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US 9,542,543 B2Granted
Biometric authentication device, biometric authentication method and computer readable, non-transitory medium
AssigneeFujitsu Limited
InventorKoichiro Niinuma
Life of this patent
Estimating the term…
Abstract
A biometric authentication device including: a data-for-matching generation portion generating a data for matching from biometric information; an update-demand determine portion determining whether a registered data registered for matching with the data for matching needs updating or not, based on a difference between biometric quality of the registered data and biometric quality of the data for matching; and a registered data replace portion replacing the registered data by a generated data for updating, according to a determination result of the update-demand determine portion.
Claims9
A biometric authentication device comprising:
- a storage comprising:
- a first storage region configured to store a registered biometric authentication data;
- a second storage region configured to store a data for updating the registered biometric authentication data;
- a third storage region configured to store quality information of the registered biometric authentication data and quality information of a first biometric data for matching that is generated at a first time point by a biometric sensor of a user for matching with the registered biometric authentication data for biometric authentication;
- and
- a fourth storage region configured to store first information that the first biometric data for matching should be stored by the second storage region or second information that the first biometric data for matching should not be stored by the second storage region, and
- a processor configured to execute a process, the process comprising:
- referring to the third storage region;
- calculating a quality difference between the quality information of the registered biometric authentication data and the quality information of the first biometric data for matching;
- changing the second information to the first information when the quality difference is equal to or more than a first threshold, the fourth storage region storing the second information;
- changing the first information to the second information when the quality difference is equal to or less than a second threshold, the fourth storage region storing the first information where the first threshold and the second threshold are different;
- performing a matching process between the registered biometric authentication data and a second biometric data for matching that is generated at a second time point, after the first time point, by the biometric sensor of the user for matching with the registered biometric authentication data for biometric authentication;
- storing the second biometric data for matching in said second storage region as the data for updating the registered biometric authentication data when the matching process is succeeded and the fourth storage region stores the first information;
- and
- updating the registered biometric authentication data using the data for updating the registered biometric authentication data.
12 more elements
A biometric authentication method comprising:
- storing a registered biometric authentication data in a first storage region of a storage;
- storing a data for updating the registered biometric authentication data in a second storage region of the storage;
- storing quality information of the registered biometric authentication data and quality information of a first biometric data for matching that is generated at a first time point by a biometric sensor of a user for matching with the registered biometric authentication data for biometric authentication, in a third storage region of the storage;
- storing a first information that the first biometric data for matching should be stored by the second storage region or second information that the first biometric data for matching should not be stored by the second storage region, in a fourth storage region;
- referring to the third storage region;
- calculating a quality difference between the quality information of the registered biometric authentication data and the quality information of the first biometric data for matching;
- changing the second information to the first information when the quality difference is equal to or more than a first threshold and the fourth storage region stores the second information;
- changing the first information to the second information when the quality difference is equal to or less than a second threshold and the fourth storage region stores the first information where the first threshold and the second threshold are different;
- performing a matching process between the registered biometric authentication data and a second biometric data for matching that is generated at a second time point, after the first time point, by the biometric sensor of a user for matching with the registered biometric authentication data for biometric authentication;
- storing the second biometric data for matching in said second storage region as the data for updating the registered biometric authentication data when the matching process is succeeded and the fourth storage region stores the first information;
- and
- updating the registered biometric authentication data using the data for updating the registered biometric authentication data.
9 more elements
A computer readable, non-transitory medium storing a program that causes a computer to execute a process, the process comprising:
- storing a registered biometric authentication data in a first storage region of a storage;
- storing a data for updating the registered biometric authentication data in a second storage region of the storage;
- storing quality information of the registered biometric authentication data and quality information of a first biometric data for matching that is generated at a first time point, by a biometric sensor of a user for matching with the registered biometric authentication data for biometric authentication, in a third storage region of the storage;
- storing a first information that the first biometric data for matching should be stored by the second storage region or second information that the first biometric data for matching should not be stored by the second storage region, in a fourth storage region;
- referring to the third storage region;
- calculating a quality difference between the quality information of the registered biometric authentication data and the quality information of the first biometric data for matching;
- changing the second information to the first information when the quality difference is equal to or more than a first threshold and the fourth storage region stores the second information;
- changing the first information to the second information when the quality difference is equal to or less than a second threshold and the fourth storage region stores the first information where the first threshold and the second threshold are different;
- performing a matching process between the registered biometric authentication data and a second biometric data for matching that is generated at a second time point, after the first time point, by the biometric sensor of a user for matching with the registered biometric data for biometric authentication;
- storing the second biometric data for matching in said second storage region as the data for updating the registered biometric authentication data when the matching process is succeeded and the fourth storage region stores the first information;
- and
- updating the registered biometric authentication data using the data for updating the registered biometric authentication data.
9 more elements
Dependencies are inferred from the claim text.