Wei Hu (胡玮)

Assistant Professor, Ph.D. Supervisor

Institute of Computer Science and Technology

Peking University, Beijing, China

Email: forhuwei AT pku DOT edu DOT cn


Research Interests

Graph Signal Processing

Coding and processing for 2D images / videos, depth maps, 3D point clouds, etc.

Graph Neural Networks

Education

Doctor of Philosophy: Electrical Engineering Aug. 2015
The Hong Kong University of Science and Technology (HKUST)

Bachelor of Science: Electrical Engineering Jun. 2010
University of Science and Technology of China (USTC)

Research & Work Experience

Peking University, China Apr. 2017 - Present
Assistant Professor, Ph.D. Supervisor

Technicolor, France Sept. 2015 – Feb. 2017
Researcher in the Imaging Science Laboratory

National Institute of Informatics, Japan Jan. 2012 - Jun. 2015
Student Intern

MTrec Research Group, HKUST Sept. 2010 - Aug. 2015
Research Assistant

Microsoft Research Asia, China Jul. 2009 - Aug. 2009
Student Intern in Visual Computing Group
  • 11/06/2017 - 11/10/2017: Invited to visit National Institute of Informatics, Tokyo
  • 10/27/2017: 1 ICASSP'18 paper submitted
  • 10/11/2017: 1 Alibaba Innovative Research (AIR) proposal accepted
  • 09/30/2017: 1 MSRA collaborative research proposal submitted
  • 09/01/2017: One Ph.D. student Xiang Gao and one Master student Zeqing Fu joined our group
  • 08/23/2017: 1 ACM TOMM paper submitted
  • 06/21/2017: 1 MMSP'17 paper accepted
  • 06/15/2017: Selected to be Ph.D. supervisor
  • 04/24/2017: Join Peking University as Assistant Professor

Ph.D. / Master Students

  • Xiang Gao
  • Zeqing Fu

Current Undergraduate Interns

  • Yuanwei Zhang (Peking University)
  • Gusi Te (Peking University)
  • Junkun Qi (Peking University)
  • Xiaokang Chen (Peking University)
  • Jingzhi Chang (Peking University)

Other Collaborating Students

  • Mingyuan Zhao (Tsinghua University)
  • Yiqun Xu (Peking University)

Journal Publications

  1. Wei Hu, Mozhdeh Seifi, Erik Reinhard
    Over- and Under-Exposure Reconstruction of a Single Plenoptic Capture
    Submitted to ACM Transactions on Multimedia Computing, Communications and Applications (TOMM)

  2. Wei Hu, Gene Cheung, Masato Kazui
    Graph-based Dequantization of Block-Compressed Piecewise Smooth Images [PDF]
    IEEE Signal Processing Letters, vol. 23, no. 2, pp. 242-246, February, 2016. (Patent filed with Samsung Japan.)

  3. Wei Hu, Gene Cheung, Antonio Ortega
    Intra-Prediction and Generalized Graph Fourier Transform for Image Coding [PDF]
    IEEE Signal Processing Letters, vol. 22, no. 11, pp. 1913-1917, November, 2015.

  4. Wei Hu, Gene Cheung, Antonio Ortega, Oscar C. Au
    Multi-resolution Graph Fourier Transform for Compression of Piecewise Smooth Images [PDF]
    IEEE Transactions on Image Processing, vol. 24, no. 1, pp. 419-433, January, 2015.

  5. Wenxiu Sun, Oscar C. Au, Lingfeng Xu, Yujun Li, Wei Hu
    Seamless View Synthesis through Texture Optimization [PDF]
    IEEE Transactions on Image Processing, vol. 23, no. 1, pp. 342-355, January, 2014.

Conference Publications

    2017

  1. Yiqun Xu, Wei Hu, Shanshe Wang, Xinfeng Zhang, Shiqi Wang, Siwei Ma, Wen Gao
    Cluster-Based Point Cloud Coding With Normal Weighted Graph Fourier Transform
    Submitted to IEEE International Conference on Acoustics, Speech and Signal Processing, Alberta, Canada, 2018

  2. Wei Hu, Mozhdeh Seifi, Erik Reinhard
    Optical Center Estimation for Lenslet-based Plenoptic Cameras [PDF]
    Accepted to IEEE International Workshop on Multimedia Signal Processing, Luton, October, 2017.

  3. 2015

  4. Yung-Hsuan Chao, Antonio Ortega, Wei Hu, Gene Cheung
    Edge-Adaptive Depth Map Coding with Lifting Transform on Graphs [PDF]
    31st Picture Coding Symposium, Cairns, Australia, May, 2015.

  5. 2014

  6. Jiahao Pang, Gene Cheung, Wei Hu, Oscar C. Au
    Redefining Self-Similarity in Natural Images for Denoising Using Graph Signal Gradient [PDF]
    Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, Siem Reap, city of Angkor Wat, Cambodia, December, 2014.

  7. Rui Ma, Oscar C. Au, Pengfei Wan, Lingfeng Xu, Wenxiu Sun, Wei Hu
    Improved Temporal Psychovisual Modulation for Backward-Compatible Stereoscopic Display [PDF]
    IEEE Global Conference on Signal and Information Processing, Atlanta, Georgia, USA, December, 2014.

  8. Wei Hu, Gene Cheung, Xin Li, Oscar C. Au
    Graph-based Joint Denoising and Super-resolution of Generalized Piecewise Smooth Images [PDF]
    International Conference on Image Processing, Paris, France, October, 2014. (Top 10% paper award.)

  9. Wei Dai, Oscar C. Au, Wenjing Zhu, Pengfei Wan, Wei Hu, Jiantao Zhou
    SSIM-based rate-distortion optimization in H.264 [PDF]
    IEEE International Conference on Acoustics, Speech, and Signal Processing, Florence, Italy, May, 2014.

  10. Wenxiu Sun, Oscar C. Au, Lingfeng Xu, Yujun Li, Wei Hu
    Seamless View Synthesis through Texture Optimization [PDF]
    Transactions on Image Processing, vol. 23, no. 1, pp. 342-355, January, 2014.

  11. 2013

  12. Wei Hu, Xin Li, Gene Cheung, Oscar C. Au
    Depth Map Denoising using Graph-based Transform and Group Sparsity [PDF] [Code]
    IEEE International Workshop on Multimedia Signal Processing, Pula, Italy, October, 2013. (Top 10% paper award.)

  13. Wei Dai, Oscar C Au, Wenjing Zhu, Wei Hu, Pengfei Wan, Jiali Li
    A robust interpolation-free approach for sub-pixel accuracy motion estimation [PDF]
    IEEE International Conference on Image Processing, Melbourne, Australia, September, 2013.

  14. Chao Pang, Oscar C Au, Feng Zou, Xingyu Zhang, Wei Hu, Pengfei Wan
    Optimal dependent bit allocation for AVS intra-frame coding via successive convex approximation [PDF]
    IEEE International Conference on Image Processing, Melbourne, Australia, September, 2013.

  15. Ruobing Zou, Oscar C. Au, Guyue Zhou, Wei Dai, Wei Hu, Pengfei Wan
    Personal photo album compression and management [PDF]
    IEEE International Symposium on Circuits and Systems, Beijing, China, May, 2013.

  16. Lingfeng Xu, Oscar C. Au, Wenxiu Sun, Jiali Li, Wei Hu, Rui Ma
    Ray-Space based Camera Spacing Correction via Convex Optimization [PDF]
    IEEE International Conference on Acoustics, Speech and Signal Processing, Vancouver, Canada, March, 2013.

  17. 2012

  18. Wenxiu Sun, Oscar C. Au, Lingfeng Xu, Yujun Li, Wei Hu, Zhiding Yu
    Texture Optimization for Seamless View Synthesis Through Energy Minimization [PDF]
    ACM International Conference on Multimedia, Nara, Japan, October, 2012.

  19. Wei Hu, Gene Cheung, Xin Li, Oscar C. Au
    Depth Map Compression using Multi-resolution Graph-based Transform for Depth-image-based Rendering [PDF]
    IEEE International Conference on Image Processing, Orlando, FL, September, 2012. (Patent filed.)

  20. Yujun Li, Oscar C. Au, Lingfeng Xu, Wenxiu Sun, Wei Hu
    Inferring Depth from a Pair of Images Captured Using Different Aperture Settings [PDF]
    International Conference on Multimedia Modeling, China, September, 2012.

  21. Wei Hu, Gene Cheung, Xin Li, Oscar C. Au
    Depth Map Super-resolution Using Synthesized View Matching for Depth-image-based Rendering [PDF]
    3rd International Workshop on Hot Topics in 3D (in conjunction with ICME 2012), Melbourne, Australia, July, 2012.

  22. Wei Hu, Oscar C. Au, Lin Sun, Wenxiu Sun, Lingfeng Xu, Yujun Li
    Adaptive Depth Map Filter for Blocking Artifacts Removal and Edge Preserving [PDF]
    IEEE International Symposium on Circuits and Systems, Seoul, Korea, May, 2012.

Patents

  • Two patents to be filed by Technicolor.

  • Wei Hu, Mozhdeh Seifi, Erik Reinhard
    High Dynamic Range Imaging from a Single Plenoptic Shot
    First Regular Filing by Technicolor, France, May 2016.

  • Wei Hu, Mozhdeh Seifi, Erik Reinhard
    Optical Center Estimation from Micro-image Symmetry
    First Regular Filing by Technicolor, France, Feb. 2016.

  • Wei Hu, Gene Cheung
    Graph-based Dequantization of Block-Compressed Piecewise Smooth Images
    filed by National Institute of Informatics, transferred to Samsung Japan, Aug. 2015.

  • Wei Hu, Gene Cheung
    Depth Map Compression using Multi-resolution Graph-based Transform for Depth-image-based Rendering
    filed by National Institute of Informatics, Japan, May 2012.
  • Introduction to Computation (A), Teaching Assistant, Fall Semester 2017

Reviewer for the following Journals/Conferences

  • IEEE Transactions on Image Processing (TIP)
  • IEEE Signal Processing Letters (SPL)
  • IEEE Transactions on Circuits and Systems for Video Technology (TCSVT)
  • IEEE International Conference on Image Processing (ICIP)
  • International Conference on Multimedia and Expo (ICME)
  • International Workshop on Multimedia Signal Processing (MMSP)