Book Chapters:

Zhengyou Zhang, Zicheng Liu and Ruigang Yang “Model-Based Face Modeling and Tracking with Application to Videoconferencing”, in “Face Processing”, W. Zhao and R. Chellappa (eds),  Academic Press, 2006.

Zicheng Liu and Baining Guo, “Face Synthesis”, in “Handbook of Face Recognition”, Z. Li and . K. Jain (eds), Springer-Verlag,  2004.

Bo Zhang, Zicheng Liu, and Baining Guo "Photo-realistic Conversation Agent", in "Integrated Image and Graphics Technologies", D. Zhang, M. Kamel, and G. Baciu (eds.), Kluwer Academic Press, Sept., 2003.

Papers:

Gang Hua, Zicheng Liu, Zhengyou Zhang, Ying Wu, Demetri Terzopoulos, Heung-Yeung Shum, An Iterative Local-Global Energy Minimization for Automatic Extraction of Objects of Interest, IEEE Transactions on Pattern Analysis and Machine  Intelligence, accepted.

Qingshan Zhang, Zicheng Liu, Baining Guo, Demetri Terzopoulos, Heung-Yeung Shum, A Geometry-Driven Photorealisitc Facial Expression Synthesis, IEEE Transactions on Visualization and Computer Graphics, Vol. 12, No. 1, 2006.

Gang Hua, Zicheng Liu, Zhengyou Zhang, Ying Wu, Automatic Business Card Scanning with a Camera, International Conference on Image Processing (ICIP) 2006.

Mingli Song, Zicheng Liu, Baining Guo, Real-Time Facial Expression Mapping for High Resolution 3D Meshes, Computer Graphics International 2006.

Amar Subramanya, Zhengyou Zhang, Zicheng Liu, Alex Acero, Speech Modeling with Magnitude-Normalized Complex Spectra and Its Application to Multisensory Speech Enhancement, ICME 2006.

Zicheng Liu, Michael Seltzer, Alex Acero, Ivan Tashev, Zhengyou Zhang, Mike Sinclair, A Compact Multi-Sensory Headset for Hands-Free Communication, IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA 05) Mohonk, Oct. 16-19, 2005.

Zhengyou Zhang, Amarnag Subramanya, Zicheng Liu, Alex Acero, Jasha Droppo, A Graphical Model for Multi-Sensory Speech Processing in Air-and-Bone Conductive Microphones, Eurospeech 2005.

Ya Chang, Ross Cutler, Zicheng Liu, Zhengyou Zhang, Alex Acero, Automatic Head-Size Equalization in Panorama Images for Video Conferencing, IEEE International Conference on Multimedia and Expo (ICME) 2005, Amsterdam, July 5-9.

Zicheng Liu, Michael Cohen, Head-Size Equalization for Better Visual Perception of Video Conferencing, IEEE International Conference on Multimedia and Expo (ICME) 2005, Amsterdam, July 5-9.

Amarnag Subramanya, Li Deng, Zicheng Liu, Zhengyou Zhang, Multi-Sensory Speech Processing: Incorporating Automatically Extracted Hidden Dynamic Information, ICME 2005, Amsterdam, July 5-9.

Yong Rui, Zicheng Liu, Shannon Kallin, Gavin Janke, Cem Paya, Characters or Faces: A User Study on Easy of Use for HIPs, HIP 2005, Lecture Notes in Computer Science 3517, Henry S. Baird and Daniel P. Lopresti (eds), pp53-65.

Zicheng Liu, Amar Subramanya, Zhengyou Zhang, Jasha Droppo, Alex Acero, Leakage Model and Teeth Clack Removal for Air- and Bone-Conductive Integrated Microphones, International Conference on Acoustics, Speech, and Signal Processing (ICASSP) 2005.

Zicheng Liu, Zhengyou Zhang, Alex Acero, Jasha Droppo, Xuedong Huang, Direct Filtering for Air- and Bone-Conductive Integrated Microphones, IEEE International Workshop on Multimedia Signal Processing (MMSP), 2004.

Li Deng, Zicheng Liu, Zhengyou Zhang, Alex Acero, Nonlinear Information Fusion in Multi-Sensor Processing – Extracting and Exploiting Hidden Dynamics of Speech Captured by a Bone-Conductive Microphone, IEEE International Workshop on Multimedia Signal Processing (MMSP), 2004.

Yong Rui, Zicheng Liu, ARTiFACIAL: Automated Reverse Turing test Using FACIAL features, Multimedia Systems Journal 2004, No.9.

Yanli Zheng, Zicheng Liu, Zhengyou Zhang, Mike Sinclair, Jasha Droppo, Li Deng, Alex Acero, Xuedong Huang, Air-And Bone-Conductive Integrated Microphones for Robust Speech Detection and Enhancement. IEEE Workshop on Automatic Speech Recognition and Understanding (ASRU) 2003, St. Thomas, U.S. Virgin Islands, Nov. 30 - Dec. 4, 2003.

Zhengyou Zhang, Zicheng Liu, Mike Sinclair, Alex Acero, Li Deng, Jasha Droppo, Xuedong Huang, Yanli Zheng, Multi-sensory Microphones for Robust Speech Detection, Enhancement, and Recognition, International Conference on Acoustics, Speech, and Signal Processing (ICASSP) 2004, Montreal, May 17-21, 2004.

Zhen Wen, Zicheng Liu, Michael Cohen, Ke Zheng, Thomas Huang, Low Bit-Rate Video Streaming for Face-To-Face Teleconference. IEEE International Conference on Multimedia and Expo. 2004.

Zicheng Liu, Yng Shan, Zhengyou Zhang, Image-Based Surface Detail Transfer, IEEE Computer Graphics and Application, Vol 24, No. 3, 2004.

Zhen Wen, Zicheng Liu, Thomas Huang, Face Relighting with Radiance Environment Maps, IEEE Conference on Computer Vision and Pattern Recognition (CVPR) 2003.

Li-Wei He, Zicheng Liu, Zhengyou Zhang, Why Take Notes? Use Whiteboard the Capture System, IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP) 2003.

Zhengyou Zhang, Zicheng Liu, Dennis Adler, Michael Cohen, Erik Hanson, Ying Shan, Robust and Rapid Generation of Animated Faces from Video Images: A Model-Based Modeling Approach, International Journal on Computer Vision, Vol 58, No. 2. 2004, page 93-120.

Ross Cutler, Yong Rui, Anoop Gupta, JJ Cadiz, Ivan Tashev, Li-Wei He, Alex Colburn, Zhengyou Zhang, Zicheng Liu, Steve Silverberg, Distributed Meetings: a Meeting Capture and Broadcasting System, ACM Multimedia 2002

Zhengyou Zhang, Ying Wu, Zicheng Liu, Side Statistics and Maximum Discriminant Analysis for Real-Time Tracking. IEEE Asian Conference on Computer Vision (ACCV)’02

Zhen Wen, Zicheng Liu, Thomas Huang, Model-based face image coding using spherical harmonics. IEEE International Conference on Image Processing (ICIP) 2002.

Zicheng Liu, Zhengyou Zhang,Chuck Jacobs, Michael Cohen, Rapid Modeling of Animated Faces From Video. Journal of Visualization and Computer Animation, Vol 12, No.4 (Sep. 2001).

Le Lu, Zhengyou Zhang, Harry Shum, Zicheng Liu, Hong Chen. Model- and Exemplar-based robust head pose tracking under occlusion and varying expression. CVPR 2001 Worhshop, Dec 2001.

Ying Shan, Zicheng Liu, Zhengyou Zhang, Image-Based Surface Detail Transfer, IEEE Conference on Computer Vision and Pattern Recognition (CVPR) 2001.

Zicheng Liu, Ying Shan, Zhengyou Zhang, Expressive Expression Mapping with Ratio Images. SIGGRAPH 2001, Los Angeles, August 12-17

Ying Shan, Zicheng Liu, Zhengyou Zhang, Model-Based Bundle Adjustment with Application to Face Modeling, International Conference on Computer Vision (ICCV) 2001.

Zicheng Liu and Zhengyou Zhang, Robust Head Motion Computation by Taking Advantage of Physical Properties, IEEE Workshop on Human Motion, 2000

Zicheng Liu and Michael F. Cohen, Keyframe Motion Optimization By Relaxing Speed and Timing, Computer Animation and Simulation'95, D. Terzopoulos and D. Thalmann(eds.).

Zicheng Liu and Michael F. Cohen, Efficient symbolic interface for constraint based animation system, Computer Animation and Simulation'95, D. Terzopoulos and D. Thalmann(eds.).

Zicheng Liu and Michael F. Cohen, Decomposition of Linked Figure Motion: Diving, Proceedings of the 5th EuroGraphics Workshop on Simulation and Animation, 1994.

Zicheng Liu, Steven J. Gortler and Michael F. Cohen, Hierarchical Spacetime Control, SIGGRAPH94 (Computer Graphics, Vol 28, No 7).

Zicheng Liu, Efficient Animation Techniques Balancing Both User Control and Physical realism, PhD thesis, Princeton University, 1996.

Ding-Zhu Du, Biao Gao, Ronald L. Graham, Zicheng Liu and Peng-Jun Wang, Minimum Steiner Trees in Normed Planes, Discrete and Computational Geometry 9 (1993).

Jin-Yi Cai, Wolfgang Fuchs, Dexter Kozen and Zicheng Liu, Efficient Average-Case Algorithms for the Modular Group, Proceedings of 35th Symposium on Foundations of Computer Science (FOCS 1994).

Jin-Yi Cai and Zicheng Liu, The Bounded Membership Problem of the Monoid SL2(N), Mathematical and Systems Theory, Vol 29,1996, 573-587.

Yen-Feng Xu and Zicheng Liu, On Maximum Weight K-subset Partition Problem, Journal of Chinese University, Vol. 9, Ser.A, No.4, 453-457, 1994.

Zicheng Liu and Ding-Zhu Du, On Steiner Minimal Trees with Lp Distances, Algorithmica (1992) 7.

Zicheng Liu, Improvements of Two Stability Theorems of Ordinary Differential Equations, Journal of Huazhong Normal University (in Chinese), June, 1986.