Channel type four-perspective X-ray liquid goods safety inspection method and inspection device

A safety inspection and four-view technology, which is applied in the field of X-ray transmission imaging safety inspection, can solve the problems of low inspection speed, long time consumption, and limitations, and achieve the effect of fast inspection speed and high inspection accuracy

Active Publication Date: 2013-02-13
THE FIRST RES INST OF MIN OF PUBLIC SECURITY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of CT tomography technology also has obvious deficiencies: 1) The inspection speed is low, usually it takes about 8 seconds to inspect once, and usually only one liquid object with a conventional volume can be inspected at a time, and the inspection process takes a long time ;2) The coverage of inspection objects is not wide, and there are certain restrictions on the diameter, height, and volume of liquid objects to be inspected, and only liquid objects can be specifically inspected and cannot be compatible with inspection packages
These two deficiencies will limit the application of the CT-type liquid article safety inspection method and equipment in places with a large flow of people, such as: airports, railway stations, large gatherings and other places

Method used

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  • Channel type four-perspective X-ray liquid goods safety inspection method and inspection device
  • Channel type four-perspective X-ray liquid goods safety inspection method and inspection device
  • Channel type four-perspective X-ray liquid goods safety inspection method and inspection device

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Embodiment Construction

[0061] figure 1 It is a flowchart of a channel-type four-view X-ray liquid article safety inspection method described in the present invention. The method analyzes the acquired four-view image of liquid articles. For specific examples, see Figure 12 , to extract the material and density two-dimensional features of liquid items, to realize the safety inspection of liquid items, mainly including the following steps:

[0062] 1) Segmentation of liquid items in step S1: Segment the obtained images from each view angle, locate the area of ​​liquid items, and find out the same group of liquid item areas representing the same liquid item in the four-view images through area matching:

[0063] 2) Step S2 Calculation of container material and wall thickness: For each group of liquid items, calculate the container material and wall thickness. First, determine the material properties of the container. If the container is a low atomic number substance such as plastic, it is considered t...

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Abstract

The invention belongs to the technical field of X-ray transmission imaging safety inspection and discloses a channel type four-perspective X-ray liquid goods safety inspection method and inspection device. The channel type four-perspective X-ray liquid goods safety inspection method is characterized in that the inspection device is used for analyzing obtained four-perspective liquid goods images, extracting two-dimensional features of material and density of liquid goods and determining whether to give out an alarm to the liquid goods according to the two-dimensional features of the material and the density of the liquid goods to realize liquid goods inspection. A foam groove used for placing the inspected liquid goods is respectively arranged on each of the upper part and the lower part in a box body of an inspection box of the inspection device horizontally, thin foam is arranged on the bottom of the box body, and the number of the inspected liquid goods placed in the foam grooves is less than or equal to 3. A plurality of liquid goods in the inspection box can be fast inspected once when the safety inspection method and inspection device are matched for using, and automatic detection of the dangerousness of the inspected liquid goods is efficiently realized.

Description

technical field [0001] The invention belongs to the technical field of X-ray transmission imaging safety inspection, and in particular relates to a channel-type four-view X-ray safety inspection method for liquid articles. The invention also relates to an inspection device used in a channel-type four-view X-ray safety inspection method for liquid articles. Background technique [0002] Since the "9.11" incident, the inspection of liquid objects has gradually become a hot issue in the field of security inspection, especially in the fields of aviation, railways, highways, assemblies and other security fields. Due to the wide variety of liquid objects involved and different packages, it is difficult to quickly and accurately inspect It is becoming more and more difficult to identify the hazards of various liquid objects. [0003] Among the existing safety inspection technologies for liquid articles, the non-destructive inspection method based on X-ray transmission imaging tech...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N23/10G01N9/24
Inventor 杨立瑞孔维武查艳丽王宇石张燕鸣王建荣李宏伟杨桂文王伟金川果雪莹茹一廖建新
Owner THE FIRST RES INST OF MIN OF PUBLIC SECURITY
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