US 11,682,240 B2
Liveness test method and apparatus
Byungin Yoo, Seoul (KR); Jingtao Xu, Beijing (CN); Chao Zhang, Beijing (CN); Hao Feng, Beijing (CN); Yanhu Shan, Beijing (CN); Youngjun Kwak, Seoul (KR); Youngsung Kim, Suwon-si (KR); Wonsuk Chang, Hwaseong-si (KR); and Jaejoon Han, Seoul (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Sep. 8, 2021, as Appl. No. 17/468,995.
Application 17/468,995 is a continuation of application No. 15/886,875, filed on Feb. 2, 2018, granted, now 11,176,392.
Claims priority of application No. 10-2017-0038347 (KR), filed on Mar. 27, 2017.
Prior Publication US 2021/0406569 A1, Dec. 30, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. G06V 40/40 (2022.01); G06V 40/16 (2022.01)
CPC G06V 40/45 (2022.01) [G06V 40/161 (2022.01); G06V 40/169 (2022.01); G06V 40/172 (2022.01)] 20 Claims
OG exemplary drawing
 
1. A liveness test method implemented by a mobile device, the method comprising:
obtaining an input image using a camera of the mobile device;
detecting a face region in the input image for a test target;
implementing a first liveness test to determine a first liveness value based on a first image corresponding to the detected face region;
implementing a second liveness test to determine a second liveness value based on a second image corresponding to a partial face region of the detected face region;
implementing a third liveness test to determine a third liveness value based on an entirety of the input image or a full region of the input image that includes the detected face region and a region beyond the detected face region; and
determining a result of the liveness test based on any one or any combination of any two or more of the first liveness value, the second liveness value, and the third liveness value.