The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 13, 2025
Filed:
May. 16, 2023
Samsung Electronics Co., Ltd., Suwon-si, KR;
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;
Jaejoon Han, Seoul, KR;
Samsung Electronics Co., Ltd., Suwon-si, KR;
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.