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Safety detection apparatus and detection method thereof

A detection device and a technology for security detection, applied in the field of security detection, can solve the problems of simple structure and low precision, and achieve the effects of reducing equipment cost, improving precision, and improving detection precision

Active Publication Date: 2016-07-13
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

The device only uses an X-ray system with a single viewing angle, which has a simple structure and low precision.

Method used

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  • Safety detection apparatus and detection method thereof
  • Safety detection apparatus and detection method thereof
  • Safety detection apparatus and detection method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] as attached figure 1 As shown, the security detection device of the present invention includes a CT detection device and a multi-view detection device disposed on one side of the CT detection device, and the CT detection device and the multi-view detection device both share one detection channel. The CT detection device is connected to a first control and data processing computer 10; a multi-view detector and a ray source module are arranged inside the multi-view detection device, and the multi-view detector is connected to a second control and data processing computer 13; The first control and data processing computer 10 and the second control and data processing computer 13 are all connected to the comprehensive data processing computer 12 for data interaction. The safety detection device also includes a transmission device 16, and the transmission device 16 passes through the detection channel of the CT detection device and the detection channel of the multi-view det...

Embodiment 2

[0058] Such as image 3 As shown, the safety detection device of the present invention provides another embodiment, the difference from Embodiment 1 is that the detected object 9 is placed on the transmission device 16, the transmission device 16 travels to the left, and the detected The object 16 first passes through the multi-view detection device, and then passes through the CT detection device. Figure 4 shown as image 3 The work flow diagram of the safety detection device is shown. The CT detection device adopts a dual-energy spectrum CT detection device, and the specific process includes: completing multi-view X-ray data acquisition in S21; completing image segmentation in S22, and querying the database according to the effective atomic number information of each segmented area, and initially determining Each two-dimensional region of interest; CT data acquisition is completed in S23, and three-dimensional reconstruction is performed on the collected CT data in S24 to...

Embodiment 3

[0060] Such as Figure 5 As shown, the safety detection device of the present invention also provides another embodiment. The difference between this embodiment and Embodiment 1 is that the CT detection device adopts a single energy spectrum CT detection device, and the safety detection device of this embodiment adopts The detection method first passes through the single-energy spectrum CT detection device and then passes through the multi-view detection device; specifically includes: S31 completes the collection of CT data, performs CT three-dimensional reconstruction in S32, obtains fault structure information and fault electron density information, and S33 performs each Carry out regional segmentation on each tomographic CT image to obtain each independent connected region in the fault, S34 refers to the electron density information, and preliminarily determines the three-dimensional interest area by querying the database; in S35, completes the multi-view X-ray image informa...

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Abstract

The invention relates to a safety detection apparatus and a detection method thereof. The safety detection apparatus comprises a CT detection apparatus and a multi-view detection apparatus, wherein the CT detection apparatus and the multi-view detection apparatus share one detection channel. The safety detection apparatus further comprises a transmission apparatus which passes through the detection channel of the CT detection apparatus and the detection channel of the multi-view detection apparatus. The safety detection method comprises a detected object passing through the CT detection apparatus and the multi-view detection apparatus, or the detected object passing through the multi-view detection apparatus and the CT detection apparatus. The advantages are as follows: the multi-view detection apparatus and the CT detection apparatus are combined for application, three-dimensional tomography structure information of the detected object is obtained by use of the CT detection apparatus, and thus the detection precision of the detected object is improved; and at the same time, the multi-view detection apparatus makes up for the disadvantage of lowered atomic number detection precision of the CT detection apparatus in a high-density metal object environment, and the precision of the whole detection apparatus is improved while the equipment cost is decreased.

Description

technical field [0001] The invention relates to the technical field of safety detection, in particular to a safety detection device and a detection method thereof. Background technique [0002] For the detection of explosives, the commonly used technical means in the world at this stage are roughly divided into X-ray detection technology, neutron detection technology, electromagnetic detection technology, and vapor trace detection technology. X-ray technology is currently the most widely used due to its own unique advantages. security check technology. X-ray security inspection technologies mainly include single-energy fluoroscopy technology, dual-energy fluoroscopy technology, multi-view technology, backscattering technology, single-energy spectral CT technology, dual-energy CT technology, etc. Single-energy fluoroscopy technology is the earliest X-ray security inspection technology used. It can only obtain the shape information of the object in the package, but not the ma...

Claims

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Application Information

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IPC IPC(8): G01V5/00G01N23/04
Inventor 陈力李保磊孔维武张耀军
Owner THE FIRST RES INST OF MIN OF PUBLIC SECURITY
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