He held an RCUK Academic Fellowship between September 2009 and March 2012, and he was a Senior Lecturer between October 2012 and March 2013. Prior to his position at Swansea, he was a Research Associate in the Computer Vision Group, Department of Computer Science, University of Bristol, where he obtained his PhD in Computer Science and MSc in Advanced Computing (with commendation) in 2006 and 2002, respectively. He has strong research interests in video analysis, stereo systems, active contour models, level set methods, texture analysis, and medical image understanding. He leads a team of researchers at Swansea University in these areas, and has published just under 100 papers in computer vision and pattern recognition. He is associate editor of IET Computer Vision, and general chair of BMVC2015 and MIUA2012. He is a senior member of IEEE.