US 12,300,038 B2
Method and apparatus with liveness detection
Solae Lee, Suwon-si (KR); Youngjun Kwak, Seoul (KR); Sungheon Park, Suwon-si (KR); Byung In Yoo, Seoul (KR); Yong-Il Lee, Suwon-si (KR); Hana Lee, Suwon-si (KR); Jiho Choi, Seoul (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 May 16, 2023, as Appl. No. 18/197,883.
Application 18/197,883 is a continuation of application No. 17/313,437, filed on May 6, 2021, granted, now 11,694,480.
Claims priority of application No. 10-2020-0093137 (KR), filed on Jul. 27, 2020; and application No. 10-2020-0178770 (KR), filed on Dec. 18, 2020.
Prior Publication US 2023/0306791 A1, Sep. 28, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G06V 40/40 (2022.01); G06T 5/20 (2006.01); G06T 5/73 (2024.01); G06V 10/30 (2022.01); G06V 40/16 (2022.01)
CPC G06V 40/45 (2022.01) [G06T 5/20 (2013.01); G06T 5/73 (2024.01); G06V 10/30 (2022.01); G06V 40/161 (2022.01); G06T 2207/20084 (2013.01); G06T 2207/30201 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A processor-implemented method with liveness detection, comprising:
receiving a plurality of phase images of different phases, captured by a multi-phase detection image sensor;
generating a plurality of preprocessed phase images by performing preprocessing, including edge enhancement processing, on the plurality of phase images of different phases;
generating a plurality of differential images based on a result of determining a respective difference in pixel values between the preprocessed phase images; and
performing a liveness detection on an object in the phase images based on the differential images,
wherein, in a case in a two-dimensional (2D) object is captured by the multi-phase detection image sensor, there is not a disparity between the plurality of phase images of different phases,
wherein, in a case in a three-dimensional (3D) object is captured by the multi-phase detection image sensor, there is the disparity between the plurality of phase images of different phases and at least one of the plurality of differential images comprises disparity information associated with the disparity.