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1. (WO2018103398) MULTI-ENERGY SPECTRUM X-RAY IMAGING SYSTEM AND METHOD FOR SUBSTANCE IDENTIFICATION OF OBJECT TO BE TESTED USING MULTI-ENERGY SPECTRUM X-RAY IMAGING SYSTEM

Pub. No.:    WO/2018/103398    International Application No.:    PCT/CN2017/101363
Publication Date: Fri Jun 15 01:59:59 CEST 2018 International Filing Date: Wed Sep 13 01:59:59 CEST 2017
IPC: G01N 23/087
Applicants: NUCTECH COMPANY LIMITED
同方威视技术股份有限公司
Inventors: XU, Guangming
徐光明
LIU, Bicheng
刘必成
ZHAO, Ziran
赵自然
GU, Jianping
顾建平
LI, Qiang
李强
ZHANG, Lan
张岚
Title: MULTI-ENERGY SPECTRUM X-RAY IMAGING SYSTEM AND METHOD FOR SUBSTANCE IDENTIFICATION OF OBJECT TO BE TESTED USING MULTI-ENERGY SPECTRUM X-RAY IMAGING SYSTEM
Abstract:
A method (500) for substance identification of an object to be tested using a multi-energy spectrum x-ray imaging system, comprising: obtaining a transparency correlation vector composed of transparency values of an object to be tested in N energy regions, N being greater than 2 (S510); calculating the distance between the transparency correlation vector and a transparency correlation vector composed of N transparency mean values of a plurality of objects stored in a system in N energy regions under a condition of a plurality of thicknesses (S520); and identifying the object to be tested as an object corresponding to a smallest distance (S530).