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Radu Ciprian Bilcu

Member of Research Staff, Multimodal Sensing and Context
NRC Tampere

Background

I have obtained the BSc and MSc degrees in Electronics from Technical University of Cluj-Napoca Romania in 1995 and 1996 respectively. From 1999 to 2004 I have been a researcher at Tampere University of Technology where I have obtained the DrTech degree in 2004. I joined Nokia Research Center in March 2004. Located at the Nokia Tampere (Finland) facility, I am conducting research in the field of image processing and multimodal sensing.

Professional Activities

Work History:
  • March 2004 -

    • Member of Research Staff - Nokia Research Center, Tampere, Finland

  • July 1999 - March 2004

    • Researcher and PhD student at Tampere University of Technology, Tampere, Finland.

  • September 1998 - June 2003

    • Assistant at Basis of Electronics Laboratory from Technical University of Cluj-Napoca, Romania.

  • April 1997 - June 1999

    • Electronics Engineer at SC AMIC Ltd, Cluj-Napoca, Romania.

    Research Interests

    1. Image processing:
      1. Image restoration: de-noising, sharpening, de-blurring;
      2. Color image processing: color and intensity correction, contrast enhancement, high dynamic range;
      3. Image quality assesment;
    2. Sensory data processing.
    3. Adaptive systems and algorithms:
      1. Time domain LMS adaptive algorithms;
      2. Transform domain LMS adaptive algorithms;
      3. Non-linear and order statistics adaptive filters;
      4. Application of adaptive filters to: image, audio and speech processing, communications, echo cancelation, active noise control;
    4. Neural networks and applications.

    Publications

    Thesis:

    1. Radu Ciprian Bilcu - On Adaptive Least Mean Square FIR Filters: New Implementations and Applications - DrTech (Doctor of Technology) Thesis, Tampere University of Technology, Institute of Signal Processing, 23 June 2004;

    In journals:

    1. Dmitriy Paliy, Vladimir Katkovnik, Radu Ciprian Bilcu, Sakari Alenius, Karen Egiazarian - Spatially Adaptive Color Filter Array Interpolation for Noiseless and Noisy Data, in International Journal of Imaging Systems and Technology, Special Issue on Applied Color Image Processing, 2007.
    2. Radu Ciprian Bilcu, Pauli Kuosmanen, Karen Egiazarian - On Length Adaptation for the Least Mean Square Adaptive Filters, in Elsevier Signal Processing journal, Vol. 86, Issue 10, October 2006, pp: 3089-3094.
    3. Radu Ciprian Bilcu, Markku Vehvilainen - Modified Non-Local Averaging for Image De-Noising, in WSEAS Transactions on Circuits and Systems, Issue 7, Vol. 5, July, 2006, pp: 946-952.
    4. Radu Ciprian Bilcu, Markku Vehvilainen - A new Image De-noising Technique Based on Image Decomposition and Sigma Filtering, in WSEAS Transactions on Communications, Vol. 4, Issue 8, August, 2005, pp: 579-586.
    5. Radu Ciprian Bilcu, Mejdi Trimeche, Sakari Alenius, Markku Vehvilainen - Regularized Iterative Image Restoration in the Blur Space, in WSEAS Transactions on Communications, Vol. 4, Issue 7, July, 2005, pp: 407-416.
    6. Karen Egiazarian, Pauli Kuosmanen, Radu Ciprian Bilcu - Variable Ste-size LMS Adaptive Filters for CDMA Multiuser Detection - in Facta Universitatis (Nis), Series: Electronics Engineering, Vol. 17, April 2004, pp: 21-32.
    7. Radu Ciprian Bilcu, Pauli Kuosmanen , Karen Egiazarian - Channel Equalization Using a new Transform Domain LMS Algorithm with Adaptive Step-size, in WSEAS Transactions on Circuits, Vol. 1, Issue 1, 2002, pp:113-118.
    8. Radu Ciprian Bilcu, Pauli Kuosmanen, Karen Egiazarian - A Transform Domain LMS Adaptive Filter with Variable Step-size, in IEEE Signal Processing Letters, Vol. 9, No. 2, pp:51-53.

    In conferences:

    1. Radu Ciprian Bilcu, Markku Vehvilainen – Combined Non-local Averaging and Intersection of the Confidence Intervals for Image De-noising, in Proceedings of the IEEE Int. Conf. on Image Proc., ICIP2008, Sand Diego, California, USA, October 2008.
    2. Radu Ciprian Bilcu, Adrian Burian, Aleksi Knuutila, Markku Vehvilainen – High Dynamic Range Imaging on Mobile devices, in Proceedings of IEEE Inte. Conf. on Electronics, Circ. and Syst., ICECS 2008, Malta, September 2008.
    3. Radu Ciprian Bilcu, Markku Vehvilainen - Constrained Unsharp Masking for Image Enhancement, in Proceedings of Int. Conf. on Image and Sig. Proc., ICISP2008, Cherbourg-Octeville, France, July 1-3, 2008.
    4. Radu Ciprian Bilcu, Markku Vehvilainen - A Novel Tone Mapping Method for Image Contrast Enhancement in Proceedings of the IEEE Int. Symp. on Image and Signal Proc. and Analysis, ISPA2007, Istanbul, Turkey, September 2007.
    5. Radu Ciprian Bilcu, Markku Vehvilainen - Robust Intensity-Pair Distribution for image Contrast Enhancement, in Proceedings of the IEEE Int. Conf. on Multimedia and Expo, ICME2007, Beijing, China, July 2007.
    6. Radu Ciprian Bilcu, Markku Vehvilainen - A novel decomposition scheme for image de-noising, in Proceedings of the IEEE Int. Conf. on Acoustics, Speech and Signal Proc., ICASSP2007, Hawaii, USA, April 2007.
    7. Radu Ciprian Bilcu, Markku Vehvilainen - Landweber image restoration with adaptive step-size, in Proceedings of the 9th IEEE, EURASIP International Symposium on Signal Processing and its Applications ISSPA2007, Sharjah, February 12-15, 2007.
    8. Radu Ciprian Bilcu, Markku Vehvilainen - A practical approach for image quality assesment, in Proceedings of the 9th IEEE, EURASIP International Symposium on Signal Processing and its Applications ISSPA2007, Sharjah, February 12-15, 2007.
    9. Radu Ciprian Bilcu, Markku Vehvilainen - Fast nonlocal means for image de-noising, in Proceedings of IS\&T/SPIE Symposium on Electronic Imaging, Digital Photography III Conference, San Jose, California USA, 28 January - 1 February 2007.
    10. Radu Ciprian Bilcu, Adrian Burian, Markku Vehvilainen - Iterative Image Restoration for Data Forms Detection, in Proceedings of the 13th International Conference on Systems, Signals and Image Processing, Budapest, Hungary, September 21-23, 2006.
    11. Radu Ciprian Bilcu, Markku Vehvilainen - Image De-noising Using a Fast Non-local Averaging Algorithm, in Proceedings of 10th WSEAS Circuits, Systems, Communications and Computers WSEAS/CSCC multiconference, Vouliagmeni, Athens, Greece, July 11-16, 2006.
    12. Radu Ciprian Bilcu, Markku Vehvilainen - Nonlinear Non-Local Averaging for Image De-noising, in Proceedings of the Nordic Signal Processing Workshop NORSIG2006, Reikjavik, Iceland, June 7-9, 2006.
    13. Alessandro Foi, Radu Ciprian Bilcu, Vladimir Katkovnik, Karen Egiazarian - Adaptive-Size Block Transforms for Signal-Dependent Noise Removal, in Proceedings of the Nordic Signal Processing Workshop NORSIG2006, Reikjavik, Iceland, June 7-9, 2006.
    14. Radu Ciprian Bilcu, Adrian Burian, Markku Vehvilainen - Image Pre-processing for Bar Code Detection in Mobile Devices, in Proceedings of IEEE International Conference on Acoustics, Speech and Signal Processing ICASSP2006, Toulouse, France, May 14-19, 2006.
    15. Alessandro Foi, Radu Ciprian Bilcu, Vladimir Katkovnik, Karen Egiazarian - Anisotropic Local Approximations for Pointwise Adaptive Signal-Dependent Noise Removal , in Proceedings of the 13th European Signal Processing Conference EUSIPCO2005, Antalya, Turkey, September 4-8, 2005.
    16. Radu Ciprian Bilcu, Markku Vehvilainen - A Modified Sigma Filter for Noise Reduction in Images, in Proceedings of the 9th WSEAS Circuits, Systems, Communications and Computers multiconference, WSEAS/CSCC2005, Vouliagmeni, Athens, Greece, July 11-16, 2005.
    17. Radu Ciprian Bilcu, Mejdi trimeche, Sakari Alenius, Markku Vehvilainen - Blur Space Iterative De-blurring, in Proceedings of the 9th WSEAS Circuits, Systems, Communications and Computers multiconference, WSEAS/CSCC2005, Vouliagmeni, Athens, Greece, July 11-16, 2005.
    18. Radu Ciprian Bilcu, Markku Vehvilainen - A New Method for Noise Estimation in Images, in Proceedings of the IEEE EURASIP International Workshop on Nonlinear Signal and Image Processing, NSIP2005, Sapporo, Japan, May 18-20, 2005.
    19. Radu Ciprian Bilcu, Pauli Kuosmanen, Karen Egiazarian - On Adaptive Interpolated FIR Filters, in Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP2004, Montreal, Quebec, Canada, May 17-21, 2004.
    20. Karen Egiazarian, Pauli Kuosmanen, Radu Ciprian Bilcu - Variable Step-size LMS Adaptive Filters for CDMA Multiuser detection, in Proceedings of the 6th IEEE International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Servis´ces, TELSIKS 2003, Serbia and Montenegro, October 1-3, 2003.
    21. Radu Ciprian Bilcu, Pauli Kuosmanen, Karen Egiazarian - LMS Adaptive Filter with Optimum Step-Size for Tracking Time-Varying Channels, in Proceedings of the 3rd IEEE International Symposium on Image and Signal Processing and Analysis, ISPA 2003, Rome, Italy, September 18-20, 2003.
    22. Radu Ciprian Bilcu, Karen Egiazarian, Pauli Kuosmanen, Corneliu Rusu - Comparative Study Between Scrambling and Transform Domain Adaptive Filtering Techniques - in Proceedings of the 3rd International TICSP Workshop on Spectral methods and Multirate Signal Processing, SMMSP2003, Barcelona, Spain, September 13-14, 2003.
    23. Radu Ciprian Bilcu, Karen Egiazarian, Pauli Kuosmanen, Corneliu Rusu - An Adaptive Variable Length DCT Transform for Signal Denoising, in Proceedings of the 16th European Conference on Circuits Theory and Design, ECCTD 2003, Krakow, Poland, September 1-4, 2003.
    24. Radu Ciprian Bilcu, Pauli Kuosmanen, Karen ERgiazarian - Tracking Time-Varying Channels with Adaptive Step-Size Transform Domain LMS Algorithm, in Proceedings of the 7th WSEAS Circuits, Systems, Communications and Computers multiconference WSEAS/CSCC 2003, Corfu, Greece, July 7-10, 2003.
    25. Radu Ciprian Bilcu, Pauli Kuosmanen, karen Egiazarian - Adaptive Channel Equalization in Non-Gaussian Noise Environments, in Proceedings of the 5th IEEE International Conference and Exhibition on Digital Signal Processing and its Applications, DSPA 2003, Moskow, Russia, March 12-14, 2003.
    26. Radu Ciprian Bilcu, Pauli Kuosmanen, Karen Egiazarian - Noise Constrained LMS Algorithm in Transform Domain, in Proceedings of the 11th European Signal Processing Conference, EUSIPCO 2002, Toulouse, France, September 3-6, 2002.
    27. Radu Ciprian Bilcu, Pauli Kuosmanen, Karen Egiazarian - A New Variable Length LMS Algorithm: Theoretical Analysis and Implementations, in Proceedings of the 9th IEEE International Conference on Electronics, Circuits and Systems, ICECS 2002, Dubrovnik, Croatia, September 15-18, 2002.
    28. Radu Ciprian Bilcu, Pauli Kuosmanen, Karen Egiazarian - On Order Statistic Least Mean Square Algorithms, in Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2002, Orlando, Florida, USA, May 13-17, 2002.
    29. Radu Ciprian Bilcu, Pauli Kuosmanen, Karen Egiazarian - Time Domain and Transform Domain LMS Adaptive Filters with Variable Step-Size: An Overview, in Proceedings of International TICSP Workshop on Spectral Methods and Multirate Signal Processing, SMMSP 2002, Toulouse, France, September 7-8, 2002.
    30. Eniko Beatrice Bilcu, Jukka Saarinen, Radu Ciprian Bilcu, Pauli Kuosmanen - An Improved Variable Step LMS Algorithm, in Proceedings of WSEAS International Conference on Speech, Signal and Image Processing WSEAS/SSIP01, Malta, September 1-6, 2001.
    31. Radu Ciprian Bilcu, Pauli Kuosmanen, Karen Egiazarian - A new Variable Step LMS Algorithm for Transform Domain, in Proceedings of the 8th International Conference on Electronics, Circuits and Systems, ICECS2001, Malta, September 2-5, 2001.
    32. Radu Ciprian Bilcu, Pauli Kuosmanen, Karen Egiazarian - Length Adaptation for Transform Domain LMS Algorithm using Filter banks, in Proceedings of International TICSP Workshop on Spectral Methods and Multirate Signal Processing, SMMSP 2001, Pula, Croatia, June 16-18, 2001.
    33. Corneliu Rusu, Radu Ciprian Bilcu, Pauli Kuosmanen - Window Length for Median Quadratic Algorithms, in Proceedings of the IEEE-EURASIP Workshop on Nonlinear Signal Processing, NSIP 2001, Baltimore, Maryland, USA, June 3-6, 2001.
    34. Radu Ciprian Bilcu, Pauli Kuosmanen, Corneliu Rusu - A Novel Complementary Pair Variable Step LMS Algorithm, in Proceedings of Nordic Signal Processing Symposium, NORSIG 2000, Kolmarden, Sweden, June 13-15, 2000.
    35. Radu Ciprian Bilcu, Pauli Kuosmanen, Corneliu Rusu - Improving Performances of Complementary Pair LMS Algorithm, in Proceedings of X European Signal Processing Conference, EUSIPCO2000, Tampere, Finland, September 3-5, 2000.
    36. Radu Ciprian Bilcu, Pauli Kuosmanen, Corneliu Rusu - A Noise Constrained VS-LMS Algorithm, in Conference record of IEEE/AFCEA Information Systems for Enhanced Public Safety and Security, EUROCOMM2000.
    37. Radu Ciprian Bilcu - A Complementary LMS and LMF Algorithm, in Proceedings of the 5th International Workshop on Bases of Electronics, SBE'99, Cluj-Napoca, Romania, June 10-11, 1999.
    38. Radu Ciprian Bilcu, Corneliu Rusu - Matrix System pf Processing and Displaying of the Acoustic Signal, in Proceedings of International Symposium on Communications, COMMUNICATIONS'96, Bucharest, Romania, November 27-29, 1996.

    Patents

    6 granted patents and patent applications.