Stan Z. Li (IEEE Fellow) received the B.Eng. degree from Hunan University, China, the M.Eng. degree from the National University of Defense Technology, China, and the Ph.D. degree from Surrey University, U.K. He was an Associate Professor with Nanyang Technological University, Singapore. He was a Professor and the Director of the Center for Biometrics and Security Research, Institute of Automation, Chinese Academy of Sciences, and was with Microsoft Research Asia, as a Researcher from 2000 to 2004. He is currently a Chair Professor with Westlake University. His research interests include pattern recognition and machine learning, image and vision processing, face recognition, biometrics, and intelligent video surveillance. He has published more than 200 papers in international journals and conferences, and authored and edited eight books. He was an Associate Editor of the IEEE TRANSACTIONS ON PATTERN ANALYSIS AND MACHINE INTELLIGENCE and is acting as the Editor-in-Chief for the Encyclopedia of Biometrics. He was elevated to IEEE Fellow for his contributions to the fields of face recognition, pattern recognition, and computer vision. 

Sébastien Marcela is a senior researcher at the Idiap research institute in Switzerland where he leads the Biometrics Security and Privacy group ( https://www.idiap.ch/bsp ). He conducts research on multi-modal biometrics (face, speaker, vein, ...), attack detection and privacy preservation. He is also Professor at the Université de Lausanne (UNIL) with the School of Criminal Justice and lecturer at the Ecole Polytechnique Fédérale de Lausanne (EPFL). He is Associate Editor of IEEE Transactions on Biometrics, Behavior, and Identity Science (TBIOM). He is the lead Editor of the Springer Handbook of Biometric Anti-Spoofing (Editions 1 and 2). He was the coordinator of European research projects including MOBIO, TABULA RASA or BEAT and involved in many international projects. He is also the Director of the Swiss Center for Biometrics Research and Testing conducting certifications and cooperative research.

Guoying Zhao (IEEE Senior Member)  received the Ph.D. degree in computer science from the Chinese Academy of Sciences in 2005. She is currently an Academy Professor and full Professor (tenured in 2017) with University of Oulu. She is IAPR Fellow and AAIA Fellow. She has authored or co-authored more than 260 papers in journals and conferences with 16600+ citations in Google Scholar and h-index 60. She is a co-program chair for ACM International Conference on Multimodal Interaction (ICMI 2021), was co-publicity chair for FG2018, and has served as area chairs for several conferences and is associate editor for Pattern Recognition, IEEE Transactions on Circuits and Systems for Video Technology, and Image and Vision Computing Journals. Her current research interests include image and video descriptors, facial-expression and micro-expression recognition, emotional gesture analysis, affective computing, and biometrics. Her research has been reported by Finnish TV programs, newspapers and MIT Technology Review.