PDI techniques applied to the automatic identification and extraction of anthropogenic activities
Autor(a) principal: | |
---|---|
Data de Publicação: | 2022 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.26848/rbgf.v15.4.p2121-2137 http://hdl.handle.net/11449/241376 |
Resumo: | The use of Digital Image Processing (PDI) consists in adjusting the visual characteristics of the image in order to provide contributions to its interpretation and generate products that can later be subjected to further processing. Among the DIP techniques, the segmentation of objects in the image is highlighted by the possibility of distinguishing the region of interest from the background of the image. Therefore, this work aimed to perform the segmentation of anthropic activities in an image of the city of Paracatu-MG that included both the urban network of the city and the area of open-pit mineral extraction. To this end, we used a satellite image that contemplated the reality of the municipality. Initially, the Otsu method was used to perform the segmentation of the tree and underbrush vegetation and the image histogram was calculated in gray levels for each input (red channel (R); green channel (G) and; blue channel (B)). From this, weights and averages for the front and background classes of the image were calculated until an optimal threshold was found. In order to verify the possibility of segmenting the open-pit mineral extraction area and the urban mesh of the Paracatu municipality, the Region Growth (RC) method was chosen. Finally, the morphological operation of closure was performed in the segmented regions, so that the gaps were added to the original regions of the image and compared the results of the segmentation of the Otsu method with the segmentation by threshold. It was verified that it was possible to achieve the proposed objective through the PDI techniques and that the segmentation of the images can be used as a previous form of processing that can assist in computational techniques. |
id |
UNSP_93f572183a1fc080fcbadab6e33b362a |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/241376 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
PDI techniques applied to the automatic identification and extraction of anthropogenic activitiesTécnicas de PDI aplicadas para a identificação e extração automática de atividades antrópicasgrowth of regionsimage segmentationOtsu methodthresholdThe use of Digital Image Processing (PDI) consists in adjusting the visual characteristics of the image in order to provide contributions to its interpretation and generate products that can later be subjected to further processing. Among the DIP techniques, the segmentation of objects in the image is highlighted by the possibility of distinguishing the region of interest from the background of the image. Therefore, this work aimed to perform the segmentation of anthropic activities in an image of the city of Paracatu-MG that included both the urban network of the city and the area of open-pit mineral extraction. To this end, we used a satellite image that contemplated the reality of the municipality. Initially, the Otsu method was used to perform the segmentation of the tree and underbrush vegetation and the image histogram was calculated in gray levels for each input (red channel (R); green channel (G) and; blue channel (B)). From this, weights and averages for the front and background classes of the image were calculated until an optimal threshold was found. In order to verify the possibility of segmenting the open-pit mineral extraction area and the urban mesh of the Paracatu municipality, the Region Growth (RC) method was chosen. Finally, the morphological operation of closure was performed in the segmented regions, so that the gaps were added to the original regions of the image and compared the results of the segmentation of the Otsu method with the segmentation by threshold. It was verified that it was possible to achieve the proposed objective through the PDI techniques and that the segmentation of the images can be used as a previous form of processing that can assist in computational techniques.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Instituto de Ciência e Tecnologia de Sorocaba – ICTS Universidade Estadual Paulista – UNESP, SPMestrando em Engenharia Civil Faculdade de Engenharia de Ilha Solteira – FEIS Universidade Estadual Paulista – UNESP, SPInstituto de Ciência e Tecnologia de Sorocaba – ICTS Universidade Estadual Paulista – UNESP, SPMestrando em Engenharia Civil Faculdade de Engenharia de Ilha Solteira – FEIS Universidade Estadual Paulista – UNESP, SPUniversidade Estadual Paulista (UNESP)Dos Santos, Arthur Pereira [UNESP]Simionatto, Henzo Henrique [UNESP]Xisto, Luana Aparecida Duarte [UNESP]2023-03-01T20:59:17Z2023-03-01T20:59:17Z2022-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article2121-2137http://dx.doi.org/10.26848/rbgf.v15.4.p2121-2137Revista Brasileira de Geografia Fisica, v. 15, n. 4, p. 2121-2137, 2022.1984-2295http://hdl.handle.net/11449/24137610.26848/rbgf.v15.4.p2121-21372-s2.0-85134568543Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporRevista Brasileira de Geografia Fisicainfo:eu-repo/semantics/openAccess2023-03-01T20:59:17Zoai:repositorio.unesp.br:11449/241376Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-03-01T20:59:17Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
PDI techniques applied to the automatic identification and extraction of anthropogenic activities Técnicas de PDI aplicadas para a identificação e extração automática de atividades antrópicas |
title |
PDI techniques applied to the automatic identification and extraction of anthropogenic activities |
spellingShingle |
PDI techniques applied to the automatic identification and extraction of anthropogenic activities Dos Santos, Arthur Pereira [UNESP] growth of regions image segmentation Otsu method threshold |
title_short |
PDI techniques applied to the automatic identification and extraction of anthropogenic activities |
title_full |
PDI techniques applied to the automatic identification and extraction of anthropogenic activities |
title_fullStr |
PDI techniques applied to the automatic identification and extraction of anthropogenic activities |
title_full_unstemmed |
PDI techniques applied to the automatic identification and extraction of anthropogenic activities |
title_sort |
PDI techniques applied to the automatic identification and extraction of anthropogenic activities |
author |
Dos Santos, Arthur Pereira [UNESP] |
author_facet |
Dos Santos, Arthur Pereira [UNESP] Simionatto, Henzo Henrique [UNESP] Xisto, Luana Aparecida Duarte [UNESP] |
author_role |
author |
author2 |
Simionatto, Henzo Henrique [UNESP] Xisto, Luana Aparecida Duarte [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) |
dc.contributor.author.fl_str_mv |
Dos Santos, Arthur Pereira [UNESP] Simionatto, Henzo Henrique [UNESP] Xisto, Luana Aparecida Duarte [UNESP] |
dc.subject.por.fl_str_mv |
growth of regions image segmentation Otsu method threshold |
topic |
growth of regions image segmentation Otsu method threshold |
description |
The use of Digital Image Processing (PDI) consists in adjusting the visual characteristics of the image in order to provide contributions to its interpretation and generate products that can later be subjected to further processing. Among the DIP techniques, the segmentation of objects in the image is highlighted by the possibility of distinguishing the region of interest from the background of the image. Therefore, this work aimed to perform the segmentation of anthropic activities in an image of the city of Paracatu-MG that included both the urban network of the city and the area of open-pit mineral extraction. To this end, we used a satellite image that contemplated the reality of the municipality. Initially, the Otsu method was used to perform the segmentation of the tree and underbrush vegetation and the image histogram was calculated in gray levels for each input (red channel (R); green channel (G) and; blue channel (B)). From this, weights and averages for the front and background classes of the image were calculated until an optimal threshold was found. In order to verify the possibility of segmenting the open-pit mineral extraction area and the urban mesh of the Paracatu municipality, the Region Growth (RC) method was chosen. Finally, the morphological operation of closure was performed in the segmented regions, so that the gaps were added to the original regions of the image and compared the results of the segmentation of the Otsu method with the segmentation by threshold. It was verified that it was possible to achieve the proposed objective through the PDI techniques and that the segmentation of the images can be used as a previous form of processing that can assist in computational techniques. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-01-01 2023-03-01T20:59:17Z 2023-03-01T20:59:17Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.26848/rbgf.v15.4.p2121-2137 Revista Brasileira de Geografia Fisica, v. 15, n. 4, p. 2121-2137, 2022. 1984-2295 http://hdl.handle.net/11449/241376 10.26848/rbgf.v15.4.p2121-2137 2-s2.0-85134568543 |
url |
http://dx.doi.org/10.26848/rbgf.v15.4.p2121-2137 http://hdl.handle.net/11449/241376 |
identifier_str_mv |
Revista Brasileira de Geografia Fisica, v. 15, n. 4, p. 2121-2137, 2022. 1984-2295 10.26848/rbgf.v15.4.p2121-2137 2-s2.0-85134568543 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
Revista Brasileira de Geografia Fisica |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
2121-2137 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1799965362515607552 |