Category: Phantom

Oblique and cross-grid UAV imaging flight plans – a sneak preview of the analysis of resulting 3D point cloud properties for deciduous forest surfaces – low cost 3D mapping with the Phantom 4R (RTK)

Flight plans / photogrammetry / structure from motion / Metashape / oblique imaging / 3D point clouds / Lastools / Phantom 4R RTK / beech tree / deciduous trees / forest stand structure “Oblique and cross-grid UAV imaging flight plans – a sneak preview of the analysis of resulting 3D point cloud properties for deciduous forest surfaces” by Sören Hese....

Reflectance Calibration with Phantom 4M Multispectral data (Updated 14-05-2021)

Last Update: 14.5.2021 There was some confusion in the past on how to process the Phantom 4M Multispectral data to “reflectance” level. Here a short summary for Agisoft Metashape 1.7.2 with a 50% reflectance panel from Micasense (update: now its from SphereOptics). In general: 1. the P4M sun illu. sensor works for normalizing the within flight campaign variations while 2....

Die EU Drohnenverordnung

Die neue EU Drohnenverordnung ist in Kraft getreten. Sie gilt im Prinzip bereits seit 1.1.2021. Was hat sich geändert? Einiges! Nach der neuen Verordnung sind alle derzeit im Betrieb befindlichen Drohnen keine zertifizierten Drohnen. Hier hinkt die Industrie der Verordnung hinterher. Die Verordnung differenziert in der offenen Kategorie “OPEN” nach dem Grad der Gefährdung, der von einer Drohne ausgehen könnte...

Stand Gap Analysis in the Hainich National Park between 2018 and 2020.

Some results from our stand gap analysis for July 2018 , July 2019 and July 2020 are now finished. Some figures below. There is a strong change process in the northern part of the Hainich landscape region in progress – likely dominated by forest management activities . removing the dying beech trees from the stand. Our spatial analysis indicates that...

Phantom 4 Multispectral (RTK)

DJI did it again – the leading manufacturer of compact “of the shelve” drone solutions modified the Phantom 4 RTK and added a fully integrated multispectral camera. Those that are working with these (micro)multispectral camera systems on small UAV platforms couldnt really believe this news. DJI modified the Phantom 4 RTK (that turned out to be a game changer in...

The Hainich Flight Campaign

At the end of August 2018 a consortium was initiated by Dr. C. Thiel (DLR) to start a flight campaign within the Hainich national parc area in Thuringia (DLR Jena: Dr. C. Thiel, FSU Jena: Dr. S. Hese, University Göttingen (LS für Bioklimatologie, Prof. Dr. A. Knohl / Dipl.-Ing F. Tiedemann), national parc Hainich: Manfred Grossmann & Andreas Henkel).  The region is...