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.date2021-12-03T19:14:53Z
dc.date2021-12-03T19:14:53Z
dc.date2020
dc.date.accessioned2023-09-28T19:58:51Z
dc.date.available2023-09-28T19:58:51Z
dc.identifierSANTOS, 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 .
dc.identifierhttp://repositorio.ufla.br/jspui/handle/1/48619
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/9041586
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.
dc.formatapplication/pdf
dc.languageen_US
dc.publisherUniversidade Federal do Paraná
dc.rightsAttribution 4.0 International
dc.rightsacesso aberto
dc.rightshttp://creativecommons.org/licenses/by/4.0/
dc.sourceBoletim de Ciências Geodésicas
dc.subjectPositional accuracy
dc.subjectHomologous point extraction
dc.subjectSpatial data quality
dc.subjectPrecisão posicional
dc.subjectExtração de ponto homólogo
dc.subjectQualidade de dados espaciais
dc.titleMethodology for the extraction of homologous points from a DEM/DSM to evaluate the relative positional accuracy
dc.typeArtigo


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