Efficient biometric authentication using narrowed biometric data
AssigneeFujitsu Limited
InventorShigefumi Yamada
Life of this patent
Estimating the term…
Abstract
A biometric authentication device includes: a biometric sensor that obtains biometric information; a memory; and a circuitry configured to: select an objective user according to density of a predetermined range including a comparison-use part data that is a part of a comparison-use feature data extracted from the biometric information in a class of a registered part data that is a part of a registered feature data; and perform comparing between a registered feature data of a selected objective user and the comparison-use feature data.
Claims17
A biometric authentication device comprising:
- a biometric sensor that obtains biometric information;
- a memory;
- and
- a circuitry configured to:
- select an objective user according to density of distribution of registered part data within a predetermined range in a set of the registered part data, the predetermined range including a comparison-use part data that is a part of a comparison-use feature data extracted from the biometric information, the registered part data being a part of a registered feature data;
- and
- perform comparing between a registered feature data of a selected objective user and the comparison-use feature data.
A biometric authentication method comprising:
- selecting an objective user according to density of distribution of registered part data within a predetermined range in a set of the registered part data, the predetermined range including a comparison-use part data that is a part of a comparison-use feature data extracted from the biometric information obtained by a biometric sensor, the registered part data being a part of a registered feature data;
- and
- performing a comparing between a registered feature data of a selected objective user and the comparison-use feature data.
A computer readable, non-transitory medium storing a program that causes a computer to execute a process, the process comprising:
- selecting an objective user according to density of distribution of registered part data within a predetermined range in a set of the registered part data, the predetermined range including a comparison-use part data that is a part of a comparison-use feature data extracted from biometric information obtained by a biometric sensor, the registered part data being is a part of a registered feature data;
- and
- performing comparing between a registered feature data of a selected objective user and the comparison-use feature data.
Dependencies are inferred from the claim text.