He is part of the Imaging Science and Information Systems (ISIS) Center and the principal investigator for an Army-funded project on technology improvements in minimally invasive procedures. His research interests are in image-guided interventions, medical robotics, and 3-D visualization. Dr. Cleary received the Ph.D. degree in Mechanical Engineering from the University of Texas, Austin, in 1990. He was an NSF Postdoctoral Researcher at the Mechanical Engineering Laboratory in Tsukuba, Japan. He worked in the robotics field at NASA Goddard Space Flight Center and for a Department of Defense contractor before joining Georgetown in 1996.