He received his B.Sc. and Ph.D. degrees in 1986 and 1992 respectively. He joined as faculty at Warwick in 1998 having been a research scientist with the NHS and Kings Medical School, London and a Research Fellow at Harvard Medical School. His current research interests are in computer assisted medical diagnosis, anatomical object modelling and segmentation, people re-identification, and computer vision for intelligent vehicles. He has published around 80 refereed articles in image analysis, medical imaging, computer vision and machine learning. He was the co-chair of the British Machine Vision Conference, 2007 and Medical Image Understanding and Analysis, 2010. He was a co-founder of Warwick Warp Ltd., a university spin out company specializing in biometric technologies.