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Unsupervised segmentation applied on sonar images
1997This work deals with unsupervised sonar image segmentation. We present a new estimation segmentation procedure using the recent iterative method of estimation called Iterative Conditional Estimation (ICE) [1]. This method takes into account the variety of the laws in the distribution mixture of a sonar image and the estimation of the parameters of the ...
Maurice Mignotte +3 more
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Sonar image interpretation and modelling
Proceedings of Symposium on Autonomous Underwater Vehicle Technology, 2002The problem addressed is that of providing a model-based system to interpret sonar data from an autonomous or remotely controlled vehicle instrumentation, to aid navigation, improve sea floor mapping techniques, identify objects, simulate acoustic images for survey and analysis, or to aid the design of sonar systems.
G.T. Russell +3 more
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2008
In this thesis, a sonar mine detection system is presented. The three stages of the system, image enhancement, edge detection and data compression are analyzed. For each stage, different approaches are studied and the appropriate algorithm is chosen. For image enhancement, a cascaded morphological enhancement algorithm is developed.
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In this thesis, a sonar mine detection system is presented. The three stages of the system, image enhancement, edge detection and data compression are analyzed. For each stage, different approaches are studied and the appropriate algorithm is chosen. For image enhancement, a cascaded morphological enhancement algorithm is developed.
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Underwater Localization and Mapping with Imaging Sonar
2019Acoustic imaging sonars have been used for a variety of tasks intended to increase the autonomous capabilities of underwater vehicles. Among the most critical tasks of any autonomous vehicle are localization and mapping, which are the focus of this work.
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Synthetic aperture sonar applied to a multibeam volume imaging sonar
The Journal of the Acoustical Society of America, 2004The possibility of using synthetic aperture sonar (SAS) processing techniques on a multibeam volume imaging sonar (the Buried Object Search Sonar, or BOSS) is explored. A system algorithm is developed which involves first forming several parallel synthetic apertures from a translated array oriented in the cross-track direction, then beamforming the ...
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Segmentation of Multispectral Sonar Images
1995Acoustic images obtained from sonar may consist of multiple objects like undersea vehicles, ship wrecks, rocks, mines etc. Sometimes, strong echoes due to surface or bottom reverberation may also cause confusion in interpretation of such images. Such complex scenarios with multiple objects would first require segmentation of the acoustic image to ...
N. Rajpal, R. Bahl, E. P. Selvan
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Structural Noise Removal for Imaging Sonar: A Case Study for BlueView Imaging Sonar
2021 6th International Conference on Transportation Information and Safety (ICTIS), 2021Peng Zhou, Deshan Chen, Xuanxuan Teng
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Molecular Imaging in Oncology: Current Impact and Future Directions
Ca-A Cancer Journal for Clinicians, 2022Martin G. Pomper, Steven P Rowe
exaly
Improving Performance of Three-Dimensional Imaging Sonars Through Deconvolution
Applied Acoustics, 2021Cheng Chi, Haining Huang, Jiyuan Liu
exaly