -C n are coefficients having a preset rule; and the step S 4 comprises: substituting the corresponding feature point information of the scene fingerprint into the polynomial, calculating the values of C 0 -C n , judging whether the calculated C 0 -C n meet the preset rule, if the judgment result is yes, the scene fingerprint is matched with the fingerprint template based on the fuzzy feature point information, and if the judgment result is no, the scene fingerprint is not matched with the fingerprint template based on the fuzzy feature point information.