Roger Fulton is a principal nuclear medicine physicist in the Department of Medical Physics at Westmead Hospital, Sydney, and Conjoint Professor of Medical and Preclinical Imaging at the Brain and Mind Centre, University of Sydney. He leads a small team pursuing medical imaging research in both the clinical and basic research environments. Roger has been developing motion tracking and motion correction techniques for human PET, SPECT and preclinical PET brain imaging for over 20 years. His most recent contribution is a data-driven method to correct for rigid head motion in CT which is showing promise in clinical studies. This was developed in collaboration with the group of Prof. Johan Nuyts at KU Leuven in Belgium. Roger gained his PhD degree from the University of Technology, Sydney, in 2000, and has attracted about $10M in competitive research funding over his career.