Paper
14 October 2022 Defects detection of shield tunnel segment based on terrestrial laser point cloud
Xiaoyu Zhang, Lei Bu, Jinlong Teng, Yufeng Shi
Author Affiliations +
Proceedings Volume 12343, 2nd International Conference on Laser, Optics and Optoelectronic Technology (LOPET 2022); 1234329 (2022) https://doi.org/10.1117/12.2649511
Event: 2nd International Conference on Laser, Optics and Optoelectronic Technology (LOPET 2022), 2022, Qingdao, China
Abstract
The defects of shield tunnel segments, such as dislocation, cracking and falling off, are one of the hot research topics in underground engineering. Based on data driven thoughts, the point cloud of shield tunnel is expanded into a binary image. Due to the image contains the mapping topological relationship between the original point cloud and the pixel, the morphological algorithm was used to identify the splice joints between rings, segmentation of tunneling image expansion is realized ring by ring. Then, the laser point cloud data were segmented at the segment scale, and the defects could be identified and detected in the segment. The experimental results show that the proposed method could effectively identify the segment defects.
© (2022) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Xiaoyu Zhang, Lei Bu, Jinlong Teng, and Yufeng Shi "Defects detection of shield tunnel segment based on terrestrial laser point cloud", Proc. SPIE 12343, 2nd International Conference on Laser, Optics and Optoelectronic Technology (LOPET 2022), 1234329 (14 October 2022); https://doi.org/10.1117/12.2649511
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
Image segmentation

Clouds

3D image processing

Defect detection

3D modeling

Image processing algorithms and systems

Safety

RELATED CONTENT

Fast planar segmentation of depth images
Proceedings of SPIE (March 16 2015)
Model-based matching using elliptical features
Proceedings of SPIE (May 24 1996)
Segmentation of stereo terrain images
Proceedings of SPIE (June 02 2000)
Weld bead extraction based on point cloud segmentation
Proceedings of SPIE (September 15 2021)

Back to Top