Dr. Yichen Wei is a Lead Researcher in computer vision group, Microsoft Research Asia. Before joining MSRA in 2006, he received Ph.D degree in Computer Science from Hong Kong University of Science and Technology, and BS degree in 2001 from Peking University. His research interest is in computer vision, specifically on 3D reconstruction, object detection, tracking and recognition. He has published dozens of papers on top conferences (CVPR, ICCV, ECCV, SIGGRAPH) and journals (PAMI, IJCV). His research work in Microsoft has contributed to various products, such as Kinect, Office and Windows.