His research areas include multimedia computing, image processing, computer vision and pattern recognition. He has authored or coauthored more than 400 academic papers in prestigious international journals and top-level international conferences. According to Google Scholar, these papers have been cited 13000+ times, with H-index 55. He was supported by the National Science Fund for Distinguished Young Scholars of China in 2010, deserved the Special Government Allowance of the State Council in 2011 and the National Hundreds and Thousands of Talents Project of China in 2014. He is the Fellow of IEEE and CCF. He is the associate editor of IEEE Trans. on CSVT and Acta Automatica Sinica, and the reviewer of various international journals including IEEE Trans. on PAMI, IEEE Trans. on Image Processing, IEEE Trans. on Multimedia, etc. He has served as general chair, program chair, track chair and TPC member for various conferences, including ACM Multimedia, CVPR, ICCV, ICME, ICMR, PCM, BigMM, PSIVT, etc.