Hiromasa Oku received the B.S. in Physics, 1998, and the M.Eng. and Dr.Eng. degrees in　Mathematical Engineering and Information Physics, in 2000, and 2003, respectively, from the　University of Tokyo, Japan. He had been a Research Associate, Assistant Professor and a　Lecturer at the University of Tokyo. Since 2014, he had been an Associate Professor at the Gunma University. Now he is a Professor. His current research interests include dynamic image control that is to provide adequate visual information to a human in a comprehensible and intelligible way by the control of optics, illuminations, and image processing.