Kaichun Zhao received his B.S. degree in Computational Mathematics from the Department of Mathematics, Liaoning University in 1997. He received his M.S. and Ph.D. degrees in Mechanical Electronics from the School of Mechanical Engineering, Dalian University of Technology, in 2004 and 2009, respectively. From 2009 to 2011, he served as a postdoctoral assistant researcher in the Department of Precision Instruments at Tsinghua University. Since 2011, he has been working as an assistant researcher at the Institute of Precision Instruments at Tsinghua University. His research topics mainly include polarization navigation, polarization cameras, and visual odometry.