OOI Wei Tsang

Associate Professor
Ph.D. (Computer Science, Cornell University, 2001)
B.Sc. (Computer & Information Sciences, National University of Singapore, 1996)
651 64463


Research Areas

  • Media

Research Interests

  • Interactive Media
  • Computer Networking
  • Distributed Systems
  • Multimedia Middleware and Applications
  • 3D Streaming
  • Interactive Video Streaming
  • Networked Virtual Environments
  • Multimedia Systems


Wei Tsang’s received his B. Sc. (Hon.) degree from the Department of Information Systems and Computer Science (now School of Computing), NUS in 1996, and his Ph. D. in Computer Science from Cornell University, Ithaca, NY in 2001. He spent a year as postdoc at Berkeley Multimedia Research Center in U.C. Berkeley after his Ph. D. before returning as a faculty member to NUS. Wei Tsang’s research interests fall under the general area of interactive and networked multimedia applications. His current research focuses on zoomable video streaming, networked virtual environments, and cloud gaming systems. He is also keen in building multimedia systems that contributes towards better wellness and healthcare for all.

Current Projects

  • Zoomable Video Streaming
  • Cloud Gaming
  • Networked Virtual Environment
  • Medical Adherence Systems

Selected Publications

  • Minhui Zhu, Géraldine Morin, Vincent Charvillat, Wei Tsang Ooi:
    Sprite tree: an efficient image-based representation for networked virtual environments. The Visual Computer33(11): 1385-1402 (2017)

  • Praveen Kumar Yadav, Arash Shafiei, Wei Tsang Ooi:
    QUETRA: A Queuing Theory Approach to DASH Rate Adaptation. ACM Multimedia 2017: 1130-1138

  • Hui Wang, Wei Tsang Ooi, Mun Choon Chan:
    JurCast: Joint user and rate allocation for video multicast over multiple APs.INFOCOM 2016: 1-9

  • Thomas Forgione, Axel Carlier, Géraldine Morin, Wei Tsang Ooi, Vincent Charvillat:
    Impact of 3D bookmarks on navigation and streaming in a networked virtual environment. MMSys 2016: 9:1-9:10

  • Shanghong Zhao, Wei Tsang Ooi, Axel Carlier, Géraldine Morin, Vincent Charvillat:
    Bandwidth adaptation for 3D mesh preview streaming. TOMCCAP 10(1s): 13:1-13:20 (2014)

  • Zhen Wei Zhao, Sameer Samarth, Wei Tsang Ooi:
    Modeling the effect of user interactions on mesh-based P2P VoD streaming systems. TOMCCAP 9(2): 13:1-13:22 (2013)

  • Mukesh Kumar Saini, Raghudeep Gadde, Shuicheng Yan, Wei Tsang Ooi:
    MoViMash: online mobile video mashup. ACM Multimedia 2012: 139-148

  • Ngo Quang Minh Khiem, Guntur Ravindra, Axel Carlier, Wei Tsang Ooi:
    Supporting zoomable video streams with dynamic region-of-interest cropping. MMSys 2010: 259-270

Awards & Honours

  • School of Computing Teaching Excellence Award, 2015, 2013, 2012, 2008, 2006
  • National University of Singapore Annual Teaching Excellence Award 2008
  • Best Demo, ACM Multimedia 2013
  • ACM TOMCCAP Nicolas D. Georganas Best Paper Award 2011
  • Best Paper, ACM Multimedia 2008

Teaching (2021/2022)

  • CS6281: Topics in Computer Science: Immersive Videos
  • CS1010: Programming Methodology
  • CS2030S: Programming Methodology II
  • CS1010 Programming Methodology