Face authentication to mitigate spoofing

A method to authenticate a user comprising:

• starting an authentication session;
• providing an electronic prompt to request the user to perform a sequence of one or more position requests, each position request defined by a specific change in pitch and yaw;
• capturing a sequence of images of the user performing the sequence of one or more position requests based on the pitch and yaw movements;
• generating a series of face signatures for the sequence of images of the user performing the sequence of one or more position requests;
• comparing the generated series of face signatures to stored face signatures corresponding to the requested sequence of the one or more position requests;
• authenticating the user as being a human user as a first authentication step;
• triggering the image capture device to capture at least one additional image of the user;
• verifying the identity of the user as being an authorized user based on the at least one additional image of the user as a second authentication step;
• and
• storing the at least one additional image of the user in a data storage as an audit trail in an encrypted format.

A method to authenticate a user comprising:

• providing an electronic prompt to request the user to perform a sequence of one or more position requests, the sequence to mitigate the ability of someone to hold up a video in order to mimic the request and act as an impostor;
• capturing a sequence of images of the user performing the sequence of one or more position requests, the sequence of images capturing pitch and yaw movements of the user;
• generating a series of face signatures for the sequence of images of the user performing the sequence of one or more position requests;
• comparing the generated series of face signatures to stored face signatures corresponding to the requested sequence of the one or more position requests;
• authenticating the user as being a human user as a first authentication step;
• triggering the image capture device to capture at least one additional image of the user;
• and
• storing the at least one additional image of the user in a data storage as an audit trail in an encrypted format.

A method to authenticate a user comprising:

• periodically providing an electronic prompt to request the user to perform a sequence of one or more position requests, each position request defined by a change in pitch and yaw;
• capturing the a sequence images of the user performing the sequence of one or more position requests;
• generating a series of face signatures for the sequence of images of the user performing the sequence of one or more position requests;
• comparing the generated series of face signatures to stored face signatures corresponding to the requested sequence of the one or more position requests;
• upon verifying the identity of the user as being an authorized user, storing the generated series of face signatures as additional stored face signatures for subsequent authentication sessions.