David Zhang graduated in Computer Science from Peking University. He received his MSc in 1982 and his PhD in 1985 in both Computer Science from the Harbin Institute of Technology (HIT), respectively. From 1986 to 1988 he was a Postdoctoral Fellow at Tsinghua University and then an Associate Professor at the Academia Sinica, Beijing. In 1994 he received his second PhD in Electrical and Computer Engineering from the University of Waterloo, Ontario, Canada. Currently, he is a Chair Professor at the Hong Kong Polytechnic University where he is the Founding Director of Biometrics Research Centre (UGC/CRC) supported by the Hong Kong SAR Government in 1998. He also serves as Visiting Chair Professor in Tsinghua University and HIT, and Adjunct Professor in Shanghai Jiao Tong University, Peking University, National University of Defense Technology and the University of Waterloo. He is the Founder and Editor-in-Chief, International Journal of Image and Graphics (IJIG); Book Editor, Springer International Series on Biometrics (KISB); Organizer, the first International Conference on Biometrics Authentication (ICBA); Associate Editor of more than ten international journals including IEEE Transactions and so on. So far, he has published over 20 monographs, 400 international journal papers and 40 patents from USA/Japan/HK/China. He has been continuously listed as a Highly Cited Researchers in Engineering by Clarivate Analytics (formerly known as Thomson Reuters) in 2014, 2015, 2016 and 2017, respectively. Professor Zhang is a Croucher Senior Research Fellow, Distinguished Speaker of the IEEE Computer Society, and a Fellow of both IEEE and IAPR. (https://www4.comp.polyu.edu.hk/~csdzhang/)

Dr. Ray Chak-Chung Cheung received the B.Eng.(Hons) and M.Phil. degrees in computer engineering and computer science & engineering from The Chinese University of Hong Kong (CUHK) in 1999 and 2001 respectively, and the DIC and Ph.D. degree in computing from Imperial College London (IC) in 2007. He joined the Department of Computer Science & Engineering at the Chinese University of Hong Kong (CUHK) in 2002 as an Instructor. Before that, he worked as a system administrator in a parallel cluster computing company, Cluster Technology Limited for one year. Two years later in 2004, he received theHong Kong Croucher Foundation Scholarship and moved to London where he spent three years for his Ph.D. study. He was with Stanford University and UCLA in the summer of 2005 and 2006 as a visiting scholar. After completing his Ph.D. study, he received the Hong Kong Croucher Foundation Fellowship and moved to Los Angeles, in the Electrical Engineering department at UCLA, where he spent two years with Image Communication Lab for continuing his research work. In 2008, he took a 6-month internship at a top IC design company in Hong Kong, Solomon-Systech Limited as a senior digital IC designer. In 2009, he visited the PALMS group in the Department of Electrical Engineering at Princeton University as a visiting research fellow before returning to Hong Kong. He is currently an Associate Professor in the Department of Electronic Engineering at City University of Hong Kong, and with Digital Systems Lab. His current research interests include cryptographic hardware designs and design exploration of System-on-Chip (SoC) designs and embedded system designs. He is the chairman of the IEEE Hong Kong Section CAS/COM Chapter, and executive committee member of the IEEE Hong Kong Section Computer Chapter. He is the author of over 100 journal papers and conference papers. (https://www.ee.cityu.edu.hk/~rcheung/About_Me.html)