US 11,954,940 B2
Method and system for chrominance-based face liveness detection
Konstantin Levinski, Singapore (SG); Iskandar Goh, Singapore (SG); Tien Hiong Lee, Singapore (SG); Weng Sing Tang, Singapore (SG); and Xin Qu, Singapore (SG)
Assigned to NEC CORPORATION, Tokyo (JP)
Appl. No. 17/618,694
Filed by NEC Corporation, Tokyo (JP)
PCT Filed Jul. 17, 2020, PCT No. PCT/JP2020/028772
§ 371(c)(1), (2) Date Dec. 13, 2021,
PCT Pub. No. WO2021/015293, PCT Pub. Date Jan. 28, 2021.
Claims priority of application No. 10201906721S (SG), filed on Jul. 19, 2019.
Prior Publication US 2022/0245964 A1, Aug. 4, 2022
Int. Cl. G06K 9/20 (2006.01); G06K 9/62 (2022.01); G06V 10/141 (2022.01); G06V 40/16 (2022.01); G06V 40/40 (2022.01)
CPC G06V 40/166 (2022.01) [G06V 10/141 (2022.01); G06V 40/172 (2022.01); G06V 40/45 (2022.01)] 24 Claims
OG exemplary drawing
 
1. A method for liveness detection authentication of a facial image comprising:
acquiring a first image of the facial image illuminated with a first color;
acquiring a second image of the facial image illuminated with a second color;
determining if the facial image is consistent with a three-dimensional (3D) structure in response to a combination of the first and second images
determining if the facial image matches a user to be authenticated by comparing a combination of the first and second images to an image of the user to be authenticated, the image of the user to be authenticated being stored in a memory; and
authenticating the facial image if the facial image is consistent with the 3D structure and the facial image matches a face of the user to be authenticated.