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Campo DCValorIdioma
dc.creatorSantos, Afonso de Paula dos-
dc.creatorMedeiros, Nilcilene das Graças-
dc.creatorDal Poz, Aluir Porfírio-
dc.creatorSantos, Gérson Rodrigues dos-
dc.creatorRodrigues, Dalto Domingos-
dc.creatorEmiliano, Paulo César-
dc.date.accessioned2021-12-03T19:14:53Z-
dc.date.available2021-12-03T19:14:53Z-
dc.date.issued2020-
dc.identifier.citationSANTOS, A. de P. dos et al. Methodology for the extraction of homologous points from a DEM/DSM to evaluate the relative positional accuracy. Boletim de Ciências Geodésicas, Curitiba, v. 26, n. 2, e2020007, 2020. DOI: 10.1590/s1982-21702020000200007 .pt_BR
dc.identifier.urihttp://repositorio.ufla.br/jspui/handle/1/48619-
dc.description.abstractThis 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.pt_BR
dc.languageen_USpt_BR
dc.publisherUniversidade Federal do Paranápt_BR
dc.rightsAttribution 4.0 International*
dc.rightsacesso abertopt_BR
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.sourceBoletim de Ciências Geodésicaspt_BR
dc.subjectPositional accuracypt_BR
dc.subjectHomologous point extractionpt_BR
dc.subjectSpatial data qualitypt_BR
dc.subjectPrecisão posicionalpt_BR
dc.subjectExtração de ponto homólogopt_BR
dc.subjectQualidade de dados espaciaispt_BR
dc.titleMethodology for the extraction of homologous points from a DEM/DSM to evaluate the relative positional accuracypt_BR
dc.typeArtigopt_BR
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