US 12,277,804 B2
Spoof detection using catadioptric spatiotemporal corneal reflection dynamics
David Hirvonen, New York City, NY (US); and Spandana Vemulapalli, Kansas City, MO (US)
Assigned to Jumio Corporation, Sunnyvale, CA (US)
Filed by Jumio Corporation, Sunnyvale, CA (US)
Filed on May 31, 2024, as Appl. No. 18/731,038.
Application 18/731,038 is a continuation of application No. 17/471,712, filed on Sep. 10, 2021, granted, now 12,014,577.
Prior Publication US 2024/0321013 A1, Sep. 26, 2024
Int. Cl. G06V 40/40 (2022.01); G06F 21/32 (2013.01); G06T 7/00 (2017.01); G06T 7/62 (2017.01); G06V 40/18 (2022.01)
CPC G06V 40/45 (2022.01) [G06F 21/32 (2013.01); G06T 7/62 (2017.01); G06T 7/97 (2017.01); G06V 40/193 (2022.01)] 20 Claims
OG exemplary drawing
 
1. A computer-implemented method comprising:
obtaining, by an image capture device, a set of at least two images of a subject, wherein each image in the set is captured at a different corresponding preset location of the image capture device with respect to the subject;
determining, from the set of images of the subject, one or more parameters representing a set of sizes of corneal reflections of at least one object in at least one eye of the subject, wherein the set of sizes of the corneal reflections comprises at least one of areas of the corneal reflections, heights of the corneal reflections, widths of the corneal reflections, and diagonals of the corneal reflections;
determining, based on the one or more parameters, that the subject is a live person; and
in response to determining that the subject is a live person, initiating an authentication process to authenticate the subject.