Profile

Yafan Zhao
Title: Dr
First Name: Yafan
Surname: Zhao
Position: Lecturer/Researcher
Telephone: +44 (0) 1224 262423
Email:
ORCID: ORCID Icon http://orcid.org/0000-0002-3238-7567

Key Duties and Responsibilities

  • Undergraduate and Postgraduate Lecturing
  • Research in Video Coding and Communications
  • PhD, Postgraduate and Undergraduate Supervisory
  • Project Management

Academic Background

  • PhD Video Coding, The Robert Gordon University, UK, 2004.
  • MSs Information System, The Robert Gordon University, Aberdeen, UK, 2000.
  • BSc Telecommunication Engineering, Nanjing University of Science and Technology, Nanjing, China, 1998.

Professional background

Dr Yafan Zhao is a recognised researcher and expert of Video Coding and communications with particular specialization in Performance Optimisation for Video Coding and Communications, Reconfiguration Video Transport, Perceptual Video Coding, Video Coding Standards and Algorithms and Software and Hardware Design. She has written nearly 30 publications, including journal papers, patents and international conference papers. She contributes to the MPEG Reconfigurable Video Coding standards effort and is a regular reviewer for top journals, including IEEE Transactions on Circuits and Systems for Video Technology.

Dr Zhao has successfully managed research projects with a value of over £500K, including an EPSRC project funded by UK EPSRC research council from 2006 to 2011 and a Proof-of-Concept project funded by the Scottish government. She is the co-investigator/primary investigator for the EPSRC project and the co-investigator for the PoC project.

She has worked with leading international video communication companies to design and implement video coding algorithms, to optimize video codec performance and to advise on video coding standards.

Research Interests & Expertise

  • Performance optimisation for Video Coding and Communications
  • Complexity management for Video Coding
  • Reconfigurable Video Coding and Transport
  • Perceptual video quality metric and perpetual optimised Video Coding
  • Adaptive Transform Coding for Video Compression
  • Video Coding Standards, Algorithms and Design
  • Algorithm, software and hardware video CODEC design and optimisation

Additional Information / Media work / Funding

  • Co-investigator/ Primary investigator and project manager for "Fast video coding: estimation based control of video codec complexity" project, funded by UK EPSRC Research council, (2006 –2011)
  • Co-investigator and project manager for "Video Compression with Adaptive Computation for Mobile Multimedia Terminals Proof of Concept (Plus)" project, funded by Scottish Enterprise, (2003-2006)

Professional Body Membership

  • Member of IEEE

Publications and Contributions

Journal papers/Theses

  1. A. Bhat, C. S. Kannangara, Y Zhao and I. Richardson "A Full Reference Quality Metric for Compressed Video based on Mean Squared Error and Video Content", IEEE Transactions on Circuits and Systems for Video Technology, Vol 22, Issue 2, 2012,pp 165-173.
  2. C S Kannangara, I E Richardson , M Bystrom & Y Zhao, "Complexity Control of H.264/AVC based on Mode-conditional Cost Probability Distributions", IEEE Trans. Multimedia, Vol. 11, Issue 3, 2009 , pp 433 - 442.
  3. M. Bystrom, I. Richardson and Y. Zhao, "Efficient Mode Selection for H.264 Complexity Reduction in a Bayesian Framework," Signal Processing: Image Communication, vil. 23, iss. 2, pp. 71-86, February 2008.
  4. C S Kannangara, I E G Richardson, M Bystrom, J Solera, Y Zhao, A MacLennan & R Cooney, "Low Complexity Skip Prediction for H.264 through Lagrangian Cost Estimation", IEEE Transactions on Circuits and Systems for Video Technology, February 2006.
  5. Y Zhao and I E G Richardson, "Macroblock Classification for Complexity Management of Video Encoders", Signal Processing: Image Communication, Vol. 18, Issue 9, Oct. 2003 pp. 801-811.
  6. I E G Richardson and Y Zhao, "Adaptive Management of Video Encoder Complexity", Journal of Real-Time Imaging, Vol. 8, No. 4, Aug 2002, pp. 291-301
  7. Y Zhao, "Complexity Management of Video Encoders", PhD thesis, The Robert Gordon University, March 2004

MPEG standards contributions

  1. Y. Zhao, M. Bystrom, C.S. Kannangara, I. Richardson and J. Philp, "A Random Access Protocol for Configurable Video Coding", Document M16927, ISO/IEC JTC1/SC29/WG11 (MPEG), China, October 2009.
  2. I.E. Richardson, C.S. Kannangara, M. Bystrom, J. Philp and Y. Zhao, "Fully Configurable Video Coding, Part 2 - A Proposed Platform for Reconfigurable Video Coding", Document M16752, ISO/IEC JTC1/SC29/WG11 (MPEG), London, July 2009
  3. I.E. Richardson, C.S. Kannangara, M. Bystrom, J. Philp and Y. Zhao, "Fully Configurable Video Coding, Part 1 - Overview", Document M16751, ISO/IEC JTC1/SC29/WG11 (MPEG), London, July 2009.

Contributions in refereed conference proceedings

  1. C.S. Kannangara, Yafan Zhao, Iain Richardson and Maja Bystrom, "Complexity Control of H.264 Based on a Bayesian Framework," Proceedings of International Picture Coding Symposium (PCS) 2007, Portugal, November 2007.
  2. Y Zhao, M Bystrom and I E G Richardson, " A MAP Framework for Efficient SKIP/CODE Mode Decision in H.264", Proceedings of International Conference on Image Processing (ICIP) 2006, Atlanta, USA, 8-11 October 2006.
  3. I E G Richardson, M Bystrom, and Y Zhao, "Fast H.264 Skip Mode Selection Using an Estimation Framework", Proceedings of International Picture Coding Symposium (PCS) 2006, Beijing, China, 24-26 April, 2006.
  4. Y Zhong, I Richardson, A Miller, and Y Zhao, "Perceptual Quality Of H.264/AVC Deblocking Filter" IEE Visual Information Engineering 2005, pp379-384,Glasgow, 4~6 April, 2005.
  5. C S Kannangara, I E G Richardson, M Bystrom, J Solera, Y Zhao, A MacLennan & R Cooney, "Complexity Reduction of H.264 using Lagrange Optimization Methods," IEE VIE 2005, Glasgow, 4~6 April, 2005.
  6. Wei Wei Lee, Iain Richardson, Ken Gow, Yafan Zhao, Roger Staff, "Hybrid segmentation of the hippocampus in MR images", Proceeding of European Signal Processing Conference (EUSIPCO), 2005.
  7. I E G Richardson and Y Zhao, "Video Encoder Complexity Reduction by Estimation Skip Mode Distortion", Proceedings of International Picture Coding Symposium (PCS) 2004, Singapore, 24~27, Oct. 2004.
  8. C S Kannangara, I E G Richardson and Y Zhao, "H.264 Complexity Management using Macroblock Skip-Mode Prediction", PGNet,Liverpool, 28~29, June 2004.
  9. Y Zhao and I E G Richardson, "Macroblock skip-mode prediction for Complexity control of Video Encoders", Proceedings of IEE Visual Information Engineering 2003, 7~9 July 2003, Surrey, U.K, pp. 5-8.
  10. Y Zhao and I E G Richardson, "Macroblock Classification for Video Encoder Complexity Management", Proceedings of International Picture Coding Symposium, 23-25 April 2003, Saint-Malo, France, pp. 371-376.
  11. Y Zhao and I E G Richardson, "Complexity Management for Video Encoders", Proceedings of ACM Multimedia Conference, 1-6 December 2002, Juan Les Pins, France, pp. 647-649.
  12. Y Zhao and I E G Richardson, "Computational Complexity Management of Motion Estimation in Video Encoders", Proceedings of IEEE Data Compression Conference 2002, 2-4 April, 2002, Snowbird, UT, USA, pp. 483
  13. Y Zhao, L Muir and I E G Richardson, "Implementing MPEG-4 Visual in software", IEE Seminar on Visual Media Standards, 25 April 2002.
  14. I E G Richardson and Y Zhao, "Adaptive Algorithms for Variable Complexity Video Coding", Proceedings of International Conference on Image Processing (ICIP) 2001, Thessaloniki, Greece, October 2001.
  15. I E G Richardson and Y Zhao, "Video CODEC Complexity Management", Proceedings of International Picture Coding Symposium 2001, Seoul, Korea, April 2001.

Patents

  1. I Richardson and Y Zhao, "Macroblock Classification for Complexity Management of Video Encoders", EP patent application 1,574,072.
  2. I Richardson and Y Zhao, "Macroblock Classification for Complexity Management of Video Encoders", WO patent application 2,2004,056,125.