文章基本信息

标题：Quality Inspection for the Body-in-white Assembly of High-Speed Train Carriage Based on Machine Vision
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作者：Ruichen LI ; Lei MA ; Qichao TANG 等
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2022
卷号：55
期号：8
页码：13-18
DOI：10.1016/j.ifacol.2022.08.003
语种：English
出版社：Elsevier
摘要：AbstractIn this paper a non-contact weld measurement method based on machine vision is proposed for quality inspection of weld height and width. The presented method is developed for yet not restricted to body-in-white (BIW) assembly of high-speed train carriages. The proposed measurement method increases the anti-noise ability by adopting median filtering algorithm in an adaptive window. The center extraction algorithm combining gray centroid and Hessian matrix are designed to realize the extraction of sub-pixel centerline stripes. The dimensional measurement of the weld features is completed by mapping relationship between the pixel coordinate system and the world coordinate system obtained by the Zhang's calibration method. The experimental results show that the measurement accuracy can reach 0.05mm while maintain high level of real-time performance.
关键词：Keywordsmachine visionnon-contact measurementstructured lightBIWquality inspection