GEOBIA, TREE DECISION AND HIERARCHICAL CLASSIFICATION FOR MAPPING GULLY EROSION
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | |
Tipo de documento: | Artigo |
Idioma: | por eng |
Título da fonte: | Ra'e Ga (Online) |
Texto Completo: | https://revistas.ufpr.br/raega/article/view/74842 |
Resumo: | The gullies provoke environmental, social and financial damages. The application of corrective and preventive measures needs gullies mapping and monitoring. In this scope, this study proposes a methodology for gullies delimitation using object-oriented image analysis. For such, there were used high spatial resolution imagery and ALS data applied for two study areas, one in Uberlandia-Minas Gerais (Brazil) and another one in Queensland (Australia). The objects were generated by multiresolution segmentation. The most important attributes on the delimitation of the gullies were selected using decision tree induction algorithms, being them: spectral, altimetric and texture. Classifications by decision trees and hierarchical were carried out. The use of decision tree allowed the selection of attributes and the establishment of preliminary decision rules. However, since this procedure did not use fuzzy logic, mixtures between classes could not be evidenced in the rule base. Moreover, the classification was performed by a factor of scale only, which did not allow the identification of all the constituent features of the gully. In hierarchical classification, the procedure is performed on different scales, allowing the use of fuzzy logic to describe different degrees of membership in each class, which makes it a very attractive method for cases such as this study, where there is mixing of classes. The classification obtained with hierarchical classification it was more reliable with the field truth, by allowing the use of different scales, uncertainty insert and integration of knowledge, compared to the automatic classification by decision tree. |
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Ra'e Ga (Online) |
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GEOBIA, TREE DECISION AND HIERARCHICAL CLASSIFICATION FOR MAPPING GULLY EROSIONGeomorfologiaALS Data; High Resolution Imagery; Multirresolution SegmentationThe gullies provoke environmental, social and financial damages. The application of corrective and preventive measures needs gullies mapping and monitoring. In this scope, this study proposes a methodology for gullies delimitation using object-oriented image analysis. For such, there were used high spatial resolution imagery and ALS data applied for two study areas, one in Uberlandia-Minas Gerais (Brazil) and another one in Queensland (Australia). The objects were generated by multiresolution segmentation. The most important attributes on the delimitation of the gullies were selected using decision tree induction algorithms, being them: spectral, altimetric and texture. Classifications by decision trees and hierarchical were carried out. The use of decision tree allowed the selection of attributes and the establishment of preliminary decision rules. However, since this procedure did not use fuzzy logic, mixtures between classes could not be evidenced in the rule base. Moreover, the classification was performed by a factor of scale only, which did not allow the identification of all the constituent features of the gully. In hierarchical classification, the procedure is performed on different scales, allowing the use of fuzzy logic to describe different degrees of membership in each class, which makes it a very attractive method for cases such as this study, where there is mixing of classes. The classification obtained with hierarchical classification it was more reliable with the field truth, by allowing the use of different scales, uncertainty insert and integration of knowledge, compared to the automatic classification by decision tree.UFPRTedesco, AndreaAntunes, Alzir Felippe Buffara2020-12-26info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttps://revistas.ufpr.br/raega/article/view/7484210.5380/raega.v48i0.74842RA'E GA Journal - The Geographic Space in Analysis; v. 48 (2020); 187-215RAEGA - O Espaço Geográfico em Análise; v. 48 (2020); 187-2152177-27381516-413610.5380/raega.v48i0reponame:Ra'e Ga (Online)instname:Universidade Federal do Paraná (UFPR)instacron:UFPRporenghttps://revistas.ufpr.br/raega/article/view/74842/42664https://revistas.ufpr.br/raega/article/view/74842/42653Direitos autorais 2020 Raega - O Espaço Geográfico em Análiseinfo:eu-repo/semantics/openAccess2020-12-31T11:05:17Zoai:revistas.ufpr.br:article/74842Revistahttps://revistas.ufpr.br/raegaPUBhttps://revistas.ufpr.br/raega/oai||raega@ufpr.br2177-27382177-2738opendoar:2020-12-31T11:05:17Ra'e Ga (Online) - Universidade Federal do Paraná (UFPR)false |
dc.title.none.fl_str_mv |
GEOBIA, TREE DECISION AND HIERARCHICAL CLASSIFICATION FOR MAPPING GULLY EROSION |
title |
GEOBIA, TREE DECISION AND HIERARCHICAL CLASSIFICATION FOR MAPPING GULLY EROSION |
spellingShingle |
GEOBIA, TREE DECISION AND HIERARCHICAL CLASSIFICATION FOR MAPPING GULLY EROSION Tedesco, Andrea Geomorfologia ALS Data; High Resolution Imagery; Multirresolution Segmentation |
title_short |
GEOBIA, TREE DECISION AND HIERARCHICAL CLASSIFICATION FOR MAPPING GULLY EROSION |
title_full |
GEOBIA, TREE DECISION AND HIERARCHICAL CLASSIFICATION FOR MAPPING GULLY EROSION |
title_fullStr |
GEOBIA, TREE DECISION AND HIERARCHICAL CLASSIFICATION FOR MAPPING GULLY EROSION |
title_full_unstemmed |
GEOBIA, TREE DECISION AND HIERARCHICAL CLASSIFICATION FOR MAPPING GULLY EROSION |
title_sort |
GEOBIA, TREE DECISION AND HIERARCHICAL CLASSIFICATION FOR MAPPING GULLY EROSION |
author |
Tedesco, Andrea |
author_facet |
Tedesco, Andrea Antunes, Alzir Felippe Buffara |
author_role |
author |
author2 |
Antunes, Alzir Felippe Buffara |
author2_role |
author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Tedesco, Andrea Antunes, Alzir Felippe Buffara |
dc.subject.por.fl_str_mv |
Geomorfologia ALS Data; High Resolution Imagery; Multirresolution Segmentation |
topic |
Geomorfologia ALS Data; High Resolution Imagery; Multirresolution Segmentation |
description |
The gullies provoke environmental, social and financial damages. The application of corrective and preventive measures needs gullies mapping and monitoring. In this scope, this study proposes a methodology for gullies delimitation using object-oriented image analysis. For such, there were used high spatial resolution imagery and ALS data applied for two study areas, one in Uberlandia-Minas Gerais (Brazil) and another one in Queensland (Australia). The objects were generated by multiresolution segmentation. The most important attributes on the delimitation of the gullies were selected using decision tree induction algorithms, being them: spectral, altimetric and texture. Classifications by decision trees and hierarchical were carried out. The use of decision tree allowed the selection of attributes and the establishment of preliminary decision rules. However, since this procedure did not use fuzzy logic, mixtures between classes could not be evidenced in the rule base. Moreover, the classification was performed by a factor of scale only, which did not allow the identification of all the constituent features of the gully. In hierarchical classification, the procedure is performed on different scales, allowing the use of fuzzy logic to describe different degrees of membership in each class, which makes it a very attractive method for cases such as this study, where there is mixing of classes. The classification obtained with hierarchical classification it was more reliable with the field truth, by allowing the use of different scales, uncertainty insert and integration of knowledge, compared to the automatic classification by decision tree. |
publishDate |
2020 |
dc.date.none.fl_str_mv |
2020-12-26 |
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/raega/article/view/74842 10.5380/raega.v48i0.74842 |
url |
https://revistas.ufpr.br/raega/article/view/74842 |
identifier_str_mv |
10.5380/raega.v48i0.74842 |
dc.language.iso.fl_str_mv |
por eng |
language |
por eng |
dc.relation.none.fl_str_mv |
https://revistas.ufpr.br/raega/article/view/74842/42664 https://revistas.ufpr.br/raega/article/view/74842/42653 |
dc.rights.driver.fl_str_mv |
Direitos autorais 2020 Raega - O Espaço Geográfico em Análise info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Direitos autorais 2020 Raega - O Espaço Geográfico em Análise |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
UFPR |
publisher.none.fl_str_mv |
UFPR |
dc.source.none.fl_str_mv |
RA'E GA Journal - The Geographic Space in Analysis; v. 48 (2020); 187-215 RAEGA - O Espaço Geográfico em Análise; v. 48 (2020); 187-215 2177-2738 1516-4136 10.5380/raega.v48i0 reponame:Ra'e Ga (Online) instname:Universidade Federal do Paraná (UFPR) instacron:UFPR |
instname_str |
Universidade Federal do Paraná (UFPR) |
instacron_str |
UFPR |
institution |
UFPR |
reponame_str |
Ra'e Ga (Online) |
collection |
Ra'e Ga (Online) |
repository.name.fl_str_mv |
Ra'e Ga (Online) - Universidade Federal do Paraná (UFPR) |
repository.mail.fl_str_mv |
||raega@ufpr.br |
_version_ |
1799712043390992384 |