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Dr.-Ing. Thomas Wedi
Panasonic R&D Center Germany
Monzastr. 4c
63225 Langen
phone: +49 6103 766-1194
fax: +49 6103 766-166
Thomas Wedi left the Institut für Informationsverabeitung.
Publications and research activities from the time after the departure are not listed here.

Thomas Wedi received the Dipl.-Ing. degree in electrical engineering in 1999 and the Dr.-Ing. degree in 2004, both from the University of Hannover. From 1999 till 2003 he worked as a research scientist and teaching assistant at the "Institut fuer Theoretische Nachrichtentechnik, und Informationsverarbeitung" of University of Hannover with research focused on motion and aliasing compensated prediction for video coding. In 2001 he became the "Ober-Ingenieur" at this institute. Since December 2003, he is project leader at the Panasonic R&D Center Germany where he is responsible for the video coding standardization activities and the development of next generation video coding schemes.

Dr. Thomas Wedi is an active contributor to the ITU-T Video Coding Experts Group (VCEG) and the ISO/IEC / ITU-T Joint Video Team (JVT), where the H.264 / MPEG-4 AVC video coding standard has been developed. In both standardization groups he chaired ad-hoc groups that are related to coding efficiency improvements. From 2003 till 2004 he also chaired an ad-hoc group on a related topic within the Blu-ray disc foundation. In cooperation with Robert Bosch GmbH and Matsushita Electric Industrial Co., Ltd. he holds several international patents in the area of video compression.

Scientific Publications

Publications of Thomas Wedi (May 2007)

Dissertation:

  • Thomas Wedi,
    "Adaptive bewegungs- und aliasingkompensierende Prädiktion fuer die Videocodierung",
    Fortschritt-Berichte VDI, Reihe 10, Nr. 744, ISBN 3-18-374410-4, 2004

Journal Articles:

  • T. Wedi,
    Adaptive Interpolation Filters and High-Resolution Displacements forVideo Coding",
    IEEE Transactions on Circuits and Systems for Video Technology, Volume 16, Issue 4, April 2006

  • T. Wedi,
    Blu-ray - Die naechste Generation der optischen Discs",
    FKT - Die Fachzeitschrift für Fernsehen, Film und elektronische Medien, 59. Jahrgang, Heft 7/2005, Juli 2005

  • T. Wedi and M. Narroschke
    Der H.264/AVC Viedeocodierstandard,
    Telekommunikation Aktuell, Berichte aus Forschung und Entwicklung in Informationstechnik und Telekommunikation, 58. Jahrgang, Heft 07-08, Juli-August 2004

  • J. Ostermann, J. Bormans, P. List, D. Marpe, M. Narroschke, F. Pereira, T. Stockhammer, and T. Wedi
    Video coding with H.264/AVC: Tools, Performance, and Complexity,
    IEEE Circuits and Systems Magazine, Volume 4, Number 1, First Quarter 2004, invited paper

  • T. Wedi and H. G. Musmann,
    Motion and Aliasing Compensated Prediction for Hybrid Video Coding,
    IEEE Transactions on Circuits and Systems for Video Technology, Volume 13, Number 7, July 2003, invited

Conference Papers:

  • S. Wittmann, T. Wedi,
    "Transmission of Post-Filter Hints for Video Coding Schemes",
    Proc. IEEE International Conference on Image Processing (ICIP 2007), San Antonio, Texas, USA, September 2007, to appear

  • G. Sullivan, H. Yu, S. Sekiguchi, H. Sun, T. Wedi, S. Wittmann, Y.-L. Lee, A. Segall, T. Suzuki,
    "New Standardized Extensions of MPEG4-AVC/H.264 for Professional-Quality Video Applications",
    Proc. IEEE International Conference on Image Processing (ICIP 2007), San Antonio, Texas, USA, September 2007, invited paper , to appear

  • C. Debes, T. Wedi, C. Brown, A. Zoubir,
    "Motion Estimation Using a Joint Optimisation of the Motion Vector Field and a Super-Resolution Reference Image",
    Proc. IEEE International Conference on Image Processing (ICIP 2007),San Antonio, Texas, USA, September 2007, to appear

  • T. Wedi, S. Wittmann, T. Palfner, B. Schuur, F. Knicker,
    "Advances in Hybrid Video Coding",
    Proc. Electronic Imaging 2007: Visual Communications and Image Processing (VCIP 2007), San Jose, California USA, January 2007, invited paper

  • B. Schuur, T. Wedi, S. Wittmann,
    "Using Frequency Selective Update for Video Coding",
    Proc. IEEE International Conference on Image Processing (ICIP 2006), Atlanta, GA, October 2006

  • T. Palfner and T. Wedi,
    "Advanced Scanning for Intra Frame Coding",
    Proc. IEEE International Conference on Image Processing (ICIP 2006), Atlanta, GA, October 2006

  • B. Schuur, T. Wedi, S. Wittmann,
    "Video Coding Using Frequency Selective Update",
    Proc. Picture Coding Symposium (PCS 2006), Beijing, China, April 2006

  • T. Wedi and S. Wittmann,
    Quantization Offset for Video Coding,
    Proc. IEEE International Symposium on Circuits and Systems (ISCAS 2005), Kobe, Japan, May 2005

  • T. Wedi,
    Adaptive 3D Interpolation Filter for Motion and Aliasing Compensated Prediction,
    Proc. Picture Coding Symposium (PCS 2003), Saint-Malo, France, April 2003

  • T. Wedi,
    Adaptive Interpolation Filter for Motion Compensated Prediction",
    Proc. IEEE International Conference on Image Processing (ICIP 2002), Rochester, New York USA, September 2002, invited paper

  • T. Wedi,
    Adaptive Interpolation Filter for Motion and Aliasing Compensated Prediction,
    Proc. Electronic Imaging 2002: Visual Communications and Image Processing (VCIP 2002), San Jose, California USA, January 2002

  • T. Wedi
    Adaptive Interpolation Filter for Motion Compensated Hybrid Video Coding,
    Proc. Picture Coding Symposium (PCS 2001), Seoul, Korea, April 2001

  • T. Wedi,
    Hybrid Video Coding Based on High-Resolution Displacement Vectors,
    Proc. Electronic Imaging 2001: Visual Communications and Image Processing (VCIP 2001), San Jose, California USA, January 2001

  • T. Wedi,
    A Time-Recursive Interpolation Filter for Motion Compensated Prediction Considering Aliasing,
    Proc. IEEE International Conference on Image Processing (ICIP 1999), Kobe, Japan, October 1999

  • L. Falkenhagen and T. Wedi,
    Improving Block-Based Disparity Estimation by Considering the Non-Uniform Distribution of the Estimation Error,
    in "3D Structure from Multiple Images of Large-Scale Environments", proceedings of SMILE workshop, pp. 93-108, June 6-7, 1998, Freiburg, Germany, ISBN 3-540-65310-4 Springer Verlag, 1998.



Standardization Contributions

JVT (Joint Video Team of ISO/IEC MPEG & ITU-T VCEG):

VCEG (ITU-T Q.6/SG16):

MPEG (ISO/IEC):

  • T. Wedi, H. Ohtaka, J. Wus, S. Sekiguchi,
    "Intra-only H.264/AVC profiles for professional applications",
    ISO/IEC JTC 1/SC 29/WG 11 Doc. N13964, Hangzhou, China, October, 2006

  • T. Wedi, T. Suzuki, Y Yamada, T. Imaide, T. MacMahon, S. de Waele, B.-M. Jeon, S. Gordon, N. Ito,
    "Definition of a 4:2:0 / 8-bit Profile for H.264/AVC FRExt",
    ISO/IEC JTC 1/SC 29/WG 11 Doc. N11017, Redmond, WA, USA, July 2004

  • U. Benzler, T. Wedi, M. Wien, M. Wollborn,
    "Technical Description of Video Coding Proposal",
    ISO/IEC JTC 1/SC 29/WG 11 Doc. N7455, Sydney, Australia, Jul. 2001

  • T. Wedi, U. Benzler,
    "Syntax-Proposal for the combination of error resilience tools with interlaced mode and grayscale shape coding",
    ISO/IEC JTC 1/SC 29/WG 11 Doc. N4880, Vancouver, Canada, Jul. 1999

Patents:

  • 31 international patents filed