He received the B.S. degree in Computer Science from Xidian University of Posts and Telecommunications, Xi'an, China, the M.E. degree in Pattern Recognition and Intelligent Systems from Huazhong University of Science and Technology, Wuhan, China, the Ph.D. degree in Pattern Recognition and Intelligent Systems from the Institute of Automation, Chinese Academy of Sciences, Beijing, China, in 1999, 2002 and 2010, respectively. His research interests include document image analysis, handwritten character recognition and scene text detection and recognition. He has published over 40 papers at international journals and conferences.