Nikitas M. Sgouros
Department of Digital Sytems, University of Piraeus, Greece, (sgouros@unipi.gr)
Ryohei Nakatsu
Interactive and Digital Media Institute, National University of Singapore, Singapore, (elenr@nus.edu.sg)
Matthias Rauterberg
Industrial Design Department, Technical University of Eindhoven, The Netherlands, (G.W.M.Rauterberg@tue.nl)
