Gregory D. Hager is a Professor and Chair of Computer Science at Johns Hopkins University and the Deputy Director of the NSF Engineering Research Center for Computer Integrated Surgical Systems and Technology. His research interests include time-series analysis of image data, image-guided robotics, medical applications of image analysis and robotics, and human-computer interaction. He is the author of more than 220 peer-reviewed research articles and books in the area of robotics and computer vision. In 2006, he was elected a fellow of the IEEE for his contributions in Vision-Based Robotics. Professor Hager received his PhD from the University of Pennsylvania in 1988. He subsequently spent a year as a Fulbright Professor at the TU Karlsruhe and Fraunhofer IITB. He was then faculty at Yale University prior to joining Johns Hopkins in 1999.