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An identification method, device, equipment and storage medium

An identification method and material technology, applied in the computer field, can solve the problems of high false alarm, high labor intensity and low work efficiency in metal detection, and achieve the effect of improving the automatic detection rate

Active Publication Date: 2021-07-27
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
[0003] 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 distinguish in real time whether they carry controlled knives

Method used

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  • An identification method, device, equipment and storage medium
  • An identification method, device, equipment and storage medium
  • An identification method, device, equipment and storage medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] figure 1 It is a flow chart of an identification method provided by Embodiment 1 of the present invention. This embodiment is applicable to the situation of identification of controlled tools. The method can be executed by the identification device in the embodiment of the present invention. The device can use software and / or implemented in hardware, such as figure 1 As shown, the method specifically includes the following steps:

[0048] S110, transmitting a terahertz wave signal.

[0049] 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...

Embodiment 2

[0061] Figure 2A It is a flow chart of an identification method in Embodiment 2 of the present invention. This embodiment is optimized on the basis of the above-mentioned embodiments. In this embodiment, the training method of the target control tool identification model includes: obtaining samples back wave data, and establish a first control tool identification model, wherein the sample echo data includes sample echo data fed back by control tools of different sizes, materials, and shapes, and control signals corresponding to signal transmitting ends and signal receiving ends in different directions. The sample echo data fed back by the tool and the sample echo data fed back by the controlled tool with a different distance from the signal transmitting end or the signal receiving end; according to the sample echo data, the first controlled tool identification model is trained to generate the Object-controlled tool identification model.

[0062] Such as Figure 2A As shown,...

Embodiment 3

[0091] image 3 It is a schematic structural diagram of an identification device provided in Embodiment 3 of the present invention. This embodiment is applicable 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 and a determining module 330 .

[0092] Wherein, the transmitting module is used for transmitting terahertz wave signals;

[0093] a receiving module, configured to receive echo data corresponding to the terahertz wave signal;

[0094] A determining module, configured to input the echo data into a pre-trained target control tool identification model, and determine the control tool identification result of the echo signal according to the output result of the target control tool prediction model; wherein, the target The model...

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Abstract

The invention discloses an identification method, device, equipment and storage medium. The method includes: transmitting a terahertz wave signal; receiving echo data corresponding to the terahertz wave signal; inputting the echo data into a pre-trained target control tool identification model, and according to the output of the target control tool prediction model As a result, the control tool identification result of the echo signal is determined; wherein, the model structure and model parameters of the target control tool identification model are respectively determined according to the sample echo data for training, through the technical solution of the present invention, can realize In the open area, the human body hides the controlled knives without perception detection and early warning, and improves the automatic detection rate of non-cooperative target groups carrying controlled knives.

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] 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 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 i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/48G01S17/88
CPCG01S7/4802G01S17/88
Inventor 樊玉君
Owner 软通智慧科技有限公司