Nobuhiko Mukai is a professor of Graduate School of Integrative Science and Engineering, Tokyo City University. He received his B.E., M.E., and Ph.D degrees from Osaka University in 1983, 1985, and 2001 respectively. He also received his M.E. from Cornell University in 1997. He started to work at Mitsubishi Electric Corporation and changed to work as an associate professor at Musashi Institute of Technology in 2002. He is currently a professor of Tokyo City University from 2007. His research interests are computer graphics and image processing.