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:
Jun. 20, 2023
Filed:
Dec. 16, 2019
Applicant:
Hangzhou Hikvision Digital Technology Co., Ltd., Zhejiang, CN;
Inventors:
Zhihao Ren, Zhejiang, CN;
Congyi Hua, Zhejiang, CN;
Assignee:
Hangzhou Hikvision Digital Technology Co., Ltd., Zhejiang, CN;
Primary Examiner:
Int. Cl.
CPC ...
G06V 40/16 (2022.01); G06T 7/50 (2017.01); G06V 10/50 (2022.01); G06V 40/40 (2022.01);
U.S. Cl.
CPC ...
G06V 40/168 (2022.01); G06T 7/50 (2017.01); G06V 10/50 (2022.01); G06V 40/169 (2022.01); G06V 40/45 (2022.01); G06T 2207/20021 (2013.01); G06T 2207/20081 (2013.01); G06T 2207/20224 (2013.01);
Abstract
A living body detection method and device are disclosed. Wherein the method comprises the following steps: extracting valid depth data of a target detection object from depth map data containing the target detection object; generating a depth difference histogram based on the valid depth data; and inputting the depth difference histogram into a pre-trained machine learning classifier to obtain a determination result of whether the target detection object is a living body. By adopting this method, the detection accuracy can be improved.