Automatic extraction of 3d building meshes from LiDAR data

Terrestrial laser scanning and drone-based scanning are often combined to gain a complete picture of the external envelopes of buildings. While the resulting data sets are easy to understand for humans, extracting any semantical information from the data is a challenging task. Creating a BIM model f...

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Main Authors: Jan Voříšek, Bořek Patzák, Daniel Rypl
Format: Article
Language:English
Published: CTU Central Library 2022-03-01
Series:Acta Polytechnica CTU Proceedings
Subjects:
Online Access:https://ojs.cvut.cz/ojs/index.php/APP/article/view/8125
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author Jan Voříšek
Bořek Patzák
Daniel Rypl
author_facet Jan Voříšek
Bořek Patzák
Daniel Rypl
author_sort Jan Voříšek
collection DOAJ
description Terrestrial laser scanning and drone-based scanning are often combined to gain a complete picture of the external envelopes of buildings. While the resulting data sets are easy to understand for humans, extracting any semantical information from the data is a challenging task. Creating a BIM model for large cities is desirable, especially for planning and inventory purposes. Nowadays, engineers manually separate buildings and draw corresponding floor plans or any other required entities, making creating such a model nearly impossible for the whole city. In this contribution, we present the design and concept of a C++ library that provides fundamental algorithmic tools for automated detection of the ground points, separation of buildings into individual point clouds, and segmentation of walls and roofs. The buildings’ 3D model (both volumetric and surface mesh) can be constructed using the data. Furthermore, the building area and volume calculation can be performed on such a model, which can then be compared with the existing city plan.
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spelling doaj.art-9c1b5e7eee0e4dbf9917adfc9cbee4a72022-12-22T00:46:08ZengCTU Central LibraryActa Polytechnica CTU Proceedings2336-53822022-03-0134133–137133–13710.14311/APP.2022.34.01335365Automatic extraction of 3d building meshes from LiDAR dataJan Voříšek0Bořek Patzák1Daniel Rypl2Czech Technical University in Prague, Faculty of Civil Engineering, Thákurova 7, 166 29 Prague 6, Czech RepublicCzech Technical University in Prague, Faculty of Civil Engineering, Thákurova 7, 166 29 Prague 6, Czech RepublicCzech Technical University in Prague, Faculty of Civil Engineering, Thákurova 7, 166 29 Prague 6, Czech RepublicTerrestrial laser scanning and drone-based scanning are often combined to gain a complete picture of the external envelopes of buildings. While the resulting data sets are easy to understand for humans, extracting any semantical information from the data is a challenging task. Creating a BIM model for large cities is desirable, especially for planning and inventory purposes. Nowadays, engineers manually separate buildings and draw corresponding floor plans or any other required entities, making creating such a model nearly impossible for the whole city. In this contribution, we present the design and concept of a C++ library that provides fundamental algorithmic tools for automated detection of the ground points, separation of buildings into individual point clouds, and segmentation of walls and roofs. The buildings’ 3D model (both volumetric and surface mesh) can be constructed using the data. Furthermore, the building area and volume calculation can be performed on such a model, which can then be compared with the existing city plan.https://ojs.cvut.cz/ojs/index.php/APP/article/view/8125laser scanningbimpoint cloudcity planning
spellingShingle Jan Voříšek
Bořek Patzák
Daniel Rypl
Automatic extraction of 3d building meshes from LiDAR data
Acta Polytechnica CTU Proceedings
laser scanning
bim
point cloud
city planning
title Automatic extraction of 3d building meshes from LiDAR data
title_full Automatic extraction of 3d building meshes from LiDAR data
title_fullStr Automatic extraction of 3d building meshes from LiDAR data
title_full_unstemmed Automatic extraction of 3d building meshes from LiDAR data
title_short Automatic extraction of 3d building meshes from LiDAR data
title_sort automatic extraction of 3d building meshes from lidar data
topic laser scanning
bim
point cloud
city planning
url https://ojs.cvut.cz/ojs/index.php/APP/article/view/8125
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AT borekpatzak automaticextractionof3dbuildingmeshesfromlidardata
AT danielrypl automaticextractionof3dbuildingmeshesfromlidardata