B.Sc.(CUHK), M.Sc., Ph.D.(Loughborough), CEng., MIEE, MHKIE, SrMIEEE
Email: wkcham@ee.cuhk.edu.hk
Telephone: +852 2609-8281 Fax: +852 2603-5558
Wai-kuen Cham graduated from The Chinese University of Hong Kong in 1979 in Electronics. He received his M.Sc. and Ph.D. degrees from Loughborough University of Technology, U.K., in 1980 and 1983 respectively. His research work was on image coding and in close collaboration with British Telecom. From June 1984 to April 1985, he was a senior engineer in Datacraft Hong Kong Limited and a lecturer in the Department of Electronic Engineering, Hong Kong Polytechnic (now The Polytechnic University of Hong Kong). Since May 1985, he has been with the Department of Electronic Engineering, the Chinese University of Hong Kong.
Prof. Cham's research interests include image and video signal processing and face recognition. He has published over hundred papers in international journals and proceedings of major conferences and is the inventor of a number of patents. Prof. Cham has acted as a consultant to a number of government and industrial organizations, such as the Hong Kong Consumer Council, Grace Everett Ltd, COMedia HK Ltd and Jet Propulsion Laboratory, NASA. He is the inventor of the Integer Cosine Transform which was used in the NASA Galileo space mission and is adopted in the international video coding standard H.264/AVC and the emerging national standard of China AVS (Audio Video Coding Standard). Prof. Cham is a Chartered Engineer and a senior member of IEEE.
Digital Signal Processing, Image Coding, Image Processing, Video Segmentation, Edge-model-based Image Processing
3D Head Model Reconstruction from Video, Facial Feature Extraction and Face Recognition.
Recipient of The Exemplary Teaching Award 2000 of the Engineering Faculty
Subjects taught in 2007/2008
Member, Technical Program Committee, International Symposium on Intelligent Signal Processing and Communication Systems (ISPAC) 2007.
Member of International Program Committee, The IASTED International Conference on Signal Processing, Pattern Recognition and Applications (SPPRA), Innsbruck, Austria, February 14–16, 2007.
Member of Review Committee for The IEEE International Symposium on Circuits and Systems (ISCAS), New Orleans, USA from 27 to 30 May 2007.
Member of Technical Program Committee - Multimedia Compression and Optimization Track, PCM 2007 (Pacific-Rim Conference on Multimedia) in Hong Kong, 11-14 December 2007.
Member of Program Committee for International Conference on Image and Signal Processing ICISP'08, in Cherbourg, Normandy France, July 1-3, 2008.
Member of the International Program Committee, International Conference on Signal Processing, Pattern Recognition and Applications (SPPRA 2008), Innsbruck, Austria, February 13-15, 2008.
Technical Program Chair, 2010 International Conference on Image Processing (ICIP2010), Hong Kong, 12-15 December 2010.
Journal
Cham,W.K., 'Development of Integer Cosine Transforms by the Principle of Dyadic Symmetry', IEE Proceedings Part I, Vol.136, No.4, August 1989, pp.276-282.
Cham,W.K., Chan,Y.T., 'An Order-16 Integer Cosine Transform', IEEE Trans. on Signal Processing, Vol.39, No.5, May 1991, pp.1205- 1208.
Lo,K.T., Cham,W.K., 'Analysis of Pruning in Fast Cosine Transform', IEEE Trans. on Signal Processing, Vol.44, No.3, March 1996, pp.714-717.
Pang Tin-Chak Johnson, Choy,C.S., Chan,C.F., Cham,W.K., 'A Self-Timed ICT Chip for Image Coding,' IEEE Trans. CAS VT, Vol. 9, No. 6, September 1999, pp.856-860.
Fan,G.L., Cham,W.K., 'Model-based edge reconstruction for low bit-rate wavelet compressed images', IEEE Trans. CAS VT, Vol.10, No.1, February 2000, pp.120-132.
Fan, G.L., Cham, W.K. ‘Postprocessing of Low Bit-rate Wavelet-based Image Coding using Multiscale Edge Characterization,’ IEEE Trans. CAS VT, Vol.11, No. 12, December, 2001, pp.1263-1272.
Liu, J., Lee, Y.T., Cham, W.K., ‘Identifying Faces in a 2D Line Drawing Representing a Manifold Object,’ IEEE Trans. PAMI, Vol.24, No.12, December 2002, pp.1579-1593.
Yao, J., Cham, W.K., ' 3D Modeling and Rendering from Multiple Wide-Baseline Images by Match Propagation,’ Signal Processing: Image Communication, Volume 21, Issue 6, July 2006, pp.506–518.
Chen, Q., Yao, J., Cham, W.K., ' 3D Model Based Pose Invariant Face Recognition from a Single Frontal View,’ Electronic Letters on Computer Vision and Image Analysis, Vol.6, No.1, 2007, pp.13-26.
Chen, Q., Cham, W.K., Lee, K.K, ‘Extracting Eyebrow Contour and Chin Contour for Face Recognition,’ Pattern Recognition, Vol.40, Issue 8, August 2007, pp. 2292-2300.
Yao, J., Cham, W.K., ' Robust Multi-view Feature Matching from Multiple Unordered Views,’ Pattern Recognition, Vol.40, No. 11, November 2007, pp.3081-3099.
Sun, D.Q., Cham, W.K., 'An Effective Postprocessing Method for Low Bit Rate Block DCT Coded Images,’ IEEE Trans. Image Processing, Vol.16, No.11, November 2007, pp.2743-2751.
Zhang, Ci-Xun, Yu, L., Lou, J., Cham, W.K., Dong J.,' The Technique of Pre-scaled Integer Transform: Concept, Design and Applications,' IEEE Trans. CASVT, Vol.18, No.1, January 2008, pp.84-97.
Mak, C.M., Fong, C.K., Cham, W.K., ' Fast Motion Estimation for H.264/AVC in Walsh Hadamard Domain,’ IEEE Trans. CASVT, Vol.18, No.6, June 2008, pp.735-745.
Conference
Zhang, W., Cham, W.K., ' Blind Super-resolution from a Single Image,' Accepted for presentation in 2008 IEEE International Conference on Image Processing, San Diego, USA, October 12-15, 2008.
Zhang, W., Cham, W.K., ' Learning-based Face Hallucination in DCT Domain,' Accepted for presentation in IEEE Conference on Computer Vision and Pattern Recongnition (CVPR), Alaska, USA, June 24-26, 2008.
Dong J., Ngan, K.N., Fong, C.K., Cham, W.K., ' A Universal Approach to Developing Fast Algorithm for Simplified Order-16 ICT,' Proceedings of 2007 IEEE International Symposium on Circuits and Systems, New Orleans, USA, 27-30 May 2007, pp.281-284.
Nicol,R.C., Fenn,B.A., Clarke,R.J., Ngan,K.N., Cham,W.K., 'Method and Apparatus for Transmitting an Image, Priority: GB/22.07.81/ GB 8122640, European Patent Office Patent No. 82303825.2.
Cham,W.K., Clarke,R.J., Nicol,R.C., 'Image Transmission', Priority:GB/14.10.82/ GB 8229420, European Patent Office Patent No. 83306067.6.
Yu, L., Cham, W.K., Lou, J., A pending patent application with Zhejiang University, ‘图象和视频信号变换装置及其方法’. Chinese Patent Application Number: 200410015637.4. The work was accepted as a part of the Audio Visual Coding Standard (AVS).
Cham, W.K., Fong, C.K., A pending patent application, ‘离散余弦变换信号与整数余弦变换信号间的信号转换方法’. Chinese Patent Application Number: 200410071003.0
Cham, W.K., Fong, C.K., A pending patent application, ‘视频信号的编码系数的转换装置及其方法’. Chinese Patent Application Number: 200510134530.6
CHAM Wai-Kuen, FONG Chi Keung, DONG Jie, NGAN King Ng, WONG Hoi Ming, WANG Lu, HUO Yan, PUN Thomas H.Y., ‘METHOD AND DEVICE FOR ORDER-16 INTEGER TRANSFORM FROM ORDER-8 INTEGER COSINE TRANSFORM’, US Non-Provisional Patent Application Number 11/950,182, filed on December 4, 2007.
Cham, W.K., Fong, C.K., ‘PROCESSES AND APPARATUS FOR DERIVING ORDER-16 INTEGER TRANSFORMS’, US Non-Provisional Patent Application Number 12/100,358, filed on April 9, 2008.
Cham, W.K., Fong, C.K., ‘METHODS AND APPARATUS FOR DERIVING AN ORDER-16 INTEGER TRANSFORM’, US Non-Provisional Patent Application Number 12/103,676, filed on April 15, 2008.
Cham, W.K., Fong, C.K., ‘DEVICES AND METHODS FOR TRANSFORMING CODING COEFFICIENTS OF VIDEO SIGNALS’, US Non-Provisional Patent Application Number 12/096,531, filed on June 6, 2008.
Ph.D Program:
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