Communication and Collaboration Systems
The Communication and Collaboration Systems (CCS) group applies our core expertise in signal processing and information coding to problems in media coding, storage, and delivery (Communication Systems) as well as in advanced teleconferencing and telepresence, audio and visual scene analysis, and collaboration platforms (Multimodal Collaboration).
The CCS group is managed by Phil Chou.
People
Projects
Communication Systems
- Content distribution using market mechanisms and utility maximization
- Peer-assisted streaming media on demand
- Delay reduction in multipoint VoIP conferences
- Anti-phishing technology based on password reuse
- Collaborative platform for developers
- Network coding over wireless networks
- Audio healer for error concealment and delay reduction in voice over IP
- Optimal Rate Control for glitch-free, low-delay streaming media
- Rate Distortion Optimized streaming media
- Hybrid FEC and Pseudo-ARQ for robust media multicast
- Multiple Description Coding for robust media multicast
- Cooperative Networking for peer-assisted (application level) multicast
- Practical Network Coding for high performance, low management multicast
- VMedia for browsing virtual environments over the Internet
- Embedded Audio, Video, and Image Coding for scalable audio distribution
- Progressive to Lossless coding using reversible transforms based on lifting
- Distributed Peer Streaming and Web Hosting in a peer-to-peer network
- Mutualcast for reliable simultaneous multicast to small groups
- Video content downloading
Multimodal Collaboration
- Automated Lecture Rooms (iCam)
- RingCam Meeting Recording System
- Real-time Room Conferencing Using RingCam
- Live Whiteboard Capture
- Audio Time-Scale Modification (Time Compression)
- Real-time Multi-Person Tracking
- Robust Microphone Array Sound Source Localization
- Speaker Tracking Using Particle Filter Sensor Fusion
- Virtual Director
- Low Bit-rate Talking head
- Human-Phone Discrimination for Multi-Party Conferencing
Recent Publications
- Shao Liu, Mung Chiang, Mathias Jourdain, and Jin Li, Congestion location detection: methodology, algorithm, and performance, in 17th IEEE International Workshop on Quality of Service, IEEE Communications Society, 12 July 2009
- Miroslav Ponec, Sudipta Sengupta, Minghua Chen, Jin Li, and Philip A. Chou, Multi-rate peer-to-peer video conferencing: A distributed approach using scalable coding, in 2009 IEEE International Conference on Multimedia and Expo, IEEE, 29 June 2009
- Ying-zong Huang, Sanjeev Mehrotra, and Jin Li, A hybrid FEC-ARQ protocol for low-delay lossless sequential data streaming, in 2009 IEEE International Conference on Multimedia and Expo, IEEE, 29 June 2009
- Yunnan Wu, Y. Charlie Hu, Jin Li, and Philip A. Chou, The Delay Region for P2P File Transfer, in 2009 IEEE International Symposium on Information Theory, IEEE, 28 June 2009
- Xiaogang Wang, Cha Zhang, and Zhengyou Zhang, Boosted Multi-Task Learning for Face Verification With Applications to Web Image and Video Search, in IEEE Computer Society Conference on Computer Vision and Pattern Recognition, Institute of Electrical and Electronics Engineers, Inc., 22 June 2009
- Sudipta Sengupta, Shao Liu, Minghua Chen, Mung Chiang, Jin Li, and Philip A. Chou, P2P Streaming Capacity, no. MSR-TR-2009-68, 1 June 2009
- Prasun Dewan, Puneet Agarwal, Gautam Shroff, and Rajesh Hegde, Distributed Side-by-Side Programming, in ICSE Workshop on Cooperative and Human Aspects on Software Engineering, 2009. CHASE '09. , IEEE, 18 May 2009
- Dinei Florencio and Cha Zhang, MULTIVIEW VIDEO COMPRESSION AND STREAMING BASED ON PREDICTED VIEWER POSITION, in ICASSP, IEEE, April 2009
- Y. Angela Wang, Cheng Huang, Jin Li, and Keith W. Ross, Queen – Estimating Packet Loss Rate between Arbitrary Internet Hosts, in The tenth Passive and Active Measurement conference, Springer Verlag, 1 April 2009
- Vijay Vasudevan, Sudipta Sengupta, and Jin Li, A First Look at Media Conferencing Traffic in the Global Enterprise, in Passive and Active Measurement Conference (PAM'2009), Springer Verlag, 1 April 2009
- Srenivas Varadarajan, Lina J. Karam, and Dinei Florencio, BACKGROUND RECOVERY FROM VIDEO SEQUENCES USING MOTION PARAMETERS, in ICASSP, IEEE, April 2009
- Zijian Zhao, Yuncai Liu, and Zhengyou Zhang, Camera Calibration With Three Noncollinear Points Under Special Motions, in IEEE Transactions on Image Processing, vol. 17, no. 12, pp. 2393-2402, Institute of Electrical and Electronics Engineers, Inc., December 2008
- Cha Zhang, Pei Yin, Yong Rui, Ross Cutler, Paul Viola, and Xinding Sun, Boosting-Based Multimodal Speaker Detection for Distributed Meeting Videos, in IEEE Trans. on Multimedia, IEEE, December 2008
- Sasa Junuzovic, Rajesh Hegde, Zhengyou Zhang, Philip A. Chou, Zicheng Liu, and Cha Zhang, Requirements and recommendations for an enhanced meeting viewing experience, in Proceeding of the 16th ACM international conference on Multimedia , Association for Computing Machinery, Inc., 29 October 2008
- Cha Zhang, Zicheng Liu, Zhengyou Zhang, and Qi Zhao, Semantic Saliency Driven Camera Control for Personal Remote Collaboration, in IEEE Signal Processing Society 2008 International Workshop on Multimedia Signal Processing, IEEE, 8 October 2008
- Jiajun Wang, Cheng Huang, and Jin Li, On ISP-Friendly Rate Allocation for Peer-Assisted VoD, in ACM Multimedia, Association for Computing Machinery, Inc., October 2008
- Rajesh Hegde and Prasun Dewan, Connecting Development Environments to Support Ad-Hoc Collaboration, in 23rd IEEE/ACM International Conference on Automated Software Engineering, Institute of Electrical and Electronics Engineers, Inc., 18 September 2008
- Cormac Herley and Dinei Florencio, Protecting Financial Institutions from Brute-Force Attacks, in Proc. 23rd International Information Security Conference (SEC 2008), Springer-Verlag, September 2008
- Cha Zhang, Raffay Hamid, and Zhengyou Zhang, Taylor Expansion Based Classifier Adaptation: Application to Person Detection, in IEEE Computer Society Conference on Computer Vision and Pattern Recognition , IEEE, 24 June 2008
- Cha Zhang, Dinei Florencio, and Zhengyou Zhang, Maximum Likelihood Sound Source Localization and Beamforming for Directional Microphone Arrays in Distributed Meetings, in IEEE Transactions on Multimedia, IEEE, April 2008
- Cha Zhang, Dinei Florencio, and Zhengyou Zhang, Why Does PHAT Work Well in Low Noise, Reverberative Environments?, in IEEE International Conference on Acoustics, Speech and Signal Processing, IEEE, 30 March 2008
- Dinei Florencio and Cormac Herley, Evaluating a Trial Deployment of Password Re-Use for Phishing Prevention, in Proc. Anti-phishing Working Group 2nd Annual eCrime Researchers Summit , Association for Computing Machinery, Inc., October 2007
- Prasun Dewan and Rajesh Hegde, Semi-Synchronous Conflict Detection and Resolution in Asynchronous Software Development, in Proceedings of the 2007 Tenth European Conference on Computer-Supported Cooperative Work, Springer Verlag, 25 September 2007
- Cheng Huang, Jin Li, and Keith W. Ross, Can Internet Video-on-Demand be Profitable?, in ACM SIGCOMM, Association for Computing Machinery, Inc., August 2007
- Dinei Florencio, Cormac Herley, and Baris Coskun, Do Strong Web Passwords Accomplish Anything?, in Proc. Second USENIX Workshop on Hot Topics in Security (HotSec '07), USENIX, August 2007
- Dinei Florencio and Cormac Herley, A Large-Scale Study of Web Password Habits, in Proceedings of the 16th international conference on the World Wide Web , Association for Computing Machinery, Inc., May 2007
- Cheng Huang, Minghua Chen, and Jin Li, Pyramid Codes: Flexible Schemes to Trade Space for Access Efficiency in Reliable Data Storage Systems, no. MSR-TR-2007-25, March 2007
- Paul Viola, John C. Platt, and Cha Zhang, Multiple Instance Boosting for Object Detection, in Advances in Neural Information Processing Systems 18, January 2007
- Yong Rui, Eric Rudolph, Li-wei He, Rico Malvar, Michael Cohen, and Ivan Tashev, PING: A Group-to-Individual Distributed Meeting System, in Proceedings of International Conference Multimedia and Expo, Institute of Electrical and Electronics Engineers, Inc., Toronto, Canada, July 2006
- A. Subramanya, Z. Zhang, Z. Liu, Jasha Droppo, and Alex Acero, A Graphical Model for Multi-Sensory Speech Processing in Air-and-Bone Conductive Microphones, in Proc. of the Interspeech Conference, International Speech Communication Association, Lisbon, Portugal, September 2005
- Z. Liu, A. Subramanya, Z. Zhang, Jasha Droppo, and Alex Acero, Leakage Model and Teeth Clack Removal for Air- and Bone-Conductive Integrated Microphones, in Proc. ICASSP, Institute of Electrical and Electronics Engineers, Inc., Philadelphia, March 2005
- Zicheng Liu, Zhengyou Zhang, Alex Acero, Jasha Droppo, and Xuedong Huang, Direct Filtering for Air- and Bone-Conductive Microphones, in Proc. IEEE Workshop on Automatic Speech Recognition and Understanding, Institute of Electrical and Electronics Engineers, Inc., Siena, Italy, September 2004
- Y. Zheng, Z. Liu, Z. Zhang, M. Sinclair, Jasha Droppo, Li Deng, Xuedong Huang, and Alex Acero, Air and Bone-Conductive Integrated Microphones for Robust Speech Detection and Enhancement, in Proc. IEEE Workshop on Automatic Speech Recognition and Understanding, Institute of Electrical and Electronics Engineers, Inc., U.S. Virgin Islands, December 2003
- Ross Cutler, Yong Rui, Anoop Gupta, JJ Cadiz, Ivan Tashev, Li-wei He, Alex Colburn, Zhengyou Zhang, Zicheng Liu, and Steve Silverberg, Distributed Meetings: A Meeting Capture and Broadcasting System, in Proceedings of ACM Multimedia 2002, Nice, France, December 2002
Visitors
Postdocs
- Manish Jain (Georgia Tech), 2008-9
- Minguan Cheng (Berkeley, now at CUHK), 2006-7
Visiting Researchers
- Ying-Li Tian (CCNY), 2009
- Ruigang Yang (Kentucky), 2008
- Mingyan Liu (Michigan), 2008
- Wangqing Li (Wolongong), 2008
- Wayne Stark (Michigan), 2006
- Baochun Li (Toronto), 2006
- Geoffrey Chan (Queen's), 2006
- Max Costa (Unicamp), 2006
Consulting Researchers
- David Du (Minnesota), 2009
- Sasa Junuzovic (UNC), 2009
- Ramani Duraiswami (Maryland), 2009
- Adam O’Donovan (Maryland), 2009
- Ruigang Yang (Kentucky), 2009
- Aleksandar Kuzmanovic (Northwestern), 2009
- Keith Ross (NYU/Poly), 2009
- Andrew Jiang (TAMU), 2009
- Baochun Li (Toronto), 2009
- Minghua Chen (CUHK), 2009
- Mung Chiang (Princeton), 2009
- Gary Chan (HKUST), 2008
- Charlie Hu (Purdue), 2008
- John Weng (Michigan State), 2008
- Yi Cui (Vanderbilt), 2008
- Ming-Ting Sun (Washington), 2008
- Reza Rejaie (Oregon), 2008
- Mung Chiang (Princeton), 2008
- Baochun Li (Toronto), 2007
- Lihao Xu (Wayne State), 2007
- Kannan Ramchandran (Berkeley), 2007
- Keith Ross (Polytechnic), 2007
- Aaron Bobick (Georgia Tech), 2006
- Keith Ross (Polytechnic), 2006
- Prasun Dewan (North Carolina), 2006
- Michelle Effros (Caltech), 2004
- Kannan Ramchandran (Berkeley), 2005
Contractors
- Minxuan Sun (Georgia Tech), 2008
- Qing Zhang (Kentucky), 2008
- Shao Liu (Princeton), 2007-8
Gratis Visitors
- Greg Wornell (MIT), 2009
- Giorgio Metta (Genoa), 2009
- Srinivas Shakkottai (TAMU), 2009
- Devavrat Shah (MIT), 2009
- Mihaela van der Schaar (UCLA), 2009
- Yi Su (UCLA), 2009
- Fangwen Fu (UCLA), 2009
- Suman Banerjee (Wisconsin), 2009
- Sundeep Rangan (Qualcomm Flarion), 2009
- John Tsotsos (York), 2009
- Kai Li (Princeton), 2008
- Hauke Kruger (Aachen), 2008
- Emanuel Habets (Technion), 2008
- Hiroshi Saruwatari (Nara), 2008
- Qi Tian (UT San Antonio), 2008
- Pascal Fua (EPFL), 2008
- Erran Li (Bell Labs), 2008
- Ashish Khisti (MIT), 2008
- Carlo Busso (USC), 2008
- Zhihong Zeng (UIUC), 2008
- Marina L. Gavrilova (Univ. of Calgary), 2007
- Biao Chen (Syracuse Univ) 2007
- Reza Rejaie (Oregon), 2007
- Juyang (John) Weng (Michigan State), 2007
- Alessandro Abate (Berkeley), 2007
- Thinh Nguyen (Oregon State), 2007
- Ruigang Yang (Kentucky), 2007
- Hai Tao (UC Santa Cruz), 2007
- Steve Levinson (UIUC), 2006
- Xinghua Zhuang (Missouri), 2006
- Demetri Terzopoulos (UCLA), 2006
- Cordelia Schmid (INRIA), 2006
- Aude Oliva (MIT), 2006
- Michael Mitzenmacher (Harvard), 2006
- Joerg Kliewer (Kiel), 2006
- Mohamed Najim (Bordeaux), 2005
- Jay Kuo (USC), 2005
- Raymond Yeung (CUHK), 2004
2010 Interns
- Hao Tang (UIUC)
2009 Interns
- Anish Chandak (UNC)
- Biplob Debnath (Minnesota)
- Chao Zhang (NYU/Poly)
- Chris Brooks (Saskatchewan)
- David Gallup (UNC)
- Demba Ba (MIT)
- Flavio Ribiero (USP)
- Lingliang Cao (UIUC)
- Myung-Suk Song (Yonsei)
- Qing Zhang (Kentucky)
- Yao Zhao (Northwestern)
- Ye Wang (Yale)
2008 Interns
- Amit Mondal (Northwestern)
- Angela Wang (Poly/NYU)
- Ashish Vulimiri (IIT Kharagpur)
- Aswin Sankaranarayanan (Maryland)
- Engin Tola (EPFL)
- Matt Luciw (Michigan State)
- Mehrez Souden (Université du Quebec)
- Sasa Junuzovic (UNC Chapel Hill)
- Junsong Yuan (Northwestern)
- Sayandeep Sen (Wisconsin)
- SeongHun Lee (KAIST)
- Vijay Vasudevon (CMU)
- Xiaogang Wang (MIT)
- Ying-zong Huang (MIT)
- Zhaozheng Yin (Penn State)
2007 Interns
- Aayush Sharma (IIT Roorkee)
- Alex Dimakis (Berkeley)
- Amitanand Aiyer (UT Austin)
- Fahad Dogar (CMU)
- Jacek Dmochowski (Université du Québec)
- June Wang (Berkeley)
- Liao Miao (Kentucky)
- Mingxuan Sun (Georgia Tech)
- Miroslav Ponec (Polytechnic)
- Qi Zhao (UC Santa Cruz)
- Raffay Hamid (Georgia Tech)
- Sasa Junuzovic (UNC Chapel Hill)
- Yuan Yuan (Maryland)
2006 Interns
- Amar Subramanian (UW)
- Demba Ba (MIT)
- Jian Liang (Polytechnic)
- Junlin Li (Georgia Tech)
- Nick Harvey (MIT)
- Rongmei Zhang (Purdue)
- Sang Min Oh (Georgia Tech)
- Sasa Junuzovic (UNC Chapel Hill)
- Saumitra Das (Purdue)
- Yang Wang (SUNY Stony Brook)
- Yuan Yuan (Maryland)
2005 Interns
- Alberto Lopez Toledo (Columbia)
- Arlindo Flávio da Conceição (São Paulo)
- Bin Yu (UIUC)
- Dinesh Garg (IIS Bangalore)
- Jue Wang (UW)
- Pei Yin (Georgia Tech)
- Qiang Huang (Princeton)
- Sasa Junuzovic (UNC Chapel Hill)
- Shobit Saxena (IIT Delhi)
- Ting Yu (Northwestern)
- Jason Xu (UIUC)
- Yong Sun (Texas A&M)
2004 Interns
- Aditya Ramamoorthy (UCLA)
- Ashwin Bharambe (CMU)
- Bin Yu (UIUC)
- Jue Wang (UW)
- Sachin Agarwal (BU)
- Yi Cui (UIUC)
For corrections or post-2004 additions to the above lists, please send email to Phil Chou.
