My research interests cover a wide range of topics in computer graphics and computer vision. In computer graphics, my interests include fluid and character animation, environment matting, hardware accelerated graphics, motion editing, physics-based modelling, texture analysis and synthesis, and static and dynamic image-based modeling and rendering. Topics in computer vision include light source estimation, motion estimation, human motion analysis, camera calibration, 3D reconstruction, stereo and multiview stereo, underwater imaging, and medical imaging, in particular in developing biomarkers for ALS. I am a senior member of the IEEE and serve on the Editorial Board of the journal Pattern Recognition. I have published over 160 technical papers in international journals and conference proceedings, co-edited one book and served as a guest editor of an international journal. In addition, I have served as reviewer to numerous international journals, and as committee member to many conferences, review panels, and goverment agencies.