Automatic Building Boundary Extraction from Airborne LiDAR Data
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.14393/rbcv71n3-46515 http://hdl.handle.net/11449/247585 |
Resumo: | This paper aims to evaluate the quality of the automatic extraction of building contours from airborne LiDAR data in order to verify if the errors obtained in the building roof areas are compatible with the criteria established by the Brazilian Law n° 10.406, January 10th, 2002. Two approaches were compared: one present in LAStools software (lasboundary) and the other being a variant of the α-shape algorithm, whose parameter α is estimated adaptively for each building. In addition, both approaches were applied to two datasets, one with an average point density of 5.8 pts/m2 and the other with 12.5 pts/m2. In this work three quality parameters were computed: F-score, relative error in area, and PoLiS metric. The assessment of the results indicates that most of the results met the criteria established by the above-mentioned law. The variant of α-shape algorithm seems to be better than the lasboundary, indicating that the dynamic approach to determine the parameter α contributes to the quality, especially on complex buildings. Finally, the use of the point cloud with higher average point density results in higher accuracy in the building boundary extraction. |
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Repositório Institucional da UNESP |
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Automatic Building Boundary Extraction from Airborne LiDAR DataExtração Automática de Contornos de Edificações a partir de Dados LiDAR AerotransportadoAirborne LiDAR dataBuilding boundary extractionα-shapeThis paper aims to evaluate the quality of the automatic extraction of building contours from airborne LiDAR data in order to verify if the errors obtained in the building roof areas are compatible with the criteria established by the Brazilian Law n° 10.406, January 10th, 2002. Two approaches were compared: one present in LAStools software (lasboundary) and the other being a variant of the α-shape algorithm, whose parameter α is estimated adaptively for each building. In addition, both approaches were applied to two datasets, one with an average point density of 5.8 pts/m2 and the other with 12.5 pts/m2. In this work three quality parameters were computed: F-score, relative error in area, and PoLiS metric. The assessment of the results indicates that most of the results met the criteria established by the above-mentioned law. The variant of α-shape algorithm seems to be better than the lasboundary, indicating that the dynamic approach to determine the parameter α contributes to the quality, especially on complex buildings. Finally, the use of the point cloud with higher average point density results in higher accuracy in the building boundary extraction.Universidade Estadual Paulista (UNESP) Faculdade de Ciências e Tecnologia (FCT) Programa de Pós-Graduação em Ciências Cartográficas (PPGCC)Universidade Estadual Paulista (UNESP) Faculdade de Ciências e Tecnologia (FCT) Departamento de CartografiaUniversidade Estadual Paulista (UNESP) Faculdade de Ciências e Tecnologia (FCT) Programa de Pós-Graduação em Ciências Cartográficas (PPGCC)Universidade Estadual Paulista (UNESP) Faculdade de Ciências e Tecnologia (FCT) Departamento de CartografiaUniversidade Estadual Paulista (UNESP)Carrilho, André Caceres [UNESP]dos Santos, Renato César [UNESP]Pessoa, Guilherme Gomes [UNESP]Galo, Mauricio [UNESP]2023-07-29T13:20:05Z2023-07-29T13:20:05Z2019-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article832-855http://dx.doi.org/10.14393/rbcv71n3-46515Revista Brasileira de Cartografia, v. 71, n. 3, p. 832-855, 2019.1808-09360560-4613http://hdl.handle.net/11449/24758510.14393/rbcv71n3-465152-s2.0-85114167007Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporRevista Brasileira de Cartografiainfo:eu-repo/semantics/openAccess2024-06-18T15:01:39Zoai:repositorio.unesp.br:11449/247585Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:48:41.362644Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Automatic Building Boundary Extraction from Airborne LiDAR Data Extração Automática de Contornos de Edificações a partir de Dados LiDAR Aerotransportado |
title |
Automatic Building Boundary Extraction from Airborne LiDAR Data |
spellingShingle |
Automatic Building Boundary Extraction from Airborne LiDAR Data Carrilho, André Caceres [UNESP] Airborne LiDAR data Building boundary extraction α-shape |
title_short |
Automatic Building Boundary Extraction from Airborne LiDAR Data |
title_full |
Automatic Building Boundary Extraction from Airborne LiDAR Data |
title_fullStr |
Automatic Building Boundary Extraction from Airborne LiDAR Data |
title_full_unstemmed |
Automatic Building Boundary Extraction from Airborne LiDAR Data |
title_sort |
Automatic Building Boundary Extraction from Airborne LiDAR Data |
author |
Carrilho, André Caceres [UNESP] |
author_facet |
Carrilho, André Caceres [UNESP] dos Santos, Renato César [UNESP] Pessoa, Guilherme Gomes [UNESP] Galo, Mauricio [UNESP] |
author_role |
author |
author2 |
dos Santos, Renato César [UNESP] Pessoa, Guilherme Gomes [UNESP] Galo, Mauricio [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Carrilho, André Caceres [UNESP] dos Santos, Renato César [UNESP] Pessoa, Guilherme Gomes [UNESP] Galo, Mauricio [UNESP] |
dc.subject.por.fl_str_mv |
Airborne LiDAR data Building boundary extraction α-shape |
topic |
Airborne LiDAR data Building boundary extraction α-shape |
description |
This paper aims to evaluate the quality of the automatic extraction of building contours from airborne LiDAR data in order to verify if the errors obtained in the building roof areas are compatible with the criteria established by the Brazilian Law n° 10.406, January 10th, 2002. Two approaches were compared: one present in LAStools software (lasboundary) and the other being a variant of the α-shape algorithm, whose parameter α is estimated adaptively for each building. In addition, both approaches were applied to two datasets, one with an average point density of 5.8 pts/m2 and the other with 12.5 pts/m2. In this work three quality parameters were computed: F-score, relative error in area, and PoLiS metric. The assessment of the results indicates that most of the results met the criteria established by the above-mentioned law. The variant of α-shape algorithm seems to be better than the lasboundary, indicating that the dynamic approach to determine the parameter α contributes to the quality, especially on complex buildings. Finally, the use of the point cloud with higher average point density results in higher accuracy in the building boundary extraction. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-07-01 2023-07-29T13:20:05Z 2023-07-29T13:20:05Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.14393/rbcv71n3-46515 Revista Brasileira de Cartografia, v. 71, n. 3, p. 832-855, 2019. 1808-0936 0560-4613 http://hdl.handle.net/11449/247585 10.14393/rbcv71n3-46515 2-s2.0-85114167007 |
url |
http://dx.doi.org/10.14393/rbcv71n3-46515 http://hdl.handle.net/11449/247585 |
identifier_str_mv |
Revista Brasileira de Cartografia, v. 71, n. 3, p. 832-855, 2019. 1808-0936 0560-4613 10.14393/rbcv71n3-46515 2-s2.0-85114167007 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Revista Brasileira de Cartografia |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
832-855 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129120767311872 |