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.

Date of Patent:
Jan. 05, 2021

Filed:

Jul. 12, 2018
Applicants:

Shenzhen Cct Thz Technology Co., Ltd., Shenzhen, CN;

China Communication Technology Co., Ltd., Shenzhen, CN;

Inventors:

Chunchao Qi, Shenzhen, CN;

Hanjiang Chen, Shenzhen, CN;

Zhiquan Li, Shenzhen, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 13/88 (2006.01); G01S 7/41 (2006.01); G01S 13/89 (2006.01);
U.S. Cl.
CPC ...
G01S 13/887 (2013.01); G01S 7/41 (2013.01); G01S 7/412 (2013.01); G01S 13/89 (2013.01);
Abstract

A human-body foreign-matter detection method and system based on millimeter-wave image. The method comprises: obtaining a millimeter-wave grayscale image of a human body; extracting a human-body contour image in the millimeter-wave grayscale image; constructing a vertical space distribution histogram in a vertical direction and a horizontal space distribution histogram in a horizontal direction for the human-body contour image; obtaining positions of limbs of the human body according to the vertical space distribution histogram, the horizontal space distribution histogram and a pre-set human-body proportion model; identifying a foreign matter in the human-body contour image according to pre-set foreign-matter feature identification models; and marking a position of the foreign matter on the human-body contour image according to the positions of the limbs, and generating a foreign-matter detection result.


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