1. Postdoctoral Fellow, Tsinghua University, Beijing, China
2. CentraleSupélec, Gif-sur-Yvette, France
3. Specially Appointed Professor, Juntendo University, Tokyo, Japan
4. Image Processing Research Team Leader, Center for Advanced Photonics RIKEN, Wako¯, Saitama, Japan
5. University of Manchester, Manchester, U.K.