Electronic Engineering Department, The Chinese University of Hong Kong - Prof CHAM, Wai Kuen 湛偉權

Professors

Professor
B.Sc.(CUHK), M.Sc., Ph.D.(Loughborough), CEng., MIEE, MHKIE, SrMIEEE
homepage Rm 413, Ho Sin Hang Engineering Building phone Tel: +852 3943 8281 This email address is being protected from spambots. You need JavaScript enabled to view it.
hyperlink http://www.ee.cuhk.edu.hk/~wkcham/

Research Interests:

Image and video signal processing
Research Highlights

 

 

 

Resume of Career

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. He is now a professor in the department.

Current Research Interests

Image and video signal processing

Highlights of Recent Achievements

(note: Names underlined are W.K. Cham's current or former students.)

  • Cham, W.K., Fong, C.K., 'METHODS AND APPARATUS FOR DERIVING AN ORDER-16 INTEGER TRANSFORM', US Patent Number: 8,175,165 B2, May 8,2012.
  • Cham, W.K., Fong, C.K., 'PROCESSES AND APPARATUS FOR DERIVING ORDER-16 INTEGER TRANSFORMS', US Patent Number: 8,255,445 B2, Aug. 28, 2012.
  • Cham, W.K., Fong, C.K., '视频信号的编码系数的转换装置及其方法', China Patent Office Patent No. ZL 2009 1 0160034.6, publication number: 2011042200284720, Sep. 9, 2009.
  • Cham, W.K., Fong, C.K., 'An Apparatus and a Method for Transforming Coding Coefficient of Video Signals', Hong Kong Standard Patent No. HK1138971, Apr. 23, 2010.
  • Cham, W.K., Fong, C.K., 'ビデオ信號の符號化係數を變換裝置および方法', Japan Patent Office Patent No.5086271, Sep. 14, 2012.
  • Cham, W.K., 'GENERATION OF AN ORDER-2N TRANSFORM FROM AN ORDER-N TRANSFORM', US Patent number: 8,102,918 B2, Jan. 24, 2012.
  • Yu, L., Cham, W.K., Lou J., '图象和视频信号变换装置及其方法', 2010.04.28, China Patent Office Patent No. ZL 2004 1 0015637.4 (The work was accepted as a part of the Audio Visual Coding Standard AVS).

Taught Courses

  • Digital Image Processing
  • Random Process & DSP
  • Signals and System

Honors and Awards

  • Recipient of The Exemplary Teaching Award 2000 of the Engineering Faculty

External Service in Recent 3 Years

  • Associate Editor, IEEE Trans. Image Processing, Dec. 2010 to Nov. 2013
  • Member, IEEE MMTC Image, Video and Mesh coding Interest Group, Oct. 2012-Sep. 2014
  • Voting Member, IEEE Multimedia Communications Technical Committee (MMTC), since Jan. 2009
  • International Student Counsellor, IET, since Apr. 1998
  • Member, Technology Review Panel, Hong Kong Applied Science and Technology Research Institute Company Ltd, Jan. 2010-Dec. 2015
  • Member of the International Program Committee, International Conference on Signal Processing, Pattern Recognition and Applications (SPPRA), 2009-2013
  • Member of International Program Committee for International Conference on Signal Processing and Multimedia Applications, (SIGMAP), 2009-2013
  • Member of the Program Committee, 2011 2nd World Congress on Computer Science and Information Engineering (CSIE 2011), Changchun, China, Jun. 17-19, 2011
  • Technical Program Chair, 2010 International Conference on Image Processing (ICIP), Hong Kong, 26-29 Sep. 2010

Publications for the Past 3 Years

(note: Names underlined are W.K. Cham's current or former students.)

Journal Publications

  1. Ouyang, W., Zhang, R., Cham, W.K., 'The Segmented Gray-Code Kernels for Fast Pattern Matching,' IEEE Trans. Image Processing, Vol. 22, No. 4, Apr. 2013, pp.1512-25.

  2. Fong, C.K., Cham, W.K., 'LLM Integer Cosine Transform and its Fast Algorithm,' IEEE Trans. CASVT, Vol. 22, No. 6, Jun. 2012, pp. 844-854.

  3. Zhang, W., Cham, W.K., 'Gradient-directed Multi-exposure Composition,' IEEE Trans. Image Processing, Vol. 21, No. 4, Apr. 2012, pp.2318-2323.

  4. Zhang, W., Cham, W.K., 'Reference-Guided Exposure Fusion in Dynamic Scenes,' Journal of Visual Communication and Image Representation, Vol. 23, Issue 3, Apr. 2012, pp.467-475.

  5. Zhang, W., Cham, W.K., 'Single Image Refocusing and Defocusing,' IEEE Trans. Image Processing, Vol. 21, No. 2, Feb. 2012, pp.873-882.

  6. Ouyang, W., Tombari, F., Mattoccia, S., Stefano, L.D., Cham, W.K., 'Performance Evaluation of Full Search Equivalent Pattern Matching Algorithms,' IEEE Trans. PAMI, Vol. 34, Issue 1, Jan 2012, pp.127-143.

  7. Tombari, F., Ouyang, W., Di Stefano, L., Cham, W.K., 'Adaptive Low Resolution Pruning for Fast Full Search Equivalent Pattern Matching,' Pattern Recognition Letters, Vol. 32, Issue 15, Nov. 2011, pp.2119-2127.

  8. Zhang, W., Cham, W.K., 'Hallucinating Face in the DCT Domain,' IEEE Trans. Image Processing, Vol. 20, No.10, Oct. 2011, pp.2769-2779.

  9. Zhao, C., Wang, X., Cham, W.K., 'Background Subtraction via Robust Dictionary Learning,' EURASIP Journal on Image and Video Processing, Vol. 2011, Article ID 972961, Feb. 2011, pp.1-12.

  10. Zhang, R., Ouyang, W., Cham, W.K.,'Image Postprocessing by Non-local Kuan's Filter,' Journal of Visual Communication and Image Representation, Vol. 22, Issue 3, Apr. 2011, pp.251-262.

  11. Ouyang, W., Cham, W.K., 'Fast Algorithm for Walsh Hadamard Transform on Sliding Windows,' IEEE Trans. PAMI, Vol. 32, No.1, Jan. 2010, pp.165-171.

Conference Publications

  1. Zhao, C., Cham, W.K., 'Joint Face Alignment with A Generic Deformable Face Model,' Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition (CVPR), Colorado Springs, USA, Jun. 20-25, 2011, pp.561-568.

  2. Zhang, R., Liu, Y., Cham, W.K., 'High Performance Deartifacting Filters in Video Compression,' Proceedings of 2011 International Conference on Acoustics, Speech and Signal Processing (ICASSP), Prague, Czech Republic, May 22-27, 2011, pp.1069-1072.

  3. Xiao, R., Xiao, C., Ouyang, W., Cham, W.K., 'Fast Pattern Matching Using Black Sheep Algorithm,' Proceedings of the 2010 International Symposium on Intelligent Signal Processing and Communications Systems (ISPACS 2010), Cheng Du, China, Dec. 6-8, 2010, pp.837-840.

  4. Zhang, W., Cham, W.K., 'High Quality Artifact-free Super-resolution,' Proceedings of the 2010 International Conference on Image Processing (ICIP), Hong Kong, Sep. 26-29, 2010, pp.889-892.

  5. Fong, C.K., Cham, W.K., 'Simple Order-16 Integer Transform for Video Coding,' Proceedings of the 2010 International Conference on Image Processing (ICIP), Hong Kong, Sep. 26-29, 2010, pp.161-164.

  6. Ouyang, Wanli, Cham, W.K., 'Fast pattern matching using orthogonal Haar transform,' Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition (CVPR), San Francisco, USA, Jun. 15-17, 2010, pp.3050-3057.

  7. Zhang, W., Cham, W.K., 'Gradient-directed Composition of Multi-exposure Images,' Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition (CVPR), San Francisco, USA, Jun. 15-17, 2010, pp.530-536.

  8. Zhang, W., Yao, J., Cham, W.K., '3D Scene Understanding from Multiple Views,' Proceedings of the 7th International Symposium on Neural Networks (ISNN 2010), Shanghai, China, Jun. 6-9, 2010, pp.97-103.

Contribution to standards

  1. [AVS_M2666] C.K. Fong, W.K. Cham, Y. Liu, K.M. Cheng, Adaptive Block-size Transform towards AVS 2.0, 32nd AVS meeting, Guangzhou, Mar. 2010.

  2. [AVS_M2911] W.K. Cham, C.K. Fong,  Qinglong Han, A New Orthogonal Order-16 Transform for ABT, 40th AVS meeting, Beijing, Mar. 2012.

  3. [AVS_M2985] C.K. Fong,  W.K. Cham, Qinglong Han, Recursive Integer Cosine Transform in AVS2, 43rd AVS meeting, Beijing, Dec. 2012.

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