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Abstract
The combined approach to seafloor characterisation was investigated. It relies on calculation of several descriptors (parameters) related to seabed type using three types of multibeam sonar data obtained during seafloor sensing: 1) the grey-level sonar images (echograms) of seabed, 2) the 3D model of the seabed surface which consists of bathymetric data, 3) the set of time domain bottom echo envelopes received in the consecutive sonar beams. The proposed method has been tested using field data records acquired from several bottom types in the Gulf of Gdańsk and the promising results have been reported. This paper presents and discusses several processing techniques of the calculated descriptors in the context of their use in seafloor classification. In particular, calculations of the standard deviation of the descriptors for small subsets of data and the application of the Principal Component Analysis procedure (PCA) were investigated.
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Details
- Category:
- Conference activity
- Type:
- publikacja w wydawnictwie zbiorowym recenzowanym (także w materiałach konferencyjnych)
- Title of issue:
- Proceedings of the 2011 International Symposium on Ocean Electronics SYMPOL 2011, 16-18 November 2011, Kochi strony 63 - 69
- Language:
- English
- Publication year:
- 2011
- Bibliographic description:
- Stepnowski A., Łubniewski Z.: Combined method of multibeam sonar signal processing and image analysis for seafloor classification // Proceedings of the 2011 International Symposium on Ocean Electronics SYMPOL 2011, 16-18 November 2011, Kochi/ ed. Centre for Ocean Electronics (CUCENTOL), Department of Electronics, Cochin University of Science and Technology, India New Delhi: Allied Publishers Pvt. Ltd., 2011, s.63-69
- DOI:
- Digital Object Identifier (open in new tab) 10.1109/sympol.2011.6170499
- Verified by:
- Gdańsk University of Technology
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