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Authentication method and device, equipment and storage medium

An identification method and sample technology, applied in the computer field, can solve the problems of high false alarms, low work efficiency, and high requirements in metal detection, and achieve the effect of improving the automatic detection rate

Inactive Publication Date: 2019-07-23
软通智慧科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, metal detection gates cannot detect non-metallic contraband, such as ceramic knives, etc., and metal detection false alarms are high, and manual supplementary hand-held metal detectors are required for re-examination, which results in low security inspection efficiency and high labor intensity; micro-dose X-ray imaging Although the X-ray flying-spot scanning backscatter imaging technology has good imaging quality, it has the risk of ionizing radiation damage to the human body; although the millimeter-wave imaging technology has no ionizing radiation, the highest detection rate of automatic identification is only 85%, and it needs manual supplementation. Due to the limitation of resolution, the imaging quality is difficult to meet the requirements; the passive terahertz imaging security inspection has a simple structure, no radiation, no contact, no stay, but it cannot be used outdoors, and has high requirements for indoor temperature, light and other environments
[0004] The above-mentioned non-contact human body security inspection technologies all need to carry out coordinated security inspections in fixed security inspection channels, and at the same time need to be accompanied by "body search" inspections, which are not only inefficient but also suspected of violating privacy
For open non-cooperative target groups, it is impossible to identify whether they are carrying dangerous goods in real time

Method used

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  • Authentication method and device, equipment and storage medium
  • Authentication method and device, equipment and storage medium
  • Authentication method and device, equipment and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] figure 1 It is a flow chart of an authentication method provided by Embodiment 1 of the present invention. This embodiment is applicable to the situation of authentication. The method can be executed by the authentication device in the embodiment of the present invention. The device can use software and / or hardware way, such as figure 1 As shown, the method specifically includes the following steps:

[0051] S110, transmitting a terahertz wave signal.

[0052] Among them, the terahertz wave is also called "life ray", which is a kind of "light" energy, and refers to electromagnetic waves with a wavelength between 3 μm and 1000 μm and a frequency of 0.1-10 THz, between microwaves and infrared rays. . Terahertz waves not only have the same linearity as light, but also have penetrability and absorption similar to electric waves. Both traditional human body perspective and radiographs use X-rays, but X-rays will have side effects on the human body. Terahertz waves also ...

Embodiment 2

[0066] Figure 2 is a flow chart of an identification method in Embodiment 2 of the present invention. This embodiment is optimized based on the above-mentioned embodiment. In this embodiment, obtaining the target characteristic data of a dangerous goods sample includes: obtaining a dangerous goods sample corresponding sample echo data; performing vertical and / or horizontal polarization on the sample echo data; performing FFT transformation on the polarized sample echo data to obtain characteristic data corresponding to the sample echo data; The feature data is intercepted in the distance dimension to obtain the target feature data.

[0067] As shown in Figure 2, the method of this embodiment specifically includes the following steps:

[0068] S210, Transmit a terahertz wave signal.

[0069] S220. Receive echo data corresponding to the terahertz wave signal.

[0070] S230. Acquire sample echo data corresponding to the dangerous goods sample.

[0071] Wherein, the sample echo...

Embodiment 3

[0101] image 3 It is a schematic structural diagram of an identification device provided in Embodiment 3 of the present invention. This embodiment can be applied to authentication, and the device can be implemented in software and / or hardware, and the device can be integrated in any device that provides authentication functions, such as image 3 As shown, the authentication device specifically includes: a transmitting module 310 , a receiving module 320 , an acquiring module 330 and a determining module 340 .

[0102] Wherein, the transmitting module is used for transmitting terahertz wave signals;

[0103] a receiving module, configured to receive echo data corresponding to the terahertz wave signal;

[0104] An acquisition module, configured to acquire target characteristic data of the dangerous goods sample;

[0105] A determining module, configured to match the echo data with the target characteristic data, and determine the dangerous goods identification result of the...

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PUM

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Abstract

The invention discloses an authentication method and device, equipment and a storage medium. The method comprises the following steps: transmitting a terahertz wave signal; receiving echo data corresponding to the terahertz wave signal; acquiring target characteristic data of a dangerous goods sample; and matching the echo data with the target characteristic data, and determining the dangerous goods identification result of the echo signal according to the matching result. Through the technical scheme of the invention, non-perceptual detection and early warning of dangerous goods hidden in human body in open areas can be realized, and the automatic detection rate of dangerous goods carried by non-cooperative target population is improved.

Description

technical field [0001] The embodiments of the present invention relate to computer technology, and in particular to an authentication method, device, equipment and storage medium. Background technique [0002] Non-cooperative target groups cannot detect hidden dangerous goods without perception. In the context of large crowds, it is difficult to determine whether the target group is carrying dangerous goods or whether they are dangerous people. At the same time, non-cooperative target security checks are repetitive, labor-intensive, and costly High and dangerous characteristics, unable to take into account and solve the worldwide problem of "service" and "safety". [0003] At present, non-contact human body security inspection technologies include metal detection gates, micro-dose X-ray imaging, X-ray flying spot scanning backscatter imaging, millimeter wave imaging, and passive terahertz imaging. Among them, metal detection gates cannot detect non-metallic contraband, such...

Claims

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Application Information

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IPC IPC(8): G01S13/88G01S7/41
CPCG01S7/411G01S7/418G01S13/887
Inventor 樊玉君
Owner 软通智慧科技有限公司