Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1114915
Research center of Embrapa/Collection: Embrapa Informática Agropecuária - Artigo em periódico indexado (ALICE)
Date Issued: 2019
Type of Material: Artigo em periódico indexado (ALICE)
Authors: OLDONI, L. V.
CATTANI, C. E. V.
MERCANTE, E.
JOHANN, J. A.
ANTUNES, J. F. G.
ALMEIDA, L.
Additional Information: LUCAS VOLOCHEN OLDONI, INPE; CARLOS EDUARDO VIZZOTTO CATTANI, Unioeste; ERIVELTO MERCANTE, Unioeste; JERRY ADRIANI JOHANN, Unioeste; JOAO FRANCISCO GONCALVES ANTUNES, CNPTIA; LUIZ ALMEIDA, INPE.
Title: Annual cropland mapping using data mining and OLI Landsat-8.
Publisher: Revista Brasileira de Engenharia Agrícola e Ambiental, Campina Grande, v. 23, n. 12, p. 952-958, 2019.
Language: en
Keywords: Árvore de decisão
Métricas temporais de NDVI
Mineração de dados
Séries temporais
Decision tree
NDVI temporal metrics
Random forest
Data mining
Description: ABSTRACT: In the state of Paraná, Brazil, there are no major changes in areas cultivated with annual crops, mainly due to environmental laws that do not allow expansions to new areas. There is a great contribution of the annual crops to the domestic demand of food and economic demand in the exports. Thus, the area and distribution of annual crops are information of great importance. New methodologies, such as data mining, are being tested with the objective of analyzing and improving their potential use for classification of land use and land cover. This study used the classifiers decision tree and random forest with Normalized Difference Vegetation Index (NDVI) temporal metrics on images from Operational Land Imager (OLI)/Landsat-8. The results were compared with traditional methods spectral images and Maximum Likelihood Classifier (MLC). At first, seven classes were mapped (water bodies, sugarcane, urban area, annual crops, forest, pasture and reforestation areas); then, only two classes were considered (annual crops and other targets). When classifying the seven targets, both methods had corresponding results, showing global accuracy near 84%. NDVI temporal metrics showed producer?s and user?s accuracy for the annual crop class of 86 and 100%, respectively. However, if considering only two classes, the NDVI temporal metrics reached global accuracy of near 98% and producer?s and user?s accuracy above 94%.
NAL Thesaurus: Normalized difference vegetation index
Time series analysis
Data Created: 2019-11-22
Appears in Collections:Artigo em periódico indexado (CNPTIA)

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