Title:
DETECTION METHOD, APPARATUS AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/121691
Kind Code:
A1
Abstract:
A detection method, apparatus (500) and system (100). The detection method comprises: obtaining information of at least two first positions through which a particle passes before penetrating an object to be detected, and information of at least two second positions through which the particle passes after penetrating said object (S310), said object being a metal product; reconstructing, on the basis of the information of the at least two first positions, a first track before the particle penetrates said object (S320); reconstructing, on the basis of the information of the at least two second positions, a second track after the particle penetrates said object (S330); processing the first track and the second track to obtain feature information of said object (S340); and determining a detection result of said object according to the feature information and preset feature information of an object of a target type (S350). The detection method can improve the accuracy of the detection result.
Inventors:
ZENG ZHI (CN)
LI JIANMIN (CN)
RUAN MING (CN)
DENG YANLI (CN)
ZHU GUOPING (CN)
LI JUNLI (CN)
LI JIANMIN (CN)
RUAN MING (CN)
DENG YANLI (CN)
ZHU GUOPING (CN)
LI JUNLI (CN)
Application Number:
PCT/CN2021/133067
Publication Date:
June 16, 2022
Filing Date:
November 25, 2021
Export Citation:
Assignee:
NUCTECH CO LTD (CN)
UNIV TSINGHUA (CN)
UNIV TSINGHUA (CN)
International Classes:
G01V5/00; G01N23/10
Foreign References:
| CN109283588A | 2019-01-29 | |||
| US20160041297A1 | 2016-02-11 | |||
| CN105700029A | 2016-06-22 | |||
| CN105549103A | 2016-05-04 | |||
| CN103308938A | 2013-09-18 |
Other References:
GARY BLANPIED, ET AL.: "Material discrimination using scattering and stopping of cosmic ray muons and electrons: Differentiating heavier from lighter metals as well as low-atomic weight materials", NUCLEAR INSTRUMENTS AND METHODS IN PHYSICS RESEARCH SECTION A, vol. 784, 1 June 2015 (2015-06-01), XP055416567, DOI: 10.1016/j.nima.2014.11.027
ZHENG YIFAN, ET AL.: "Discrimination of drugs and explosive in cargo inspections by applying machine learning in muon tomography", NUCLEAR INSTRUMENTS AND METHODS IN PHYSICS RESEARCH SECTION A, vol. 30, no. 8, 31 August 2018 (2018-08-31), XP055940875
ZHENG YIFAN, ET AL.: "Discrimination of drugs and explosive in cargo inspections by applying machine learning in muon tomography", NUCLEAR INSTRUMENTS AND METHODS IN PHYSICS RESEARCH SECTION A, vol. 30, no. 8, 31 August 2018 (2018-08-31), XP055940875
Attorney, Agent or Firm:
BEIJING EAST IP LTD. (CN)
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