Mark Liao received his Ph.D degree in electrical engineering from Northwestern University in 1990. In July 1991, he joined the Institute of Information Science, Academia Sinica, Taiwan and currently, is a Distinguished Research Fellow. He has worked in the fields of multimedia signal processing, image processing, computer vision, pattern recognition, video forensics, and multimedia protection for more than 30 years.  During 2009-2011, he was the Division Chair of the computer science and information engineering division II, National Science Council of Taiwan. He is jointly appointed as a Professor of the Department of Electrical Engineering and Computer Science of National Cheng Kung University. During 2009-2012, he was jointly appointed as the Multimedia Information Chair Professor of National Chung Hsing University. Since August 2010, he has been appointed as an Adjunct Chair Professor of Chung Yuan Christian University.  From August 2014 to July 2016, he was appointed as an Honorary Chair Professor of National Sun Yat-sen University.  From November 2016 to November 2019, he was appointed as a Chair Professor of National Chiao-Tung University.  He received the Young Investigators'' Award from Academia Sinica in 1998; the Distinguished Research Award from the National Science Council of Taiwan in 2003, 2010 and 2013; the National Invention Award of Taiwan in 2004; the Distinguished Scholar Research Project Award from National Science Council of Taiwan in 2008; and the Academia Sinica Investigator Award in 2010.  He received the TECO award from the TECO foundation in 2016, and the 64th Academic Award from the Ministry of Education in 2020.  

               His professional activities include:  Co-Chair, 2004 International Conference on Multimedia and Exposition (ICME); Technical Co-chair, 2007 ICME; General Co-Chair, 17th International Conference on Multimedia Modeling; President, Image Processing and Pattern Recognition Society of Taiwan (2006-08); Editorial Board Member, IEEE Signal Processing Magazine (2010-13); Associate Editor, IEEE Transactions on Image Processing (2009-13), IEEE Transactions on Information Forensics and Security (2009-12), IEEE Transactions on Multimedia (1998-2001), and ACM Computing Surveys (2018-2021).  Since 2021, he has been a Senior Associate Editor of ACM Computing Surveys.  He has been a Fellow of the IEEE since 2013 for contributions to image and video forensics and security.