US Patent 8189878 Multifactor multimedia biometric authentication

A device may receive a request to authenticate a user, automatically establish a multimedia session with the user in response to receiving the request, and capture a group of biometric identifiers for the user from the multimedia session. The device may further perform a group of biometric authentication operations using the analyzed or captured biometric identifiers to obtain a group of authentication scores, determine whether the user is properly authenticated based on the group of authentication scores, and transmit a message representing the determination of whether the user is properly authenticated.