A new form of the Fourier transform for time-varying frequency estimation. - Vladimir Katkovnik (Signal Process., 1995)

Local polynomial periodograms for signals with the time-varying frequency and amplitude. - Vladimir Katkovnik (ICASSP, 1996)

Local polynomial approximation of the instantaneous frequency: Asymptotic accuracy. - Vladimir Katkovnik (Signal Process., 1996)

Signal Processing : Erratum to "Local polynomial approximation of the instantaneous frequency: Asymptotic accuracy" 52 (1996) 343-356. - Vladimir Katkovnik (Signal Process., 1997)

Nonparametric estimation of instantaneous frequency. - Vladimir Katkovnik (IEEE Trans. Inf. Theory, 1997)

On Multiple Window Local Polynomial Approximation with Varying Adaptive Bandwidths. - Vladimir Katkovnik (COMPSTAT, 1998)

On adaptive local polynomial approximation with varying bandwidth. - Vladimir Katkovnik (ICASSP, 1998)

Periodogram with varying and data-driven window length. - Vladimir Katkovnik; Ljubisa Stankovic (Signal Process., 1998)

Algorithm for the instantaneous frequency estimation using time-frequency distributions with adaptive window width. - Ljubisa Stankovic; Vladimir Katkovnik (IEEE Signal Process. Lett., 1998)

Discrete-time local polynomial approximation of the instantaneous frequency. - Vladimir Katkovnik (IEEE Trans. Signal Process., 1998)

Robust M-periodogram. - Vladimir Katkovnik (IEEE Trans. Signal Process., 1998)

Instantaneous frequency estimation using the Wigner distribution with varying and data-driven window length. - Vladimir Katkovnik; Ljubisa Stankovic (IEEE Trans. Signal Process., 1998)

Minimax lower bound for time-varying frequency estimation of harmonic signal. - Alexander V. Nazin; Vladimir Katkovnik (IEEE Trans. Signal Process., 1998)

Adaptive order and window length higher order time-frequency distributions in the IF estimation. - Ljubisa Stankovic; Vladimir Katkovnik; Igor Djurovic (ICECS, 1999)

Adaptive De-Noising of Images by Locally Switching Wavelet Transforms. - Hakan Öktem; Karen O. Egiazarian; Vladimir Katkovnik (ICIP (1), 1999)

Filtering heavy noised images using ICI rule for adaptive varying bandwidth selection. - Vladimir Katkovnik; Hakan Öktem; Karen O. Egiazarian (ISCAS (4), 1999)

Adaptively varying transform size selection by ICI rule for transform domain image denoising. - Hakan Öktem; Karen O. Egiazarian; Vladimir Katkovnik (NSIP, 1999)

Robust M-estimates of the frequency and amplitude of a complex-valued harmonic. - Vladimir Katkovnik (Signal Process., 1999)

A new method for varying adaptive bandwidth selection. - Vladimir Katkovnik (IEEE Trans. Signal Process., 1999)

The Wigner distribution of noisy signals with adaptive time-frequency varying window. - Ljubisa Stankovic; Vladimir Katkovnik (IEEE Trans. Signal Process., 1999)

Minimax robust M-beamforming for moving sources and impulse noise environment. - Vladimir Katkovnik (EUSIPCO, 2000)

Median filter with varying bandwidth adaptive to unknown smoothness of the signal. - Vladimir Katkovnik; Karen O. Egiazarian; Jaakko Astola (ISCAS, 2000)

Sensor array signal tracking using a data-driven window approach. - Alex B. Gershman; Ljubisa Stankovic; Vladimir Katkovnik (Signal Process., 2000)

Minimax lower bounds for nonparametric estimation of the instantaneous frequency- and time-varying amplitude of a harmonic signal. - Vladimir Katkovnik (Signal Process., 2000)

A new concept of adaptive beamforming for moving sources and impulse noise environment. - Vladimir Katkovnik (Signal Process., 2000)

A local polynomial approximation based beamforming for source localization and tracking in nonstationary environments. - Vladimir Katkovnik; Alex B. Gershman (IEEE Signal Process. Lett., 2000)

Instantaneous frequency estimation using higher order L-Wigner distributions with data-driven order and window length. - Ljubisa Stankovic; Vladimir Katkovnik (IEEE Trans. Inf. Theory, 2000)

Instantaneous frequency estimation based on the robust spectrogram. - Igor Djurovic; Vladimir Katkovnik; Ljubisa Stankovic (ICASSP, 2001)

Adaptive window size image denoising based on ICI rule. - Karen O. Egiazarian; Vladimir Katkovnik; Jaakko Astola (ICASSP, 2001)

Local adaptive transform based image denoising with varying window size. - Hakan Öktem; Karen O. Egiazarian; Vladimir Katkovnik; Jaakko Astola (ICIP (1), 2001)

Robust time-frequency distributions. - Vladimir Katkovnik; Igor Djurovic; Ljubisa Stankovic (ISSPA, 2001)

Localization and tracking of multiple moving sources based on local polynomial approximation of DOA. - Vladimir Katkovnik; Yong-Hoon Kim (ISSPA, 2001)

Median filter based realizations of the robust time-frequency distributions. - Igor Djurovic; Vladimir Katkovnik; Ljubisa Stankovic (Signal Process., 2001)

Adaptive Varying Window Size Filtering of Color Images Based on Intersection of Confidence Intervals Rule. - Vladimir Katkovnik; Karen O. Egiazarian; Jaakko Astola (CGIV, 2002)

High-resolution data-adaptive time-frequency analysis. - Vladimir Katkovnik; Ljubisa Stankovic (ICECS, 2002)

Adaptive varying-bandwidth modified nearest-neighborhood interpolation for denoising and edge detection. - Karen O. Egiazarian; Vladimir Katkovnik; Edisson Albán (Image Processing: Algorithms and Systems, 2002)

Adaptive varying-window-size image denoising using the ICI rule with median filters. - Karen O. Egiazarian; Vladimir Katkovnik; Juan L. Medina (Image Processing: Algorithms and Systems, 2002)

Adaptive Window Size Image De-noising Based on Intersection of Confidence Intervals (ICI) Rule. - Vladimir Katkovnik; Karen O. Egiazarian; Jaakko Astola (J. Math. Imaging Vis., 2002)

Kernel density estimation with adaptive varying window size. - Vladimir Katkovnik; Ilya Shmulevich (Pattern Recognit. Lett., 2002)

Adaptive LPA beamforming for moving sources. - Vladimir Katkovnik (Signal Process., 2002)

Multiresolution nonparametric regression and image denoising. - Vladimir Katkovnik (ICIP (3), 2003)

Adaptive window size gradient estimation for image edge detection. - Edisson Albán; Vladimir Katkovnik; Karen O. Egiazarian (Image Processing: Algorithms and Systems, 2003)

Application of the ICI principle to window size adaptive median filtering. - Vladimir Katkovnik; Karen O. Egiazarian; Jaakko Astola (Signal Process., 2003)

Directional varying scale approximations for anisotropic signal processing. - Vladimir Katkovnik; Alessandro Foi; Karen O. Egiazarian; Jaakko Astola (EUSIPCO, 2004)

Robust approximate median beamforming for phased array radar with antenna switching. - Moon-Sik Lee; Vladimir Katkovnik; Yong-Hoon Kim (Signal Process., 2004)

A multiresolution nonparametric regression for spatially adaptive image de-noising. - Vladimir Katkovnik (IEEE Signal Process. Lett., 2004)

System modeling and signal processing for a switch antenna array radar. - Moon-Sik Lee; Vladimir Katkovnik; Yong-Hoon Kim (IEEE Trans. Signal Process., 2004)

Multichannel image deblurring of raw color components. - Mejdi Trimeche; Dmitriy Paliy; Markku Vehvilainen; Vladimir Katkovnik (Computational Imaging, 2005)

Anisotropic local approximations for pointwise adaptive signal-dependent noise removal. - Alessandro Foi; Radu Ciprian Bilcu; Vladimir Katkovnik; Karen O. Egiazarian (EUSIPCO, 2005)

A spatially adaptive Poissonian image deblurring. - Alessandro Foi; Sakari Alenius; Mejdi Trimeche; Vladimir Katkovnik; Karen O. Egiazarian (ICIP (1), 2005)

Multiresolution local polynomial regression: A new approach to pointwise spatial adaptation. - Vladimir Katkovnik (Digit. Signal Process., 2005)

A Spatially Adaptive Nonparametric Regression Image Deblurring. - Vladimir Katkovnik; Karen O. Egiazarian; Jaakko Astola (IEEE Trans. Image Process., 2005)

Spatially adaptive 3D inverse for optical sectioning. - Dmitriy Paliy; Vladimir Katkovnik; Karen O. Egiazarian (Computational Imaging, 2006)

Pointwise shape-adaptive DCT for high-quality deblocking of compressed color images. - Alessandro Foi; Vladimir Katkovnik; Karen O. Egiazarian (EUSIPCO, 2006)

Frequency domain blind deconvolution in multiframe imaging using anisotropic spatially-adaptive denoising. - Vladimir Katkovnik; Dmitriy Paliy; Karen O. Egiazarian; Jaakko Astola (EUSIPCO, 2006)

Anisotropic local likelihood approximations: theory, algorithms, applications. - Vladimir Katkovnik; Alessandro Foi; Karen O. Egiazarian; Jaakko Astola (Image Processing: Algorithms and Systems, 2006)

Performance study of the minimax robust phased array for wireless communications. - Vladimir Katkovnik; Moon-Sik Lee; Yong-Hoon Kim (IEEE Trans. Commun., 2006)

Mix-distribution modeling for overcomplete denoising. - Vladimir Katkovnik; Alessandro Foi; Karen O. Egiazarian (ALCOSP, 2007)

Signal-dependent noise removal in pointwise shape-adaptive DCT domain with locally adaptive variance. - Alessandro Foi; Vladimir Katkovnik; Karen O. Egiazarian (EUSIPCO, 2007)

Color Image Denoising via Sparse 3D Collaborative Filtering with Grouping Constraint in Luminance-Chrominance Space. - Kostadin Dabov; Alessandro Foi; Vladimir Katkovnik; Karen O. Egiazarian (ICIP (1), 2007)

Compressed Sensing Image Reconstruction Via Recursive Spatially Adaptive Filtering. - Karen O. Egiazarian; Alessandro Foi; Vladimir Katkovnik (ICIP (1), 2007)

Color filter array interpolation based on spatial adaptivity. - Dmitriy Paliy; Radu Ciprian Bilcu; Vladimir Katkovnik; Markku Vehviläinen (IPAS, 2007)

Demosaicing of noisy data: spatially adaptive approach. - Dmitriy Paliy; Mejdi Trimeche; Vladimir Katkovnik; Sakari Alenius (IPAS, 2007)

Performance Analysis of CDMA Mobile System Employing LPA Smart Antenna. - Seokjin Sung; Hyunduk Kang; Vladimir Katkovnik; Kiseon Kim (IEICE Trans. Commun., 2007)

Spatially adaptive color filter array interpolation for noiseless and noisy data. - Dmitriy Paliy; Vladimir Katkovnik; Radu Ciprian Bilcu; Sakari Alenius; Karen O. Egiazarian (Int. J. Imaging Syst. Technol., 2007)

Image Denoising by Sparse 3-D Transform-Domain Collaborative Filtering. - Kostadin Dabov; Alessandro Foi; Vladimir Katkovnik; Karen O. Egiazarian (IEEE Trans. Image Process., 2007)

Pointwise Shape-Adaptive DCT for High-Quality Denoising and Deblocking of Grayscale and Color Images. - Alessandro Foi; Vladimir Katkovnik; Karen O. Egiazarian (IEEE Trans. Image Process., 2007)

Adaptive Robust DOA Estimation for a 60-GHz Antenna-Array System. - Moon-Sik Lee; Ji-Yong Park; Vladimir Katkovnik; Tatsuo Itoh; Yong-Hoon Kim (IEEE Trans. Veh. Technol., 2007)

Image upsampling via spatially adaptive block-matching filtering. - Aram Danielyan; Alessandro Foi; Vladimir Katkovnik; Karen O. Egiazarian (EUSIPCO, 2008)

Digital wavefield reconstruction in phase-shifting holography as inverse discrete problem. - Vladimir Katkovnik; Jaakko Astola; Karen O. Egiazarian (EUSIPCO, 2008)

Joint deblurring and demosaicing of Poissonian Bayer-data based on local adaptivity. - Dmytro Paliy; Alessandro Foi; Radu Ciprian Bilcu; Vladimir Katkovnik; Karen O. Egiazarian (EUSIPCO, 2008)

Deblurring noisy radial-blurred images: spatially adaptive filtering approach. - Giacomo Boracchi; Alessandro Foi; Vladimir Katkovnik; Karen O. Egiazarian (Image Processing: Algorithms and Systems, 2008)

Image restoration by sparse 3D transform-domain collaborative filtering. - Kostadin Dabov; Alessandro Foi; Vladimir Katkovnik; Karen O. Egiazarian (Image Processing: Algorithms and Systems, 2008)

Robust phased array receiver for multipath code-division multiple access communication systems. - Moon-Sik Lee; Vladimir Katkovnik; Yong-Hoon Kim (IET Commun., 2008)

Robust M-estimation techniques for non-Gaussian CDMA wireless channels with phased array antenna. - Vladimir Katkovnik; Moon-Sik Lee; Yong-Hoon Kim (Signal Process., 2008)

Practical Poissonian-Gaussian Noise Modeling and Fitting for Single-Image Raw-Data. - Alessandro Foi; Mejdi Trimeche; Vladimir Katkovnik; Karen O. Egiazarian (IEEE Trans. Image Process., 2008)

Phase Local Approximation (PhaseLa) Technique for Phase Unwrap From Noisy Data. - Vladimir Katkovnik; Jaakko Astola; Karen O. Egiazarian (IEEE Trans. Image Process., 2008)

Spatially Adaptive Estimation via Fitted Local Likelihood Techniques. - Vladimir Katkovnik; Vladimir G. Spokoiny (IEEE Trans. Signal Process., 2008)

Computational inverse coherent wave field imaging. - Vladimir Katkovnik; Artem Migukin; Jaakko Astola (ICIP, 2009)

Multi-frequency Phase Unwrapping from Noisy Data: Adaptive Local Maximum Likelihood Approach. - José M. Bioucas-Dias; Vladimir Katkovnik; Jaakko Astola; Karen O. Egiazarian (SCIA, 2009)

Denoising of Multispectral Images via Nonlocal Groupwise Spectrum-PCA. - Aram Danielyan; Alessandro Foi; Vladimir Katkovnik; Karen O. Egiazarian (CGIV/MCS, 2010)

From Local Kernel to Nonlocal Multiple-Model Image Denoising. - Vladimir Katkovnik; Alessandro Foi; Karen O. Egiazarian; Jaakko Astola (Int. J. Comput. Vis., 2010)

Decoupled inverse and denoising for image deblurring: Variational BM3D-frame technique. - Vladimir Katkovnik; Aram Danielyan; Karen O. Egiazarian (ICIP, 2011)

Advanced phase retrieval: maximum likelihood technique with sparse regularization of phase and amplitude - Artem Migukin; Vladimir Katkovnik; Jaakko Astola (CoRR, 2011)

BM3D Frames and Variational Image Deblurring. - Aram Danielyan; Vladimir Katkovnik; Karen O. Egiazarian (IEEE Trans. Image Process., 2012)

Nonlocal Transform-Domain Filter for Volumetric Data Denoising and Reconstruction. - Matteo Maggioni; Vladimir Katkovnik; Karen O. Egiazarian; Alessandro Foi (IEEE Trans. Image Process., 2013)

Super resolution inverse imaging for plenoptic camera using wavefield modeling. - Petri Helin; Vladimir Katkovnik; Atanas P. Gotchev; Jaakko Astola (3DTV-Conference, 2014)

Digital phase-shifting holography based on sparse approximation of phase and amplitude. - Vladimir Katkovnik; José M. Bioucas-Dias; Nikolay V. Petrov (3DTV-Conference, 2014)

Phase imaging via sparse coding in the complex domain based on high-order svd and nonlocal BM3D techniques. - Vladimir Katkovnik; Karen O. Egiazarian; José M. Bioucas-Dias (ICIP, 2014)

Single image super-resolution via BM3D sparse coding. - Karen O. Egiazarian; Vladimir Katkovnik (EUSIPCO, 2015)

Interferometric Phase Image Estimation via Sparse Coding in the Complex Domain. - Hao Hongxing; José M. Bioucas-Dias; Vladimir Katkovnik (IEEE Trans. Geosci. Remote. Sens., 2015)

NTIRE 2017 Challenge on Single Image Super-Resolution: Methods and Results. - Radu Timofte; Eirikur Agustsson; Luc Van Gool; Ming-Hsuan Yang 001; Lei Zhang 006; Bee Lim; Sanghyun Son 002; Heewon Kim; Seungjun Nah; Kyoung Mu Lee; Xintao Wang 002; Yapeng Tian; et al. (CVPR Workshops, 2017)

Complex domain nonlocal block-matching denoising based on high-order singular value decomposition (HOSVD). - Vladimir Katkovnik; Mykola Ponomarenko; Karen O. Egiazarian (EUSIPCO, 2017)

Phase retrieval from noisy data based on sparse approximation of object phase and amplitude. - Vladimir Katkovnik (CoRR, 2017)

Complex-valued image denosing based on group-wise complex-domain sparsity. - Vladimir Katkovnik; Mykola Ponomarenko; Karen O. Egiazarian (CoRR, 2017)

Sparse phase imaging based on complex domain nonlocal BM3D techniques. - Vladimir Katkovnik; Karen O. Egiazarian (Digit. Signal Process., 2017)

Sparse approximations in complex domain based on BM3D modeling. - Vladimir Katkovnik; Mykola Ponomarenko; Karen O. Egiazarian (Signal Process., 2017)

A novel binary and multilevel phase masks for enhanced depth-of-focus infrared imaging. - Vladimir Katkovnik; Nicholas Högasten; Karen O. Egiazarian (ACSSC, 2018)

Multi-Frequency Phase Retrieval from Noisy Data. - Vladimir Katkovnik; Karen O. Egiazarian (EUSIPCO, 2018)

Optimization of Hybrid Optics with Multilevel Phase Mask for Improved Depth of Focus Broadband Imaging. - Vladimir Katkovnik; Mykola Ponomarenko; Karen O. Egiazarian (EUVIP, 2018)

Methods and tools for denoising of complex-valued images based on block-matching and high order singular value decomposition. - Mykola Ponomarenko; Vladimir Katkovnik; Karen O. Egiazarian (Image Processing: Algorithms and Systems, 2018)

Dictionary Learning Phase Retrieval from Noisy Diffraction Patterns. - Joshin Krishnan; José M. Bioucas-Dias; Vladimir Katkovnik (Sensors, 2018)

Nonlocality-Reinforced Convolutional Neural Networks for Image Denoising. - Cristóvão Cruz; Alessandro Foi; Vladimir Katkovnik; Karen O. Egiazarian (IEEE Signal Process. Lett., 2018)

Single Image Super-Resolution Based on Wiener Filter in Similarity Domain. - Cristóvão Cruz; Rakesh Mehta; Vladimir Katkovnik; Karen O. Egiazarian (IEEE Trans. Image Process., 2018)

Hyperspectral complex domain denoising. - Vladimir Katkovnik; Igor Shevkunov; Karen O. Egiazarian (EUSIPCO, 2019)

Phase masks optimization for broadband diffractive imaging. - Mykola Ponomarenko; Vladimir Katkovnik; Karen O. Egiazarian (Image Processing: Algorithms and Systems, 2019)

Hyperspectral holography and spectroscopy: computational features of inverse discrete cosine transform. - Vladimir Katkovnik; Igor Shevkunov; Karen O. Egiazarian (CoRR, 2019)

Spectral Object Recognition in Hyperspectral Holography with Complex-Domain Denoising. - Igor Shevkunov; Vladimir Katkovnik; Daniel Claus; Giancarlo Pedrini; Nikolay V. Petrov; Karen O. Egiazarian (Sensors, 2019)

Broadband Hyperspectral Phase Retrieval From Noisy Data. - Vladimir Katkovnik; Igor Shevkunov; Karen O. Egiazarian (ICIP, 2020)

Hyperspectral complex-domain image denoising: cube complex-domain BM3D (CCDBM3D) algorithm. - Vladimir Katkovnik; Mykola Ponomarenko; Karen O. Egiazarian; Igor Shevkunov; Peter Kocsis 002 (Image Processing: Algorithms and Systems, 2020)

Unfolding-Aided Bootstrapped Phase Retrieval in Optical Imaging. - Samuel Pinilla; Kumar Vijay Mishra; Igor Shevkunov; Mojtaba Soltanalian; Vladimir Katkovnik; Karen O. Egiazarian (CoRR, 2022)

Kernelless Blind Inverse Imaging for Flat Meta-Optics Camera. - Samuel Pinilla; Wenzhu Xing; SeyyedReza MiriRostami; Vladimir Katkovnik; Igor Shevkunov; Johannes E. Fröch; Arka Majumdar; Karen O. Egiazarian (EUSIPCO, 2023)

RAW2HSI: Learning-Based Hyperspectral Image Reconstruction from Low-Resolution Noisy Raw-RGB. - Shushik Avagyan; Vladimir Katkovnik; Karen O. Egiazarian (ISPA, 2023)

Computational Hyperspectral Phase Retrieval for Band-Limited Spectral Imaging. - Igor Shevkunov; Vladimir Katkovnik; Karen O. Egiazarian (ISPA, 2023)

Hybrid diffractive optics (DOE & refractive lens) for broadband EDoF imaging. - SeyyedReza MiriRostami; Samuel Pinilla; Igor Shevkunov; Vladimir Katkovnik; Karen O. Egiazarian (Image Processing: Algorithms and Systems, 2023)

ADMM and spectral proximity operators in hyperspectral broadband phase retrieval for quantitative phase imaging. - Vladimir Katkovnik; Igor Shevkunov; Karen O. Egiazarian (Signal Process., 2023)

Unfolding-Aided Bootstrapped Phase Retrieval in Optical Imaging: Explainable AI reveals new imaging frontiers. - Samuel Pinilla; Kumar Vijay Mishra; Igor Shevkunov; Mojtaba Soltanalian; Vladimir Katkovnik; Karen O. Egiazarian (IEEE Signal Process. Mag., 2023)

3F-PNP: Compressive Sensing Using Nonlocal Self-Similarity and Deep Learning Priors. - Karen O. Egiazarian; Vladimir Katkovnik (ICIP, 2024)