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This paper describes acoustic and visual instruments developed to perform high resolution surveys of manganese crusts. The instruments consist of an acoustic device developed to perform in situ measurements of manganese crust thickness at depths of up to 3000m, and a vision based mapping system that generates three-dimensional colour reconstructions of the sea floor. The developed systems operate...
There are several approaches for 3 dimensional mapping of the seafloor in the actual colours, many of which require multiple cameras, elaborate algorithms and specially designed vehicles. In this paper a method is presented, which uses minimal equipment and simple algorithms for this task, while treating the data in a fully 3 dimensional way from input to output. Because of the reduced hardware demands,...
Visual surveys of the seafloor are often performed by robotic underwater vehicles and a number of methods exists for transforming photos or video into 2D or 3D reconstructions, most of which utilise navigation data. Laser profiling is a method that is widely used for bathymetry mapping with high vertical resolution, but typically no information of the actual colour is obtained. In this paper we propose...
The use of autonomous underwater vehicles (AUVs) in various research, commercial and military applications has significantly increased in the recent years. Most AUVs available commercially tend to be complex and very expensive. With advances in recent technology, sensors with new functionality or lower cost substitutes have become available. Most existing AUV platforms do not facilitate easy integration...
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