METHOD, TERMINAL AND SYSTEM FOR BIOMETRIC IDENTIFICATION Russian patent published in 2023 - IPC G06F18/20 G06F18/22 G06F18/40 

FIELD: biometric identification.

SUBSTANCE: biometric identification method comprises the following steps: activating the mode of searching for a human face in the terminal for biometric identification of colour images received from a video stream from one of the cameras of a stereo camera; carry out preliminary processing of images from a stereo camera and an infrared or thermal camera of the terminal; detecting and tracking a person's face in the image from one camera of the stereo camera and determining its dimensions and coordinates; searching for a person's face in an image from an infrared or thermal camera, synchronized with an image from a colour camera, and determining its size and coordinates; comparing the dimensions and coordinates of the person's face, determined for the image from the colour camera and the image from the infrared or thermal camera, and making a conclusion about presence of a person in front of the cameras; normalization of images from a stereo camera and an infrared or thermal camera and submission of them to the server, where they the images of a person's face received from the terminal are compared with the templates stored in the database, and making a conclusion about presence or absence of a match with the template; sending the person recognition results from the recognition server to the terminal.

EFFECT: increasing the level of protection against unauthorized access, increasing the speed and reliability of identification.

33 cl, 2 dwg