02/2007-present, Assoc Professor, Division of Computer Communications, School of Computer Engineering, Nanyang Technological University, Singapore

07/2001-02/2007, Project Leader, Video Quality Metrics; Lab Head, Visual Processing; Acting Dept. Manager, Media Processing, Institute for Infocomm Research, Singapore

01/1996-07/2001, Project Leader, Digital Media; Business Development Leader, System-on-Chip Dept., Institute of Microelectronics (IME), Singapore

05/1993-12/1995, Research Scientist, Dept. of Electrical Engineering, National University of Singapore

06/1992-05/1993, Research Officer, School of Electrical Engineering, Bath University, UK

08/1986-09/1988, Lecturer, Dept. of Computer Science & Infomation Engineering, Shantou University, China

07/1985-08/1986, Assistant Lecturer, Dept. of Electronics, Zhongshan University, China

01/1989-05/1992, Teaching Assistant, Dept. of Electrical Eng., King's College, University of London, UK