Railway inspection scene modeling method based on image recognition

By adopting image recognition technology in railway inspection, integrating visible light and infrared images, screening sensitive events and generating three-dimensional scenes, the difficulty of data management and detection under extreme weather conditions in railway inspection is solved, and efficient and accurate inspection is achieved and problem management.

CN119417997APending Publication Date: 2025-02-11XIAN RAILWAY SCI & TECH RES & DEV CO LTD
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Patent Information

Application Number
CN202411379958.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-09-30
Publication Date
2025-02-11

AI Technical Summary

Technical Problem

During the railway inspection, we face data management difficulties and detection difficulties under extreme weather conditions, which affect the inspection efficiency and safety.

Method used

Using a railway patrol scene modeling method based on image recognition, visible light and infrared images are obtained through drones, image data is fused, sensitive events are screened using target detection and recognition models, three-dimensional scenes are generated and precise positioning is achieved.

Benefits of technology

The full-time image detection along the railway is realized, the calculation amount is reduced, and the imaging can be clearly taken under severe weather conditions, assisting staff to quickly go to abnormal places, and tracking and closed-loop management of problems.

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Abstract

The invention discloses a railway inspection scene modeling method based on image recognition. The method comprises the following steps: acquiring a visible light image set and an infrared image set; preprocessing the image; obtaining a first positive example feature map; obtaining a second positive example feature map; fusing the image corresponding to the first positive example feature map under the same semantics and the image corresponding to the second positive example feature map under the same semantics to obtain a fused image; acquiring an image target frame of the fused image; acquiring a corresponding relation between the image target frame and the GPS coordinate position; and constructing a three-dimensional map. According to the invention, the visible light image and the infrared image are fused for use, so that all-time image detection along the railway can be realized; the first positive example feature map and the second positive example feature map are screened, a target frame is positioned for the image with the sensitive event label, and the calculation amount is reduced; the three-dimensional scene is obtained according to the image target frame, and meanwhile, the position of the three-dimensional scene is accurately positioned, so that a worker is assisted to quickly go to an abnormal place, and problem tracking and closed-loop management are realized.
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