Cheng Wei
School of Computing, National University of Singapore
Multimedia Information Lab 3, AS6 05-22
Profile
Ph.D. student in School of Computing, National Univerisity of Singaore from July 2005. He obtained Bachelor degree from Tongji Univerisity, Shanghai, China and Master Degree from Fudan University, Shanghai, China. His research area is multimedia system, espacially in 3D streaming, and his supervisor is Ooi Wei Tsang.
Publication
Published Papers
- Wei Cheng, Wei Tsang Ooi;
''Receiver-Driven View-Dependent Streaming of Progressive Mesh'';
in proceeding of NOSSDAV 2008, Braunschweig, Germany, 2008.
[Slides]
- Wei Cheng, Wei Tsang Ooi, Sebastien Mondet, Romulus Grigoras, and Geraldine Morin;
''An Analytical Model for Progressive Mesh Streaming'';
in proceeding of ACM Multimedia 2007, Augsburg, Germany, 2007.
[Slides], More Details in the project page.
Accepted Papers
- Wei Cheng;
Streaming of 3D Progressive Meshes (Doctoral Symposium Abstract);
to be appear in Proceeding of ACM Multimedia 2008, Vancouver, BC, Canada. - Sebastien Mondet, Wei Cheng, Geraldine Morin, Romulus Grigoras, Frederic Boudon, and Wei Tsang Ooi;
Streaming of Plants in Distributed Virtual Environments;
to be appear in Proceeding of ACM Multimedia 2008, Vancouver, BC, Canada. - Hang Yu, Ee-Chien Chang, Wei Tsang Ooi, Mun Choon Chan, and Wei Cheng;
Integrated optimiza- tion of video server resource and streaming quality over best-effort network;
accepted by IEEE Transactions on Circuits and Systems for Video Technology.
Research
Our research lies in the area of 3D streaming, including the encoding, transmitting and decoding of the 3D data.
More and more 3D objects are digitized and transmitted over the Internet now. The transmission of 3D objects is used in many applications, such as digital museums and online games, but the limited bandwidth remains the bottleneck.
Progressive streaming of 3D objects can reduce the waiting time and provide a coarse preview. Although streaming of video and audio has been researched in depth, streaming of 3D objects remains a new and challenging area.
We try to begin the research about the integration of coding, packetization and transmission to find a comprehensive scheme of 3D streaming. We have already found the effect of dependency with an analytical model. Moreover, we have proposed a receive-driven protocol to support the view-dependent streaming of progressive meshes. Our protocol can significantly increase the scalability of the server. Currently, we are studing on how to apply this protocol on a P2P system to support large number of users simultanously view a progressive mesh without need to increase the number of servers.
Teaching
| Module Code | Module Name | Semester/Year | As | Feedback |
|---|---|---|---|---|
| CS2105 | Introduction to Computer Networks | 1, 2007/08 | Tutor | link |
| CS2105 | Introduction to Computer Networks | 1, 2008/09 | Tutor |
Others
Courses taken
| Module Code | Module Name | Semester/Year Taken | Lecturer |
|---|---|---|---|
| CS5240 | Theory and Practice of Multimedia | 1,2005/06 | Dr. Terence SIM |
| CS5248 | Systems Support for Continuous Media | 1,2005/06 | Dr. Ooi Wei Tsang |
| CS5272 | Embedded Software Design | 1, 2005/06 | A/P. Mitra, Tulika |
| CS5229 | Advanced Computer Networks | 2, 2005/06 | Dr. Chan Mun Choon |
| CS5237 | Computational Geometry and Applications | 1, 2006/07 | Dr. Cheng Holun, Alan |
| CS6281 | The Art of Research | 1, 2006/07 | A/P. Hsu, David |
| CS5234 | Combinational and Graph Algorithms | 2,2006/07 | A/P. Leong Hon Wai |
| CS6282 | Analytic Modeling of System Performance | 2,2006/07 | Prof. Tay Yong Chiang |
Contact
Email: chengwe2 AT comp DOT nus DOT edu DOT sg
Lab: Multimedia System Lab 3, AS6 05-22.
