Displacement Estimation Error in Laser Scanning Monitoring of Retaining Structures Considering Roughness

Point clouds were obtained after laser scanning of the concrete panel, SMW, and sheet pile which is most widely used in retaining structures. The surface condition of the point cloud affects the displacement calculation, and hence both local roughness and global curvature of each point cloud were an...

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Autores principales:	Hyungjoon Seo, Yang Zhao, Cheng Chen
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	point cloud laser scanning retaining structure C2C C2M M3C2 Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/3dbf3c66d0df4c14a77b67cb7b9d0a3b
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id	oai:doaj.org-article:3dbf3c66d0df4c14a77b67cb7b9d0a3b
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spelling	oai:doaj.org-article:3dbf3c66d0df4c14a77b67cb7b9d0a3b2021-11-11T19:18:25ZDisplacement Estimation Error in Laser Scanning Monitoring of Retaining Structures Considering Roughness10.3390/s212173701424-8220https://doaj.org/article/3dbf3c66d0df4c14a77b67cb7b9d0a3b2021-11-01T00:00:00Zhttps://www.mdpi.com/1424-8220/21/21/7370https://doaj.org/toc/1424-8220Point clouds were obtained after laser scanning of the concrete panel, SMW, and sheet pile which is most widely used in retaining structures. The surface condition of the point cloud affects the displacement calculation, and hence both local roughness and global curvature of each point cloud were analyzed using the different sizes of the kernel. The curvature of the three retaining structures was also analyzed by the azimuth angle. In this paper, artificial displacements are generated for the point clouds of 100%, 80%, 60%, 40%, and 20% of the retaining structures, and displacement and analysis errors were calculated using the C2C, C2M, and M3C2 methods. C2C method is affected by the resolution of the point cloud, and the C2M method underestimates the displacement by the location of the points in the curvature of the retaining structures. M3C2 method had the lowest error, and the optimized M3C2 parameters for analyzing the displacement were presented.Hyungjoon SeoYang ZhaoCheng ChenMDPI AGarticlepoint cloudlaser scanningretaining structureC2CC2MM3C2Chemical technologyTP1-1185ENSensors, Vol 21, Iss 7370, p 7370 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	point cloud laser scanning retaining structure C2C C2M M3C2 Chemical technology TP1-1185
spellingShingle	point cloud laser scanning retaining structure C2C C2M M3C2 Chemical technology TP1-1185 Hyungjoon Seo Yang Zhao Cheng Chen Displacement Estimation Error in Laser Scanning Monitoring of Retaining Structures Considering Roughness
description	Point clouds were obtained after laser scanning of the concrete panel, SMW, and sheet pile which is most widely used in retaining structures. The surface condition of the point cloud affects the displacement calculation, and hence both local roughness and global curvature of each point cloud were analyzed using the different sizes of the kernel. The curvature of the three retaining structures was also analyzed by the azimuth angle. In this paper, artificial displacements are generated for the point clouds of 100%, 80%, 60%, 40%, and 20% of the retaining structures, and displacement and analysis errors were calculated using the C2C, C2M, and M3C2 methods. C2C method is affected by the resolution of the point cloud, and the C2M method underestimates the displacement by the location of the points in the curvature of the retaining structures. M3C2 method had the lowest error, and the optimized M3C2 parameters for analyzing the displacement were presented.
format	article
author	Hyungjoon Seo Yang Zhao Cheng Chen
author_facet	Hyungjoon Seo Yang Zhao Cheng Chen
author_sort	Hyungjoon Seo
title	Displacement Estimation Error in Laser Scanning Monitoring of Retaining Structures Considering Roughness
title_short	Displacement Estimation Error in Laser Scanning Monitoring of Retaining Structures Considering Roughness
title_full	Displacement Estimation Error in Laser Scanning Monitoring of Retaining Structures Considering Roughness
title_fullStr	Displacement Estimation Error in Laser Scanning Monitoring of Retaining Structures Considering Roughness
title_full_unstemmed	Displacement Estimation Error in Laser Scanning Monitoring of Retaining Structures Considering Roughness
title_sort	displacement estimation error in laser scanning monitoring of retaining structures considering roughness
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/3dbf3c66d0df4c14a77b67cb7b9d0a3b
work_keys_str_mv	AT hyungjoonseo displacementestimationerrorinlaserscanningmonitoringofretainingstructuresconsideringroughness AT yangzhao displacementestimationerrorinlaserscanningmonitoringofretainingstructuresconsideringroughness AT chengchen displacementestimationerrorinlaserscanningmonitoringofretainingstructuresconsideringroughness
_version_	1718431578564067328

Displacement Estimation Error in Laser Scanning Monitoring of Retaining Structures Considering Roughness

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