Face authentication apparatus
AssigneeNEC Corporation
InventorsTaketo KOCHI, Kenji SAITO
Life of this patent
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Abstract
A face authentication apparatus includes a face image acquisition unit, a collation unit, a time measurement unit, and a threshold change unit. The face image acquisition unit acquires a face image of an authentication target. The collation unit performs face authentication on the face image of the authentication target on the basis of a threshold. The time measurement unit measures the elapsed time from the time of starting operation of the face authentication apparatus. The threshold change unit restricts changing of the threshold to a value larger than a value determined depending on the measured elapsed time.
Claims19
A face authentication apparatus comprising:
- a memory containing program instructions;
- and
- a processor coupled to the memory, wherein the processor is configured to execute the program instructions to:
- acquire a face image of an authentication target;
- perform face authentication on the face image of the authentication target on a basis of a threshold;
- measure elapsed time from a time of starting operation of the face authentication apparatus;
- and
- restrict changing of the threshold to a value larger than a value determined depending on the elapsed time measured.
A face authentication method performed by a face authentication apparatus, the method comprising:
- acquiring a face image of an authentication target;
- performing face authentication on the face image of the authentication target on a basis of a threshold;
- measuring elapsed time from a time of starting operation of the face authentication apparatus;
- and
- restricting changing of the threshold to a value larger than a value determined depending on the elapsed time measured.
A non-transitory computer-readable medium storing a program comprising instructions for causing a computer to perform processing to:
- acquire a face image of an authentication target;
- perform face authentication on the face image of the authentication target on a basis of a threshold;
- measure elapsed time from a time of starting operation of the face authentication apparatus;
- and
- restrict chanting of the threshold to a value larger than a value determined depending on the elapsed time measured.
Dependencies are inferred from the claim text.