Affiliation: | (1) Shape Modeling Laboratory, The University of Aizu, Tsuruga, Ikki-Machi, Aizu-Wakamatsu City, Fukushima, 965 Japan, JP;(2) Department of Computer Science, University of Warwick, Coventry, CV4 7AL, UK, GB;(3) School of Applied Science, Division of Software Systems, Nanyang Technological University, Nanyang Avenue, Singapore 2263, SG |