The exploration of offshore gas/oil has been moving to deepwater fields as big reservoirs have been found and technologies have improved. Presently, the most active areas in deepwater gas/oil field development are Africa and the GOM (Gulf of Mexico) in North America. There are many technological challenges in developing deepwater gas/oil fields such as: flow assurance, subsea systems, riser sys...

We present a system detecting the presence of unconstrained man-made objects in unconstrained subsea videos. Classification is based on contours, which are reasonably stable features in underwater imagery. First, the system determines automatically an optimal scale for contour extraction by optimising a quality metric. Second, a two-feature Bayesian classifier determines whether the image conta...

| This paper proposes a robust feature tracker based on an eecient outlier rejection scheme, suitable for feature tracking in subsea video sequences. We extend the Shi-Tomasi-Kanade scheme by introducing a technique for rejecting spurious features. We employ a simple and ee-cient outlier rejection rule, called X84, and prove that its theoretical assumptions are satissed in the feature tracking ...

This paper presents the design and performance evaluation of communication and video system for a multi-legged subsea robot which can work in shallow and strong tidal current and high turbidity environment by crawling sea floor. The design keys are hierarchical network structure based on Gigabit Ethernet and full digital video transmission. Especially, the digital video transmission can minimiz...

In both the industrial and scientific fields, need for very high-resolution cartographic data is constantly increasing. With aging of offshore subsea assets, it important to plan maintain longevity structures, equipment, systems. Inspection, maintenance, repair (IMR) structures are key components an overall integrity management system that aims reduce risk failure extend life installations. The...