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Vision Measurement of Tunnel Structures with Robust Modelling and Deep Learning Algorithms

Sensors (Basel, Switzerland), 2020-09, Vol.20 (17), p.4945 [Peer Reviewed Journal]

2020. This work is licensed under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. ;2020 by the authors. 2020 ;ISSN: 1424-8220 ;EISSN: 1424-8220 ;DOI: 10.3390/s20174945 ;PMID: 32882882

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  • Title:
    Vision Measurement of Tunnel Structures with Robust Modelling and Deep Learning Algorithms
  • Author: Xu, Xiangyang ; Yang, Hao
  • Subjects: 3D modeling ; Accuracy ; Algorithms ; camera array ; crack detection ; Cracks ; Damage ; Data analysis ; Data processing ; Deep learning ; Deformation ; Deformation analysis ; Digital cameras ; Flaw detection ; Inspection ; Investigations ; Lasers ; Machine learning ; Methods ; Modelling ; Railway engineering ; Railway tunnels ; robust modelling ; Robustness ; Semantics ; Subway tunnels ; Three dimensional models ; Transportation systems ; tunnel inspection ; Units of measurement ; Vision
  • Is Part Of: Sensors (Basel, Switzerland), 2020-09, Vol.20 (17), p.4945
  • Description: The health monitoring of tunnel structures is vital to the safe operation of railway transportation systems. With the increasing mileage of tunnels, regular inspection and health monitoring are urgently demanded for the tunnel structures, especially for information regarding deformation and damage. However, traditional methods of tunnel inspection are time-consuming, expensive and highly dependent on human subjectivity. In this paper, an automatic tunnel monitoring method is investigated based on image data which is collected through the moving vision measurement unit consisting of camera array. Furthermore, geometric modelling and crack inspection algorithms are proposed where a robust three-dimensional tunnel model is reconstructed utilizing a B-spline method and crack identification is conducted by means of a Mask R-CNN network. The innovation of this investigation is that we combine the robust modelling which could be applied for the deformation analysis and the crack detection where a deep learning method is employed to recognize the tunnel cracks intelligently based on image sensors. In this study, experiments were conducted on a subway tunnel structure several kilometers long, and a robust three-dimensional model is generated and the cracks are identified automatically with the image data. The superiority of this proposal is that the comprehensive information of geometry deformation and crack damage can ensure the reliability and improve the accuracy of health monitoring.
  • Publisher: Basel: MDPI AG
  • Language: English
  • Identifier: ISSN: 1424-8220
    EISSN: 1424-8220
    DOI: 10.3390/s20174945
    PMID: 32882882
  • Source: Geneva Foundation Free Medical Journals at publisher websites
    PubMed Central
    Directory of Open Access Journals
    ROAD: Directory of Open Access Scholarly Resources
    ProQuest Central
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