Dr. Nicholas Vretos obtaiend the degree of BSc in Computer Science from the University Pierre et Marie Currie (Paris VI) in 2002 and his Ph.D. from the Aristotle University of Thessaloniki in 2012. During elaboration of his thesis, he taught as assistant and worked as a research assistant in Artificial Intelligence and Information Analysis Laboratory. He has worked in 10 European projects as Technical Manager/ WP Leader/researcher. He has published more than 40 articles in scientific journals and conference proceedings and a book chapter. He is a member of the IEEE and has committed as a reviewer for several journals and conferences in the field of image and video processing. His main interests are in image and video processing, semantic analysis, neural networks and 3-D data processing.