Visible light and X-ray image matching method and device based on conveyor belt identification

Abstract

The invention provides a visible light and X-ray image matching method and a visible light and X-ray image matching device based on a conveyor belt identifier in order to solve the problem of matching of object images shot by visible light and object images scanned by X-ray in a security check field scene. A network high-definition camera module is installed above an inlet of the X-ray security inspection machine, and digital identification strips made of metal materials are installed on the two sides of the conveying belt. The method comprises: using a deep focusing convolutional residual network to carry out article detection on a visible light snapshot image and an X-ray scanning image, and using a convolutional neural network using the residual network as a model to carry out automatic identification on digits on the images; and calculating the number on the marking strip corresponding to the article through projection by using the detected article coordinates on the visible light snapshot image and the X-ray scanning image; and then realizing matching of the visible light and the X-ray article image through matching of digits on the visible light snapshot image and digits on the X-ray scanning image, so that a security inspector can confirm the visible light article image corresponding to the X-ray article image more conveniently, and security inspection efficiency is improved.

Description

technical field [0001] The invention belongs to the field of security inspection in security, and relates to visible light imaging, X-ray imaging, graphic image processing, computer vision and other technologies. Marks are set on the conveyor belt, so that the image of items collected by visible light and the image of items collected by X-ray can be matched to improve security inspection. efficiency. Background technique [0002] Security checks are already very common in daily life. For example, security check machines will be equipped in scenes such as subway entrances, airports, and important venues. The security inspection machine usually uses active X-ray technology to send the detected item (usually a package) into the scanning area through a conveyor belt, and then scans the item through X-ray to obtain an X-ray image (perspective image), and then checks whether the item contains prohibited items. Restricted items are identified. If there are suspected prohibited and...

AI Technical Summary

Problems solved by technology

[0003] The present invention proposes a matching method and device for visible light and X-ray images based on the conveyor belt mark in order to solve the problem of matching the image of the item captured by the visible light of the security inspection machine scene and the image of the X-ray scanned item

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