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Pacific-Rim Conference on Multimedia (PCM)

September 16-18, 2015, Gwangju, Korea

Keynote Speakers


Prof. King N. Ngan (Chinese University of Hong Kong)

Title: Free-viewpoint Video Using RGBD Camera


With the advances in displaying techniques, three-dimensional television (3DTV) and free-viewpoint television (FTV) are fast becoming the new generation of digital media systems. The traditional television uses common 2D displays without a feeling of depth, and cannot freely change the viewpoint. This is far from the real-world experience. 3DTV can display 3D space with the depth perception, and FTV enables the free navigation of arbitrary viewpoint by providing different contents in accordance with the viewing angle. 3DTV and FTV render the virtual world closer to real-life experience. In this talk, I will first give a brief introduction of a simple free-viewpoint video communication system we have developed. Using RGBD camera, the system can deliver both 3D and FTV viewing experiences to the end user in real-time. Then I will present our current research works on two techniques that are essential to the improvement of the current free-viewpoint system in terms of depth enhancement and 3D head tracking. Consumer RGBD cameras are inexpensive, but the depth images they can provide are very noisy. Thus depth enhancement becomes an indispensible component in RGBD camera based FTV system. Another important component is the 3D head tracking. For FTV, we need to track the head position of the viewer in the 3D space, so that the system can display the corresponding view of the 3D scene accordingly.


King N. Ngan received the Ph.D. degree in Electrical Engineering from the Loughborough University in U.K.  He is currently a chair professor at the Department of Electronic Engineering, Chinese University of Hong Kong. He was previously a full professor at the Nanyang Technological University, Singapore, and the University of Western Australia, Australia. He has been appointed Chair Professor at the University of Electronic Science and Technology, Chengdu, China, under the National Thousand Talents Program since 2012. He holds honorary and visiting professorships of numerous universities in China, Australia and South East Asia. Prof. Ngan served as associate editor of IEEE Transactions on Circuits and Systems for Video Technology, Journal on Visual Communications and Image Representation, EURASIP Journal of Signal Processing: Image Communication, and Journal of Applied Signal Processing.  He chaired and co-chaired a number of prestigious international conferences on image and video processing including the 2010 IEEE International Conference on Image Processing, and served on the advisory and technical committees of numerous professional organizations.  He has published extensively including 3 authored books, 7 edited volumes, over 350 refereed technical papers, and edited 9 special issues in journals. In addition, he holds 15 patents in the areas of image/video coding and communications. Prof. Ngan is a Fellow of IEEE (U.S.A.), IET (U.K.), and IEAust (Australia), and an IEEE Distinguished Lecturer in 2006-2007.


Prof. Sanghoon Lee (Yonsei University)

Title: Visual Discomfort Analysis for 3D Contents


Unlike 2D contents, ocular adjustment to binocular depth can induce neurological symptoms such as visual discomfort and headache, as well as 3D distortions that cause quality of experience. Understanding these problems involves several intricate visual factors which only shall be probed by investigating reliable spatial and temporal features in 3D contents and using a reliable subjective testing methodology. In this talk, I will present underlying principles and statistical characteristics of 3D contents and visual saliency prediction based on the human visual system, physiology and neural activity. Moreover, I will introduce the related international standard activity named “IEEE P3333.1: Quality Assessment of Three Dimensional (3D) Displays, 3D Contents and 3D Devices based on Human Factors”.


Sanghoon Lee (M’05–SM’12) received the B.S. in E.E. from Yonsei University in 1989 and the M.S. in E.E. from Korea Advanced Institute of Science and Technology (KAIST) in 1991. From 1991 to 1996, he worked for Korea Telecom. He received his Ph.D. in E.E. from the University of Texas at Austin in 2000. From 1999 to 2002, he worked for Lucent Technologies on 3G wireless and multimedia networks. In March 2003, he joined the faculty of the Department of Electrical and Electronics Engineering, Yonsei University, Seoul, Korea, where he is a full professor. He was an Associate Editor of the IEEE Trans. Image Processing (2010-2014). He has been an Associate Editor of the IEEE Signal Processing Letters(2014-) and the Chair of the IEEE P3333.1 Quality Assessment Working Group (2011-). He served as the Technical Committee of the IEEE IVMSP (2014-), the Technical Program Co-chairs of International Conference on Information Networking (ICOIN) 2014, Global 3D Forum 2012, 2013, the General Chair of the 2013 IEEE IVMSP workshop, the Guest Editor of IEEE Trans. Image Processing 2013, and an Editor of the Journal of Communications and Networks (JCN) (2009-2015). He has received a 2012 special service award from IEEE Broadcast Technology Society and 2013 special service award from IEEE Signal Processing Society. His research interests include image/video quality assessments, medical image processing, cloud computing, wireless multimedia communications and wireless networks.