Fingerprint authentication apparatus having a plurality of fingerprint sensors and method for same
First Claim
1. A fingerprint authentication apparatus comprising:
- a first sensor configured to acquire first fingerprint data from a user;
a second sensor configured to acquire second fingerprint data that is different from the first fingerprint data; and
a control unit configured to determine whether or not to authenticate the user based on similarities obtained from the comparison of each of the first fingerprint data and the second fingerprint data with registered fingerprint data, wherein the control unit is configured to determine whether or not to authenticate the user based on a combined score that is acquired by normalizing the sum of the product of a first score and a quality value of the first fingerprint data and the product of a second score and a quality value of the second fingerprint data wherein the first score is obtained from the similarity between the acquired first fingerprint data and the registered fingerprint data and the second score is obtained from the similarity between the acquired second fingerprint data and the registered fingerprint data.
3 Assignments
0 Petitions
Accused Products
Abstract
A fingerprint authentication apparatus and method which processes fingerprint data input through a plurality of fingerprint sensors and uses the processed fingerprint data in authentication to thereby increase security and performance. The fingerprint authentication apparatus includes a first sensor configured to acquire first fingerprint data from a user; a second sensor configured to acquire second fingerprint data that is different from the first fingerprint data; and a control unit configured to determine whether or not to authenticate the user based on similarities obtained from the comparison of each of the first fingerprint data and the second fingerprint data with registered fingerprint data.
-
Citations
15 Claims
-
1. A fingerprint authentication apparatus comprising:
-
a first sensor configured to acquire first fingerprint data from a user; a second sensor configured to acquire second fingerprint data that is different from the first fingerprint data; and a control unit configured to determine whether or not to authenticate the user based on similarities obtained from the comparison of each of the first fingerprint data and the second fingerprint data with registered fingerprint data, wherein the control unit is configured to determine whether or not to authenticate the user based on a combined score that is acquired by normalizing the sum of the product of a first score and a quality value of the first fingerprint data and the product of a second score and a quality value of the second fingerprint data wherein the first score is obtained from the similarity between the acquired first fingerprint data and the registered fingerprint data and the second score is obtained from the similarity between the acquired second fingerprint data and the registered fingerprint data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 15)
-
-
9. A fingerprint authentication method comprising:
-
acquiring first fingerprint data and second fingerprint data that is different from the first fingerprint data from a user; and determining whether or not to authenticate the user based on similarities obtained from the comparison of each of the first fingerprint data and the second fingerprint data with registered fingerprint data, wherein the determining of whether or not to authenticate the user comprises; calculating a combined score by normalizing the sum of the product of a first score and a quality value of the first fingerprint data and the product of a second score and a quality value of the second fingerprint data wherein the first score is obtained from the similarity between the acquired first fingerprint data and the registered fingerprint data and the second score is obtained from the similarity between the acquired second fingerprint data and the registered fingerprint data, and, if both the first score and the second score are smaller than the first threshold or if either the first score or the second score is equal to or greater than a second threshold that is smaller than the first threshold, determining that authentication is successful when the combined score is equal to or a greater than a predetermined value. - View Dependent Claims (10, 11, 12, 13, 14)
-
Specification