Results 181 to 190 of about 17,299 (218)
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Underwater floor pattern matching with an unmanned underwater vehicle
2015 12th International Conference on Ubiquitous Robots and Ambient Intelligence (URAI), 2015The localization of unmanned underwater vehicle (UUV) is important for the UUV to inspect or manipulator objects. We assume that there is an UUV with a camera sensor and the UUV uses the underwater floor pattern for localization. Because the pattern is known beforehand, the pattern matching between the pattern image and the camera image lets the UUV ...
null Jung-Tae Kim +5 more
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Vision based tracking for unmanned underwater vehicles
Proceedings of the 35th SICE Annual Conference. International Session Papers, 2005This paper presents some applicati .ons of image processing algorithms for underwater 4D environments. Unlike land based systems, underwater systems have got less attention in the past due to hardware restriction. In this paper we introduce a filtering technique for underwater images to reduce certain unwanted features, which are unique to the ...
B.A.A.P Balasuriya, T. Ura
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Sonar-based guidance of unmanned underwater vehicles
Advanced Robotics, 2001This paper addresses the problem of the design and coordination of guidance and sonar-based motion estimation algorithms for unmanned underwater vehicles. In the framework of a two layered hierarchical architecture uncoupling the system's dynamics and kinematics, a couple of guidance laws for approaching a target with the desired orientation and ...
Caccia M, Bruzzone G, Veruggio G
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Guidance of unmanned underwater vehicles: experimental results
Proceedings 2000 ICRA. Millennium Conference. IEEE International Conference on Robotics and Automation. Symposia Proceedings (Cat. No.00CH37065), 2002This paper addresses the problem of guidance of unmanned underwater vehicles (UUVs). In the framework of a two layered hierarchical architecture decoupling the system dynamics and kinematics, two guidance laws for approaching a target with the desired orientation and following an environmental feature have been designed with Lyapunov-based techniques ...
M. Caccia, G. Bruzzone, G. Veruggio
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Unmanned underwater vehicle broadband synthetic aperture sonar
Oceans '02 MTS/IEEE, 2005The experimental synthetic aperture sonar (SAS) in use at the US Navy Coastal Systems Station (CSS) in Panama City, Florida, was first fielded in 1996. Since then, the system has proved itself to be a reliable high-quality sensor. The original configuration provides for simultaneous imaging at two frequency bands; one centered at 20 kHz (10 kHz ...
J.T. Christoff +2 more
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Romeo goes to Antarctica [unmanned underwater vehicle]
IEEE Oceanic Engineering Society. OCEANS'98. Conference Proceedings (Cat. No.98CH36259), 1998Deals with the first operational campaign of Romeo, the latest unmanned underwater vehicle developed at CNR-IAN. Romeo has been designed as an operational testbed to perform research on intelligent vehicles in the real subsea environment. Its main application field is the development of advanced methodologies for marine science.
R. Bono +4 more
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Systems research for unmanned autonomous underwater vehicles
Proceedings of OCEANS'94, 2002Unmanned autonomous underwater vehicles (AUVs) hold considerable promise as a major new tool for gathering data in the deep ocean. However, developments are needed in a range of key technologies before reliable and cost-effective deep-diving vehicles (6000 metres depth) can be fully realised.
P.G. Collar +4 more
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Robust control of an unmanned underwater vehicle
Proceedings of the 37th IEEE Conference on Decision and Control (Cat. No.98CH36171), 2002The paper briefly describes the design of a robust controller for an unmanned underwater vehicle (UUV) using polynomial eigenstructure assignment. The controller decouples the vertical motion and the pitching motion of the UUV using a first order dynamic feedback structure.
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Jellyfish inspired underwater unmanned vehicle
SPIE Proceedings, 2009Alex Villanueva +4 more
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