Filtragem de nuvem laser para geração de MDT por krigagem
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S1982-21702017000100013 http://hdl.handle.net/11449/174387 |
Resumo: | This paper presents a method of filtering point clouds generated by laser scanning, to obtain a Digital Terrain Model (DTM). The filtering process is performed based on an approximated surface obtained from urban road points. These points are sampled in straight lines detected by Steger in the intensity image of the laser pulse. The main assumption of the method is that the ground has smooth behavior inside the block, so the sample laser points collected along the urban roads allow, using the kriging interpolation method, a suitable representation of the land inside the block, that is, relatively close to the ground point laser in these regions. Thus, filtering is performed by proximity of the original cloud laser points with approximate surface. For thus a DTM is obtained from the new sample by kriging interpolation method, increasing the description of the surface. From the experiments it was possible to verify the feasibility of the proposed method, with results of good visual consistency and satisfactory numerical indicators. |
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Repositório Institucional da UNESP |
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Filtragem de nuvem laser para geração de MDT por krigagemLaser point cloud filtering for DTM generation using krigingDTMFilteringKrigingThis paper presents a method of filtering point clouds generated by laser scanning, to obtain a Digital Terrain Model (DTM). The filtering process is performed based on an approximated surface obtained from urban road points. These points are sampled in straight lines detected by Steger in the intensity image of the laser pulse. The main assumption of the method is that the ground has smooth behavior inside the block, so the sample laser points collected along the urban roads allow, using the kriging interpolation method, a suitable representation of the land inside the block, that is, relatively close to the ground point laser in these regions. Thus, filtering is performed by proximity of the original cloud laser points with approximate surface. For thus a DTM is obtained from the new sample by kriging interpolation method, increasing the description of the surface. From the experiments it was possible to verify the feasibility of the proposed method, with results of good visual consistency and satisfactory numerical indicators.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)UNESP – Univ. Estadual Paulista Faculdade de Ciências e Tecnologia – FCT Departamento de Cartografia, Rua Roberto Simonsen, 305UNEMAT - Univ. Estado de Mato Grosso Fac. de Ciências Exatas e Tecnológicas – FACET Departamento de Matemática, Av. dos Ingás, 3001UNESP – Univ. Estadual Paulista Faculdade de Ciências e Tecnologia – FCT Departamento de Cartografia, Rua Roberto Simonsen, 305FAPESP: 2012/22332-2Universidade Estadual Paulista (Unesp)Fac. de Ciências Exatas e Tecnológicas – FACETFernandes, Vanessa Jordão Marcato [UNESP]de Oliveira Martins, Érico Fernando [UNESP]Dal Poz, Aluir Porfírio [UNESP]Imai, Nilton Nobuhiro [UNESP]2018-12-11T17:10:52Z2018-12-11T17:10:52Z2017-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article196-212application/pdfhttp://dx.doi.org/10.1590/S1982-21702017000100013Boletim de Ciencias Geodesicas, v. 23, n. 1, p. 196-212, 2017.1982-21701413-4853http://hdl.handle.net/11449/17438710.1590/S1982-21702017000100013S1982-217020170001001962-s2.0-85016290621S1982-21702017000100196.pdf29857711025053300000-0003-0516-0567Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporBoletim de Ciencias Geodesicas0,188info:eu-repo/semantics/openAccess2024-06-18T15:01:05Zoai:repositorio.unesp.br:11449/174387Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-06-18T15:01:05Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Filtragem de nuvem laser para geração de MDT por krigagem Laser point cloud filtering for DTM generation using kriging |
title |
Filtragem de nuvem laser para geração de MDT por krigagem |
spellingShingle |
Filtragem de nuvem laser para geração de MDT por krigagem Fernandes, Vanessa Jordão Marcato [UNESP] DTM Filtering Kriging |
title_short |
Filtragem de nuvem laser para geração de MDT por krigagem |
title_full |
Filtragem de nuvem laser para geração de MDT por krigagem |
title_fullStr |
Filtragem de nuvem laser para geração de MDT por krigagem |
title_full_unstemmed |
Filtragem de nuvem laser para geração de MDT por krigagem |
title_sort |
Filtragem de nuvem laser para geração de MDT por krigagem |
author |
Fernandes, Vanessa Jordão Marcato [UNESP] |
author_facet |
Fernandes, Vanessa Jordão Marcato [UNESP] de Oliveira Martins, Érico Fernando [UNESP] Dal Poz, Aluir Porfírio [UNESP] Imai, Nilton Nobuhiro [UNESP] |
author_role |
author |
author2 |
de Oliveira Martins, Érico Fernando [UNESP] Dal Poz, Aluir Porfírio [UNESP] Imai, Nilton Nobuhiro [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Fac. de Ciências Exatas e Tecnológicas – FACET |
dc.contributor.author.fl_str_mv |
Fernandes, Vanessa Jordão Marcato [UNESP] de Oliveira Martins, Érico Fernando [UNESP] Dal Poz, Aluir Porfírio [UNESP] Imai, Nilton Nobuhiro [UNESP] |
dc.subject.por.fl_str_mv |
DTM Filtering Kriging |
topic |
DTM Filtering Kriging |
description |
This paper presents a method of filtering point clouds generated by laser scanning, to obtain a Digital Terrain Model (DTM). The filtering process is performed based on an approximated surface obtained from urban road points. These points are sampled in straight lines detected by Steger in the intensity image of the laser pulse. The main assumption of the method is that the ground has smooth behavior inside the block, so the sample laser points collected along the urban roads allow, using the kriging interpolation method, a suitable representation of the land inside the block, that is, relatively close to the ground point laser in these regions. Thus, filtering is performed by proximity of the original cloud laser points with approximate surface. For thus a DTM is obtained from the new sample by kriging interpolation method, increasing the description of the surface. From the experiments it was possible to verify the feasibility of the proposed method, with results of good visual consistency and satisfactory numerical indicators. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-01-01 2018-12-11T17:10:52Z 2018-12-11T17:10:52Z |
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/10.1590/S1982-21702017000100013 Boletim de Ciencias Geodesicas, v. 23, n. 1, p. 196-212, 2017. 1982-2170 1413-4853 http://hdl.handle.net/11449/174387 10.1590/S1982-21702017000100013 S1982-21702017000100196 2-s2.0-85016290621 S1982-21702017000100196.pdf 2985771102505330 0000-0003-0516-0567 |
url |
http://dx.doi.org/10.1590/S1982-21702017000100013 http://hdl.handle.net/11449/174387 |
identifier_str_mv |
Boletim de Ciencias Geodesicas, v. 23, n. 1, p. 196-212, 2017. 1982-2170 1413-4853 10.1590/S1982-21702017000100013 S1982-21702017000100196 2-s2.0-85016290621 S1982-21702017000100196.pdf 2985771102505330 0000-0003-0516-0567 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Boletim de Ciencias Geodesicas 0,188 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
196-212 application/pdf |
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_ |
1803045221252988928 |