CONFERENCE PROCEEDINGS
Advanced Search
Home > Proceedings > Volume 12779 > Article
Open Access Paper
11 September 2023 Full-image acquisition and analysis of hot heavy rail incorporating multiple CCD
Zengzhen Mi, Hongming Zhang, Jing Tang, Xingyuan Xu
Author Affiliations +
Proceedings Volume 12779, Seventh International Conference on Mechatronics and Intelligent Robotics (ICMIR 2023); 127792B (2023) https://doi.org/10.1117/12.2688729
Event: Seventh International Conference on Mechatronics and Intelligent Robotics (ICMIR 2023), 2023, Kunming, China
Abstract
The rail transportation industry is moving towards heavy loads, high speeds as well as high density operation, which places higher demands on the quality of heavy rail. The quality inspection of rail defects using machine vision first requires obtaining clear surface/planar images of multiple surfaces of the hot heavy rail. Therefore, a vision inspection solution is proposed, which uses a 6-lane linear CCD to photograph the tread surface, bottom surface, and upper and lower waist surfaces of the heavy rail. A comprehensive comparison of various types of light sources was conducted through experiments on chromaticity, brightness, and spectral power. To solve the problem of image overexposure due to infrared radiation of the hot heavy rail, the spectral radiation characteristics of the hot heavy rail were analyzed, and the imaging effects of adding different filters were compared and analyzed. Finally, to solve the problem of out-of-focus due to oscillation of the heavy rail during rolling, the image is analyzed by an automatic focus search strategy, and the results are fed back to the camera to achieve automatic focus, thus adaptively obtaining good image quality and laying a good foundation for further defects detection.
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Zengzhen Mi, Hongming Zhang, Jing Tang, and Xingyuan Xu "Full-image acquisition and analysis of hot heavy rail incorporating multiple CCD", Proc. SPIE 12779, Seventh International Conference on Mechatronics and Intelligent Robotics (ICMIR 2023), 127792B (11 September 2023); https://doi.org/10.1117/12.2688729
PROCEEDINGS
 10 PAGES
DOWNLOAD PAPER SAVE TO MY LIBRARY
GET CITATION
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Cameras
Image processing
CCD cameras
Charge-coupled devices
Light sources
Defect detection
Inspection
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top