Xukun Shen received the B.S., M.S., and Ph.D. degrees in computer science from Beihang University, Beijing, China, in 1987, 1994, and 2007 respectively. From 1998 to 2003, he was an Associate Professor with the Computer School, Beihang University, Beijing, China. He is currently a Professor with the State Key Laboratory of Virtual Reality Technology and Systems, Beihang University, Beijing, China. His main research interests are computer graphics and computer vision.