Abstract
This paper consider the problem of positioning a ROV in a partially structured underwater environment using a control strategy mainly based on visual feedback. In order to reach and to maintain the desired position with respect to a known target, images taken by a CCD camera are processed and the resulting information is fused with that coming from other sensors. Low level control actions are based on PI controller, endowed with a fuzzy adaptation mechanism. The performances of the developed control scheme are evaluated and discussed on the bases of experimental results.
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