Aline Roumy

Email: aline (dot) roumy (at) inria (dot) fr Address: INRIA Campus Universitaire de Beaulieu 35042 Rennes Cedex - FRANCE Office: F 136 BLUE Phone: +33 2.99.84.73.94 Fax: +33 2.99.84.71.71 Project Assistant: +33 2.99.84.72.28 Hello, and welcome to my homepage!

I am a signal processing person: I am interested in signal and image processing, coding theory and information theory.
I've been a member of INRIA since 2001. Before that I was at Princeton University and I got my PhD from the University of Cergy-Pontoise in collaboration with Thales. I've also visited Eurecom and Berkeley University.
I am currently serving as a member of the French National University Council (CNU 61).

Research

Latest news

• NEW!!! R. Martinez-Noriega and A. Roumy. ``Prior and macro-filling order for image completion'', ICIP 2013. (PDF)
  
• NEW!!! M. Bevilacqua, A. Roumy, C. Guillemot and ML. Alberi. ``K-WEB: Nonnegative Dictionary learning for sparse image representations'', ICIP 2013. (PDF)
  
• NEW!!! E. Dupraz, A. Roumy and M. Kieffer. ``Practical Coding Scheme for Universal Source Coding with Side Information at the Decoder'', DCC 2013, oral presentation. (PDF)
  
• NEW!!! E. Dupraz, A. Roumy and M. Kieffer. ``Universal Wyner-Ziv coding for Gaussian sources'', ICASSP 2013. (PDF)
  
• NEW!!! M. Bevilacqua, A. Roumy, C. Guillemot and ML. Alberi. ``Super-resolution using Neighbor Embedding of Back-projection residuals'', DSP 2013. Special Session on "Emerging Ultra High Resolution Formats and Applications". (PDF)
  
• NEW!!! M. Bevilacqua, A. Roumy, C. Guillemot and ML. Alberi. ``Compact and coherent dictionary construction for Example-based Super Resolution'', ICASSP 2013. (PDF)
  

Current research activities

Image and video coding for multimedia communications


• Error-resilient video coding, unequal erasure protection and bundle packet protection.
• Compressed sensing, with application to coding of correlated sparse sources.
• Universal and ergodic distributed source coding.
• Super-resolution.

Recent research projects

• 2 collaborations in the framework of the Joint research laboratory between INRIA and Alcatel Lucent Bell Labs. Jan. 2011-Jan. 2014.
  
• ANR ARSSO: Adaptable, Robust, Streaming SOlutions. Jun. 2010- Jun. 2013. Funded by ANR.
  
• FP7-IST NOE NEWCOM++. Network of Excellence in Wireless COMmunication. Jan. 2008-Apr. 2011. Funded by CEE.
  

Awards

• Best Paper Award "Francesco Carassa" 2011 awarded by GTTI (Gruppo Italiano Telecomunicazioni e Teoria dell'Informazione) for the paper "Lossy compression of distributed sparse sources: a practical scheme" by G. Coluccia, E. Magli, A. Roumy and V. Toto-Zarasoa. picture

Recent Publications

1. R. Martinez-Noriega and A. Roumy. ``Prior and macro-filling order for image completion'', ICIP 2013. (PDF)
   
   
2. M. Bevilacqua, A. Roumy, C. Guillemot and ML. Alberi. ``K-WEB: Nonnegative Dictionary learning for sparse image representations'', ICIP 2013. (PDF)
   
   
3. E. Dupraz, A. Roumy and M. Kieffer. ``Practical Coding Scheme for Universal Source Coding with Side Information at the Decoder'', DCC 2013, oral presentation. (PDF)
   
   
4. E. Dupraz, A. Roumy and M. Kieffer. ``Universal Wyner-Ziv coding for Gaussian sources'', ICASSP 2013. (PDF)
   
   
5. M. Bevilacqua, A. Roumy, C. Guillemot and ML. Alberi. ``Super-resolution using Neighbor Embedding of Back-projection residuals'', DSP 2013. Special Session on "Emerging Ultra High Resolution Formats and Applications". (PDF)
   
   
6. M. Bevilacqua, A. Roumy, C. Guillemot and ML. Alberi. ``Compact and coherent dictionary construction for Example-based Super Resolution'', ICASSP 2013. (PDF)
   
   

1. E. Dupraz, A. Roumy and M. Kieffer. ``Source Coding with Side Information at the Decoder: Models with Uncertainty, Performance Bounds, and Practical Coding Schemes'', ISITA 2012. (PDF)
   
   
2. R. Martinez-Noriega, A. Roumy and G. Blanchard. ``Exemplar-Based Image Inpainting: Fast Priority And Coherent Nearest Neighbor Search'', MLSP 2012. (PDF)
   
   
3. M. Bevilacqua, A. Roumy, C. Guillemot and ML. Alberi. ``Low-Complexity Single-Image Super-Resolution based on Nonnegative Neighbor Embedding'', BMVC 2012. (PDF) (Abstract-PDF)
   examples and results
   
   
4. M. Bevilacqua, A. Roumy, C. Guillemot and ML. Alberi. ``Neighbor embedding based single-image Super-Resolution using semi-nonnegative matrix factorization'', ICASSP 2012. (PDF)
   
   
5. A. Roumy, V. Roca and B. Sayadi. ``Memory Consumption Analysis for the GOE and PET Unequal Erasure Protection Schemes'', ICC 2012. (PDF)
   
   

1. V. Roca, A. Roumy, B. Sayadi, ``The Generalized Object Encoding (GOE) LDPC-Staircase FEC Scheme'', IETF RMT Working Group, draft-roca-rmt-goe-ldpc-00.txt (Work in Progress), Oct 2011. (ASCII) (HTML)
   
   
2. O. Le Meur, T. Baccino, A. Roumy, ``Prediction of the Inter-Observer Visual Congruency (IOVC) and application to image ranking", ACM Multimedia (long paper) 2011. [Acceptance Rate=17%] (PDF) (Project page)
   
   
3. A. Roumy, V. Roca, B. Sayadi, R. Imad,, ``Unequal Erasure Protection and Object Bundle Protection with the Generalized Object Encoding Approach'', INRIA Research Report RR-7699, July 2011. (PDF) (HTML)
   
   
4. V. Roca, A. Roumy, B. Sayadi, ``The Generalized Object Encoding (GOE) Approach for the Forward Erasure Correction (FEC) Protection of Objects and its Application to Reed- Solomon Codes over GF(2^^8)'', IETF RMT Working Group, draft-roca-rmt-goe-fec-00.txt (Work in Progress), July 2011. (ASCII) (HTML)
   
   
5. G. Coluccia, E. Magli, A. Roumy, V. Toto-Zarasoa, ``Lossy compression of distributed sparse sources: a practical scheme'' 2011 European Signal processing Conference (EUSIPCO), Aug. 2011. (PDF) (HTML)
   
   
6. V. Toto-Zarasoa, A. Roumy, C. Guillemot, ``Maximum Likelihood BSC parameter estimation for the Slepian-Wolf problem'' IEEE Communications Letters, vol. 15, no. 2, pp. 232-234, February, 2011. (PDF) (HTML)
   
   
7. V. Toto-Zarasoa, A. Roumy, C. Guillemot, `` Source modeling for Distributed Video Coding'' IEEE Transactions on Circuits and Systems for Video Technology (accepted for publication), 2011. (PDF) (HTML)
   
   

Publications by category

Journal papers

1. V. Toto-Zarasoa, A. Roumy, C. Guillemot, `` Source modeling for Distributed Video Coding'' IEEE Transactions on Circuits and Systems for Video Technology, pp 174-187, Feb. 2012. (PDF) (HTML)
   
   
2. V. Toto-Zarasoa, A. Roumy, C. Guillemot, ``Maximum Likelihood BSC parameter estimation for the Slepian-Wolf problem'' IEEE Communications Letters, vol. 15, no. 2, pp. 232-234, February, 2011. (PDF) (HTML)
   
   
3. N. Sellami, M. Siala, A. Roumy, I. Kammoun, ``MAP sequence equalization for imperfect frequency selective channel knowledge'' European Transactions on Telecommunications, Vol. 21, Issue 2, pages 121-130, Feb. 2010. (PDF) (HTML)
   
   
4. I. Hadj Kacem, N. Sellami, A. Roumy, I. Fijalkow. Training sequence length optimization for a turbo-detector using decision-directed channel estimation. Research Letters in Communications, Article ID 860368, 2008.
5. N. Sellami, A. Roumy, I. Fijalkow. A proof of convergence of the MAP turbo-detector to the AWGN case. IEEE Trans. on Signal Processing, , 56(4):2716-2724, April 2008.
6. A. Roumy, D. Declercq. Characterization and Optimization of LDPC codes for the 2-user Multiple Access Channel. EURASIP Journal on Wireless Communications and Networking, Article ID 74890, 2007.
7. A. Roumy, D. Gesbert. Optimal matching in wireless sensor networks. IEEE Journal on Selected Topics in Signal Processing, Special issue on Convex Optimization Methods in Signal Processing, pages 725-735, December 2007.
8. N. Sellami, A. Roumy, I. Fijalkow. The impact of both a priori information and channel estimation errors on the MAP equalizer performance. IEEE Trans. on Signal Processing, pages 2716-2724, July 2006.
9. A. Roumy, S. Guemghar, G. Caire, S. Verdu. Design Methods for Irregular Repeat-Accumulate Codes. IEEE Trans. on Information Theory, pages 1711-1727, August 2004.
10. G. Caire, S. Guemghar, A. Roumy, S. Verdu. Maximizing the spectral efficiency of coded CDMA under successive decoding. IEEE Trans. on Information Theory, pages 152-164, January 2004.
11. A. Roumy, I. Fijalkow, D. Pirez. Low-Cost Turbo Receiver for Coded Asynchronous DS-CDMA in Frequency Selective Channels. Journal of Comm. and Networks, pages 202-210, September 2001.

Book Chapters

1. C. Guillemot, A. Roumy. Distributed Source Coding: Theory, Algorithms, and Applications. Chapter 6. Toward constructive Slepian-Wolf coding schemes.. P. L. Dragotti, M. Gastpar (eds.), Chap. 6, Academic Press, February 2009.

Reports

1. A. Roumy, V. Roca, B. Sayadi, R. Imad, ``Unequal Erasure Protection and Object Bundle Protection with the Generalized Object Encoding Approach'', INRIA Research Report RR-7699, July 2011. (PDF) (HTML)
   
   
2. V. Roca, A. Roumy, B. Sayadi, ``The Generalized Object Encoding (GOE) Approach for the Forward Erasure Correction (FEC) Protection of Objects and its Application to Reed- Solomon Codes over GF(2^^8)'', IETF RMT Working Group, draft-roca-rmt-goe-fec-00.txt (Work in Progress), July 2011. (ASCII) (HTML)
   
   

Conference papers

1. O. Le Meur, T. Baccino, A. Roumy, ``Prediction of the Inter-Observer Visual Congruency (IOVC) and application to image ranking", ACM Multimedia (long paper) 2011. [Acceptance Rate=17%] (PDF) (Project page)
   
   
2. G. Coluccia, E. Magli, A. Roumy, V. Toto-Zarasoa, ``Lossy compression of distributed sparse sources: a practical scheme'' 2011 European Signal processing Conference (EUSIPCO), Aug. 2011. (PDF) (HTML)
   
   
3. V. Toto-Zarasoa and A. Roumy and C. Guillemot, ``Non-uniform source modeling for Distributed Video Coding'', European Signal Processing Conference (EUSIPCO), August 2010. (PDF)
   
   
4. L. Helouet and A. Roumy, ``Covert channel detection using Information Theory'', International Workshop on Security Issues in Concurrency (SecCo), August 2010. (PDF)
   
   
5. V. Toto-Zarasoa and A. Roumy and C. Guillemot, ``Non-asymmetric Slepian-Wolf coding of non-uniform Bernoulli sources'', International Symposium on Turbo Codes (ISTC), Sept. 2010. (PDF)
   
   
6. V. Toto-Zarasoa and A. Roumy and C. Guillemot, ``Hidden Markov model for Distributed Video Coding'', International Conference on Image Processing (ICIP), Sept. 2010. (PDF)
   
   
7. I. Hadj Kacem, N. Sellami, I. Fijalkow, and A. Roumy. ``Optimisation conjointe du nombre des symboles pilotes et de l'allocation des puissances pour les canaux MIMO non selectifs en frequence'', In 22th Symposium on Signal and Image Processing, Gretsi, Dijon, France, September 2009. (PDF)
   
   
8. I. Hadj Kacem, N. Sellami, I. Fijalkow, and A. Roumy. ``Joint training interval length and power allocation optimization for MIMO at fading channels'', In IEEE International Symposium on Wireless Communication Systems 2009 (ISWCS'09), Sienna, Italy, September 2009. (PDF)
   
   
9. I. Hadj Kacem, N. Sellami, I. Fijalkow, and A. Roumy. ``Training interval length optimization for mimo at fading channels using decision-directed channel estimation'', In IEEE International Conference on Wireless and Mobile Computing (WiMob'09), Morocco, October 2009. (PDF)
   
   
10. I. Kammoun, M. Siala, N. Sellami, and A. Roumy. ``Symbol MAP detection aided with first channel estimate for TDMA systems over a frequency selective channel'', In IEEE International Symposium on Wireless Communication Systems 2009 (ISWCS'09), Sienna, Italy, September 2009. (PDF)
    
    
11. C. Herzet, V. Toto-Zarasoa, and A. Roumy, ``Error resilient non-asymmetric slepian-wolf coding'', In IEEE International Conference on Communications (ICC), pp. 1-9, June 2009. (PDF)
    
    
12. V. Toto-Zarasoa, A. Roumy, C. Guillemot, and C. Herzet, ``Robust and fast non asymmetric distributed source coding using turbo codes on the syndrome trellis'', in IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), pp. 2477-2480, April 2009. (PDF)
    
    
13. V. Toto-Zarasoa, E. Magli, A. Roumy, and G. Olmo, ``On distributed arithmetic codes and syndrome based turbo codes for slepian-wolf coding of non uniform sources'', in European Signal Processing Conference (EUSIPCO), pp. 2249-2253, Aug. 2009. (PDF)
    
    
14. V. Toto-Zarasoa, A. Roumy, C. Guillemot. Rate-adaptive codes for the entire Slepian-Wolf region and arbitrarily correlated sources. In IEEE Int. Conference on Acoustics, Speech and Signal Processing, ICASSP, April 2008.
15. I. Hadj Kacem, N. Sellami, A. Roumy, I. Fijalkow. Training sequence optimization for frequency selective channels with MAP equalization. In IEEE International Symposium on Communications, Control and Signal Processing ISCCSP, Pages 532-537, Malta, March 2008.
16. O. Dabeer, A. Roumy, C. Guillemot. Linear Transceivers for Sending Correlated Sources Over the Gaussian MAC. In National Communication Conference, 2007.
17. A. Roumy, K. Lajnef, C. Guillemot. Rate-adaptive turbo-syndrome scheme for Slepian-Wolf Coding. In 41st Asilomar Conference on Signals, Systems and Computers, Pacific Grove, CA, November 2007.
18. S. Chaabouni, N. Sellami, A. Roumy. The Impact of a priori information on the MAP equalizer performance with M-PSK modulation. In Proc.of 15th European Signal Processing conference, EUSIPCO, Poznan, Poland, September 2007.
19. A. Roumy, D. Gesbert. Optimal matching in wireless sensor networks. In IEEE International Symposium on Information Theory, June 2007.
20. T. Banerjee, A.A. Kherani, M. Debbah, A. Roumy. Impact of Physical Layer Design on the Deployment of a Sensor Network with Correlated Observations. In IEEE International Workshop on Signal Processing Advances for Wireless Communications, Helsinki, Finland, June 2007.
21. N. Sellami, M. Siala, A. Roumy, I. Kammoun. Generalized MAP: sequence detection for non ideal frequency selective channel knowledge. In Proc.of ICASSP, IEEE Int. Conference on Acoustics, Speech and Signal Processing, Honolulu, USA, April 2007.
22. O. Dabeer, A. Roumy, C. Guillemot. Optimal Distributed Linear Transceivers for Sending Independently Corrupted Copies of a Colored Source Over the Gaussian MAC. In Proc.of ICASSP, IEEE Int. Conference on Acoustics, Speech and Signal Processing, Honolulu, USA, April 2007.
23. S. Chaabouni, N. Sellami, A. Roumy. Lower bounds on the performance of the MAP equalizer with a priori over MIMO systems. In Proc.of ISSPA, International Symposium on Signal Processing and its Applications, Sharjah, UAE, February 2007.
24. N. Sellami, A. Roumy, I. Fijalkow. Convergence analysis of the MAP turbo detector: New representation and convergence to the AWGN case. In Proc.of 14th European Signal Processing conference, EUSIPCO, September 2006.
25. V. Ramon, A. Roumy, C. Herzet, L. Vandendorpe. Calculating the performance degradation of a MMSE/IC turbo-equalization scheme due to SNR estimation errors. In IEEE International Conference on Communications (ICC 2006), June 2006.
26. R. Gaudel, F. Bonnet, J.B. Domelevo-Entfellner, A. Roumy. Noise variance estimation in DS-CDMA and its effects on the individually optimum receiver. In IEEE International Workshop on Signal Processing Advances for Wireless Communications, SPAWC 2006, June 2006.
27. N. Sellami, A. Roumy, I. Fijalkow. Impact de l'a priori sur les performances de l'égaliseur MAP et distribution des LRV extrinsèques. In Proc.of 20th GRETSI Symposium on Signal and Image Processing, September 2005.
28. N. Sellami, A. Roumy, I. Fijalkow. Performance analysis of the MAP equalizer with a priori and distribution of the extrinsic LLRs. In IEEE International Workshop on Signal Processing Advances for Wireless Communications, SPAWC 2005, June 2005.
29. N. Sellami, A. Roumy, I. Fijalkow. Performance analysis of the MAP equalizer within an iterative receiver including a channel estimator. In IEEE Vehicular Technology Conference, VTC'F04, September 2004.
30. M. Koca, E. Fabre, A. Roumy. Turbo Decoding of multiple descriptions with quantized frame expansions. In International Symposium on Image/Video Communications over fixed and mobile networks, ISIVC'04, July 2004.
31. N. Sellami, A. Roumy, I. Fijalkow. On the analysis of the MAP equalizer performance within an iterative receiver. In IEEE International Workshop on Signal Processing Advances for Wireless Communications, SPAWC 2004, July 2004.
32. A. Roumy, D. Declercq, E. Fabre. Low Complexity Code Design for the 2-user Gaussian Multiple Access Channel. In Proc. of ISIT, IEEE Int. Conference on Information Theory, June 2004.
33. A. Roumy, S. Guemghar, G. Caire, S. Verdu. Design Methods for Irregular Repeat Accumulate Codes. In Proc.of ISIT, IEEE Int. Conference on Information Theory, Yokohama, JAPAN, June 2003.
34. G. Caire, S. Guemghar, A. Roumy, S. Verdu. Design approaches for LDPC-encoded CDMA. In Proc.of 39th Annual Allerton Conference on Commun, Control and Computing, Monticello, IL, USA, October 2001.
35. A. Roumy, I. Fijalkow, D. Pirez. Turbo-equalization- Convergence Analysis. In Proc.of Gretsi, 18th Symposium on Signal and Image processing, Toulouse, France, September 2001.
36. A. Roumy, A.J. Grant, I. Fijalkow, P.D. Alexander, D. Pirez. Convergence Analysis for Turbo-equalization. In Proc.of ISIT, IEEE Int. Conference on Information Theory, Washington, DC, USA, June 2001.
37. A. Roumy, A.J. Grant, I. Fijalkow, P.D. Alexander, D. Pirez. Turbo-equalization- Convergence Analysis. In Proc.of ICASSP, IEEE Int. Conference on Acoustics, Speech and Signal Processing, Salt Lake City, USA, May 2001.
38. A. Roumy, I. Fijalkow, D. Pirez. Full Turbo receiver for coded asynchronous DS-CDMA over multipath channel. In Proc.of IEEE 2nd International Symposium on Turbo-codes & Related Topics, Brest, France, September 2000.
39. A. Roumy, I. Fijalkow, D. Pirez. Turbo multiuser detection for coded asynchronous DS-CDMA over frequency selective channels. In Proc.of ISSSTA'00, IEEE Sixth International Symposium on Spread Spectrum Techniques & Applications, Pages 608-612, New Jersey, USA, September 2000.
40. I. Fijalkow, A. Roumy, S. Ronger, D. Pirez, P. Vila. Improved Interference cancellation for Turbo-equalization. In Proc.of ICASSP, IEEE Int. Conference on Acoustics, Speech and Signal Processing, Turkey, June 2000.
41. A. Roumy, I. Fijalkow, D. Pirez. Iterative Multi-user algorithm for convolutionnally coded asynchronous DS-CDMA systems- Turbo-CDMA. In Proc.of ICASSP, IEEE Int. Conference on Acoustics, Speech and Signal Processing, Turkey, June 2000.
42. A. Roumy, I. Fijalkow, D. Pirez. Joint Equalization and Decoding: why choose the iterative solution?. In Proc.of VTC, IEEE 50th Vehicular Technology Conference, Pages 2989-2993, Amsterdam, The Netherlands, September 1999.
43. A. Roumy, I. Fijalkow, D. Pirez, P. Duvaut. Quelques aspects de la Turbo-égalisation. In Proc.of Gretsi, 17th Symposium on Signal and Image processing, Pages 801-804, Vannes, France, September 1999.

Patents

1. A. Roumy, D. Pirez, I. Fijalkow. Procédé et récepteur pour demoduler des signaux provenant de multi-utilisateurs. Patent, September 2000.
2. A. Roumy, D. Pirez, I. Fijalkow. Procédé et récepteur pour ordonner des signaux provenant de multi-utilisateurs. Patent, September 2000.

Thesis

1. A. Roumy. Egalisation et décodage conjoints : méthodes Turbo. PhD Thesis Université de Cergy-Pontoise, October 2000.

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Teaching

• Information theory: Spring 12 - course Howework1 Howework2 Howework3
• Reading Group: Fall 11/Spring 12 - Machine learning

Useful links