Intelligent security check method based on terahertz imaging

Abstract

The invention provides an intelligent security check method based on terahertz imaging. The method comprises the following steps: obtaining a terahertz image of a detected object from a terahertz imaging system, and preprocessing the terahertz image to obtain a preprocessed terahertz image; inputting the preprocessed terahertz image into a preset deep learning model, and extracting object information data of a corresponding object to be detected in the preprocessed terahertz image; carrying out image instance segmentation and detection identification on the received article information data byusing a deep learning model; and fusing the instance segmentation result and the target detection and identification result, and generating a corresponding identification result according to the information judged as the suspicious prohibited article. According to the technical scheme provided by the embodiment of the invention, instance segmentation and detection identification of the target object in a variable environment are realized, the identification accuracy of prohibited goods in the security inspection process is ensured, and the complete information of the target object can be obtained.

Description

technical field [0001] The invention relates to the field of security inspection, in particular to an intelligent security inspection method, device, system and electronic equipment based on terahertz imaging. Background technique [0002] With the enhancement of public safety awareness, various security inspection equipment are widely used in important public places such as airports, ports, ports, subways, courts, and venues for major events. At present, the mainstream security scanners on the market are X-ray scanners, but due to the high energy of X-ray electrons, it is easy to cause ionization damage to the detected substances, so it is not suitable for safe scanning of the human body. [0003] Terahertz radiation refers to electromagnetic waves with a frequency of 0.1-10THz. Similar to x-ray, terahertz radiation can penetrate a variety of materials, such as plastic, paper, clothing and other non-metallic materials. In addition, terahertz waves are a kind of non-ionizin...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem that the target recognition scheme in the related art is difficult to apply to the changeable environment, especially the incomplete terahertz image of the target object caused by the overlapping and occlusion of the target object, the inability to obtain accurate information of the target object, and the low efficiency of manual processing, the present invention A smart security inspection method based on terahertz imaging is proposed, which can complete the information extraction of overlapping occluded objects on terahertz images based on deep learning, and then realize the instance segmentation and recognition of target objects in changing environments, and obtain complete information of target objects

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