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- Title
Maize Crop Detection through Geo-Object-Oriented Analysis Using Orbital Multi-Sensors on the Google Earth Engine Platform.
- Authors
Maciel Junior, Ismael Cavalcante; Dallacort, Rivanildo; Boechat, Cácio Luiz; Teodoro, Paulo Eduardo; Teodoro, Larissa Pereira Ribeiro; Rossi, Fernando Saragosa; Oliveira-Júnior, José Francisco de; Della-Silva, João Lucas; Baio, Fabio Henrique Rojo; Lima, Mendelson; Silva Junior, Carlos Antonio da
- Abstract
Mato Grosso state is the biggest maize producer in Brazil, with the predominance of cultivation concentrated in the second harvest. Due to the need to obtain more accurate and efficient data, agricultural intelligence is adapting and embracing new technologies such as the use of satellites for remote sensing and geographic information systems. In this respect, this study aimed to map the second harvest maize cultivation areas at Canarana-MT in the crop year 2019/2020 by using geographic object-based image analysis (GEOBIA) with different spatial, spectral, and temporal resolutions. MSI/Sentinel-2, OLI/Landsat-8, MODIS-Terra and MODIS-Aqua, and PlanetScope imagery were used in this assessment. The maize crops mapping was based on cartographic basis from IBGE (Brazilian Institute of Geography and Statistics) and the Google Earth Engine (GEE), and the following steps of image filtering (gray-level co-occurrence matrix—GLCM), vegetation indices calculation, segmentation by simple non-iterative clustering (SNIC), principal component (PC) analysis, and classification by random forest (RF) algorithm, followed finally by confusion matrix analysis, kappa, overall accuracy (OA), and validation statistics. From these methods, satisfactory results were found; with OA from 86.41% to 88.65% and kappa from 81.26% and 84.61% among the imagery systems considered, the GEOBIA technique combined with the SNIC and GLCM spectral and texture feature discriminations and the RF classifier presented a mapping of the corn crop of the study area that demonstrates an improved and aided the performance of automated multispectral image classification processes.
- Subjects
MATO Grosso (Brazil : State); BRAZIL; GEOGRAPHIC information systems; IMAGE recognition (Computer vision); CROPS; MULTISPECTRAL imaging; RANDOM forest algorithms
- Publication
AgriEngineering, 2024, Vol 6, Issue 1, p491
- ISSN
2624-7402
- Publication type
Article
- DOI
10.3390/agriengineering6010030