Biometrics authentication device and biometrics authentication method

• US 10,019,616 B2
• Filed: 09/14/2016
• Issued: 07/10/2018
• Est. Priority Date: 03/25/2014
• Status: Active Grant

• Current Assignee: Fujitsu Frontech Limited (Fujitsu Limited)
• Original Assignee: Fujitsu Frontech Limited (Fujitsu Limited)
• Inventors: Suzuki, Tomoharu
• Primary Examiner(s): CHEN, XUEMEI G
• Application Number:
  US15/265,189
• Publication Number:
  US 20170004348A1
• Time in Patent Office: 664 Days
• Field of Search: 340 583, 382 15, 382118, 382124
• CPC Class Codes: G06F 21/32 using biometric data, e.g. fingerprints, iris scans or voiceprints
• CPC Class Codes: G06V 40/12 Fingerprints or palmprints
• CPC Class Codes: G06V 40/1347 Preprocessing; Feature extraction
• CPC Class Codes: G06V 40/1359 Extracting features related to ridge properties; Determining the fingerprint type, e.g. whorl or loop
• CPC Class Codes: G06V 40/1365 Matching; Classification
• CPC Class Codes: G06V 40/1388 using image processing
• CPC Class Codes: G06V 40/14 Vascular patterns
• CPC Class Codes: H04L 9/3231 Biological data, e.g. fingerprint, voice or retina network architectures or network communication protocols for supporting authentication of entities using biometrical features in a packet data network H04L63/0861

Abstract

A biometrics authentication device is configured so as to include: a filter that extracts a plurality of directional features from an input image; a per-direction directional feature normalization processing unit that normalizes the plurality of directional features extracted by the filter; a non-directional feature generating unit that generates a non-directional feature on the basis of the plurality of directional features output from the per-direction directional feature normalization processing unit; a matching processing unit that determines a degree of similarity between the non-directional feature and a registered non-directional feature stored in a storing unit; and a determining unit that determines identity by using the degree of similarity.

Claims

1. A biometrics authentication device comprising:

a filter that extracts a plurality of directional features from an input image;

a per-direction directional feature normalization processing unit that normalizes, by a computer, the plurality of directional features so as to make a luminance value that corresponds to a palm print smaller than a luminance value that corresponds to a vein;

a non-directional feature generating unit that generates, by the computer, a non-directional feature on the basis of the plurality of directional features output from the per-direction directional feature normalization processing unit;

a matching processing unit that determines, by the computer, a degree of similarity between the non-directional feature and a registered non-directional feature stored in a storing unit; and

a determining unit that determines, by the computer, identity by using the degree of similarity.

2. A biometrics authentication method comprising:

extracting, by a computer, a plurality of directional features from an input image;

normalizing, by the computer, the extracted plurality of directional features so as to make a luminance value that corresponds to a palm print smaller than a luminance value that corresponds to a vein;

generating, by the computer, a non-directional feature on the basis of the normalized plurality of directional features;

determining, by the computer, a degree of similarity between the non-directional feature and a registered non-directional feature stored in a storing unit; and

determining, by the computer, identity by using the degree of similarity.

3. A non-transitory computer-readable recording medium which records a program for causing a computer to execute a process comprising:

extracting a plurality of directional features from an input image;

normalizing the extracted plurality of directional features so as to make a luminance value that corresponds to a palm print smaller than a luminance value that corresponds to a vein;

generating a non-directional feature on the basis of the normalized plurality of directional features;

determining a degree of similarity between the non-directional feature and a registered non-directional feature stored in a storing unit; and

determining identity by using the degree of similarity.