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Politechnika Morska w Szczecinie

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Author Wawrzyniak, Natalia
Affiliation Maritime University of Szczecin, Faculty of Navigation, Chair of Geoinformatics 70-500 Szczecin, ul. Wały Chrobrego 1–2
E-mail nbd.wydzial@am.szczecin.pl
Author Bodus-Olkowska, Izabela
Affiliation Maritime University of Szczecin, Faculty of Navigation, Chair of Geoinformatics 70-500 Szczecin, ul. Wały Chrobrego 1–2
E-mail i.olkowska@am.szczecin.pl
Author Stateczny, Andrzej
Affiliation Maritime University of Szczecin, Faculty of Navigation, Chair of Geoinformatics 70-500 Szczecin, ul. Wały Chrobrego 1–2
E-mail astat@am.szczecin.pl
ISSN printed 1733-8670
URI https://repository.am.szczecin.pl/handle/123456789/504
Abstract Mechanically scanned imaging sonars (MSIS) are mainly used for detection of small objects or aiding in underwater navigation in limited area. Obtained images are detailed and, especially for not experienced user, they may give an impression of a photography. However, the acoustic method of acquisition of sonar data must be taken into account, as understanding observed scene is essential to properly interpret the data. To aid the process of image interpretation the reference data may be used. In this paper the application of bathymetric data to MSIS sonar images is proposed. To match high resolution of MSIS images the density of bathymetric data must exceed the requirements of S-44 IHO norm. For this research a swath bathymetric system based on phase interferometry of acoustic signal was used to obtain such data in shallow waters. The article covers the motivation of usage of such data in comparison to other existing bathymetric systems. The proposed method uses acquired data to create additional channel in sonar image emphasizing sea-bed gradient in relation to sonar head position and distinguish invisible / shadowed areas. Proposed method is based on directional derivative of a sea-bed. Method presented in this article is a part of bigger research on enhancing interpretative potential of stationary sonar images [1]
Pages 154-160
Publisher Scientific Journals of the Maritime University of Szczecin, Zeszyty Naukowe Akademii Morskiej w Szczecinie
Keywords sonar imaging
Keywords MSIS sonar
Keywords bathymetric data
Keywords gradient mapping
Title Application of high-density bathymetric data for visualization of MSIS sonar data
Type Original scientific article
References
  1. STATECZNY A., RATUSZNIAK N.: Improvement of Scanning Sonar Images Interpretative Potencial Based on Multibeam Echodounder Data. Annual of Geomatics, Warszawa 2010.
  2. WAWRZYNIAK N., ZANIEWICZ G.: Wizualizacja ścian nabrzeży za pomocą obrazów sonaru skanującego na potrzeby geoinformatycznego systemu ochrony portu. Roczniki geomatyki, IX(2(46)), 2011.
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  8. LURTON X.: Swath Bathymetry Using Phase Difference: Theoretical Analysis of Acoustical Measurement Precision IEEE. Journal of Oceanic Engineering, Vol. 25, No. 3, 2000.
  9. IHO S-44, IHO Standards for Hydrographic Surveys, 5th ed., 2008.
  10. Technical specification of multibeam echosounder EM3002, Kongsberg 2010, http://www.km.kongsberg.com.
  11. Technical specification of GeoSwath Plus Bathymetric System, Kongsberg 2009, http://www.km.kongsberg.com.
  12. MEDYŃSKA-GULIJ B.: Kartografia i geowizualizacja. Wydawnictwo Naukowe PWN, Warszawa 2011. Other
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ISSN on-line 2392-0378
Language English
Funding No data
Figures 7
Tables 1
Published 2013-09-10
Accepted 2013-08-10
Recieved 2013-07-15


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