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13 October 2014Underwater laser imaging experiments in the Baltic Sea
Underwater laser imaging is a useful tool for high resolution mapping and identification of threats in coastal and
also turbid waters of harbors and ports. In the recent past, the French-German Research Institute of Saint-Louis
(ISL) and the German Naval Research Department (WTD71-FWG) have performed different measurements in
the Baltic Sea in the field of submarine laser imaging with the aim to evaluate the performance of laser gated
viewing (LGV) and underwater laser scanning (ULS). Different scenarios were tested with respect to varying
environmental conditions. Working near a harbor or on the open sea under sunny and calm or windy and
rainy weather conditions, the measured turbidity, i.e. the attenuation coefficient of the water column, ranges
from 0.4 m-1 to 3 m-1. The experiments and imaging results are discussed with respect to 2D and 3D image
processing under the given environmental conditions.
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Martin Laurenzis, Frank Christnacher, Thomas Scholz, Nicolas Metzger, Stefane Schertzer, Emmanuel Bacher, "Underwater laser imaging experiments in the Baltic Sea," Proc. SPIE 9250, Electro-Optical Remote Sensing, Photonic Technologies, and Applications VIII; and Military Applications in Hyperspectral Imaging and High Spatial Resolution Sensing II, 92500D (13 October 2014); https://doi.org/10.1117/12.2067166