US 11,836,235 B2
Method and apparatus for testing liveness
Hana Lee, Suwon-si (KR); Youngjun Kwak, Seoul (KR); Sungheon Park, Suwon-si (KR); Hyeongwook Yang, Suwon-si (KR); Byung In Yoo, Seoul (KR); Juwoan Yoo, Anyang-si (KR); Solae Lee, Suwon-si (KR); Yong-Il Lee, Daejeon (KR); and Jiho Choi, Seoul (KR)
Assigned to Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Nov. 21, 2022, as Appl. No. 17/991,213.
Application 17/991,213 is a continuation of application No. 17/022,451, filed on Sep. 16, 2020, granted, now 11,508,188.
Claims priority of application No. 10-2020-0046273 (KR), filed on Apr. 16, 2020.
Prior Publication US 2023/0112452 A1, Apr. 13, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G06F 21/32 (2013.01); G06N 3/02 (2006.01); G06V 40/40 (2022.01); G06V 10/56 (2022.01); G06V 10/764 (2022.01); G06V 10/82 (2022.01); G06V 10/147 (2022.01); G06V 40/16 (2022.01); G06V 10/60 (2022.01)
CPC G06F 21/32 (2013.01) [G06N 3/02 (2013.01); G06V 10/147 (2022.01); G06V 10/56 (2022.01); G06V 10/60 (2022.01); G06V 10/764 (2022.01); G06V 10/82 (2022.01); G06V 40/166 (2022.01); G06V 40/168 (2022.01); G06V 40/45 (2022.01)] 20 Claims
OG exemplary drawing
 
1. A liveness test method, comprising:
receiving a color image and a photodiode (PD) image of an object from an image sensor comprising a pixel formed of a plurality of PDs;
preprocessing the color image and the PD image; and
determining a liveness of the object based on a liveness score by inputting a result of preprocessing the color image and a result of preprocessing the PD image into a neural network, wherein the liveness score is calculated based on outputs of the neural network,
wherein the liveness score is determined based on a distance between the image sensor and the object.