| CPC G06F 21/32 (2013.01) [G06V 10/764 (2022.01); G06V 40/1365 (2022.01); G06V 40/172 (2022.01); G06V 40/197 (2022.01); G06V 40/50 (2022.01); G06V 40/70 (2022.01); G08B 21/18 (2013.01)] | 20 Claims |

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1. A user authentication method comprising:
registering a user biometric, comprising:
receiving, first biometric information, in a first biometric modality, associated with a user at a first time;
extracting at least first biometric data from the first biometric information; and
generating a first template at least based on the first biometric data; and
enrolling the user in a system, comprising:
receiving the first biometric information associated with the user at a second time, the second time occurring after the first time;
extracting at least second biometric data from the first biometric information;
generating a second template at least based on the second biometric data;
comparing, using one or more processors and memory, the second template with the first template to generate a confidence value representing a degree of similarity therebetween; and
generating and sending, at least based on comparison of the confidence value to a threshold value, at least one of a confirmation, an electronic signal and an alert.
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