Uso de dados fotogramétricos no refinamento geométrico de contornos de telhados de edifícios extraídos de dados laser

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorSchulich School of Engineering-
Autor(es): dc.creatorDal Poz, Aluir P.-
Autor(es): dc.creatorHabib, Ayman F.-
Autor(es): dc.creatorMarcato, Vanessa Jordão-
Autor(es): dc.creatorCorreia, Larissa de Souza-
Data de aceite: dc.date.accessioned2025-08-21T19:35:44Z-
Data de disponibilização: dc.date.available2025-08-21T19:35:44Z-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2022-04-28-
Data de envio: dc.date.issued2009-10-21-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/225652-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/225652-
Descrição: dc.descriptionIn this paper, a methodology is proposed for the geometric refinement of laser scanning building roof contours using high-resolution aerial images and Markov Random Field (MRF) models. The proposed methodology assumes that the 3D description of each building roof reconstructed from the laser scanning data (i.e., a polyhedron) is topologically correct and that it is only necessary to improve its accuracy. Since roof ridges are accurately extracted from laser scanning data, our main objective is to use high-resolution aerial images to improve the accuracy of roof outlines. In order to meet this goal, the available roof contours are first projected onto the image-space. Then, the projected polygons and the straight lines extracted from the image are used to establish an MRF description, which is based on relations (relative length, proximity, and orientation) between the two sets of straight lines. The energy function associated with the MRF is minimized using a modified version of the brute force algorithm, resulting in the grouping of straight lines for each roof object. Finally, each grouping of straight lines is topologically reconstructed based on the topology of the corresponding laser scanning polygon projected onto the image-space. The preliminary results showed that the proposed methodology is promising, since most sides of the refined polygons are geometrically better than corresponding projected laser scanning straight lines.-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionDepartamento de Cartografia UNESP FCT, Rua Roberto Simonsen, 305, 19060-900, Presidente Prudente, SP-
Descrição: dc.descriptionThe University of Calgary Department of Geomatics Engineering Schulich School of Engineering, 2500 University Drive NW, T2N 1N4, Calgary-
Descrição: dc.descriptionUNESP FCT Bolsista de IC/FAPESP-
Descrição: dc.descriptionDepartamento de Cartografia UNESP FCT, Rua Roberto Simonsen, 305, 19060-900, Presidente Prudente, SP-
Descrição: dc.descriptionUNESP FCT Bolsista de IC/FAPESP-
Idioma: dc.languagept_BR-
Relação: dc.relationBoletim de Ciencias Geodesicas-
Relação: dc.relation240769-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectAerial image-
Palavras-chave: dc.subjectBuilding extraction-
Palavras-chave: dc.subjectFeature extraction-
Palavras-chave: dc.subjectLaser data-
Palavras-chave: dc.subjectMRF-
Título: dc.titleUso de dados fotogramétricos no refinamento geométrico de contornos de telhados de edifícios extraídos de dados laser-
Título: dc.titleGeometric refinement of laser-derived building roof contours using photogrammetric data-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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