Prior to joining University at Albany, he was a Post-Doctoral Research Associate at the Howard Hughes Medical Institute and the Center for Neural Science of New York University, and an Assistant Researcher at Microsoft Research Asia. He graduated from Dartmouth College with Ph.D. degree in Computer Science in 2005, and from Beijing University with M.S. degree in Computer Science and B.S. degree in Information Science in 2000 and 1997, respectively. His main research interests include digital image/video forensics, computer vision, machine learning and computational neural science. He has authored one book, one book chapter and more than 60 refereed technical papers. He is the recipient of the IEEE Signal Processing Society Best Paper Award in 2011, and the National Science Foundation CAREER Award in 2010.