Emmanouil Michail, Aristeidis Bozas, Dimitrios Stefanopoulos, Stavros Paspalakis, Georgios Orfanidis, Anastasia Moumtzidou, Ilias Gialampoukidis, Konstantinos Ioannidis, Stefanos Vrochidis, Ioannis Kompatsiaris, Centre of Research and Technology Hellas, Greece