Affiliation: | a Department of Electronics and Informatics, The University of Padua, Via Gradenigo 6a, I-35131, Padova, Italy b Institute of System Sciences and Bioengineering - LADSEB-CNR, Corso Stati Uniti 4, I-35127, Padova, Italy c Department of Precision Machinery Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113, Japan |