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:
Sep. 07, 2021
Filed:
Sep. 12, 2017
Nuctech Company Limited, Beijing, CN;
Guangming Xu, Beijing, CN;
Bicheng Liu, Beijing, CN;
Ziran Zhao, Beijing, CN;
Jianping Gu, Beijing, CN;
Qiang Li, Beijing, CN;
Lan Zhang, Beijing, CN;
NUCTECH COMPANY LIMITED, Beijing, CN;
Abstract
The present disclosure discloses a method of substance identification of an item to be inspected using a multi-energy-spectrum X-ray imaging system, the method comprising: acquiring a transparency related vector consisting of transparency values of the item to be inspected in N energy regions, wherein N is greater than 2; calculating distances between the transparency related vector and transparency related vectors stored in the system consisting of N transparency mean values of multiple kinds of items with multiple thicknesses in the N energy regions; and identifying the item to be inspected as the item corresponding to the minimum distance. The present disclosure is based on a multi-energy-spectrum X-ray imaging system, and proposes a method of substance identification by analyzing the multi-energy-spectrum substance identification issue. Compared with the conventional dual-energy X-ray system, the multi-spectrum imaging can significantly improve the system's ability to identify substances in theory, especially in the field of security applications. The improvement of substance identification is important for contraband inspection, such as, drugs, explosives.