US 12,154,378 B2
Techniques for detecting a three-dimensional face in facial recognition
Amit Rozner, Yehud (IL); Lior Kirsch, Ramat-Gan (IL); Tamar Boué, Petah Tikva (IL); and Yohay Falik, Petah Tiqwa (IL)
Assigned to Tyco Fire & Security GmbH, Neuhausen am Rheinfall (CH)
Filed by Tyco Fire & Security GmbH, Neuhausen am Rheinfall (CH)
Filed on Aug. 10, 2023, as Appl. No. 18/447,991.
Application 18/447,991 is a continuation of application No. 17/839,081, filed on Jun. 13, 2022, granted, now 11,763,601.
Application 17/839,081 is a continuation of application No. 16/534,435, filed on Aug. 7, 2019, granted, now 11,386,707, issued on Jul. 12, 2022.
Prior Publication US 2023/0386256 A1, Nov. 30, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G06V 40/16 (2022.01); G06F 21/32 (2013.01); G06T 17/20 (2006.01); G06V 20/64 (2022.01)
CPC G06V 40/173 (2022.01) [G06F 21/32 (2013.01); G06T 17/205 (2013.01); G06V 20/647 (2022.01); G06T 2200/08 (2013.01)] 20 Claims
OG exemplary drawing
 
12. A computer-implemented method for detecting three-dimensional features in validating a face for facial recognition, comprising:
processing a first image captured by a camera at a first time to determine a first set of multiple key points of a face in the first image;
processing a second image captured by the camera at a second time, that is within a threshold time of the first time, to determine a second set of the multiple key points on the face in the second image;
determining, based on a first location of each of a portion of the multiple key points in the first image and a second location of each of the portion of the multiple key points in the second image, a three-dimensional location of at least the portion of the multiple key points in a three-dimensional space; and
detecting whether the face is a valid three-dimensional face for facial recognition at least in part on the three-dimensional location of at least the portion of the multiple key points.