Evaluation and calibration of fixed-wing multisensor UAV mobile mapping system: improved results

Krzysztof Bakuła , Wojciech Ostrowski , Magdalena Pilarska , Marcin Szender , Zdzisław Kurczyński

Abstract

Unmanned Aerial Vehicles (UAVs) are willingly used in photogrammetry and remote sensing, especially for image acquisition, and are characterised by high spatial resolution. UAVs can be used for the fast and, if necessary, frequent acquisition of spatial data, especially for small areas. In recent years, new trends in the development of UAVs have emerged, including the integration of various sensors and the application of ultralight laser scanners. Within the described experiment, UAV data, i.e. RGB and NIR imagery, as well as ALS data were obtained over three test areas. For one test area, the flight calibration was performed. 3 strips were oriented perpendicularly to another 3 strips and the flight was performed on two different heights: 120 and 150 m. In order to process the data acquired for the next 3 test areas, the determined calibration parameters were utilised. The oriented images were used to generate RGB and NIR ortophotos, as well as the point cloud using the Dense Image Matching (DIM) algorithm. Height differences between UAV Laser Scanning (ULS) and DIM clouds were calculated for all test areas. Experiment data from Terrestrial Laser Scanning and check points measured with GPS RTK have been used. Finally, an accuracy of less than 10 cm was achieved for the DTM. The results were improved by eliminating the problem of horizontal accuracy, but its influence is still slightly visible on the vertical accuracy of the data. The experiment proved the quality of data obtained with the ultralight scanner mounted on the platform moving with much more speed, being an alternative to manned flight missions and multi-rotors UAVs.
Author Krzysztof Bakuła (FGC / DPTSIS)
Krzysztof Bakuła,,
- Department of Photogrammetry, Teledetection and Spatial Information Systems
, Wojciech Ostrowski (FGC / DPTSIS)
Wojciech Ostrowski,,
- Department of Photogrammetry, Teledetection and Spatial Information Systems
, Magdalena Pilarska (FGC / DPTSIS)
Magdalena Pilarska,,
- Department of Photogrammetry, Teledetection and Spatial Information Systems
, Marcin Szender - [MSP Marcin Szender]
Marcin Szender,,
-
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, Zdzisław Kurczyński (FGC / DPTSIS)
Zdzisław Kurczyński,,
- Department of Photogrammetry, Teledetection and Spatial Information Systems
Journal seriesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, ISSN 1682-1750, [2194-9034], (0 pkt)
Issue year2019
VolXLII-2/W13
Pages189-195
Publication size in sheets0.5
Keywords in EnglishUAV, UAS, Multisensor, LiDAR, accuracy, DEM/DTM, photogrammetry
DOIDOI:10.5194/isprs-archives-XLII-2-W13-189-2019
Internal identifier27/2019
Languageen angielski
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2019_Bakuła_Ostrowski_i_inni_Evaluation_and_calibration_27.pdf 1.29 MB
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2019_Oświadczenie_Bakuła_Ostrowski_i_inni_Evaluation_and_calibration_27.pdf 263.44 KB
Score (nominal)5
Score sourcejournalList
ScoreMinisterial score = 5.0, 24-10-2019, ArticleFromJournal
Publication indicators Scopus Citations = 0
Citation count*1 (2019-12-08)
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