The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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Articles | Volume XLIII-B1-2021
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLIII-B1-2021, 165–171, 2021
https://doi.org/10.5194/isprs-archives-XLIII-B1-2021-165-2021
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLIII-B1-2021, 165–171, 2021
https://doi.org/10.5194/isprs-archives-XLIII-B1-2021-165-2021

  28 Jun 2021

28 Jun 2021

AN ACCURATE REAL-TIME UAV MAPPING SOLUTION FOR THE GENERATION OF ORTHOMOSAICS AND SURFACE MODELS

A. Kern1, P. Fanta-Jende2, P. Glira2, F. Bruckmüller2, and C. Sulzbachner2 A. Kern et al.
  • 1Technische Universität Braunschweig, Institute of Flight Guidance, Germany
  • 2AIT – Austrian Institute of Technology, Center for Vision, Automation and Control, Assistive & Autonomous Systems, Austria

Keywords: UAV, SLAM, real-time, orthorectification, surface model, rapid mapping

Abstract. UAVs have become an indispensable tool for a variety of mapping applications. Not only in the area of surveying, infrastructure planning and environmental monitoring tasks but also in time-critical applications, such as emergency and disaster response. Although UAVs enable rapid data acquisition per se, data processing usually relies on offline workflows. This contribution presents an accurate real-time data processing solution for UAV mapping applications as well as an extensive experimental and comparative study to the commercial offline solution Pix4D on the absolute accuracy of orthomosaics and digital surface models. We show that our procedure achieves an absolute horizontal and vertical accuracy of about 1 m without the use of ground control. The code will be made publicly available.