{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,31]],"date-time":"2026-03-31T02:26:55Z","timestamp":1774924015757,"version":"3.50.1"},"reference-count":25,"publisher":"MDPI AG","issue":"20","license":[{"start":{"date-parts":[[2021,10,9]],"date-time":"2021-10-09T00:00:00Z","timestamp":1633737600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["No.51935002"],"award-info":[{"award-number":["No.51935002"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"the introduced innovative R&amp;D team of Dongguan: \u201cTrain wheelset geometric parameters intelli-gent testing and entire life-cycle management system development &amp; industrial application innovative research team\u201d","award":["NO.201536000600028"],"award-info":[{"award-number":["NO.201536000600028"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Line-structured light has been widely used in the field of railway measurement, owing to its high capability of anti-interference, fast scanning speed and high accuracy. Traditional calibration methods of line-structured light sensors have the disadvantages of long calibration time and complicated calibration process, which is not suitable for railway field application. In this paper, a fast calibration method based on a self-developed calibration device was proposed. Compared with traditional methods, the calibration process is simplified and the calibration time is greatly shortened. This method does not need to extract light strips; thus, the influence of ambient light on the measurement is reduced. In addition, the calibration error resulting from the misalignment was corrected by epipolar constraint, and the calibration accuracy was improved. Calibration experiments in laboratory and field tests were conducted to verify the effectiveness of this method, and the results showed that the proposed method can achieve a better calibration accuracy compared to a traditional calibration method based on Zhang\u2019s method.<\/jats:p>","DOI":"10.3390\/s21206717","type":"journal-article","created":{"date-parts":[[2021,10,10]],"date-time":"2021-10-10T21:37:49Z","timestamp":1633901869000},"page":"6717","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["On-Site Calibration Method for Line-Structured Light Sensor-Based Railway Wheel Size Measurement System"],"prefix":"10.3390","volume":"21","author":[{"given":"Yunfeng","family":"Ran","sequence":"first","affiliation":[{"name":"Key Laboratory of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing 100044, China"}]},{"given":"Qixin","family":"He","sequence":"additional","affiliation":[{"name":"Key Laboratory of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing 100044, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2854-044X","authenticated-orcid":false,"given":"Qibo","family":"Feng","sequence":"additional","affiliation":[{"name":"Key Laboratory of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing 100044, China"},{"name":"Dongguan Nannar Electronic Technology Company Ltd., Dongguan 523050, China"}]},{"given":"Jianying","family":"Cui","sequence":"additional","affiliation":[{"name":"Key Laboratory of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing 100044, China"}]}],"member":"1968","published-online":{"date-parts":[[2021,10,9]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"606","DOI":"10.1080\/00423114.2016.1147588","article-title":"Partial-profilogram reconstruction method to measure the geometric parameters of wheels in dynamic condition","volume":"54","author":"Bernal","year":"2016","journal-title":"Veh. 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