Improvement of Full Waveform Airborne Laser Bathymetry Data Processing based on Waves of Neighborhood Points

Tomasz Kogut , Krzysztof Bakuła

Abstract

Measurements of the topography of the sea floor are one of the main tasks of hydrographic organizations worldwide. The occurrence of any disaster in maritime traffic can contaminate the environment formany years. Therefore, increasing attention is being paid to the development of effective methods for the detection and monitoring of possible obstacles on the transport route. Bathymetric laser scanners record the full waveform reflected from the object (target). Its transformation allows to obtain information about the water surface, water column, seabed, and the objects on it. However, it is not possible to identify subsequent returns among all waves, leading to a loss of information about the situation under the water. On the basis of the studies conducted, it was concluded that the use of a secondary analysis of a full waveform of the airborne laser bathymetry allowed for the identification of objects on the seabed. It allowed us to detect further points in the point cloud, which are necessary in the identification of objects on the seabed. The results of the experiment showed that, among the area of experiment where objects on the seabed were located, the number of points increased between 150 and 550% and the altitude accuracy of the seabed elevation model even by 50% to the level of 0.30 m with reference to sonar data depending of types of objects.
Author Tomasz Kogut
Tomasz Kogut,,
-
, Krzysztof Bakuła (FGC / DPTSIS)
Krzysztof Bakuła,,
- Department of Photogrammetry, Teledetection and Spatial Information Systems
Journal seriesRemote Sensing, ISSN 2072-4292, (A 35 pkt)
Issue year2019
Vol11
No10
Pages1-13
Publication size in sheets0.6
Keywords in Englishairborne laser bathymetry, full waveform, object detection
ASJC Classification1900 General Earth and Planetary Sciences
DOIDOI:10.3390/rs11101255
Internal identifier26/2019
Languageen angielski
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2019_Kogut_Bakuła_Improvement_of_Full_26.pdf 19.62 MB
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2019_Oświadczenie_Kogut_Bakuła_Improvement_of_Full_26.pdf 263.16 KB
Score (nominal)35
ScoreMinisterial score = 35.0, 15-07-2019, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2017 = 1.559; WoS Impact Factor: 2017 = 3.406 (2) - 2017=3.952 (5)
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