I was a research fellow at City University, developing a prototype system for the Home Office to detect and classify intruders in image sequences. I worked on the Alvey project "Model-Based Interpretation of Radiological Images" at Guy's Hospital, London before becoming a lecturer at the Department of Computer Science, Curtin University of Technology, Perth, Australia. I moved to Italy to work at the Institute for Remote Sensing Applications at the Joint Research Centre. followed by a return to the UK, becoming lecturer at the Department of Information Systems and Computing, Brunel University, London, UK. At the beginning of 2000 I moved to the School of Computer Science & Informatics, Cardiff University.