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Liquid goods safety inspection method and device

A security inspection and item technology, applied in the use of radiation for material analysis, etc., can solve the problems of only checking liquid items, taking a long time, and not compatible with checking packages, etc.

Active Publication Date: 2014-11-26
THE FIRST RES INST OF MIN OF PUBLIC SECURITY +1
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Problems solved by technology

[0003] Although the above-mentioned CT tomography technology has high detection performance, it also has obvious deficiencies: 1) The inspection efficiency is low, and usually only one liquid object of a conventional size can be inspected at a time, and the inspection process takes a long time; 2) The inspection object Coverage is limited, except that it is not suitable for detecting super-large and super-high liquids, and it can only specifically inspect liquid objects and is not compatible with inspection packages; these two shortcomings will limit the application of CT-type liquid object safety inspection methods and equipment in places with large flow of people , such as airports, railway stations, large gatherings and other places

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  • Liquid goods safety inspection method and device

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Embodiment Construction

[0033] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0034] figure 1It shows a flow chart of a method for safety inspection of liquid articles in the present invention; first, the liquid is placed flat in the liner slot in a plastic tray of a certain size, and the articles are placed in order before and after X-ray scanning; then, the The device analyzes the liquid items therein according to the acquired images of the trays from two perspectives, so as to realize the safety inspection of the liquid items. The detection process mainly includes the following modules: image classification module 1, image segmentation module 2, detection location selection module 3, container attribute estimation module 4, low-density container section reconstruction module 5, high-density container section reconstruction module 6, and decision-making module 7. Finally, return the liquid detection result to the control pro...

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Abstract

The invention discloses a liquid goods safety inspection method and device. Liquid goods placed in a special inspection tray are subjected to double-visual-angle X-ray imaging, the contents of a vessel projection image is analyzed to reconstruct the shape of the cross section of a vessel with double-visual-angle X-ray projection information only, and a classifier method is utilized to carry out automatic inspection on the risk of the detected liquid goods in a high-efficiency manner. The liquid goods safety inspection device comprises two visual angles, each visual angle is composed of an X-ray source and a detector, and each X-ray source and each detector form one detection unit. The method and the device have the advantages of high inspection precision, high imaging quality, high inspection speed and high performance-cost ratio, and can be used for inspecting the safety of a plurality of liquid goods one time.

Description

technical field [0001] The invention relates to a method and device for safety inspection of liquid articles, belonging to the technical field of safety inspection of liquid articles. Background technique [0002] At present, in the existing liquid article safety inspection technology, the non-destructive inspection method based on X-ray transmission imaging technology has the characteristics of high accuracy of inspection results, low sensitivity to container materials, and convenient operation, and is receiving more and more attention. Security inspection manufacturers attach great importance to it. Among them, two invention patents with publication numbers CN101140247A and CN101629916A are more representative. What they have in common is that they are all based on CT tomography technology. The method can be briefly described as follows: the radiation source emits X The ray transmission is inspected liquid object, the detector is used to receive the ray beam transmitted th...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/04
Inventor 王宇石杨立瑞孔维武查艳丽王军李保磊李宏伟王建荣
Owner THE FIRST RES INST OF MIN OF PUBLIC SECURITY
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