Rectilinear building roof contour extraction based on snakes and dynamic programming

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.creatorFazana, Antonio Juliano-
Autor(es): dc.creatorPozb, Aluir Porfírio Dal-
Data de aceite: dc.date.accessioned2025-08-21T23:02:51Z-
Data de disponibilização: dc.date.available2025-08-21T23:02:51Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2013-01-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.jag.2013.03.003-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/231309-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/231309-
Descrição: dc.descriptionThis paper presents a method for extracting building roof contours from digital images collected over urban landscapes. The proposed method utilizes an energy function based on snakes that represents building roof contours in digital images and is optimized with a dynamic programming (DP) algorithm. Because most building roof contours are characterized by rectilinear sides that intercept at right angles, appropriate geometric constraints are enforced in the previously reported snake-based energy function. The main advantage of using the DP algorithm for optimizing the proposed snake-based energy function is its better radius of convergence compared to that typically obtained in the original solution based on variational approaches. Experimental evaluation, which included visual inspections and numerical analyses, was performed using real data, and the obtained results demonstrated that the proposed method has significant potential for successfully extracting building roof contours from digital images. © 2013 Elsevier B.V.-
Descrição: dc.descriptionUniversity of São Paulo State-
Descrição: dc.descriptionDepartment of Cartography University of São Paulo State-
Formato: dc.format1-10-
Idioma: dc.languageen-
Relação: dc.relationInternational Journal of Applied Earth Observation and Geoinformation-
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Palavras-chave: dc.subjectBuilding extraction-
Palavras-chave: dc.subjectDynamic programming-
Palavras-chave: dc.subjectImage analysis-
Palavras-chave: dc.subjectSnakes-
Título: dc.titleRectilinear building roof contour extraction based on snakes and dynamic programming-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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