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Seminars

Papers

Reports



FlexCode Seminars

Tampere, 12 March 2009, 14.00-15.30, Abstract

  1. Adriana Vasilache, NRC Tampere , 'Recent advances in flexible geometric structures for speech and audio coding'[0,4MB]

Rennes, 18 December 2008, 13.30-14.30, Abstract

  1. Bastiaan Kleijn, KTH, 'Scalable Audio Coding for Heterogeneous Communication Networks' [0,6MB]

Paris, Institut Telecom, Telecom ParisTech, CNRS LTCI, 16 December 2008, Abstract

  1. Alexey Ozerov, KTH, 'FlexCode project - flexible source coder and some theoretical results on model-based quantization under high-rate theory assumptions' [2,1MB]

Tampere, 16 June 2008, 13:30-15:00, Abstracts

  1. Laurent Schmalen, RWTH, 'Turbo Source Coding'[1,8MB]

  2. Janusz Klejsa, KTH, 'Flexible Multiple Description Coding of Audio'[0,7MB]

Paris, 10 January 2008, 13:30-15:00

  1. Adriana Vasilache, Nokia, 'Speech and Audio Coding with Flexible Geometric Structures'[0,4MB]

  2. Harald Pobloth, Ericsson, 'Scenarios for FlexCode / Next Generation Audio Coding'[0,5MB]

Stockholm, 17 October 2007, 14:30-16:00

  1. Marie Oger, Orange/FT, 'Recent Advances in Model-based Transform Audio Coding'[0,6MB]

  2. Alexey Ozerov, KTH, 'A Flexible Audio Coding Platform Based on the Autoregressive Model'[0,37MB]

IRISA, Rennes, 24 September 2007

  1. Alexey Ozerov, KTH, 'Flexible Audio Coding Scheme Based on the Autoregressive Model'[0,73MB]

Lannion, 6 June 2007, 13:30-15:00

  1. Jan Plasberg, KTH, 'The Sensitivity Matrix – Integrating Perception into the Flexcode Project'[0,6MB]

  2. Laurent Schmalen, RWTH, 'Modern Techniques for Flexible, Iterative Source-Channel Decoding'[1,6MB]

Helsinki, 29 November 2006, 13:30-14:30

  1. Bastiaan Kleijn, KTH, 'The FlexCode Project' [0,5MB]

  2. Peter Vary, RWTH, 'Flexible, Iterative Source-Channel Decoding' [1,0MB]

Papers
    2007
  1. Marie Oger, Stéphane Ragot, Marc Antonini, "Transform audio coding with arithmetic-coded scalar quantization and model-based bit allocation," IEEE Int. Conf.  Acoustics, Speech and Signal Processing (ICASSP),  Honolulu, Vol. IV, pp. 545-548, April 2007.
  2. Laurent Schmalen, Thorsten Clevorn, Peter Vary, "Iterative Source-Coded Equalization: Turbo Error Concealment for ISI Channels," Proceedings of IEEE Workshop on Signal Processing Advances in Wireless Communications (SPAWC), June 2007.
  3. Laurent Schmalen, Peter Vary, Marc Adrat, Thorsten Clevorn, "On the EXIT Characteristics of Feed Forward Convolutional Codes," Proceedings of IEEE International Symposium on Information Theory (ISIT), June 2007.
  4. Adriana Vasilache, "Indexing of lattice codevectors applied to error resilient audio coding," Proceedings of 30th AES International Conference, Saariselkä, Finland, March 15–17, 2007.
  5. W. Bastiaan Kleijn, and Alexey Ozerov, "Rate distribution between model and signal," In IEEE Worksh. on Apps. of Signal Processing to Audio and Acoustics (WASPAA), pp. 243-246, Mohonk, NY, Oct. 2007.
  6. W. Bastiaan Kleijn, Minyue Li, "Least Significant Bit Coding of Speech," In IEEE Asilomar Conference on Signals, Systems, and Computers (CSSC), pp. 1485-1490, Pacific Grove, CA, Nov. 2007.
  7. Alexey Ozerov, and W. Bastiaan Kleijn, "Flexible quantization of audio and speech based on the autoregressive model," In IEEE Asilomar Conference on Signals, Systems, and Computers (CSSC), pp. 535-539, Pacific Grove, CA, Nov. 2007.
  8. Richard Heusdens, W. Bastiaan Kleijn and Alexey Ozerov, "Entropy-constrained high-resolution lattice vector quantization using a perceptually relevant distortion measure," in IEEE Asilomar Conference on Signals, Systems, and Computers (CSSC), pp. 2075-2079, Pacific Grove, CA, Nov. 2007.

    2008
  9. Thi Minh Nguyet Hoang, Marie Oger, Stéphane Ragot and Marc Antonini, "Embedded Transform Coding of Audio Signals by Model-Based Bit Plane Coding," IEEE Int. Conf.  Acoustics, Speech and Signal Processing (ICASSP), pp. 4013-4016, Las Vegas, March 2008.
  10. Marie Oger, Stéphane Ragot and Marc Antonini, Model-Based Deadzone Optimization for Stack-Run Audio Coding with Uniform Scalar Quantization," IEEE Int. Conf.  Acoustics, Speech and Signal Processing (ICASSP), pp. 4761 - 4764, Las Vegas, March 2008.
  11. Janusz Klejsa, Marcin Kuropatwinski and W. Bastiaan Kleijn, "Adaptive Resolution-Constrained Scalar Multiple Description Coding," IEEE Int. Conf.  Acoustics, Speech and Signal Processing (ICASSP), pp. 2945-2948, Las Vegas, March 2008.
  12. Laurent Schmalen, Peter Vary, Thorsten Clevorn, and Birgit Schotsch, "Efficient Iterative Source-Channel Decoding Using Irregular Index Assignments," ITG International Conference on Source and Channel Coding, 2008.
  13. Thorsten Clevorn, Laurent Schmalen, Peter Vary, Marc Adrat, "On Redundant Index Assignments for Iterative Source-Channel Decoding," IEEE Communications Letters, pp. 514-516, Vol. 12, No. 7, July 2008.
  14. Guoqiang Zhang, Janusz Klejsa, and W. Bastiaan Kleijn, "Asymptotic Analysis of Multiple Description Lattice Vector Quantization," Workshop on Information Theoretic Methods in Science and Engineering, Tampere, August 2008.
  15. Laurent Schmalen, Peter Vary, Marc Adrat, Thorsten Clevorn, "Complexity-Reduced Iterative Source-Channel Decoding by Conditional Quantization," in Proceedings of International Symposium on Turbo Codes & Related Topics, pp.  327-332, Lausanne, Switzerland, September 2008.
  16. Adriana Vasilache, "Entropic encoding of lattice codevectors based on product code indexing," in Proceedings of EUSIPCO-2008., Lausanne, Switzerland, August 25-29, 2008.
  17. Stefan Bruhn, Volodya Grancharov, W. Bastiaan Kleijn, Janusz Klejsa, Minyue Li, Jan Plasberg, Harald Pobloth, Stephane Ragot, Adriana Vasilache, "The FlexCode Speech and Audio Coding Approach," ITG Fachtagung Sprachkommunikation, Aachen, October, 2008.
  18. Laurent Schmalen, Peter Vary, and Marc Adrat, "Reduced-Search Source Decoders for Iterative Source-Channel Decoding," in ITG-Fachtagung Sprachkommunikation, Aachen, October 2008.
  19. Laurent Schmalen, Birgit  Schotsch, Marco Jeub, Peter Vary, and Thorsten Clevorn, "The FlexCode Channel Coding Approach,"in ITG-Fachtagung Sprachkommunikation, Aachen, October 2008.
  20. Thorsten Clevorn, Laurent Schmalen, Peter Vary, and Marc Adrat, "Iterative Source-Channel Decoding: Design of Redundant Index Assignments," in ITG-Fachtagung Sprachkommunikation, Aachen, October 2008.

    2009
  21. T.M.N. Hoang, S. Ragot, M. Oger, and M. Antonini, "New method of bit plane coding for speech and audio signals,"Proc. CORESA, Toulouse, France, March 2009 (in French).
  22. Laurent Schmalen, Peter Vary, "Near-Lossless Compression and Protection by Turbo Source-Channel (De-)Coding Using Irregular Index Assignments," IEEE Int. Conf.  Acoustics, Speech and Signal Processing (ICASSP), Taipei, Taiwan, April 2009.
  23. Janusz Klejsa and W. Bastiaan Kleijn, "Rate distribution between model and signal for multiple descriptions," IEEE Int. Conf.  Acoustics, Speech and Signal Processing (ICASSP), Taipei, Taiwan, April 2009.
  24. Alexey Ozerov and W. Bastiaan Kleijn, "Optimal Parameter Estimation for Model-based Quantization," IEEE Int. Conf.  Acoustics, Speech and Signal Processing (ICASSP), Taipei, Taiwan, April 2009.
  25. T.M.N. Hoang, S. Ragot, M. Oger, and M. Antonini, "A new bitplane coder for scalable transform audio coding," IEEE Int. Conf.  Acoustics, Speech and Signal Processing (ICASSP), Taipei, Taiwan, April 2009.
  26. Guoqiang Zhang, Janusz Klejsa, W. Bastiaan Kleijn, "Analysis of K-channel Multiple-Description Quantization," in Data Compression Conference, IEEE Computer Society, March 2009.
  27. Moo-Young Kim, W. Bastiaan Kleijn, "Reduction of the impact of distortion outliers and source mismatch in resolution-constrained quantization ," IEEE Trans. Audio, Speech and Language Processing, accepted for publication.
  28. Minyue Li and W. Bastiaan Kleijn, "Quantization with Constrained Relative Entropy and Its Application to Audio Coding," 127th Convention of Audio Engineering Society, New York, 9-12 October 2009.
  29. Adriana Vasilache " New Directions in Lattice Based Lossy Compression" to appear as book chapter in "Recent Advances in Signal Processing " , Ed. Aleksandar Lazinica, IN-TECH, Vienna, 2009.

  30. 2010
  31. Laurent Schmalen and Peter Vary, "Error Resilient Turbo Compression of Source Codec Parameters Using Inner Irregular Codes," International ITG Conference on Source and Channel Coding, Siegen, Germany, January 2010.
  32. Laurent Schmalen, Thomas Schlien, and Peter Vary, "The FlexCode Source-Channel Coding Approach for Audio and Speech Transmission," International ITG Conference on Source and Channel Coding, Siegen, Germany, January 2010.
  33. Janusz Klejsa, Minyue Li, and W. Bastiaan Kleijn, "FlexCode - Flexible Audio Coding," IEEE Int. Conf.  Acoustics, Speech and Signal Processing (ICASSP), Dallas, Texas, March 2010.

Thesis
  • Zhe Du, On distributed video coding with multiple descriptions. Master Thesis, KTH-Royal Institute of Technology, August 2008.



  • Public Reports for Year 1 Public Reports for Year 2 Public Reports for Year 3
    1. Deliverable D-0.1 (Management Guidelines)
    2. Deliverable D-2.1 (BISO Channel Model)
    3. Deliverable D-3.1 (Real-World Scenarios)
    1. Deliverable D-1.1 (Baseline Source Coder)
    2. Deliverable D-2.2 (Baseline Channel Coder)
    3. Deliverable D-3.1 (Real-World Scenarios rev.C)
    4. Deliverable D-3.4 (Coding Requirements)
    1. Deliverable D-1.3 (Video Coder Pilot Study)
    2. Deliverable D-2.3 (Final Channel Coder)
    3. Deliverable D-4.3 (Report on FlexCode Hardware Demonstration)
    4. Deliverable D-5.2 (Final Subjective Quality Tests)