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dc.contributor.authorMesas-Carrascosa, Francisco Javier-
dc.contributor.authorCastro, Ana Isabel de-
dc.contributor.authorTorres-Sánchez, Jorge-
dc.contributor.authorTriviño-Tarradas, Paula-
dc.contributor.authorJiménez-Brenes, Francisco Manuel-
dc.contributor.authorGarcía-Ferrer, Alfonso-
dc.contributor.authorLópez-Granados, Francisca-
dc.date.accessioned2021-01-19T10:40:22Z-
dc.date.available2021-01-19T10:40:22Z-
dc.date.issued2020-01-18-
dc.identifierdoi: 10.3390/rs12020317-
dc.identifiere-issn: 2072-4292-
dc.identifier.citationRemote Sensing 12(2): 317 (2020)-
dc.identifier.urihttp://hdl.handle.net/10261/227042-
dc.descriptionThis article belongs to the Special Issue Remote Sensing in Viticulture.-
dc.description.abstractRemote sensing applied in the digital transformation of agriculture and, more particularly, in precision viticulture offers methods to map field spatial variability to support site-specific management strategies; these can be based on crop canopy characteristics such as the row height or vegetation cover fraction, requiring accurate three-dimensional (3D) information. To derive canopy information, a set of dense 3D point clouds was generated using photogrammetric techniques on images acquired by an RGB sensor onboard an unmanned aerial vehicle (UAV) in two testing vineyards on two different dates. In addition to the geometry, each point also stores information from the RGB color model, which was used to discriminate between vegetation and bare soil. To the best of our knowledge, the new methodology herein presented consisting of linking point clouds with their spectral information had not previously been applied to automatically estimate vine height. Therefore, the novelty of this work is based on the application of color vegetation indices in point clouds for the automatic detection and classification of points representing vegetation and the later ability to determine the height of vines using as a reference the heights of the points classified as soil. Results from on-ground measurements of the heights of individual grapevines were compared with the estimated heights from the UAV point cloud, showing high determination coefficients (R² > 0.87) and low root-mean-square error (0.070 m). This methodology offers new capabilities for the use of RGB sensors onboard UAV platforms as a tool for precision viticulture and digitizing applications.-
dc.description.sponsorshipThis research was funded by the AGL2017-82335-C4-4R project (Spanish Ministry of Science, Innovation and Universities, AEI-EU FEDER funds).-
dc.languageeng-
dc.publisherMultidisciplinary Digital Publishing Institute-
dc.relationMICIU/ICTI2017-2020/AGL2017-82335-C4-4-R-
dc.relation.isversionofPublisher's version-
dc.rightsopenAccess-
dc.subjectUAV imagery-
dc.subjectGrapevine height-
dc.subjectDSM-
dc.subjectRGB sensor-
dc.subjectStructure-
dc.subjectVineyard-
dc.titleClassification of 3D Point Clouds Using Color Vegetation Indices for Precision Viticulture and Digitizing Applications-
dc.typeartículo-
dc.relation.publisherversionhttp://doi.org/10.3390/rs12020317-
dc.date.updated2021-01-19T10:40:22Z-
dc.rights.licensehttp://creativecommons.org/licenses/by/4.0/-
dc.contributor.funderMinisterio de Ciencia, Innovación y Universidades (España)-
dc.contributor.funderEuropean Commission-
dc.contributor.funderAgencia Estatal de Investigación (España)-
dc.relation.csic-
dc.identifier.funderhttp://dx.doi.org/10.13039/501100011033es_ES
dc.identifier.funderhttp://dx.doi.org/10.13039/501100000780es_ES
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