João Miguel Duarte Ascenso

Publications in Books

  1. F. Pereira, C. Brites, J. Ascenso, "Distributed Video Coding: Basics, Codecs and Performance", Chapter in Distributed Source Coding: Theory, Algorithms and Applications, Academic Press, 978-0-12-374485-2. (link)

  2. F. Pereira, J. Ascenso, C. Brites, P. Fonseca, P. Pinho, J. Baltazar, "Evolution and Challenges in Multimedia Representation Technologies", chapter in A Portrait of State-of-the-Art Research at the Technical University of Lisbon, Springer 2007.

  3. L. Natário, C. Brites, J. Ascenso and F. Pereira, “Extrapolating Side Information for Low-Delay Pixel-Domain Distributed Video Coding”, Lectures Notes in Computer Science, Vol. 3893, pp. 16 - 21, 2006.

  4. D. Palma, J. Ascenso, F. Pereira, “Automatic Text Extraction in Digital Video based on Motion Analysis”, Lectures Notes in Computer Science, Vol. 3211 , pp. 588 - 596, 2004.

Publications in Journals

  1. R. Martins, C. Brites, J. Ascenso, F. Pereira, "Statistical Motion Learning for Improved Transform Domain Wyner-Ziv Video Coding", IET Image Processing (accepted).

  2. J. Ascenso, C. Brites, F. Pereira, "Adaptive Deblocking Filter for Transform Domain Wyner-Ziv Video Coding", IET Image Processing, Special Issue on Distributed Video Coding (accepted).

  3. J. Ascenso, C. Brites, F. Pereira, "A Flexible Side Information Generation Framework for Distributed Video Coding", Multimedia Tools and Applications, Special Issue on Distributed Video Coding (accepted).

  4. R. Martins, C. Brites, J. Ascenso, F. Pereira, "Refining Side Information for Improved Transform Domain Wyner-Ziv Video Coding", IEEE Transactions on Circuits and Systems for Video Technology (accepted).

  5. J. Ascenso, F. Pereira, "Advanced Side Information Creation Techniques and Framework for Wyner-Ziv Video Coding", Journal of Visual Communication and Image Representation, Special Issue Resource-aware adaptive video streaming, vol. 19, no. 8, december 2008, pp. 600-613. (link)

  6. C. Brites, J. Ascenso, J.Q. Pedro, F. Pereira, "Evaluating a Feedback Channel Based Transform Domain Wyner–Ziv Video Codec", Signal Processing: Image Communication, vol. 23, no. 4, april 2008, pp. 269–297. (link)

Publications in International Conferences

  1. J. Ascenso, F. Pereira, "Complexity Efficient Stopping Criterion for LDPC Based Distributed Video Coding", 5th International Mobile Multimedia Communications Conference (Mobimedia), London, UK, September 2009. (pdf)

  2. J. Ascenso, F. Pereira, "Low Complexity Intra Mode Selection for Efficient Distributed Video Coding", IEEE International Conference on Multimedia and Expo, Cancun, Mexico, July 2009.(pdf)

  3. X. Huang, C. Brites, J. Ascenso, F. Pereira, and F. Forchhammer, "Distributed Video Coding with Multiple Side Information", in Picture Coding Symposium, Chicago, IL, USA, May 2009. (pdf)

  4. M. Jakubowski, J. Ascenso, G. Pastuszak, "Constant Bitrate Control for a Distributed Video System", International Conference on Signal Processing and Multimedia Applications SIGMAP, Porto, Portugal, July 2008. (pdf)

  5. J. Ascenso, C. Brites, F. Pereira, "Design and Performance of a Novel Low-Density Parity-Check Code for Distributed Video Coding", IEEE International Conference on Image Processing, San Diego, CA, USA, October 2008. (pdf)

  6. J.D. Areira, J. Ascenso, C. Brites, F. Pereira, "Low Complexity Hybrid Rate Control for Lower Complexity Wyner-Ziv Video Decoding", 16th European Conference Signal Processing Conference, Lausanne, Switzerland, August 2008. (pdf)

  7. F. Pereira, C. Brites, J. Ascenso, M. Tagliasacchi, "Wyner-Ziv Video Coding: a Review of the Early Architectures and Further Developments", IEEE International Conference on Multimedia & Expo, Hannover, Germany, June 2008. (pdf)

  8. J. Ascenso, F. Pereira, "Hierarchical Motion Estimation for Side Information Creation in Wyner-Ziv Video Coding", The Second International Conference on Ubiquitous Information Management and Communication, Suwon, Korea, January 2008. (pdf)

  9. J. Q. Pedro, L. D. Soares, C. Brites, J. Ascenso, F. Pereira, C. Bandeirinha, S. Ye, F. Dufaux, T. Ebrahimi, "Studying Error Resilience Performance for a Feedback Channel Based Transform Domain", Picture Coding Symposium 2007, Lisbon, Portugal. (pdf)

  10. X. Artigas, J. Ascenso, M. Dalai, S. Klomp, D. Kubasov, M. Ouaret, "The DISCOVER codec: Architecture, Techniques and Evaluation", Picture Coding Symposium 2007, Lisbon, Portugal. (pdf)

  11. F. Pereira, J. Ascenso, C. Brites, "Studying the GOP Size Impact on the Performance of a Feedback Channel-based Wyner-Ziv Video Codec", IEEE Pacific Rim Symposium on Image Video and Technology, Santiago, Chile, December 2007. (pdf)

  12. J. Areia, C.Brites, J. Ascenso, F. Pereira, "Wyner-Ziv Stereo Video Coding Using a Side Information Fusion Approach", IEEE International Workshop on Multimedia Signal Processing, Chania, Crete, Greece, October 2007. (pdf)

  13. J. Ascenso, F.Pereira, "Adaptive Hash Based Side Information Exploitation for Efficient Wyner-Ziv Video Coding", IEEE International Conference on Image Processing, San Antonio, USA, September 2007. (pdf)

  14. E. Martinian, A. Vetro, J. S. Yedidia, J. Ascenso, A. Khisti, D. Malioutov, "Hybrid Distributed Video Coding Using SCA Codes", IEEE International Workshop on Multimedia Signal Processing, Victoria, Canada, October 2006. (pdf)

  15. J. Ascenso, C. Brites, F. Pereira, "Content Adaptive Wyner-Ziv Video Coding Driven by Motion Activity", IEEE International Conference on Image Processing, Atlanta, USA, October 2007. (pdf)

  16. C. Brites, J. Ascenso, F. Pereira, "Studying Temporal Correlation Noise Modeling for Pixel Based Wyner-Ziv Video Coding", IEEE International Conference on Image Processing, Atlanta, USA, October 2006. (pdf)

  17. M. Tagliasacchi, A. Trapanese, S. Tubaro, J. Ascenso, C. Brites, F. Pereira, "Exploiting Spatial Redundancy in Pixel Domain Wyner-Ziv Video Coding", IEEE International Conference on Image Processing, Atlanta, USA, October 2006. (pdf)

  18. C. Brites, J. Ascenso, F. Pereira, "Feedback Channel in Pixel Domain Wyner-Ziv Video Coding: Myths and Realities", 14th European Conference Signal Processing Conference, Florence, Italy, September 2006. (pdf)

  19. C. Brites, J. Ascenso, F. Pereira, "Modeling Correlation Noise Statistics at Decoder for Pixel Based Wyner-Ziv Video Coding", Picture Coding Symposium 2006, April 2006, Beijing, China. (pdf)

  20. M. Tagliasacchi, A. Trapanese, S. Tubaro, J. Ascenso, C. Brites, F. Pereira, "Intra Mode Decision Based on Spatio-Temporal Cues In Pixel Domain Wyner-Ziv Video Coding", IEEE International Conference on Acoustics, Speech and Signal Processing, May 2006, Toulouse, France. (pdf)

  21. C. Brites, J. Ascenso, F. Pereira, "Improving Transform Domain Wyner-Ziv Video Coding Performance", IEEE International Conference on Acoustics, Speech and Signal Processing, May 2006, Toulouse, France. (pdf)

  22. L. Natário, C. Brites, J. Ascenso, F. Pereira, “Side Information Extrapolation for Low-Delay Pixel-Domain Distributed Video Coding”, International Workshop on Very Low Bitrate Video, Sardinia, Italy, September 2005. (pdf)

  23. A. Trapanese, M. Tagliasacchi, S. Tubaro, J. Ascenso, C. Brites, F. Pereira, "Improved Correlation Noise Statistics Modeling in Frame-based Pixel Domain Wyner-Ziv Video Coding", International Workshop on Very Low Bitrate Video, Sardinia, Italy, September 2005. (pdf)

  24. A. Trapanese, M. Tagliasacchi, S. Tubaro, J. Ascenso, C. Brites, F. Pereira, "Embedding a Block-based Intra Mode in Frame-based Pixel Domain Wyner-Ziv Video Coding", International Workshop on Very Low Bitrate Video, Sardinia, Italy, September 2005. (pdf)

  25. J. Ascenso, C. Brites, F. Pereira, "Motion Compensated Refinement for Low Complexity Pixel Based Distributed Video Coding", IEEE International Conference on Advanced Video and Signal Based Surveillance, Como, Italy, September 2005. (pdf)

  26. J. Ascenso, C. Brites, F. Pereira, "Improving Frame Interpolation with Spatial Motion Smoothing for Pixel Domain Distributed Video Coding", 5th EURASIP Conference on Speech and Image Processing, Multimedia Communications and Services, Slovak Republic, July 2005. (pdf)

  27. J. Ascenso, F. Pereira, “Drift Reduction for a H.264/AVC Fine Grain Scalability with Motion Compensation Architecture”, IEEE International Conference on Image Processing, Singapore, October 2004. (pdf)

  28. D. Palma, J. Ascenso, F. Pereira, “Automatic Text Extraction in Digital Video based on Motion Analysis”, International Conference on Image Analysis and Recognition, September 2004, Porto, Portugal (also published in Lectures Notes of Computer Science , Vol. 3211). (pdf)

  29. J. Ascenso, F. Pereira, “H.264/AVC Fine Grain Scalability using Bitplane Coding”, 5th International Workshop on Image Analysis for Multimedia Interactive Services (WIAMIS 2004), Lisbon, April 2004. (pdf)

  30. J. Ascenso, A. Silva, “Agents for Digital Television”, International Conference on Enterprise Information Systems (ICEIS), Setúbal, Portugal, July 2001. (pdf)

  31. J. Ascenso, P. Correia, F. Pereira, “Face Detection and Tracking”, DICEMAN workshop, Brussels, Belgium, April 2000.

Publications in National Conferences

  1. J. Pedro, C. Brites, J. Ascenso, F. Pereira, "Studying the Feedback Channel in Transform Domain Wyner-Ziv Video Coding", 6th Conference on Telecommunications - ConfTele, Peniche, Portugal, 2007. (pdf)

  2. J. Ascenso, P. Correia, F. Pereira, “A Video Segmentation Toolbox with Support for User Interaction”, 3rd Conference on Telecommunications, Figueira da Foz, Portugal, February 2001. (pdf)

  3. J. Ascenso, P. Correia, F. Pereira, “A Face Detection Solution Integrating Automatic and User Assisted Tools”, 11th Portuguese Conference on Pattern Recognition, Porto, Portugal, May 2000. (pdf)

  4. J. Ascenso, J. Valentim, F. Pereira, “Reconhecimento Automático de Faces usando Informação de Textura e de Geometria 3D”, 4º Encontro Nacional do Colégio de Engenharia Electrotécnica da Ordem dos Engenheiros, Lisboa, Portugal, May 1999.

Contribution to Standards

  1. M. Tagliasacchi, S. Tubaro, J. Ascenso, K. Ramchandran, R. Puri, A. Majumdar, J. Wang, "Distributed Video Coding, a Functional Analysis", ISO/IEC JTC1/SC29/WG11 MPEG2005/M12355 , July 2005, Busan, South Korea.

Talks

  1. J. Ascenso, “Compressão de vídeo: Mais do Mesmo... ou Talvez Não ?”, invited talk in the colloquium of Escola Superior de Tecnologia de Leiria, May 2004.

  2. J. Ascenso, “Compressão de Vídeo em Telemedicina no Sec. XXI”, invited talk in Jornadas de Engenharia Electrotécnica de Castelo Branco, Março 2004.

Other Scientific Activities

  1. Technical Program Committee of International Conference on Multimedia & Expo

  2. Program Committe of International Conference on Signal Processing and Multimedia Applications.

  3. European Commision evaluator of IST FP6 call.

Refereeing

 

Journals:

  1. IEEE Transactions on Image Processing.

  2. IEEE Transactions on Circuits and Systems for Video Technology.

  3. IEEE Signal Processing Letters.

  4. IEEE Transactions on Multimedia

  5. IEE Proceedings on Vision, Image & Signal Processing.

  6. Elsevier Signal Processing.

  7. Elsevier Image Processing: Image Communication.

  8. SPIE Journal of Electronic Imaging.

  9. International Journal on Personal Wireless Communications.

Conferences:

  1. IEEE International Conference on Multimedia & Expo 2007.

  2. International Symposium on Signal Processing and its Applications 2007.

  3. 14th European Signal Processing Conference 2006.

  4. 13th International Conference on Telecommunications 2006.

  5. 14th European Signal Processing Conference 2006.

  6. 7th International Symposium on Signal Processing and its Applications 2005.

  7. 5th Conference on Telecommunications 2005.

  8. 13th European Signal Processing Conference 2004.

  9. Workshop on Image Analysis for Multimedia Interactive Services 2004.

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