Bio-sketch James S. Duncan received the BSEE degree from Lafayette College, Easton, PA in 1973, the MS degree in Engineering from UCLA in 1975 and the Ph.D. degree in Electrical Engineering from the University of Southern California, in 1982. In 1973, he joined the staff of Hughes Aircraft Company, Electro-Optical and Data Systems Group, and participated in research and development projects related to signal and image processing for forward looking infrared (FLIR) imaging systems until 1983. During this time, he held Hughes' Masters, Engineer and Doctoral Fellowships. In 1983, he joined the faculty of Yale University, New Haven, CT., where he currently is a Professor of Diagnostic Radiology and Electrical Engineering, is the Director of the Image Processing and Analysis Group within Diagnostic Radiology and is the Director of Undergraduate Studies for the Program in Biomedical Engineering. His research and teaching efforts have been in the areas of image processing, computer vision and medical imaging. His current specific research interests include the segmentation of deformable structure, the characterization of nonrigid object motion/deformation using geometrical and physical models, and the integration of processing modules in vision systems, all with a special interest in using these approaches for medical image analysis. Dr. Duncan is a member of Eta Kappa Nu and Sigma Xi, is on the editorial board of the Journal of Mathematical Imaging and Vision, and is currently an Associate Editor for the IEEE Transactions on Medical Imaging and a co- Editor of the journal Medical Image Analysis. In June, 1997, he chaired the international conference on Information Processing in Medical Imaging (IPMI), held in Poultney, Vermont.