Tree Species Classification in a Complex Brazilian Tropical Forest Using Hyperspectral and LiDAR Data

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorCzech University of Life Sciences Prague (CULS)-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorNational Land Survey of Finland (NLS)-
Autor(es): dc.contributorUniversity of Cambridge-
Autor(es): dc.contributorBrazilian Forest Service (SFB)-
Autor(es): dc.creatorPereira Martins-Neto, Rorai-
Autor(es): dc.creatorGarcia Tommaselli, Antonio Maria-
Autor(es): dc.creatorImai, Nilton Nobuhiro-
Autor(es): dc.creatorHonkavaara, Eija-
Autor(es): dc.creatorMiltiadou, Milto-
Autor(es): dc.creatorSaito Moriya, Erika Akemi-
Autor(es): dc.creatorDavid, Hassan Camil-
Data de aceite: dc.date.accessioned2025-08-21T18:16:06Z-
Data de disponibilização: dc.date.available2025-08-21T18:16:06Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-05-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.3390/f14050945-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/248926-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/248926-
Descrição: dc.descriptionThis study experiments with different combinations of UAV hyperspectral data and LiDAR metrics for classifying eight tree species found in a Brazilian Atlantic Forest remnant, the most degraded Brazilian biome with high fragmentation but with huge structural complexity. The selection of the species was done based on the number of tree samples, which exist in the plot data and in the fact the UAV imagery does not acquire information below the forest canopy. Due to the complexity of the forest, only species that exist in the upper canopy of the remnant were included in the classification. A combination of hyperspectral UAV images and LiDAR point clouds were in the experiment. The hyperspectral images were photogrammetric and radiometric processed to obtain orthomosaics with reflectance factor values. Raw spectra were extracted from the trees, and vegetation indices (VIs) were calculated. Regarding the LiDAR data, both the point cloud—referred to as Peak Returns (PR)—and the full-waveform (FWF) LiDAR were included in this study. The point clouds were processed to normalize the intensities and heights, and different metrics for each data type (PR and FWF) were extracted. Segmentation was preformed semi-automatically using the superpixel algorithm, followed with manual correction to ensure precise tree crown delineation before tree species classification. Thirteen different classification scenarios were tested. The scenarios included spectral features and LiDAR metrics either combined or not. The best result was obtained with all features transformed with principal component analysis with an accuracy of 76%, which did not differ significantly from the scenarios using the raw spectra or VIs with PR or FWF LiDAR metrics. The combination of spectral data with geometric information from LiDAR improved the classification of tree species in a complex tropical forest, and these results can serve to inform management and conservation practices of these forest remnants.-
Descrição: dc.descriptionAcademy of Finland-
Descrição: dc.descriptionFaculty of Forestry and Wood Sciences Czech University of Life Sciences Prague (CULS), Kamýcká 129-
Descrição: dc.descriptionDepartment of Cartography São Paulo State University (FCT/UNSEP), Roberto Simonsen 305, SP-
Descrição: dc.descriptionDepartment of Remote Sensing and Photogrammetry Finnish Geospatial Research Institute (FGI) National Land Survey of Finland (NLS), Vuorimiehentie 5-
Descrição: dc.descriptionDepartment of Geography University of Cambridge, Downing Site, 20 Downing Place-
Descrição: dc.descriptionBrazilian Forest Service (SFB), SCEN Trecho 2, Sede do Ibama, DF-
Descrição: dc.descriptionDepartment of Cartography São Paulo State University (FCT/UNSEP), Roberto Simonsen 305, SP-
Descrição: dc.descriptionAcademy of Finland: 273806-
Idioma: dc.languageen-
Relação: dc.relationForests-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBrazilian Atlantic Forest-
Palavras-chave: dc.subjecthyperspectral imaging-
Palavras-chave: dc.subjectLiDAR-
Palavras-chave: dc.subjectsuperpixel segmentation-
Palavras-chave: dc.subjecttree species mapping-
Título: dc.titleTree Species Classification in a Complex Brazilian Tropical Forest Using Hyperspectral and LiDAR Data-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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