On the morning of July 28, 2017, Dr. Xu Hui conducted his oral postdoctoral defense. The oral defense was held in the conference room B401. The oral defense committee consists of six members including Prof. Li Bing from Harbin Institute of Technology, Shenzhen, Prof. Liu Xueping from Graduate School at Shenzhen, Tsinghua University, Prof. Song Zhan from Laboratory for Intelligent Design and Machine Vision, Prof. Wu Jianhuang from the Lab of Medical Image and Digital Surgery, Prof. Fang Haitao as well as Dr. Xu's postdoctoral advisor Prof. He Kai from Center for Precision Engineering.