METHODS OF REGISTERING AND UPDATING BIOMETRIC TEMPLATE OF USER USING INFORMATION ON ORIENTATION OF FACE OF USER AND CORRESPONDING COMPUTER DEVICES AND DATA MEDIA Russian patent published in 2024 - IPC G06V40/50 G06V40/16 G06F21/32 

FIELD: biometric verification of users.

SUBSTANCE: method of updating a biometric template of a user using information on the orientation of the face of the user comprises: obtaining a new biometric sample, containing information on features of the face and on orientation of the user’s face; for each biometric sample of the biometric template: determining a measure of similarity by features; determining a plurality of S most similar biometric samples of the biometric template; determining, based on the new biometric sample and the plurality of S most similar biometric samples of the biometric template, the Delta value and the biometric sample to be replaced, where Delta (x, S) is the maximum change in the positive side of the average mutual balanced measure of similarity for the set S when the biometric sample is replaced with a new biometric sample x, updating the biometric template if Delta > 0.

EFFECT: possibility of updating face biometric templates with provision of mutual similarity of updated templates, their variability, resistance to attack of "template poisoning" type.

4 cl, 3 dwg