The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
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Articles | Volume XLII-2/W13
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-2/W13, 1053–1059, 2019
https://doi.org/10.5194/isprs-archives-XLII-2-W13-1053-2019
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-2/W13, 1053–1059, 2019
https://doi.org/10.5194/isprs-archives-XLII-2-W13-1053-2019

  05 Jun 2019

05 Jun 2019

DETECTION AND EXTRACTION OF WATER BOTTOM TOPOGRAPHY FROM LASERBATHYMETRY DATA BY USING FULL-WAVEFORM-STACKING TECHNIQUES

D. Mader1, K. Richter1, P. Westfeld2, R. Weiß3, and H.-G. Maas1 D. Mader et al.
  • 1Institute of Photogrammetry and Remote Sensing, Technische Universität Dresden, Germany
  • 2Federal Maritime and Hydrographic Agency (BSH), Section Geodetic-hydrographic Techniques and Systems, Germany
  • 3German Federal Institute of Hydrology, Germany

Keywords: LiDAR, bathymetry, full-waveform processing, full-waveform-stacking

Abstract. Airborne LiDAR bathymetry allows an efficient and area-wide acquisition of water bottom points in shallow water areas. However, the measurement method is severely limited by water turbidity, impending a reliable detection of water bottom points at higher turbidity or in deeper water bodies. This leads to an incomplete acquisition of the water bottom topography. In this contribution, advanced processing methods are presented, which increase the penetration depth compared to the original processed data and enable a reliable extraction and detection of bottom points in deeper water bodies. The methodology is based on the analysis of correlated neighborhood information assuming a steady water bottom. The results confirm a significantly higher penetration depth with a high reliability of the additionally extracted water bottom points along with a larger coverage of the water bottom topography.