Affiliation: | (1) Department of Statistics and Actuarial Studies, University of Piraeus, Karaoli and Dimitriou 80, 18534 Piraeus, Greece;(2) Image, Video and Multimedia Laboratory, Department of Electrical and Computer Engineering, National Technical University of Athens, Zographou, 15773 Athens, Greece;(3) Intelligent, Robotics and Automation Laboratory, Department of Electrical and Computer Engineering, National Technical University of Athens, Zographou, 15773 Athens, Greece |