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Rui L. Pedroso de Lima, Floris C. Boogaard and Rutger E. de Graaf-van Dinther
With climate change and urban development, water systems are changing faster than ever. Currently, the ecological status of water systems is still judged based on single point measurements, without taking into account the spatial and temporal variability...
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Ioannis Polymenis, Maryam Haroutunian, Rose Norman and David Trodden
Underwater Vehicles have become more sophisticated, driven by the off-shore sector and the scientific community?s rapid advancements in underwater operations. Notably, many underwater tasks, including the assessment of subsea infrastructure, are performe...
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Franck Schoefs, Michael O?Byrne, Vikram Pakrashi, Bidisha Ghosh, Mestapha Oumouni, Thomas Soulard and Marine Reynaud
Hard marine growth is an important process that affects the design and maintenance of floating offshore wind turbines. A key parameter of hard biofouling is roughness since it considerably changes the level of drag forces. Assessment of roughness from on...
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Alessandro Ridolfi, Nicola Secciani, Mascha Stroobant, Matteo Franchi, Leonardo Zacchini, Riccardo Costanzi, Giovanni Peralta and Luigi Enrico Cipriani
Coastal zones are subjected to a wide range of phenomena acting on very different temporal and spatial scales: from decades to days and from hundreds of kilometers to tens of meters. Planning the management of such areas, thus, requires an accurate and u...
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Michael O?Byrne, Bidisha Ghosh, Franck Schoefs and Vikram Pakrashi
This paper investigates the role that virtual environments can play in assisting engineers and divers when performing subsea inspections. We outline the current state of research and technology that is relevant to the development of effective virtual env...
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Isaac Segovia Ramírez, Pedro José Bernalte Sánchez, Mayorkinos Papaelias and Fausto Pedro García Márquez
Submarine inspections and surveys require underwater vehicles to operate in deep waters efficiently, safely and reliably. Autonomous Underwater Vehicles employing advanced navigation and control systems present several advantages. Robust control algorith...
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Maricruz Fun Sang Cepeda, Marcos de Souza Freitas Machado, Fabrício Hudson Sousa Barbosa, Douglas Santana Souza Moreira, Maria José Legaz Almansa, Marcelo Igor Lourenço de Souza and Jean-David Caprace
Operators of offshore production units (OPUs) employ risk-based assessment (RBA) techniques in order to minimise inspection expenses while maintaining risks at an acceptable level. However, when human divers and workers are involved in inspections conduc...
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Yue Li, Xueting Zhang and Zhangyi Shen
Due to the strain on land resources, marine energy development is expanding, in which the submarine cable occupies an important position. Therefore, periodic inspections of submarine cables are required. Submarine cable inspection is typically performed ...
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Kexin Li, Jun Wang and Dawei Qi
A number of intelligent warning techniques have been implemented for detecting underwater infrastructure diagnosis to partially replace human-conducted on-site inspections. However, the extensively varying real-world situation (e.g., the adverse environm...
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Matej Fabijanic, Nadir Kapetanovic and Nikola Mi?kovic
The process of fish cage inspections, which is a necessary maintenance task at any fish farm, be it small-scale or industrial, is a task that has the potential to be fully automated. Replacing trained divers who perform regular inspections with autonomou...
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Ana Rita Gaspar and Aníbal Matos
Some structures in the harbour environment need to be inspected regularly. However, these scenarios present a major challenge for the accurate estimation of a vehicle?s position and subsequent recognition of similar images. In these scenarios, visibility...
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