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Generating Topologically Consistent BIM Models of Utility Tunnels from Point Clouds

The development and utilization of urban underground space is an important way to solve the “great urban disease”. As one of the most important types of urban underground foundations, utility tunnels have become increasingly popular in municipal construction. The investigation of utility tunnels is...

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Autores principales: Yang, Lei, Zhang, Fangshuo, Yang, Fan, Qian, Peng, Wang, Quankai, Wu, Yunjie, Wang, Keli
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10384953/
https://www.ncbi.nlm.nih.gov/pubmed/37514796
http://dx.doi.org/10.3390/s23146503
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author Yang, Lei
Zhang, Fangshuo
Yang, Fan
Qian, Peng
Wang, Quankai
Wu, Yunjie
Wang, Keli
author_facet Yang, Lei
Zhang, Fangshuo
Yang, Fan
Qian, Peng
Wang, Quankai
Wu, Yunjie
Wang, Keli
author_sort Yang, Lei
collection PubMed
description The development and utilization of urban underground space is an important way to solve the “great urban disease”. As one of the most important types of urban underground foundations, utility tunnels have become increasingly popular in municipal construction. The investigation of utility tunnels is a general task and three-dimensional laser scanning technology has played a significant role in surveying and data acquisition. However, three-dimensional laser scanning technology suffers from noise and occlusion in narrow congested utility tunnel spaces, and the acquired point clouds are imperfect; hence, errors and redundancies are introduced in the extracted geometric elements. The topology of reconstructed BIM objects cannot be ensured. Therefore, in this study, a hierarchical segmentation method for point clouds and a topology reconstruction method for building information model (BIM) objects in utility tunnels are proposed. The point cloud is segmented into facades, planes, and pipelines hierarchically. An improved mean-shift algorithm is proposed to extract wall line features and a local symmetry-based medial axis extraction algorithm is proposed to extract pipelines from point clouds. A topology reconstruction method that searches for the neighbor information of wall and pipeline centerlines and establishes collinear, perpendicular, and intersecting situations is used to reconstruct a topologically consistent 3D model of a utility tunnel. An experiment on the Guangzhou’s Nansha District dataset successfully reconstructed 24 BIM wall objects and 12 pipelines within the utility tunnel, verifying the efficiency of the method.
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spelling pubmed-103849532023-07-30 Generating Topologically Consistent BIM Models of Utility Tunnels from Point Clouds Yang, Lei Zhang, Fangshuo Yang, Fan Qian, Peng Wang, Quankai Wu, Yunjie Wang, Keli Sensors (Basel) Article The development and utilization of urban underground space is an important way to solve the “great urban disease”. As one of the most important types of urban underground foundations, utility tunnels have become increasingly popular in municipal construction. The investigation of utility tunnels is a general task and three-dimensional laser scanning technology has played a significant role in surveying and data acquisition. However, three-dimensional laser scanning technology suffers from noise and occlusion in narrow congested utility tunnel spaces, and the acquired point clouds are imperfect; hence, errors and redundancies are introduced in the extracted geometric elements. The topology of reconstructed BIM objects cannot be ensured. Therefore, in this study, a hierarchical segmentation method for point clouds and a topology reconstruction method for building information model (BIM) objects in utility tunnels are proposed. The point cloud is segmented into facades, planes, and pipelines hierarchically. An improved mean-shift algorithm is proposed to extract wall line features and a local symmetry-based medial axis extraction algorithm is proposed to extract pipelines from point clouds. A topology reconstruction method that searches for the neighbor information of wall and pipeline centerlines and establishes collinear, perpendicular, and intersecting situations is used to reconstruct a topologically consistent 3D model of a utility tunnel. An experiment on the Guangzhou’s Nansha District dataset successfully reconstructed 24 BIM wall objects and 12 pipelines within the utility tunnel, verifying the efficiency of the method. MDPI 2023-07-18 /pmc/articles/PMC10384953/ /pubmed/37514796 http://dx.doi.org/10.3390/s23146503 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Yang, Lei
Zhang, Fangshuo
Yang, Fan
Qian, Peng
Wang, Quankai
Wu, Yunjie
Wang, Keli
Generating Topologically Consistent BIM Models of Utility Tunnels from Point Clouds
title Generating Topologically Consistent BIM Models of Utility Tunnels from Point Clouds
title_full Generating Topologically Consistent BIM Models of Utility Tunnels from Point Clouds
title_fullStr Generating Topologically Consistent BIM Models of Utility Tunnels from Point Clouds
title_full_unstemmed Generating Topologically Consistent BIM Models of Utility Tunnels from Point Clouds
title_short Generating Topologically Consistent BIM Models of Utility Tunnels from Point Clouds
title_sort generating topologically consistent bim models of utility tunnels from point clouds
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10384953/
https://www.ncbi.nlm.nih.gov/pubmed/37514796
http://dx.doi.org/10.3390/s23146503
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