3D seafloor reconstruction using data from side scan and synthetic aperture sonar

• Autorzy: Bikonis K. , Łubniewski Z.
• Języki publikacji: EN

Abstrakty

EN

Side scan and synthetic aperture sonars are widely used imaging systems in the underwater environment. They are relatively cheap and easy to deploy, in comparison with more powerful sensors, like multibeam echosounders. Although side scan and synthetic aperture sonars does not provide seafloor bathymetry directly, their records are finally related to seafloor images. Moreover, the analysis of such images performed by human eye allows creating semi-spatial impressions of seafloor images obtained from side scan sonar echograms. In the paper, some techniques for 3D seafloor shape reconstruction from side scan and synthetic aperture sonars are presented. They are based on Shape From Shading (SFS) approach, which is one of classical problems in computer vision. The method for reconstruction of 3D seafloor relief using the information from both the currently processed and previous ping is presented. The advantage of the presented methods is their simplicity and the ability to produce the results within sequential, i.e. “one run” processing of side scan sonar image. Another algorithm relies on estimating the altitude gradient of the insonified surface from sonar data, combined with the use of dimension of shadow areas for estimation of the current elevation change. The presented results are promising and also show to some extent how the performance of the proposed algorithm might be improved in further investigation.

Słowa kluczowe

EN

seafloor reconstruction; underwater environment; seafloor

• Wydawca: Polskie Towarzystwo Akustyczne. Oddział Gdański
• Czasopismo: Hydroacoustics
• Rocznik: 2010
• Tom: Vol. 13
• Strony: 25--30
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Bikonis K.

autor

Łubniewski Z.

• Gdansk University of Technology Narutowicza 11/12, 80-233 Gdansk, Poland,

Bibliografia

• [1] K. Bikonis, M. Moszynski, A. Stepnowski, Submerged object imaging using virtual reality modeling language, Proceedings of International Congress on the Application of Recent Advances in Underwater Detection and Survey Techniques to Underwater Archeology, pp. 215-220, Bodrum, Turkey, 2004.
• [2] D. R. Jackson, D. P. Winebrenner, A. Ishimaru, Application of the composite roughness model to high-frequency bottom backscattering, J. Acoust. Am, 79(5), pp. 1410-1422, 1986.
• [3] E. Dura, D. Lane, J. Bell, Automatic 3D reconstruction of mine geometric using multiple side scan sonar images, In GOATS 2000, La Spezia, Italy, E. Bovio, A. Schmidt, SACLANTCEN CP-46, 2001.
• [4] R. Zhang, P. S. Tsai, J. E. Cryer, M. Shah, Shape from shading: A survey, IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol. 21, pp. 690-705, 1999.
• [5] K. Bikonis, M. Moszynski, Z. Lubniewski, A. Stepnowski, Three-dimensional Imaging of Submerged Objects by Side-Scan Sonar Data Processing, 1st International Conference on Underwater Acoustic Measurements: Technologies and Results, Heraklion, Greece, 2005.
• [6] Z. Lubniewski, K. Bikonis, Seafloor Relief Reconstruction from Side Scan Sonar Data, Hydroacoustics Vol. 10, pp. 101-106, 2007.