Application of high-density bathymetric data for visualization of MSIS sonar data

• Autorzy: Wawrzyniak N. , Bodus-Olkowska I. , Stateczny A.
• Języki publikacji: EN

Abstrakty

EN

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].

Słowa kluczowe

EN

sonar imaging; MSIS sonar; bathymetric data; gradient mapping

• Wydawca: Wydawnictwo Naukowe Akademii Morskiej w Szczecinie
• Czasopismo: Zeszyty Naukowe / Akademia Morska w Szczecinie
• Rocznik: 2013
• Tom: nr 35 (107)
• Strony: 154--160
• Opis fizyczny: Bibliogr. 13 poz., rys., tab.

Twórcy

autor

Wawrzyniak N.

• Maritime University of Szczecin, Faculty of Navigation, Chair of Geoinformatics 70-500 Szczecin, ul. Wały Chrobrego 1–2

autor

Bodus-Olkowska I.

• Maritime University of Szczecin, Faculty of Navigation, Chair of Geoinformatics 70-500 Szczecin, ul. Wały Chrobrego 1–2

autor

Stateczny A.

• Maritime University of Szczecin, Faculty of Navigation, Chair of Geoinformatics 70-500 Szczecin, ul. Wały Chrobrego 1–2

Bibliografia

• 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.
• 3. HAC B., KRYGER Z., SZATAN M.: Art of sonar image interpretation. Sonar operator handbook. Gdynia 1998 [in Polish].
• 4. RATUSZNIAK N., PAŁCZYŃSKI M.: Method of Visualization for Scanning Sonar Image, Pomiary Automatyka Kontrolna Vol. 56, No. 12, 2010.
• 5. CAMBELL J.B.: Introduction to Remote Sensing. New York 2002, 122–155.
• 6. KURCZYŃSKI Z., WOLNIEWICZ W.: Ocena przydatności obrazów satelitarnych o bardzo dużej rozdzielczości (VHRS) do tworzenia bazy danych topograficznych. Przegląd Geodezyjny 05, 2005, 3–10.
• 7. TADEUSIEWICZ R., OGIELA M.: Semantic Content of the Images. Problemy współczesnej nauki – teoria i zastosowania. Informatyka, Warszawa 2009.
• 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.
• 13. Grządziel A.: Application of a sidescan sonar in hydrographic work. Przegląd Morski 7–8, 2004 [in Polish].