Método monoscópico para a determinação automática da altura de edifícios em fotografias aéreas
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://hdl.handle.net/11449/225249 |
Resumo: | This paper proposes a monoscopic method for automatic determination of building's heights in digital photographs areas, based on radial displacement of points in the plan image and geometry at the time the photo is obtained. Determination of the buildings' heights can be used to model the surface in urban areas, urban planning and management, among others. The proposed methodology employs a set of steps to detect arranged radially from the system of photogrammetric coordinates, which characterizes the lateral edges of buildings present in the photo. In a first stage is performed the reduction of the searching area through detection of shadows projected by buildings, generating sub-images of the areas around each of the detected shadow. Then, for each sub-image, the edges are automatically extracted, and tests of consistency are applied for it in order to be characterized as segments of straight arranged radially. Next, with the lateral edges selected and the knowledge of the flight height, the buildings' heights can be calculated. The experimental results obtained with real images showed that the proposed approach is suitable to perform the automatic identification of the buildings height in digital images. |
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Repositório Institucional da UNESP |
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Método monoscópico para a determinação automática da altura de edifícios em fotografias aéreasMonoscopic method for the automatic determination of height of buildings in air photosHeight of buildingsRelief displacementShadows detectionThis paper proposes a monoscopic method for automatic determination of building's heights in digital photographs areas, based on radial displacement of points in the plan image and geometry at the time the photo is obtained. Determination of the buildings' heights can be used to model the surface in urban areas, urban planning and management, among others. The proposed methodology employs a set of steps to detect arranged radially from the system of photogrammetric coordinates, which characterizes the lateral edges of buildings present in the photo. In a first stage is performed the reduction of the searching area through detection of shadows projected by buildings, generating sub-images of the areas around each of the detected shadow. Then, for each sub-image, the edges are automatically extracted, and tests of consistency are applied for it in order to be characterized as segments of straight arranged radially. Next, with the lateral edges selected and the knowledge of the flight height, the buildings' heights can be calculated. The experimental results obtained with real images showed that the proposed approach is suitable to perform the automatic identification of the buildings height in digital images.UNESP - Universidade Estadual Paulista Programa de Pós-Graduação em Ciências Cartográficas, Rua Roberto Simonsen, 305, Presidente Prudente 19060-900UNESP - Universidade Estadual Paulista FCT - Faculdade de Ciências e Tecnologia Departamento de Cartografia, Rua Roberto Simonsen, 305, Presidente Prudente 19060-900UNESP - Universidade Estadual Paulista Programa de Pós-Graduação em Ciências Cartográficas, Rua Roberto Simonsen, 305, Presidente Prudente 19060-900UNESP - Universidade Estadual Paulista FCT - Faculdade de Ciências e Tecnologia Departamento de Cartografia, Rua Roberto Simonsen, 305, Presidente Prudente 19060-900Universidade Estadual Paulista (UNESP)Demarqui, Edgar Nogueira [UNESP]Hasegawa, Júlio Kiyoshi [UNESP]Galo, Mauricio [UNESP]2022-04-28T20:43:09Z2022-04-28T20:43:09Z2008-04-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article272-293Boletim de Ciencias Geodesicas, v. 14, n. 2, p. 272-293, 2008.1413-4853http://hdl.handle.net/11449/2252492-s2.0-49549096201Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporBoletim de Ciencias Geodesicasinfo:eu-repo/semantics/openAccess2024-06-18T15:01:54Zoai:repositorio.unesp.br:11449/225249Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:56:18.285733Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Método monoscópico para a determinação automática da altura de edifícios em fotografias aéreas Monoscopic method for the automatic determination of height of buildings in air photos |
title |
Método monoscópico para a determinação automática da altura de edifícios em fotografias aéreas |
spellingShingle |
Método monoscópico para a determinação automática da altura de edifícios em fotografias aéreas Demarqui, Edgar Nogueira [UNESP] Height of buildings Relief displacement Shadows detection |
title_short |
Método monoscópico para a determinação automática da altura de edifícios em fotografias aéreas |
title_full |
Método monoscópico para a determinação automática da altura de edifícios em fotografias aéreas |
title_fullStr |
Método monoscópico para a determinação automática da altura de edifícios em fotografias aéreas |
title_full_unstemmed |
Método monoscópico para a determinação automática da altura de edifícios em fotografias aéreas |
title_sort |
Método monoscópico para a determinação automática da altura de edifícios em fotografias aéreas |
author |
Demarqui, Edgar Nogueira [UNESP] |
author_facet |
Demarqui, Edgar Nogueira [UNESP] Hasegawa, Júlio Kiyoshi [UNESP] Galo, Mauricio [UNESP] |
author_role |
author |
author2 |
Hasegawa, Júlio Kiyoshi [UNESP] Galo, Mauricio [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Demarqui, Edgar Nogueira [UNESP] Hasegawa, Júlio Kiyoshi [UNESP] Galo, Mauricio [UNESP] |
dc.subject.por.fl_str_mv |
Height of buildings Relief displacement Shadows detection |
topic |
Height of buildings Relief displacement Shadows detection |
description |
This paper proposes a monoscopic method for automatic determination of building's heights in digital photographs areas, based on radial displacement of points in the plan image and geometry at the time the photo is obtained. Determination of the buildings' heights can be used to model the surface in urban areas, urban planning and management, among others. The proposed methodology employs a set of steps to detect arranged radially from the system of photogrammetric coordinates, which characterizes the lateral edges of buildings present in the photo. In a first stage is performed the reduction of the searching area through detection of shadows projected by buildings, generating sub-images of the areas around each of the detected shadow. Then, for each sub-image, the edges are automatically extracted, and tests of consistency are applied for it in order to be characterized as segments of straight arranged radially. Next, with the lateral edges selected and the knowledge of the flight height, the buildings' heights can be calculated. The experimental results obtained with real images showed that the proposed approach is suitable to perform the automatic identification of the buildings height in digital images. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-04-01 2022-04-28T20:43:09Z 2022-04-28T20:43:09Z |
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 |
Boletim de Ciencias Geodesicas, v. 14, n. 2, p. 272-293, 2008. 1413-4853 http://hdl.handle.net/11449/225249 2-s2.0-49549096201 |
identifier_str_mv |
Boletim de Ciencias Geodesicas, v. 14, n. 2, p. 272-293, 2008. 1413-4853 2-s2.0-49549096201 |
url |
http://hdl.handle.net/11449/225249 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Boletim de Ciencias Geodesicas |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
272-293 |
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_ |
1808129475960897536 |