Dr. Nuno Gracias received the MSc and Ph.D. degrees in Electrical Engineering (Control and Robotics) in 1998 and 2003 from the Technical University of Lisbon, Portugal. From 2004 to 2006 he was a post-doctorate fellow at the University of Miami. Since 2006 he has been a member of the Computer Vision and Robotics Group (ViCOROB) of the University of Girona. His research interests span the areas of underwater optical mapping, and navigation and guidance of autonomous underwater robots, image processing and classification. Dr. Gracias has authored more than 30 articles in peer-review journals and more than 45 in scientific conferences, and co-supervised 2 PhD and 6 MSc theses. He is adjunct faculty at the department of Marine Geology and Geophysics of the University of Miami, and member of the editorial board of the Journal of Intelligent and Robotic Systems.