Yasuhiko Arai received the BS and MS degrees in mechanical engineering from Kansai University, Osaka, Japan, in 1977 and 1979, respectively. In 1988, he received Doctor of Engineering from Osaka University. He is currently a Professor of mechanical engineering at Kansai University. His current research interests include fringe analysis, 3D measurement using SEM and speckle interferometry, moiré fringes, super-resolution, and optical actuators.