Methodology for the extraction of homologous points from a DEM/DSM to evaluate the relative positional accuracy

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorSantos, Afonso de Paula dos-
Autor(es): dc.creatorMedeiros, Nilcilene das Graças-
Autor(es): dc.creatorDal Poz, Aluir Porfírio-
Autor(es): dc.creatorSantos, Gérson Rodrigues dos-
Autor(es): dc.creatorRodrigues, Dalto Domingos-
Autor(es): dc.creatorEmiliano, Paulo César-
Data de aceite: dc.date.accessioned2026-02-09T11:14:41Z-
Data de disponibilização: dc.date.available2026-02-09T11:14:41Z-
Data de envio: dc.date.issued2021-12-02-
Data de envio: dc.date.issued2021-12-02-
Data de envio: dc.date.issued2019-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/48619-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1136719-
Descrição: dc.descriptionThis work presents a new methodology for extracting 3D homologous points from a DEM/DSM for relative evaluation of positional accuracies, from terrain features such as ridgelines and hydrography. Firstly, it extracts 3D intersection points between the linear features and then it performs a selection of these homologous points. A discussion regarding the spatial resolution effect of the DEM/DSM on the proposed methodology is carried out. As case study, the planimetric and altimetric positional accuracies evaluation of SRTM (X-band) and Aster GDEM (version 2) DSMs was conducted using, as reference, a DSM obtained via photogrammetry. The SRTM and Aster GDEM (version 2) DSMs showed similar classifications, that is, Class A for the altimetry and Class B for the planimetry at the 1:100,000 scale, according to the Brazilian technical standard of positional accuracy.-
Formato: dc.formatapplication/pdf-
Idioma: dc.languageen-
Publicador: dc.publisherUniversidade Federal do Paraná-
Direitos: dc.rightsAttribution 4.0 International-
Direitos: dc.rightsAttribution 4.0 International-
Direitos: dc.rightsacesso aberto-
Direitos: dc.rightshttp://creativecommons.org/licenses/by/4.0/-
Direitos: dc.rightshttp://creativecommons.org/licenses/by/4.0/-
???dc.source???: dc.sourceBoletim de Ciências Geodésicas-
Palavras-chave: dc.subjectPositional accuracy-
Palavras-chave: dc.subjectHomologous point extraction-
Palavras-chave: dc.subjectSpatial data quality-
Palavras-chave: dc.subjectPrecisão posicional-
Palavras-chave: dc.subjectExtração de ponto homólogo-
Palavras-chave: dc.subjectQualidade de dados espaciais-
Título: dc.titleMethodology for the extraction of homologous points from a DEM/DSM to evaluate the relative positional accuracy-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

Não existem arquivos associados a este item.