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Precise determination of mini railway track with ground based laser scanning

Meng, Xiaolin; Liu, Chun; Li, Nan; Joe, Ryding

Authors

Xiaolin Meng xiaolin.meng@nottingham.ac.uk

Chun Liu

Nan Li

Ryding Joe



Abstract

In order to determine the relative or absolute railway track and foundation deformation, ground-based laser scanning technology is utilised in this study to attain a precise 3D track reference. Located at the University of Nottingham’s Innovation Park, the newly built Nottingham Geospatial Building, where the Nottingham Geospatial Institute is based, has a roof laboratory that has unique testing facilities. This includes a mini railway track of 120m in length and other long-term monitoring monuments. A test was performed to precisely determine the ground-truth location of the railway track using a phase-based laser scanner for the formation of a standard reference. A real three dimensional mesh of the laser scanning data forms the basis for the line extraction. The compactly supported radial basis function (CS-RBF) was employed to determine the track features based on a 3D mesh approach. To verify the achievable accuracy of laser scanning technology, ground truth points measured with geodetic methods are compared with the extracted sample points and the results are presented in this paper.

Journal Article Type Article
Publication Date Jan 1, 2014
Journal Survey Review
Print ISSN 0039-6265
Electronic ISSN 1752-2706
Publisher Taylor & Francis
Peer Reviewed Peer Reviewed
Volume 46
Issue 336
APA6 Citation Meng, X., Liu, C., Li, N., & Joe, R. (2014). Precise determination of mini railway track with ground based laser scanning. Survey Review, 46(336), doi:10.1179/1752270613Y.0000000072
DOI https://doi.org/10.1179/1752270613Y.0000000072
Keywords Railway track, Ground based laser scanning, Collision modelling, Deformation of high speed railway
Publisher URL http://www.tandfonline.com/doi/full/10.1179/1752270613Y.0000000072#.V5X4waKAe5o
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf
Additional Information Author's accepted manuscript has a different title from published version.

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Precision 3D Measurement of the Roof Lab-Submission Version.pdf (240 Kb)
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Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf



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