Uav-based cadastral mapping: an assessment of the impact of flight parameters and ground truth measurements on the absolute accuracy of derived orthoimages

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Abstract

In the domain of land administration, UAV-based orthophotos are gaining in importance as base data to support the extraction of cadastral boundaries and further visual interpretation, manual digitization, or automated feature detection procedures. However, the fact that UAV-derived geographical information can support decision-making processes that involve people’s land rights ultimately raises questions about the quality of the respective data. Especially geometric accuracy and radiometry can be negatively influenced by poor flight planning, densely populated areas, and adverse meteorological conditions. Thus, this paper takes a closer look at optimal workflows to minimize the need for ground truthing by presenting an experimental assessment of flight parameters and ground truth methods. More than 40 datasets entail the representative basis to investigate the impact on the absolute geometric accuracy of derived UAV-based orthomosaics. Results suggest that UAV data acquisition workflows can cover a wide range of data quality depending on UAV equipment, flight planning parameters and ground truthing strategies. Ultimately, this paper can help to determine the best approach to provide a high-quality data product that satisfies end user and supports the provision of reliable base data for automated or manual extraction of cadastral boundaries.
Original languageEnglish
Title of host publicationThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Subtitle of host publicationISPRS Geospatial Week 2019
Place of PublicationEnschede
PublisherInternational Society for Photogrammetry and Remote Sensing (ISPRS)
Pages613-617
Number of pages5
VolumeXLII-2/W13
DOIs
Publication statusPublished - 4 Jun 2019
Event4th ISPRS Geospatial Week 2019 - University of Twente, Enschede, Netherlands
Duration: 10 Jun 201914 Jun 2019
Conference number: 4
https://www.gsw2019.org/

Publication series

NameInternational Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
PublisherCopernicus
ISSN (Print)2194-9034

Conference

Conference4th ISPRS Geospatial Week 2019
CountryNetherlands
CityEnschede
Period10/06/1914/06/19
Internet address

Keywords

  • ITC-GOLD
  • data quality
  • cadastral mapping
  • geometric accuracy
  • UAV
  • open drone map
  • impact assessment

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    Stöcker, C., Nex, F., Koeva, M., & Gerke, M. (2019). Uav-based cadastral mapping: an assessment of the impact of flight parameters and ground truth measurements on the absolute accuracy of derived orthoimages. In The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences: ISPRS Geospatial Week 2019 (Vol. XLII-2/W13, pp. 613-617). (International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences). Enschede: International Society for Photogrammetry and Remote Sensing (ISPRS). https://doi.org/10.5194/isprs-archives-XLII-2-W13-613-2019