publication . Article . Other literature type . 2020

INTERACTION BETWEEN DIRECT GEOREFERENCING, CONTROL POINT CONFIGURATION AND CAMERA SELF-CALIBRATION FOR RTK-BASED UAV PHOTOGRAMMETRY

H.-J. Przybilla; M. Bäumker; T. Luhmann; H. Hastedt; M. Eilers;
Open Access English
  • Published: 06 Aug 2020
Abstract
Abstract. Unmanned Aerial Vehicles (UAV) are enjoying increasing popularity in the photogrammetric community. The Chinese supplier DJI is the market leader with about 70% of the global consumer UAV market. The Phantom model has been available for more than 10 years and its current version "RTK" is equipped with a 2-frequency GNSS receiver, as a basis for direct georeferencing of image flights, using RTK or PPK technologies.In the context of the paper, different case studies are investigated, which allow statements on the geometric accuracy of UAV image flights as well as on the self-calibration of the camera systems.In the first example, four DJI Phantom 4 RTK systems are examined, which were flown in a cross flight pattern configuration on the area of the UAV test field "Zeche Zollern" in Dortmund, Germany. The second example analyses the results of an open moorland area where the establishment of GCPs is extremely difficult and expensive, hence direct georeferencing offers a promising way to evaluate deformations, soil movements or mass calculations. In this example a DJI Matrice 210 v2 RTK drone has been used and the results of two different software packages (Agisoft Metashape and RealityCapture) are analysed. The third example presents a reference building that has been established by the Lower Saxony administration for geoinformation in order to evaluate UAV photogrammetry for cadastral purposes. Here again a DJI Phantom 4 RTK has been tested in a variety of flight configurations and a large number of high precision ground control and check points.The case studies show that the RTK option leads to sufficient results if at least 1 GCP is introduced. Flights without any GCPs lead to a significant height error in the order of up to 30 GSD.
Persistent Identifiers

doi: 10.5194/isprs-archives-xliii-b1-2020-485-2020

Fields of Science (FOS) [Beta]
01 natural sciences, 0105 earth and related environmental sciences, 010504 meteorology & atmospheric sciences, 02 engineering and technology, 0202 electrical engineering, electronic engineering, information engineering, 020206 networking & telecommunications
Subjects
free text keywords: lcsh:Technology, lcsh:T, lcsh:Engineering (General). Civil engineering (General), lcsh:TA1-2040, lcsh:Applied optics. Photonics, lcsh:TA1501-1820, Drone, Geographic information system, business.industry, business, Computer science, GNSS applications, Georeference, Context (language use), Calibration, Camera resectioning, Real-time computing, Photogrammetry, Cadastre
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Other literature type . 2020
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AEROTAS, 2020: Phantom 4 RTK - PPK Processing Workflow. https://www.aerotas.com/phantom-4-rtk-ppk-processingworkflow. Last access: 19.01.2020 Bäumker, M., 2014: Zeitreihenanalyse der Daten der GNSS Referenzstation der Hochschule Bochum. In: Zeitabhängige Messgrößen - Ihre Daten haben (Mehr-)Wert. Beiträge zum 129.

DVW-Seminar am 26. und 27. Februar 2014 in Hannover, Schriftenreihe des DVW, Band 74 (Hrsg. DVW e.V. - Gesellschaft für Geodäsie, Geoinformation und Landmanagement).

Bäumker, M. 2020: Labor für Physikalische Messtechnik der HS Bochum. https://www.hochschule-bochum.de/fbg/ einrichtungen-im-fachbereich/labor-fuer-physikalischemesstechnik/. Last access: 19.01.2020 BKG, 2020a: Die Höhenbezugsfläche von Deutschland. https://www.bkg.bund.de/DE/Ueber-das-BKG/Geodaesie/ Integrierter Raumbezug/Hoehenbezugsflaeche/hoehenbezug .html. Last access: 15.01.2020 BKG, 2020b: Onlineberechnung von Quasigeoidhöhen mit dem GCG2016, http://gibs.bkg.bund.de/geoid/gscomp.php?p=g. Last access: 15.01.2020 DJI, 2020: Phantom 4 RTK https://www.dji.com/de/phantom-4-rtk/info. 15.01.2020 EMLID, 2020: GPS post-processing. https://docs.emlid.com/reachm-plus/common/tutorials/gps-postprocessing/. Last access: 19.01.2020 Gerke, M., Przybilla, H.-J., 2016: Accuracy analysis of photogrammetric UAV image blocks: influence of onboard RTK-GNSS and cross flight patterns. Zeitschrift für Photogrammetrie, Fernerkundung und Geoinformation (PFG). Heft 1, 2016.

Handelsblatt, 2020: Diese chinesische Firma hat mit Drohnen den Massenmarkt erobert. https://www.handelsblatt.com/technik/digitale-revolution/ digitale-revolution-diese-chinesische-firma-hat-mit-drohnenden-massenmarkt-erobert/25395412.html?ticket=ST-1134012- TrivDX4ReHLfHg6nRiij-ap2. Last access: 19.01. 2020 KLAUPPK, 2020: https://klauppk.com/klauppk-software-forthe-phantom4-rtk-2/. Last access: 19.01.2020 Kreyenkamp, A., 2020: Planung und Realisierung eines Vergleichspunktfeldes für Katasteranwendungen unter Einsatz eine DJI Phantom 4 RTK. Unpublished bachelor thesis, Jade University, Oldenburg.

Przybilla, H.-J., Reuber, C., Bäumker, M., Gerke, M., 2015: Untersuchungen zur Genauigkeitssteigerung von UAVBildflügen. - 35. Wissenschaftlich-Technische Jahrestagung der DGPF 24: 45-54. [OpenAIRE]

Przybilla, H.-J., Bäumker, M., Vieten, J., 2018: Das UAVTestfeld Zeche Zollern in Dortmund. Schriftenreihe des DVW, Band 89, S. 61 - 80, Wißner-Verlag, Augsburg, ISBN: 978-3- 95786-146-7.

Przybilla, H.-J., Bäumker, M., 2020: RTK and PPK: GNSSTechnologies for direct georeferencing of UAV image flights. FIG Proceedings Working Week 2020. https://fig.net/ resources/proceedings/fig_proceedings/fig2020/papers/ts01b/TS 01B_przybilla_manfred_10801.pdf. Last access: 27.04.2020 SAPOS, 2020: SAPOS-Dienste im Überblick. https://www.sapos.de/dienste-im-ueberblick.html. Last access: 15.01.2020

Takasu, T., 2020: RTKLIB, Open Source Program Package for RTK-GPS. http://gpspp.sakura.ne.jp/rtklib/rtklib.htm. Last access: 15.01.2020

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