ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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Articles | Volume V-2-2020
ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., V-2-2020, 671–677, 2020
https://doi.org/10.5194/isprs-annals-V-2-2020-671-2020
ISPRS Ann. Photogramm. Remote Sens. Spatial Inf. Sci., V-2-2020, 671–677, 2020
https://doi.org/10.5194/isprs-annals-V-2-2020-671-2020

  03 Aug 2020

03 Aug 2020

COMPARISON OF SUBAQUATIC DIGITAL ELEVATION MODELS FROM AIRBORNE LASER SCANNING AND IMAGERY

C. Mulsow1, G. Mandlburger2,3, and H.-G. Maas1 C. Mulsow et al.
  • 1Institute of Photogrammetry and Remote Sensing, Technische Universität Dresden, Germany
  • 2Department of Geodesy and Geoinformation, TU Wien, Austria
  • 3Institute of Photogrammetry, University of Stuttgart, Germany

Keywords: bathymetry, laser scanning, DEM, underwater, multi-media photogrammetry, bundle-adjustment

Abstract. The paper describes and compares the workflows and results of generating digital elevation models (DEMs) of underwater areas from airborne laser scanning and aerial stereo images. Based on a combined laser scanning/image data set of an artificial lake, both methods are described and pros/cons are highlighted. The authors focus on the final results, especially on accuracy, completeness and spatial resolution of the underwater DEM’s. Further, practical aspects of processing and complexity of both methods are highlighted too.