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1. (WO2018121325) MULTI-ANGLE IMAGING DATA PROCESSING METHOD AND APPARATUS

Pub. No.:    WO/2018/121325    International Application No.:    PCT/CN2017/116970
Publication Date: Fri Jul 06 01:59:59 CEST 2018 International Filing Date: Tue Dec 19 00:59:59 CET 2017
IPC: G01N 23/04
Applicants: NUCTECH COMPANY LIMITED
同方威视技术股份有限公司
Inventors: WU, Shanshan
吴珊珊
WANG, Qiang
王强
LIU, Jingjing
刘晶晶
LIAO, Yuhua
廖育华
ZHANG, Jinyu
张金宇
Title: MULTI-ANGLE IMAGING DATA PROCESSING METHOD AND APPARATUS
Abstract:
A multi-angle imaging data processing method and apparatus. The method comprises: irradiating, using X-ray, and from two or more angles, an object to be checked (120) to obtain multi-angle imaging data (310); extracting, from the multi-angle imaging data, data representing the same region in the object to be checked (120) (320); reconstructing, according to the extracted data, a cross-sectional area (330); processing, on the basis of gradient descent, the reconstructed cross-sectional area to obtain a processed reconstructed cross-sectional area; determining, according to the processed reconstructed cross-sectional area, an effective atomic number and a characteristic density in the region; and determining, on the basis of the determined effective atomic number and characteristic density, whether the region contains a prohibited article.