US 12,327,432 B2
Pattern recognition for face-authentication anti-spoofing
Octavio Ponce Madrigal, Mountain View, CA (US); and Patrick M. Amihood, Palo Alto, CA (US)
Assigned to Google LLC, Mountain View, CA (US)
Appl. No. 17/905,760
Filed by Google LLC, Mountain View, CA (US)
PCT Filed May 19, 2021, PCT No. PCT/US2021/033182
§ 371(c)(1), (2) Date Sep. 6, 2022,
PCT Pub. No. WO2022/245349, PCT Pub. Date Nov. 24, 2022.
Prior Publication US 2024/0221429 A1, Jul. 4, 2024
Int. Cl. G06V 40/40 (2022.01); G06F 21/32 (2013.01); G06V 40/16 (2022.01)
CPC G06V 40/40 (2022.01) [G06F 21/32 (2013.01); G06V 40/16 (2022.01)] 20 Claims
OG exemplary drawing
 
1. A method performed by a face-authentication system, the method comprising:
setting a capture rate of a camera system of the face-authentication system to be greater than a threshold for detecting a pattern associated with an operation of a display;
capturing at least one image of an object using the capture rate;
recognizing the pattern within the at least one image;
responsive to recognizing the pattern, determining that the object includes the display; and
responsive to determining that the object includes the display, preventing face authentication.