METHODOLOGY FOR THE EXTRACTION OF HOMOLOGOUS POINTS FROM A DEM/DSM TO EVALUATE THE RELATIVE POSITIONAL ACCURACY

Detalhes bibliográficos
Autor(a) principal: Santos, Afonso de Paula dos
Data de Publicação: 2020
Outros Autores: Medeiros, Nilcilene das Graças, Poz, Aluir Porfírio Dal, Santos, Gérson Rodrigues dos, Rodrigues, Dalto Domingos, Emiliano, Paulo César
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Boletim de Ciências Geodésicas
Texto Completo: https://revistas.ufpr.br/bcg/article/view/76108
Resumo: This 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.
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spelling METHODOLOGY FOR THE EXTRACTION OF HOMOLOGOUS POINTS FROM A DEM/DSM TO EVALUATE THE RELATIVE POSITIONAL ACCURACYGeociências, Ciências da Terrapositional accuracy; DSM; DEM; homologous point extraction; spatial data quality.This 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.Boletim de Ciências GeodésicasBulletin of Geodetic SciencesSantos, Afonso de Paula dosMedeiros, Nilcilene das GraçasPoz, Aluir Porfírio DalSantos, Gérson Rodrigues dosRodrigues, Dalto DomingosEmiliano, Paulo César2020-08-27info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttps://revistas.ufpr.br/bcg/article/view/76108Boletim de Ciências Geodésicas; Vol 26, No 2 (2020)Bulletin of Geodetic Sciences; Vol 26, No 2 (2020)1982-21701413-4853reponame:Boletim de Ciências Geodésicasinstname:Universidade Federal do Paraná (UFPR)instacron:UFPRCopyright (c) 2020 Afonso de Paula dos Santos, Nilcilene das Graças Medeiros, Aluir Porfírio Dal Poz, Gérson Rodrigues dos Santos, Dalto Domingos Rodrigues, Paulo César Emilianohttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccesseng2020-08-27T22:40:40Zoai:revistas.ufpr.br:article/76108Revistahttps://revistas.ufpr.br/bcgPUBhttps://revistas.ufpr.br/bcg/oaiqdalmolin@ufpr.br|| danielsantos@ufpr.br||qdalmolin@ufpr.br|| danielsantos@ufpr.br1982-21701413-4853opendoar:2020-08-27T22:40:40Boletim de Ciências Geodésicas - Universidade Federal do Paraná (UFPR)false
dc.title.none.fl_str_mv METHODOLOGY FOR THE EXTRACTION OF HOMOLOGOUS POINTS FROM A DEM/DSM TO EVALUATE THE RELATIVE POSITIONAL ACCURACY
title METHODOLOGY FOR THE EXTRACTION OF HOMOLOGOUS POINTS FROM A DEM/DSM TO EVALUATE THE RELATIVE POSITIONAL ACCURACY
spellingShingle METHODOLOGY FOR THE EXTRACTION OF HOMOLOGOUS POINTS FROM A DEM/DSM TO EVALUATE THE RELATIVE POSITIONAL ACCURACY
Santos, Afonso de Paula dos
Geociências, Ciências da Terra
positional accuracy; DSM; DEM; homologous point extraction; spatial data quality.
title_short METHODOLOGY FOR THE EXTRACTION OF HOMOLOGOUS POINTS FROM A DEM/DSM TO EVALUATE THE RELATIVE POSITIONAL ACCURACY
title_full METHODOLOGY FOR THE EXTRACTION OF HOMOLOGOUS POINTS FROM A DEM/DSM TO EVALUATE THE RELATIVE POSITIONAL ACCURACY
title_fullStr METHODOLOGY FOR THE EXTRACTION OF HOMOLOGOUS POINTS FROM A DEM/DSM TO EVALUATE THE RELATIVE POSITIONAL ACCURACY
title_full_unstemmed METHODOLOGY FOR THE EXTRACTION OF HOMOLOGOUS POINTS FROM A DEM/DSM TO EVALUATE THE RELATIVE POSITIONAL ACCURACY
title_sort METHODOLOGY FOR THE EXTRACTION OF HOMOLOGOUS POINTS FROM A DEM/DSM TO EVALUATE THE RELATIVE POSITIONAL ACCURACY
author Santos, Afonso de Paula dos
author_facet Santos, Afonso de Paula dos
Medeiros, Nilcilene das Graças
Poz, Aluir Porfírio Dal
Santos, Gérson Rodrigues dos
Rodrigues, Dalto Domingos
Emiliano, Paulo César
author_role author
author2 Medeiros, Nilcilene das Graças
Poz, Aluir Porfírio Dal
Santos, Gérson Rodrigues dos
Rodrigues, Dalto Domingos
Emiliano, Paulo César
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv
dc.contributor.author.fl_str_mv Santos, Afonso de Paula dos
Medeiros, Nilcilene das Graças
Poz, Aluir Porfírio Dal
Santos, Gérson Rodrigues dos
Rodrigues, Dalto Domingos
Emiliano, Paulo César
dc.subject.por.fl_str_mv Geociências, Ciências da Terra
positional accuracy; DSM; DEM; homologous point extraction; spatial data quality.
topic Geociências, Ciências da Terra
positional accuracy; DSM; DEM; homologous point extraction; spatial data quality.
description This 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.
publishDate 2020
dc.date.none.fl_str_mv 2020-08-27
dc.type.none.fl_str_mv

dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://revistas.ufpr.br/bcg/article/view/76108
url https://revistas.ufpr.br/bcg/article/view/76108
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv http://creativecommons.org/licenses/by-nc/4.0
info:eu-repo/semantics/openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc/4.0
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Boletim de Ciências Geodésicas
Bulletin of Geodetic Sciences
publisher.none.fl_str_mv Boletim de Ciências Geodésicas
Bulletin of Geodetic Sciences
dc.source.none.fl_str_mv Boletim de Ciências Geodésicas; Vol 26, No 2 (2020)
Bulletin of Geodetic Sciences; Vol 26, No 2 (2020)
1982-2170
1413-4853
reponame:Boletim de Ciências Geodésicas
instname:Universidade Federal do Paraná (UFPR)
instacron:UFPR
instname_str Universidade Federal do Paraná (UFPR)
instacron_str UFPR
institution UFPR
reponame_str Boletim de Ciências Geodésicas
collection Boletim de Ciências Geodésicas
repository.name.fl_str_mv Boletim de Ciências Geodésicas - Universidade Federal do Paraná (UFPR)
repository.mail.fl_str_mv qdalmolin@ufpr.br|| danielsantos@ufpr.br||qdalmolin@ufpr.br|| danielsantos@ufpr.br
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