Patent ID: 9652663
Date: 2017-05-16
CPC Classifications: G06F,G06K,G06T,G07C,G09C,H04N

Claim:
1. A mobile device having a processor and memory, the mobile device being configured to perform operations comprising: receiving an indication of a request by a user to unlock the mobile device from a locked state; capturing one or more images of the face of the user as the face of the user is illuminated by a light source; extracting facial components of the user from the one or more captured images; determining whether the user is an authorized user based at least in part on a comparison of the facial components of the user extracted from the one or more captured images to facial components of the authorized user from at least one of two or more authentication images of the authorized user stored on the mobile device; unlocking the mobile device if the user is determined to be the authorized user; and maintaining the locked state of the mobile device if the user is determined not to be the authorized user, wherein the capturing includes prompting the user to make a randomly selected facial expression or head motion, and wherein the two or more authentication images include at least one authentication image of the user making the facial expression or head motion that is randomly selected.