prof. Ing. Zbyněk Koldovský, Ph.D.

prof. Ing. Zbyněk Koldovský, Ph.D. QR VCARD
LinePositionDepartmentOffice number
+420 48535 3534EmployeeInstitute of Information Technology and ElectronicsA 01015

Publications

  1. D. Fejgin, E. Hadad, S. Gannot, Z. Koldovský, S. Doclo, Comparison of Frequency-Fusion Mechanisms For Binaural Direction-of-Arrival Estimation for Multiple Speakers, IEEE International Conference on Audio, Speech, and Signal Processing, Seoul, IEEE, ISBN: 979-835034485-1, p. 731-735, 5 pages, ISSN: 15206149, [Online], 2024
  2. V. Kautský, Z. Koldovský, T. Adali, Double Nonstationarity: Blind Extraction of Independent Nonstationary Vector/Component from Nonstationary Mixtures — Performance Analysis, IEEE Transactions on Signal Processing, IEEE, p. 3228 - 3241, 14 pages, ISSN: 1053-587X, n. 1, [Online], 2024
  3. Z. Koldovský, J. Málek, J. Čmejla, S. O‘Regan, Informed FastICA: Semi-Blind Minimum Variance Distortionless Beamformer, The 18th International Workshop on Acoustic Signal Enhancement (IWAENC 2024), IEEE, Eurasip, ISBN: 979-835036185-8, p. 95-99, 5 pages, [Online], 2024
  4. J. Čmejla, Z. Koldovský, V. Kautský, T. Adali, Dynamic Independent Component Extraction with Blending Mixing Vector: Lower Bound on Mean Interference-to-Signal Ratio, IEEE International Conference on Audio, Speech and Signal Processing, Rhodes Island, IEEE, 5 pages, ISSN: 15206149, [Online], 2023
  5. Z. Koldovský, J. Čmejla, T. Adali, S. O‘Regan, Independent Vector Extraction Constrained on Manifold of Half-Length Filters, European Signal Processing Conference, ISBN: 978-946459360-0, 5 pages, ISSN: 22195491, [Online], 2023
  6. J. Janský, Z. Koldovský, J. Málek, T. Kounovský, J. Čmejla, Auxiliary Function-Based Algorithm for Blind Extraction of a Moving Speaker, EURASIP JOURNAL ON AUDIO SPEECH AND MUSIC PROCESSING, Springer, 16 pages, ISSN: 1687-4722, n. 1, [Online], 2022
  7. J. Málek, J. Čmejla, Z. Koldovský, Blind Extraction of Target Speech Source: Three ways of Guidance Exploiting Supervised Speaker Embeddings, International Workshop on Acoustic Signal Enhancement, IEEE, ISBN: 978-166546867-1, 5 pages, [Online], 2022
  8. Z. Koldovský, V. Kautský, P. Tichavský, Double Nonstationarity: Blind Extraction of Independent Nonstationary Vector/Component from Nonstationary Mixtures - Algorithms, IEEE Transactions on Signal Processing, IEEE, p. 5102 - 5116, 15 pages, ISSN: 1053-587X, n. 1, [Online], 2022
  9. T. Haubner, W. Kellerman, Z. Koldovský, Joint Acoustic Echo Cancellation And Blind Source Extraction Based On Independent Vector Extraction, International Workshop on Acoustic Signal Enhancement, IWAENC 2022 - Proceedings, IEEE, ISBN: 978-166546867-1, 5 pages, [Online], 2022
  10. J. Málek, J. Janský, Z. Koldovský, T. Kounovský, J. Čmejla, J. Žďánský, Target Speech Extraction: Independent Vector Extraction Guided by Supervised Speaker Identification, IEEE-ACM TRANSACTIONS ON AUDIO SPEECH AND LANGUAGE PROCESSING, IEEE, p. 2295-2309, 15 pages, ISSN: 2329-9290, n. 30, [Online], 2022
  11. J. Čmejla, T. Kounovský, J. Janský, J. Málek, M. Rozkovec, Z. Koldovský, Advanced semi-blind speaker extraction and tracking implemented in experimental device with revolving dense microphone array, Proceedings of the Annual Conference of the International Speech Communication Association, INTERSPEECH, Czech Republic, International Speech Communication Association, 1, ISBN: 978-171383690-2, p. 2152-2153, 2 pages, ISSN: 2308-457X, [Online], 2021
  12. Z. Koldovský, V. Kautský, T. Kounovský, J. Čmejla, Algorithm for Independent Vector Extraction Based on Semi-Time-Variant Mixing Model, European Signal Processing Conference, Dublin, Ireland, Eurasip, 1, ISBN: 978-908279706-0, p. 865 - 869, 4 pages, ISSN: 2219-5491, [Online], 2021
  13. J. Málek, J. Janský, T. Kounovský, Z. Koldovský, J. Žďánský, Blind extraction of moving audio source in a challenging environment supported by speaker identification via X-vectors, ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, USA, IEEE, 1, p. 226-230, 5 pages, ISSN: 1520-6149, [Online], 2021
  14. N. Amor, J. Čmejla, V. Kautský, Z. Koldovský, T. Kounovský, Blind Extraction of Moving Sources via Independent Component and Vector Analysis: Examples, ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, USA, IEEE, 1, p. 3725-3729, 5 pages, ISSN: 1520-6149, [Online], 2021
  15. Z. Koldovský, S. Gannot, Dictionary-Based Sparse Reconstruction of Incomplete Relative Transfer Functions, European Signal Processing Conference (EUSIPCO 2021), Ireland, Eurasip, 1, ISBN: 978-908279706-0, p. 1005-1009, 4 pages, ISSN: 2219-5491, [Online], 2021
  16. Z. Koldovský, V. Kautský, P. Tichavský, J. Čmejla, J. Málek, Dynamic Independent Component/Vector Analysis: Time-Variant Linear Mixtures Separable by Time-Invariant Beamformers, IEEE Transactions on Signal Processing, USA, IEEE, 1, p. 2158-2173, 16 pages, ISSN: 1053-587X, [Online], 2021
  17. J. Čmejla, T. Kounovský, S. Gannot, Z. Koldovský, P. Tandeitnik, MIRaGe: Multichannel Database of Room Impulse Responses Measured on High-Resolution Cube-Shaped Grid, European Signal Processing Conference (EUSIPCO 2020), Netherlands, 1, ISBN: 9789082797053, p. 56-60, 5 pages, ISSN: 2219-5491, [Online], 2021
  18. A. Sofer, T. Kounovský, J. Čmejla, Z. Koldovský, S. Gannot, Robust Relative Transfer Function Identification on Manifolds for Speech Enhancement, European Signal Processing Conference (EUSIPCO 2020), Ireland, Eurasip, 1, ISBN: 978-908279706-0, p. 401-405, 4 pages, ISSN: 2219-5491, [Online], 2021
  19. J. Janský, J. Málek, J. Čmejla, T. Kounovský, Z. Koldovský, J. Žďánský, Adaptive blind audio source extraction supervised by dominant speaker identification using x-vectors, ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, Barcelona, IEEE, 1, ISBN: 978-1-5090-6631-5, p. 676-680, 5 pages, ISSN: 1520-6149, [Online], 2020
  20. J. Málek, Z. Koldovský, M. Boháč, Block-online Multi-channel Speech Enhancement Using Deep Neural Network-supported Relative Transfer Function Estimates, IET Signal Processing, Stevenage, Institution of Engineering and Technology, 1, p. 124-133, 10 pages, ISSN: 1751-9675, n. 3, [Online], 2020
  21. V. Kautský, Z. Koldovský, P. Tichavský, V. Zarzoso, Cramér-Rao Bounds for Complex-Valued Independent Component Extraction: Determined and Piecewise Determined Mixing Models, IEEE Transactions on Signal Processing, IEEE, 1, p. 5230-5243, 14 pages, ISSN: 1053-587X, n. 2020, [Online], 2020
  22. V. Kautský, P. Tichavský, Z. Koldovský, T. Adali, Performance Bounds for Complex-Valued Independent Vector Analysis, IEEE Transactions on Signal Processing, IEEE, 1, p. 4258-4267, 10 pages, ISSN: 1053-587X, n. 2020, [Online], 2020
  23. Z. Koldovský, J. Málek, J. Janský, Extraction of Independent Vector Component from Underdetermined Mixtures through Block-Wise Determined Modeling, ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, Brighton, England, IEEE, 1, ISBN: 978-1-4799-8131-1, p. 7903-7907, 5 pages, ISSN: 1520-6149, [Online], 2019
  24. Z. Koldovský, P. Tichavský, Gradient Algorithms for Complex Non-Gaussian Independent Component/Vector Extraction, Question of Convergence, IEEE Transactions on Signal Processing, IEEE, 1, p. 1050-1064, 15 pages, ISSN: 1053-587X, n. 4, [Online], 2019
  25. V. Kautský, Z. Koldovský, P. Tichavský, Performance Bound for Blind Extraction of Non-Gaussian Complex-Valued Vector Component from Gaussian Background, ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, Brighton, England, IEEE, 1, ISBN: 978-1-4799-8131-1, p. 5287-5291, 5 pages, ISSN: 1520-6149, [Online], 2019
  26. J. Janský, Z. Koldovský, Blind Source Separation Using Incomplete De-Mixing Transform with a Precise Approach for Selecting Constrained Sets of Frequencies, The 16th International Workshop on Acoustic Signal Enhancement (IWAENC 2018), 1, ISBN: 978-1-5386-8151-0, p. 236-240, 5 pages, [Online], 2018
  27. H. Sawada, Z. Koldovský, Independent component and vector analysis, Audio Source Separation and Speech Enhancement, Spojené státy americké, Wiley, 1, ISBN: 978-1-119-27989-1, p. 263-288, 26 pages, [Online], 2018
  28. J. Čmejla, T. Kounovský, J. Málek, Z. Koldovský, Independent Vector Analysis Exploiting Pre-Learned Banks of Relative Transfer Functions for Assumed Target’s Positions, Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) - The 14th International Conference on Latent Variable Analysis and Signal Separation (LVA/ICA 2018), 1, ISBN: 9783319937632, p. 270-279, 10 pages, ISSN: 0302-9743, [Online], 2018
  29. J. Čmejla, Z. Koldovský, Multi-Channel Speech Enhancement Based on Independent Vector Extraction, The 16th International Workshop on Acoustic Signal Enhancement (IWAENC 2018), 1, ISBN: 978-1-5386-8151-0, p. 525-529, 5 pages, [Online], 2018
  30. Z. Koldovský, P. Tichavský, N. Ono, Orthogonally-Constrained Extraction of Independent Non-Gaussian Component from Non-Gaussian Background without ICA, Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) - 14th International Conference on Latent Variable Analysis and Signal Separation, LVA/ICA 2018, Velká Británie, 1, ISBN: 9783319937632, p. 161-170, 10 pages, ISSN: 0302-9743, [Online], 2018
  31. T. Kounovský, Z. Koldovský, J. Čmejla, Recursive and Partially Supervised Algorithms for Speech Enhancement on the Basis of Independent Vector Extraction, The 16th International Workshop on Acoustic Signal Enhancement (IWAENC 2018), 1, ISBN: 978-1-5386-8151-0, p. 401-405, 5 pages, [Online], 2018
  32. O. Šembera, P. Tichavský, Z. Koldovský, Adaptive Blind Separation of Instantaneous Linear Mixtures of Independent Sources, Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), Grenoble, France, Springer Verlag, 1, ISBN: 9783319535463, p. 172-181, 10 pages, ISSN: 0302-9743, [Online], 2017
  33. F. Nesta, S. Mosayyebpour, Z. Koldovský, K. Paleček, Audio/Video Supervised Independent Vector Analysis through multimodal pilot dependent components, European Signal Processing Conference 2017, Kos, Greece, 1, ISBN: 978-0-9928626-7-1, p. 1190-1194, 5 pages, [Online], 2017
  34. V. Kaucký, Z. Koldovský, P. Tichavský, Cramér-Rao-Induced Bound for Interference-to-Signal Ratio Achievable Through Non-Gaussian Independent Component Extraction, 2017 IEEE 7TH INTERNATIONAL WORKSHOP ON COMPUTATIONAL ADVANCES IN MULTI-SENSOR ADAPTIVE PROCESSING (CAMSAP), Curaçao, Dutch Antilles, 1, ISBN: 978-1-5386-1251-4, p. 1-5, 5 pages, [Online], 2017
  35. P. Rajmic, Z. Koldovský, M. Daňková, Fast Reconstruction of Sparse Relative Impulse Responses via Second-Order Cone Programming, IEEE Workshop on Applications of Signal Processing to Audio and Acoustics, New Paltz, NY, USA, Institute of Electrical and Electronics Engineers Inc., 1, ISBN: 978-1-5386-1632-1, p. 364-368, 5 pages, [Online], 2017
  36. J. Janský, M. Boháč, Z. Koldovský, M. Müller, Linear acoustic echo cancellation using deep neural networks and convex reconstruction of incomplete transfer function, Proceedings of the 2017 IEEE International Workshop of Electronics, Control, Measurement, Signals and their Application to Mechatronics, ECMSM 2017, Donostia, San Sebastian, Spain, Institute of Electrical and Electronics Engineers Inc., 1, ISBN: 978-1-5090-5582-1, p. 1-6, 6 pages, [Online], 2017
  37. Z. Koldovský, P. Tichavský, V. Kaucký, Orthogonally Constrained Independent Component Extraction: A Blind Minimum Power Distortionless Beamformer, 25th European Signal Processing Conference, EUSIPCO 2017, Kos, Greece, Institute of Electrical and Electronics Engineers Inc., 1, ISBN: 978-0-9928626-7-1, p. 1155-1159, 5 pages, [Online], 2017
  38. Z. Koldovský, F. Nesta, Performance Analysis of Source Image Estimators in Blind Source Separation, IEEE Transactions on Signal Processing, Institute of Electrical and Electronics Engineers (IEEE), 1, p. 4166-4176, 11 pages, ISSN: 1053-587X, n. 16, [Online], 2017
  39. F. Nesta, Z. Koldovský, Supervised Independent Vector Analysis Through Pilot Dependent Components, IEEE International Conference on Audio, Speech, and Signal Processing 2017, New Orleans, USA, 1, ISBN: 978-1-5090-4117-6, p. 536-540, 5 pages, ISSN: 1520-6149, [Online], 2017
  40. J. Janský, Z. Koldovský, N. Ono, A computationally cheaper method for blind speech separation based on auxiva and incomplete demixing transform, 2016 International Workshop on Acoustic Signal Enhancement, IWAENC 2016, Xi’an, China, Institute of Electrical and Electronics Engineers Inc., ISBN: 978-1-5090-2007-2, 5 pages, [Online], 2016
  41. K. Steiger, P. Mokrý, J. Václavík, P. Psota, R. Doleček, D. Vápenka, J. Nečásek, Z. Koldovský, Adaptive acoustic metasurfaces for the active sound field control, Proceedings of the 22nd International Congress on Acoustics, Buenos Aires, Asociación de Acústicos Argentinos, 1, ISBN: 978-987-24713-6-1, p. 1-10, 10 pages, [Online], 2016
  42. Z. Koldovský, F. Nesta, Approximate MVDR and MMSE beamformers exploiting scale-invariant reconstruction of signals on microphones, 2016 International Workshop on Acoustic Signal Enhancement, IWAENC 2016, Xi’an, China, Institute of Electrical and Electronics Engineers Inc., ISBN: 978-1-5090-2007-2, 5 pages, [Online], 2016
  43. O. Šembera, P. Tichavský, Z. Koldovský, Blind separation of underdetermined linear mixtures based on source nonstationarity and AR(1) modeling, ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings, Shanghai, China, Institute of Electrical and Electronics Engineers Inc., ISBN: 978-1-4799-9988-0, p. 4323-4327, 5 pages, ISSN: 1520-6149, [Online], 2016
  44. Z. Koldovský, J. Málek, M. Boháč, J. Janský, CHiME4: Multichannel Enhancement Using Beamforming Driven by a DNN-based Voice Activity Detector, The 4th International Workshop on Speech Processing in Everyday Environments, ISBN: 978-2-9557814-0-1, 5 pages, 2016
  45. Z. Koldovský, F. Nesta, P. Tichavský, N. Ono, Frequency-domain blind speech separation using incomplete de-mixing transform, European Signal Processing Conference, Budapest, Hungary, European Signal Processing Conference, EUSIPCO, ISBN: 978-0-9928626-5-7, p. 1663-1667, 5 pages, ISSN: 2076-1465, [Online], 2016
  46. J. Málek, Z. Koldovský, Hammerstein model-based nonlinear ECHO cancelation using a cascade of neural network and adaptive linear filter, 2016 International Workshop on Acoustic Signal Enhancement, IWAENC 2016, Xi’an, China, Institute of Electrical and Electronics Engineers Inc., ISBN: 978-1-5090-2007-2, 5 pages, [Online], 2016
  47. Z. Koldovský, A. Yeredor, E. Vincent, 12th International Conference on Latent Variable Analysis and Signal Separation, LVA/ICA 2015, [Online], 2015
  48. Z. Koldovský, J. Janský, F. Nesta, A local model of relative transfer functions involving sparsity, 12th International Conference on Latent Variable Analysis and Signal Separation, LVA/ICA 2015, Liberec, Czech Republic, Springer Verlag, 1, ISBN: 978-3-319-22481-7, p. 219-226, 8 pages, ISSN: 0302-9743, [Online], 2015
  49. J. Málek, J. Silovský, P. Červa, Z. Koldovský, J. Nouza, J. Žďánský, Compensation of Nonlinear Distortions in Speech for Automatic Recognition, 38th International Conference on Telecommunications and Signal Processing, TSP 2015, Praha, Česká Republika, Institute of Electrical and Electronics Engineers Inc., 1, ISBN: 978-1-4799-8498-5, p. 419-423, 5 pages, 2015
  50. Z. Koldovský, J. Málek, P. Tichavský, Improving relative transfer function estimates using second-order cone programming, 12th International Conference on Latent Variable Analysis and Signal Separation, LVA/ICA 2015, Liberec, Czech Republic, Springer Verlag, 1, ISBN: 978-3-319-22481-7, p. 227-234, 8 pages, [Online], 2015
  51. J. Málek, Z. Koldovský, Nonlinear echo cancellation using generalized power filters, IEEE International Workshop of Electronics, Control, Measurement, Signals and their Application to Mechatronics, ECMSM 2015, Liberec; Czech Republic, Institute of Electrical and Electronics Engineers Inc., 1, ISBN: 978-1-4799-6972-2, p. neuvedeno, 4 pages, [Online], 2015
  52. Z. Koldovský, F. Nesta, T. Thormundsson, On-line multichannel estimation of source spectral dominance, 12th International Conference on Latent Variable Analysis and Signal Separation, LVA/ICA 2015, Liberec, Czech Republic, Springer Verlag, 1, ISBN: 978-3-319-22481-7, p. 404-412, 9 pages, [Online], 2015
  53. Z. Koldovský, P. Tichavský, Sparse Reconstruction of Incomplete Relative Transfer Function: Discrete and Continuous Time Domain, Signal Processing Conference (EUSIPCO), 2015 23rd European, Nice, France, IEEE, 1, ISBN: 978-099286263-3, p. 394-398, 5 pages, [Online], 2015
  54. Z. Koldovský, J. Málek, S. Gannot, Spatial source subtraction based on incomplete measurements of relative transfer function, IEEE-ACM TRANSACTIONS ON AUDIO SPEECH AND LANGUAGE PROCESSING, Institute of Electrical and Electronics Engineers Inc., 1, p. 1335-1347, 13 pages, ISSN: 2329-9290, [Online], 2015
  55. Z. Koldovský, P. Tichavský, Způsob potlačení šumu a zvýraznění řečového signálu pro mobilní telefon se dvěma nebo více mikrofony, 2014