He received the PhD degree in computer science from City University of Hong Kong in 2008. From 2008 to 2010, he was a research fellow at the Chinese University of Hong Kong and City University of Hong Kong. He is now a full Professor at the School of Computer Science and Technology, College of Computing and Intelligence, Tianjin University, China. His major research interests are active robotic vision and visual intelligence, specifically including active camera relocalization and lighting recurrence, general Markov Random Fields modeling, energy minimization, active 3D scene perception, SLAM, video analysis, and generic pattern recognition. Recently, he focuses on solving preventive conservation problems of cultural heritages via computer vision and machine learning. He is the Associate Editor of Neurocomputing and Journal of Ambient Intelligence and Humanized Computing.