Terminal apparatus, biometric authentication method, and computer-readable storage medium

Patent metadata

Field	Value
Publication number	US-2016275334-A1
Application number	US-201615064855-A
Country	US
Kind code	A1
Filing date	Mar 9, 2016
Priority date	Mar 16, 2015
Publication date	Sep 22, 2016
Grant date	—

Abstract

A terminal apparatus includes an information input device that detects a coordinate value of an input operation position touched by a user, a biometric sensor that captures a capture area of a palm of the user at a time of an input operation to the information input device, to generate biometric data, and a processor. The processor performs a process including matching the biometric data to a corresponding portion of registered biometric data registered in advance and read based on the coordinate value, to compute a similarity of the biometric data to the corresponding portion.

First claim

What is claimed is:

1 . A terminal apparatus comprising:
an information input device that detects a coordinate value of an input operation position touched by a user; a biometric sensor that captures a capture area of a palm of the user at a time of an input operation to the information input device, to generate biometric data; and a processor that performs a process including
matching the biometric data to a corresponding portion of registered biometric data registered in advance and read based on the coordinate value, to compute a similarity of the biometric data to the corresponding portion.

2 . The terminal apparatus as claimed in claim 1 , wherein
the process further includes setting a corresponding relationship for converting a first coordinate system on the information input device into a second coordinate system of the registered biometric data, the terminal apparatus further comprises:
a registration database including the registered biometric data of the palm of the user captured in a registration area wider than the capture area, and a coordinate value of the registered biometric data in the second coordinate system, and
the matching recognizes a coordinate value of the corresponding portion of the registered biometric data in the second coordinate system, from the coordinate value at a point in time when the biometric data is captured, converted from the first coordinate system into the second coordinate system based on the corresponding relationship, and reads the corresponding portion from the registration database.

3 . The terminal apparatus as claimed in claim 2 , wherein the setting includes receiving the biometric data, the coordinate value in the first coordinate system at the point in time when the biometric data is captured, and the coordinate value of the registered biometric data in the second coordinate system, to set the corresponding relationship between the coordinate value in the first coordinate system and the coordinate value of the registered biometric data in the second coordinate system.

4 . The terminal apparatus as claimed in claim 1 , wherein the information input device and the biometric sensor are arranged at relative positions so that at least a portion of the palm of the user is captured by the biometric sensor when the user operates the information input device by a finger.

5 . The terminal apparatus as claimed in claim 1 , further comprising:
a touchscreen panel integrally including a display device and the information input device.

6 . The terminal apparatus as claimed in claim 1 , wherein
the process further includes extracting features of a biometric image captured by the biometric sensor, to output the biometric data, and the matching matches the features of the biometric image to a corresponding portion of features of the registered biometric image included in the registered biometric data.

7 . A non-transitory computer-readable storage medium having stored therein a program for causing a computer to execute a process comprising:
acquiring a coordinate value of an input operation position touched by a user, detected by an information input device, and biometric data of a capture area of a palm of the user captured by a biometric sensor at a time of an input operation to the information input device; and matching the biometric data to a corresponding portion of registered biometric data registered in advance and read based on the coordinate value, to compute a similarity of the biometric data to the corresponding portion.

8 . The non-transitory computer-readable storage medium as claimed in claim 7 , wherein the process further comprises:
setting a corresponding relationship for converting a first coordinate system on the information input device into a second coordinate system of the registered biometric data, wherein the matching recognizes a coordinate value of the corresponding portion of the registered biometric data in a second coordinate system, from the coordinate value at a point in time when the biometric data is captured, converted from a first coordinate system into the second coordinate system based on the corresponding relationship, and reads the corresponding portion from a registration database including the registered biometric data of the palm of the user captured in a registration area wider than the capture area, and a coordinate value of the registered biometric data in the second coordinate system.

9 . The non-transitory computer-readable storage medium as claimed in claim 8 , wherein the setting includes receiving the biometric data, the coordinate value in the first coordinate system at the point in time when the biometric data is captured, and the coordinate value of the registered biometric data in the second coordinate system, to set the corresponding relationship between the coordinate value in the first coordinate system and the coordinate value of the registered biometric data in the second coordinate system.

10 . A biometric authentication method comprising:
detecting, by an information input device, a coordinate value of an input operation position touched by a user; capturing, by a biometric sensor, a capture area of a palm of the user at a time of an input operation to the information input device, to generate biometric data; and matching, by a processor, the biometric data to a corresponding portion of registered biometric data registered in advance and read based on the coordinate value, to compute a similarity of the biometric data to the corresponding portion.

11 . The biometric authentication method as claimed in claim 10 , further comprising:
setting, by the processor, a corresponding relationship for converting a first coordinate system on the information input device into a second coordinate system of the registered biometric data, wherein the matching recognizes a coordinate value of the corresponding portion of the registered biometric data in a second coordinate system, from the coordinate value at a point in time when the biometric data is captured, converted from a first coordinate system into the second coordinate system based on the corresponding relationship, and reads the corresponding portion from a registration database including the registered biometric data of the palm of the user captured in a registration area wider than the capture area, and a coordinate value of the registered biometric data in the second coordinate system.

12 . The biometric authentication method as claimed in claim 11 , wherein the setting includes receiving the biometric data, the coordinate value in the first coordinate system at the point in time when the biometric data is captured, and the coordinate value of the registered biometric data in the second coordinate system, to set the corresponding relationship between the coordinate value in the first coordinate system and the coordinate value of the registered biometric data in the second coordinate system.

Assignees

• Fujitsu Ltd

Inventors

• Hama Soichi
• Abiko Yukihiro
• Maeda Satoshi
• Semba Satoshi
• Nada Hajime

Classifications

• G06V40/145

  Sensors therefor · CPC title

• G06F21/32 Primary

  using biometric data, e.g. fingerprints, iris scans or voiceprints · CPC title

• G06F3/0488

  using a touch-screen or digitiser, e.g. input of commands through traced gestures · CPC title

• G06K9/00087

  Physics · mapped topic

• G06K9/00067

  Physics · mapped topic