• Multimedia Analysis and Retrieval
• Video Coding and Communication

Education

• Ph.D.,Pattern Recognition, 04/1997-04/2000, Shanghai Jiao Tong University, China
• M.S., Signal Processing,     09/1994-04/1997, Chinese Academy of Sciences
• B.S.,  Radio Physics,           09/1990-07/1994, Xiamen University, China

Experience

• Alexander von Humboldt Research Fellow, Institute for Computer Science, University of Freiburg, Germany, 08/2007-Present
• Professor, Institute of Image Communication and Information Processing, Shanghai Jiao Tong University, China, 08/2006-Present
• Assoc. Professor, Institute of Image Communication and Information Processing, Shanghai Jiao Tong University, China, 11/2004-08/2006
• Research Scientist, Institute for Infocomm Research, Singapore, 04/2002-10/2004
• Research Fellow, Centre for Signal Processing, Nanyang Technical University, Singapore, 09/2000-04/2002

Honors

• Microsoft Young Professorship Award, 2006
• Best Young Investigator Paper Award, 2003 SPIE Conference on Video Communication and Image Processing (VCIP2003)

Professional Activities

• Technical Program Co-chair, 2007 IEEE International Workshop on Signal Processing Systems (SiPS2007)
• Special Session Co-Chair, Perceptual Visual Processing, 2006 IEEE Iinternational Conference on Multimedia & Expo (ICME2006)

• Member, Visual Signal Processing and Communications Technical Committee,IEEE Circuits and Systems Society
• Senior Member, IEEE

Selected Publications

[1] W. Zhang, X. Z. Fang, and X. K. Yang, Moving cast shadows detection using ratio edge, IEEE Transactions on Multimedia, pp. 1202-1214, Vol. 9, No. 6, OCTOBER 2007.

[2] W. Zhang, X. Z. Fang, and X. K. Yang, Spatiotemporal Gaussian mixture model to detect moving objects in dynamic scenes, Journal of Electronic Imaging -- April - June 2007 -- Volume 16, Issue 2, 023013  (6 pages) .

[3] J. Zhou, Y. Xu, and X.K. Yang, Quaternion Wavelet Phase based Stereo Matching for Uncalibrated Images, Pattern Recognition Letters, Vol. 28, pp. 1509-1522, May 2007.

[4] X.K. Yang, Y.M. Tan and N. Ling, Rate Control for H.264 with Two-Step Quantization Parameter Determination but Single-Pass Encoding, EURASIP Journal on Applied Signal Processing, Vol.2006, Special Issue on Advanced Video Technologies and Applications for H.264/AVC and Beyond, pp.35-47, 2006.

[5] G.T. Zhai, W.J. Zhang and X.K. Yang, Image Quality Metric with an Integrated Bottom-up and Top-down HVS Approach, IEE Proceedings - Vision, Image and Signal Processing, Vol.153, No.4, pp.456-460, August 2006.

[6] X.K. Yang, and N. Ling, Statistical Multiplexing based on MPEG-4 Fine Granularity Scalability Coding, International Journal of VLSI Signal Processing Systems - Special Issue on Digital and Computational Video, Vol. 42, No.1, pp. 69- 77, Jan. 2006.

[7] T.J. Qian, J. Sun, D. Li, X.K. Yang and J. Wang, Transform Domain Transcoding from MPEG-2 to H.264 with Interpolation Drift-Error Compensation, IEEE Trans. Circuits and Systems for Video Technology, pp.523-534, Vol.15, No.4,  April 2006.

[8] E.P. Ong, X.K. Yang, W.S. Lin, Z.K. Lu, and S.S. Yao, Perceptual Quality And Objective Quality Measurements, International Journal of Visual Communication and Image Representation, In Press, Available online 10 January 2006. 

[9] W. Zhang, X.Z. Fang and X.K. Yang, Moving Vehicles Segmentation Based on Bayesian framework for Gaussian Motion Model, Pattern Recognition Letters, In Press, Available online 26 January 2006.

[10] H. Liu, W.J. Zhang and X.K. Yang, Cross-layer conditional retransmission for layered video streaming over cellular networks, Computer Communication (Elsevier Press), In Press, Available online 10 February 2006.

[11] D.D. Zhang, W.J. Zhang and X.K. Yang, Perceptually-adaptive in-band preprocessing for 3D wavelet video coding, SPIE Optical Engineering, Vol. 45, No.3, pp. 030504-1-3, March 2006.

[12] X. K. Yang, C. Zhu, Z. G. Li, X. Lin and N. Ling, An Unequal Packet Loss Resilience Scheme for Video over the Internet, IEEE Trans. Multimedia, Vol.7, No. 4,  pp. 753-765, August 2005.

[13] X. K. Yang, W. S.  Lin, Z.K. Lu, E. P. Ong and S.S. Yao, Motion-compensated Residue Pre-processing in Video Coding based on Just-noticeable-distortion Profile, IEEE Trans. Circuits and Systems for Video Technology, Vol.15, No.6, pp.742-752, June 2005.

[14] X. K. Yang, W. S.  Lin, Z.K. Lu, X. Lin, S. Rahardja, E. P. Ong and S.S. Yao, Rate Control for videophone using perceptual sensitivity cues, IEEE Trans. Circuits and Systems for Video Technology, Vol.15, No.4, pp.496- 507, April 2005.

[15] X. K. Yang, W. S.  Lin, Z.K. Lu, E. P. Ong and S.S. Yao, Just noticeable distortion model and its applications in video coding, Signal Processing: Image Communication, Vol. 22, No.7, pp. 662-680, August 2005.

[16] Z.K. Lu, W.S. Lin, X.K. Yang, E.P. Ong, and S.S. Yao, Modelling Visual Attention's Modulatory Aftereffects on Visual Sensitivity and Quality Evaluation, IEEE Trans. Image Processing, Vol. 14, No.11, pp. 1928- 1942, Nov. 2005.

[17] X. K. Yang, C. Zhu, Z. G. Li, X. Lin, G. N. Feng, S. Wu and N. Ling, Unequal Loss Protection for Motion Compensated Video Streaming over the Internet, Signal Processing: Image Communication, Vol. 18, No. 3, pp. 157-167, March 2003.

[18] Z. G. Li, C. Zhu, N. Ling, X. K. Yang, G. N. Feng, S. Wu and F. Pan, A Unified Architecture for Real Time Video Coding Systems, IEEE Trans. Circuits and Systems for Video Technology, Vol. 13, No. 6, pp. 472-487, 2003.

[19] Z. G. Li, Lin Xiao, C. Zhu, X. K. Yang and G. N. Feng, A congestion control strategy for multipoint videoconferencing, IEEE Trans. Circuits and Systems for Video Technology, Vol. 12, No. 11, pp 1025-1029, 2002.

[20] X. K. Yang, C. Zhu, Z.G. Li, G.N. Feng and S. Wu, Video over the Internet: Standards and Protocols, ITSC Synthesis Journal, pp. 41-47, 2001.