{"datasetrec":{"DasID":7952,"Acronym":null,"StandardTitle":"Orthophotos and DSMs/DTM derived from RPAS flights over the nature reserve Landschap De Liereman in Flanders, Belgium","OrigTitle":null,"OrigTitleLangID":null,"OrigTitleLangCode":null,"OrigTitleLang":null,"OrigTitleLangNL":null,"VersionName":"1","ContactEmail":null,"VersionDate":null,"VersionDay":17,"VersionMonth":6,"VersionYear":2019,"SizeReference":null,"EngAbstract":"Data were collected by the Research Institute for Nature and Forest (INBO) with a fixed wing drone Gatewing X100 in 2015 (7 flights). RGB data were acquired using an off-the-shelf Ricoh GR Digital IV camera, with the following image bands: 1: red, 2: green, 3: blue, 4: alpha channel.\r\n\r\nAn additional flight campaign was commissioned by INBO and carried out by the Flemish Institute for Technological Research (VITO) in 2017 with a fixed wing drone SenseFly eBee. Multispectral data were acquired using a Parrot Sequoia camera, with the following image bands: 1: green, 2: red, 3: red edge, 4: NIR, 5: alpha channel. with a Parrot Sequoia camera. Raw data for this flight campaign are not available.","EngDescr":"Study area: Landschap De Liereman is a nature reserve situated in Oud-Turnhout, in the province of Antwerp, Flanders, Belgium. The area is managed by the nature conservation NGO Natuurpunt and consists of a diverse landscape of wet and dry heathlands, Nardus grasslands on siliceous soils, forests and transition mires, as well as some remaining arable fields and high-intensity agricultural grasslands.\r\n<p><br>\r\nData processing: The raw data were processed to Digital Surface Models and orthophotos by VITO in 2017. For the 2017 campaign by VITO, the outputs also include a Digital Terrain Model (DTM). Images with coarse GPS coordinates were imported and processed in Agisoft PhotoScan Pro 1.4.x, a structure-from-motion (SfM) based photogrammetry software program. After extraction and matching of tie points, a bundle adjustment leads to a sparse point cloud and a refined set of camera position and orientation values. From there, a point cloud densification and classification into ground and non-ground points was performed, leading to a rasterized digital surface model (DSM) and digital terrain model (DTM). Finally, a true orthomosaic was projected onto the DTM.\r\n<p><br>\r\nCoordinate reference system: All geospatial data have the coordinate reference system EPSG:31370 - Belgian Lambert 72.\r\n<p><br>\r\nThe DOI in the citation represents all versions. To find the DOI of the different versions, go to the Zenodo record.","OrigAbstract":null,"OrigDescr":null,"Comments":null,"ReleaseDate":null,"ReleaseDate0":null,"OrigDescrLang":null,"EmbargoDate":null,"OrigDescrLangNL":null,"OrigLangCode":null,"OrigLangCodeExtended":null,"OrigLangID":null,"DescrCompFlag":0,"DescrTransFlag":0,"Citation":"Vanden Borre, Jeroen, Klaas Pauly, Van Hoey, Stijn, De Reu, Jeroen, & Desmet, Peter. (2019). Orthophotos and DSMs/DTM derived from RPAS flights over the nature reserve Landschap De Liereman in Flanders, Belgium [Data set]. Zenodo.","AccessConstraints":null,"UDate":"2021-12-07","CDate":"2021-12-07","CurrencyDate":null,"RevisionDate":null,"DateLastModified":{"date":"2026-05-30 01:37:59.451226","timezone_type":1,"timezone":"+02:00"},"CheckedFlag":0,"PublicFlag":1,"VlizCoreFlag":1,"MarineFlag":0,"FreshFlag":1,"BrackishFlag":0,"TerrestrialFlag":1,"StatusID":1,"DasType":"Data","DasTypeID":1,"DasOrigin":"Research: field survey","Progress":"Completed","AccessConstraint":"CC 0 (No Rights Reserved)","AccConstrEN":"CC 0 (No Rights Reserved)","AccConstrDisplay":"<a rel=\"license\" href=\"https://creativecommons.org/publicdomain/zero/1.0/\" target=\"_blank\"><img alt=\"CC0\" style=\"border:0px;height:15px;width:80px;vertical-align:middle;\" src=\"https://www.marinespecies.org/aphia/images/cc/cc-zero.png\" /></a> To the extent possible under law, the person who associated CC0 with this dataset has waived all copyright and related or neighboring rights to this dataset.","License":"https://creativecommons.org/publicdomain/zero/1.0/","AccConstrDescription":"CC0 enables scientists, educators, artists and other creators and owners of copyright- or database-protected content to waive those interests in their works and thereby place them as completely as possible in the public domain, so that others may freely build upon, enhance and reuse the works for any purposes without restriction under copyright or database law.","Lineage":null,"AccConID":19,"DOI":"10.5281/zenodo.3063334"},"dois":null,"spcols":null,"keywords":[{"ThesaurusTerm":"Drone aircraft","ThesTypID":3,"ThesType":"Transportation Research Thesaurus","Code":"Qbkomh","Description":"Remotely-controlled or preprogrammed pilotless aircraft, usually military","OrigThesTerm":"Drone aircraft","DutchTerm":null,"URI":null,"DasKeywordDescr":null},{"ThesaurusTerm":"Environment management","ThesTypID":2,"ThesType":"CSA Technology Research Database Master Thesaurus","Code":null,"Description":null,"OrigThesTerm":"Environment management","DutchTerm":null,"URI":null,"DasKeywordDescr":null},{"ThesaurusTerm":"Modelling","ThesTypID":1,"ThesType":"ASFA Thesaurus List","Code":"c_230ab86c","Description":null,"OrigThesTerm":"Modelling","DutchTerm":"Modellering","URI":"http://aims.fao.org/aos/agrovoc/c_230ab86c","DasKeywordDescr":null},{"ThesaurusTerm":"Orthophotos","ThesTypID":2,"ThesType":"CSA Technology Research Database Master Thesaurus","Code":null,"Description":null,"OrigThesTerm":"Orthophotos","DutchTerm":null,"URI":null,"DasKeywordDescr":null},{"ThesaurusTerm":"Remote sensing","ThesTypID":1,"ThesType":"ASFA Thesaurus List","Code":"c_6498","Description":null,"OrigThesTerm":"Remote sensing","DutchTerm":"Teledetectie","URI":"http://aims.fao.org/aos/agrovoc/c_6498","DasKeywordDescr":null},{"ThesaurusTerm":"Unmanned aircraft","ThesTypID":2,"ThesType":"CSA Technology Research Database Master Thesaurus","Code":null,"Description":null,"OrigThesTerm":"Unmanned aircraft","DutchTerm":null,"URI":null,"DasKeywordDescr":null}],"parents":null,"children":null,"othrel":null,"othrelrev":null,"ownerships":[{"OrderNr":1,"Surname":"Vanden Borre","Firstname":"Jeroen","Initials":"J.","PerPublicFlag":1,"AdrID":null,"Email":null,"InsPublicFlag":1,"Acronym":"INBO","OrigNameLangCode":"en","OrigNameLangID":15,"FullOrigName":"Flemish Government; 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