公开(公告)号：US20240087358A1

公开(公告)日：2024-03-14

申请号：US18515798

申请日：2023-11-21

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Youngjun KWAK ,  Minsu KO ,  Youngsung KIM ,  Heewon KIM ,  Ju Hwan SONG ,  Byung In YOO ,  Seon Min RHEE ,  Yong-il LEE ,  Jiho CHOI ,  Seungju HAN

IPC: G06V40/16 ,  G06F21/32 ,  G06T7/00 ,  G06T7/73 ,  G06V10/143 ,  G06V40/40

CPC classification number: G06V40/166 ,  G06F21/32 ,  G06T7/0012 ,  G06T7/73 ,  G06V10/143 ,  G06V40/161 ,  G06V40/168 ,  G06V40/40 ,  G06T2207/10028 ,  G06T2207/10048 ,  G06T2207/30201

Abstract: A processor-implemented method includes generating a preprocessed infrared (IR) image by performing first preprocessing based on an IR image including an object; generating a preprocessed depth image by performing second preprocessing based on a depth image including the object; and determining whether the object is a genuine object based on the preprocessed IR image and the preprocessed depth image

公开(公告)号：US20230306791A1

公开(公告)日：2023-09-28

申请号：US18197883

申请日：2023-05-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Solae LEE ,  Youngjun KWAK ,  Sungheon PARK ,  Byung In YOO ,  Yong-Il LEE ,  Hana LEE ,  Jiho CHOI ,  Jaejoon HAN

IPC: G06V40/40 ,  G06V10/30 ,  G06V40/16 ,  G06T5/00 ,  G06T5/20

CPC classification number: G06V40/45 ,  G06T5/003 ,  G06T5/20 ,  G06V10/30 ,  G06V40/161 ,  G06T2207/20084 ,  G06T2207/30201

Abstract: A processor-implemented method with liveness detection includes: receiving a plurality of phase images of different phases; 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 the preprocessed phase images; generating a plurality of low-resolution differential images having lower resolutions than the differential images, based on the differential images; generating a minimum map image based on the low-resolution differential images; and performing a liveness detection on an object in the phase images based on the minimum map image.

公开(公告)号：US20230112452A1

公开(公告)日：2023-04-13

申请号：US17991213

申请日：2022-11-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hana LEE ,  Youngjun KWAK ,  Sungheon PARK ,  Hyeongwook YANG ,  Byung In YOO ,  Juwoan YOO ,  Solae LEE ,  Yong-Il LEE ,  Jiho CHOI

IPC: G06V40/40 ,  G06N3/02 ,  G06V10/56 ,  G06V10/60

Abstract: Disclosed is a method and apparatus for testing a liveness, where the liveness test method includes 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 by inputting a result of preprocessing the color image and a result of preprocessing the PD image into a neural network.

公开(公告)号：US20220027649A1

公开(公告)日：2022-01-27

申请号：US17313437

申请日：2021-05-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Solae LEE ,  Youngjun KWAK ,  Sungheon PARK ,  Byung In YOO ,  Yong-Il LEE ,  Hana LEE ,  Jiho CHOI ,  Jaejoon HAN

IPC: G06K9/00 ,  G06K9/40 ,  G06T5/00 ,  G06T5/20

Abstract: A processor-implemented method with liveness detection includes: receiving a plurality of phase images of different phases; 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 the preprocessed phase images; generating a plurality of low-resolution differential images having lower resolutions than the differential images, based on the differential images; generating a minimum map image based on the low-resolution differential images; and performing a liveness detection on an object in the phase images based on the minimum map image.