eCPD - Importance of ground control points for the aerial triangulation of UAS-based image flights
Date & Time
Sunday, 27 Feb 2022
- 6:00 pm
This is a recording of a live webinar held on 27 August 2020
Unmanned Aerial Vehicles (UAV), Unmanned Aerial Systems (UAS) or Remotely Piloted Aerial Systems (RPAS) are used frequently for a variety of geodetic applications. To achieve a high level of metric precision for the derived UAS-based products, it is essential to establish ground control points in object space. In this talk, the effects of ground control point configurations on the result of aerial triangulation using image data from low-cost UAS were presented. In addition, the influence of the rolling shutter effect of the compact or system camera used on the aerial triangulation results was demonstrated. Finally, the question of whether ground control points are still necessary for UAS-based aerial flights when using real-time Kinematic GNSS for precise system navigation and determination of exterior orientation parameters was considered.
Prof. Thomas P. Kersten | Head of Photogrammetry & Laser Scanning Lab, HafenCity University Hamburg, Germany
Thomas graduated from Hannover University in Geodesy in 1988. From 1989 to 1995 he worked as research & teaching associate at ETH Zurich in the Institute of Geodesy and Photogrammetry (Chair of Photogrammetry and Remote Sensing). From 1995 – 2000 he worked as a head of Photogrammetry Department and as a member of the Board of Directors at Swissphoto. Since 2001 he is the professor for Photogrammetry & Practical Geodesy at the Hamburg University of Applied Sciences, and from 2006 he holds the same position as professor for Photogrammetry & Laser Scanning at the HafenCity University Hamburg. His main research interests are in the field of automation in 3D recording and modelling as well as sensor integration and calibration. Author of over 200 scientific publications in journals and at international conferences, he organised ten scientific events in Geomatics/Photogrammetry and three summer schools for Cultural Heritage documentation in Trondheim/Norway. He is member of the German Society for Photogrammetry, Remote Sensing and Geoinformation (DGPF), where he served as the Editor of the Journal PFG for four years, as a chair of the Working Group "Optical 3D Measurement Techniques" for six years and where he is currently serving as a chair of the Working Group "Virtual & Augmented Reality" and regularly as program committee member of conferences and reviewer for related journals. In 2017, Thomas gained his PhD at Technical University Dresden.
By registering below, you will receive the link to access the recording, to watch at a time that suits you.
- SSSI: One CPD point
- BOSSI: One survey practice point for viewing plus achievement of 80% passmark on questionnaire or 0.5 pts for viewing only (Code: SSSINSW1015)
Katie Le Miere
National Events Manager