The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 25, 2019
Filed:
May. 31, 2017
Facebook, Inc., Menlo Park, CA (US);
Donald Kinhang Wong, Palo Alto, CA (US);
Rajesh Janakiraman, Sunnyvale, CA (US);
Facebook, Inc., Menlo Park, CA (US);
Abstract
Disclosed herein are techniques for face-based user authentication. In one embodiment, a method includes receiving a sequence of image frames captured of a face of a subject, and calculating, for each image frame in a set of image frames from the sequence of image frames, a closity value for the image frame based upon a plurality of angles associated with an eye in the image frame. The closity value calculated for the image frame is indicative of a measure of closeness of the eye in the image frame. The method further includes determining a number of eye blinks occurring in the set of image frames based upon the closity values calculated for the set of image frames, determining liveness of the face of the subject based upon the number of eye blinks, and enabling authentication of the subject based upon the liveness determination.