Dr. Jan Švihlík Profile

Dr. Jan Švihlík

Assistant Professor at Univ of Chemistry and Technology Prague

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Author

Publications (34)

Proceedings Article | 6 September 2019 Paper

Stationarity testing in 2D image analysis

Jaromír Kukal, Iva Nachtigalová, Zuzana Krbcová, Jan Švihlík, Karel Fliegel

Proceedings Volume 11137, 111372G (2019) https://doi.org/10.1117/12.2529346

KEYWORDS: Edge detection, Sensors, Image analysis, Image processing, Binary data, Image segmentation, Testing and analysis, Neuroimaging, Brain, Digital imaging

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Proceedings Article | 6 September 2019 Paper

Evaluating resolution in live cell structured illumination microscopy

Jakub Pospíšil, Karel Fliegel, Jan Švihlík, Miloš Klíma

Proceedings Volume 11137, 1113708 (2019) https://doi.org/10.1117/12.2527885

KEYWORDS: Microscopes, Image resolution, Microscopy, Diffraction, Spatial resolution, Video, Super resolution, Live cell imaging, Super resolution microscopy

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Proceedings Article | 6 September 2019 Paper

Variational approach to semi-automated 2D image segmentation

Jaromír Kukal, Zuzana Krbcová, Iva Nachtigalová, Jan Švihlík, Karel Fliegel

Proceedings Volume 11137, 111372H (2019) https://doi.org/10.1117/12.2529374

KEYWORDS: Image segmentation, Image enhancement, Brain, Image processing, Visualization, Computed tomography, Head, Magnetic resonance imaging

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Proceedings Article | 17 September 2018 Paper

Stochastic and analytic modeling of atmospheric turbulence in image processing

Zuzana Krbcová, Jaromír Kukal, Quang Van Tran, Jan Švihlík, Karel Fliegel

Proceedings Volume 10752, 107522N (2018) https://doi.org/10.1117/12.2321199

KEYWORDS: Stochastic processes, Signal to noise ratio, Atmospheric turbulence, Atmospheric modeling, Fourier transforms, Monte Carlo methods, Optical transfer functions, Turbulence, Filtering (signal processing), Image processing

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Proceedings Article | 17 September 2018 Paper

Stabilization of median smoother via variational approach

Zuzana Krbcová, Abduljalil Sireis, Jaromír Kukal, Jan Švihlík, Karel Fliegel

Proceedings Volume 10752, 107522O (2018) https://doi.org/10.1117/12.2321226

KEYWORDS: Signal to noise ratio, Digital filtering, Smoothing, Image filtering, Nonlinear filtering, Image processing, Infinite impulse response filters, Iterative methods, Image restoration, Image quality

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Proceedings Article | 17 September 2018 Paper

Comparison of resolution estimation methods in optical microscopy

Jakub Pospíšil, Karel Fliegel, Jan Švihlík, Miloš Klíma

Proceedings Volume 10752, 107522Q (2018) https://doi.org/10.1117/12.2321301

KEYWORDS: Modulation transfer functions, Optical microscopy, Image resolution, Microscopy, Diffraction, Microscopes, Objectives, Spatial frequencies, Point spread functions, Optical resolution

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Proceedings Article | 17 September 2018 Paper

Performance comparison of perceived image color difference measures

Karel Fliegel, Jana Kolmašová, Jan Švihlík

Proceedings Volume 10752, 107522U (2018) https://doi.org/10.1117/12.2321644

KEYWORDS: Databases, Image quality, Color difference, Statistical analysis, Image filtering, Image processing, Visual system, Video

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SPIE Journal Paper | 13 November 2017

Supervised and unsupervised segmentation using superpixels, model estimation, and graph cut

Jiří Borovec, Jan Švihlík, Jan Kybic, David Habart

JEI, Vol. 26, Issue 06, 061610, (November 2017) https://doi.org/10.1117/12.10.1117/1.JEI.26.6.061610

KEYWORDS: Image segmentation, RGB color model, Ovary, Tissues, Data modeling, Lung, Microscopy, Computed tomography, Image processing, Expectation maximization algorithms

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Proceedings Article | 19 September 2017 Paper

Smoothing of astronomical images with Poisson distribution

Zuzana Krbcová, Jaromír Kukal, Jan Švihlík, Karel Fliegel

Proceedings Volume 10396, 103962V (2017) https://doi.org/10.1117/12.2274121

KEYWORDS: Smoothing, Astronomy, Digital cameras, Image enhancement, CCD cameras, Image sensors, Cameras, Numerical analysis, Imaging systems, Image analysis

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Proceedings Article | 19 September 2017 Paper

Estimation of Poisson noise in spatial domain

Jan Švihlík, Karel Fliegel, Stanislav Vítek, Jaromír Kukal, Zuzana Krbcová

Proceedings Volume 10396, 103962X (2017) https://doi.org/10.1117/12.2274149

KEYWORDS: Astronomy, Denoising, Probability theory, Image processing, CCD image sensors, Image analysis, Cameras

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Proceedings Article | 28 September 2016 Paper

Fast estimate of Hartley entropy in image sharpening

Zuzana Krbcová, Jaromír Kukal, Jan Svihlik, Karel Fliegel

Proceedings Volume 9971, 99712I (2016) https://doi.org/10.1117/12.2237743

KEYWORDS: Image enhancement, Magnetic resonance imaging, Image filtering, Edge detection, Signal to noise ratio, Image quality, Image restoration, Reconstruction algorithms, Quality measurement, Digital image processing

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Proceedings Article | 28 September 2016 Paper

Meteor tracking via local pattern clustering in spatio-temporal domain

Jaromír Kukal, Martin Klimt, Jan Švihlík, Karel Fliegel

Proceedings Volume 9971, 99712M (2016) https://doi.org/10.1117/12.2237649

KEYWORDS: Video, Statistical analysis, Stars, Image analysis, Imaging systems, Principal component analysis, Cameras, Dimension reduction, Data processing, Radon

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Proceedings Article | 29 March 2016 Paper

Comparison of volume estimation methods for pancreatic islet cells

Jiří Dvořák, Jan Švihlík, David Habart, Jan Kybic

Proceedings Volume 9788, 97881K (2016) https://doi.org/10.1117/12.2216783

KEYWORDS: Statistical analysis, Image analysis, Transplantation, Biological research, Image segmentation, Microscopy, Optical spheres, Error analysis, Digital imaging, Confocal microscopy, Binary data, Image quality

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Proceedings Article | 21 March 2016 Paper

Automated separation of merged Langerhans islets

Jan Švihlík, Jan Kybic, David Habart

Proceedings Volume 9784, 978438 (2016) https://doi.org/10.1117/12.2216798

KEYWORDS: Shape analysis, Transplantation, Chemical engineering, Image segmentation, Microscopy, RGB color model, Image processing algorithms and systems, Evolutionary algorithms, Binary data, Tissues

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Proceedings Article | 22 September 2015 Paper

GPU accelerated processing of astronomical high frame-rate videosequences

Stanislav Vítek, Jan Švihlík, Lukáš Krasula, Karel Fliegel, Petr Páta

Proceedings Volume 9599, 95992L (2015) https://doi.org/10.1117/12.2188610

KEYWORDS: Convolution, Astronomy, Video, Cameras, Imaging systems, Video acceleration, Data processing, Image processing, Video processing, Sensors

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Proceedings Article | 22 September 2015 Paper

Performance evaluation of image deconvolution techniques in space-variant astronomical imaging systems with nonlinearities

Karel Fliegel, Petr Janout, Jan Bednář, Lukáš Krasula, Stanislav Vítek, Jan Švihlík, Petr Páta

Proceedings Volume 9599, 959927 (2015) https://doi.org/10.1117/12.2187888

KEYWORDS: Imaging systems, Deconvolution, Point spread functions, Image deconvolution, Astronomical imaging, Signal to noise ratio, Astronomy, Image processing, Image analysis, Complex systems

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Proceedings Article | 22 September 2015 Paper

Meteor localization via statistical analysis of spatially temporal fluctuations in image sequences

Jaromír Kukal, Martin Klimt, Jan Švihlík, Karel Fliegel

Proceedings Volume 9599, 95992C (2015) https://doi.org/10.1117/12.2188186

KEYWORDS: Statistical analysis, Video, Visualization, Atmospheric turbulence, Image analysis, Cameras, Signal detection, Earth's atmosphere, Statistical modeling, Imaging systems

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Proceedings Article | 22 September 2015 Paper

Color normalization for robust evaluation of microscopy images

Jan Švihlík, Jan Kybic, David Habart

Proceedings Volume 9599, 95992F (2015) https://doi.org/10.1117/12.2188236

KEYWORDS: Image segmentation, RGB color model, Microscopy, Transplantation, Tissues, Algorithm development, Databases, Medical research, Chemistry, Failure analysis

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Proceedings Article | 23 September 2014 Paper

Estimation and measurement of space variant features of imaging systems and analysis of their influence on accuracy in astronomical imaging

Elena Anisimova, Jan Bednář, Martin Blažek, Petr Janout, Karel Fliegel, Petr Páta, Stanislav Vítek, Jan Švihlík

Proceedings Volume 9217, 92171E (2014) https://doi.org/10.1117/12.2061736

KEYWORDS: Point spread functions, Photometry, Imaging systems, Zernike polynomials, Astronomy, Stars, Image processing, Image analysis, Wavefronts, Optical aberrations

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Proceedings Article | 23 September 2014 Paper

Segmentation of astronomical images

Jan Švihlík, Stanislav Vítek, Karel Fliegel, Petr Páta, Elena Anisimova

Proceedings Volume 9217, 921722 (2014) https://doi.org/10.1117/12.2062009

KEYWORDS: Image segmentation, Astronomy, Stars, Image processing algorithms and systems, CCD image sensors, Sensors, Wavelet transforms, Telescopes, Astronomical imaging, Photometry

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Proceedings Article | 21 March 2014 Paper

Classification of microscopy images of Langerhans islets

Jan Švihlík, Jan Kybic, David Habart, Zuzana Berková, Peter Girman, Jan Kříž, Klára Zacharovová

Proceedings Volume 9034, 90341S (2014) https://doi.org/10.1117/12.2043621

KEYWORDS: Image segmentation, RGB color model, Roentgenium, Microscopy, Image processing algorithms and systems, Error analysis, Transplantation, Image analysis, Tissues, Spherical lenses

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Proceedings Article | 26 September 2013 Paper

Analysis of images obtained from space-variant astronomical imaging systems

Elena Anisimova, Karel Fliegel, Martin Blažek, Petr Janout, Jan Bednář, Petr Páta, Stanislav Vítek, Jan Švihlík

Proceedings Volume 8856, 885607 (2013) https://doi.org/10.1117/12.2023904

KEYWORDS: Point spread functions, Imaging systems, Astronomy, Photometry, Image processing, Cameras, Image analysis, Stars, Electro optical systems, Video

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Proceedings Article | 26 September 2013 Paper

Modeling of quantization noise in linear analog-to-digital converter

Jan Švihlík, Karel Fliegel

Proceedings Volume 8856, 885626 (2013) https://doi.org/10.1117/12.2023048

KEYWORDS: Quantization, Wavelets, Wavelet transforms, Systems modeling, Signal processing, Interference (communication), Statistical modeling, Discrete wavelet transforms, Digital imaging, Imaging systems

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Proceedings Article | 15 October 2012 Paper

Wiener filtering in the process of dark current suppression

Jan Švihlík, Frantisek Mojžíš, Karel Fliegel, Jaromír Kukal

Proceedings Volume 8499, 849925 (2012) https://doi.org/10.1117/12.928652

KEYWORDS: Electronic filtering, Filtering (signal processing), Digital filtering, Cameras, Astronomy, Temperature metrology, Nonlinear filtering, Image filtering, CCD image sensors, Multimedia

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SPIE Journal Paper | 16 August 2012 Open Access

Errata: Estimation of non-Gaussian noise parameters in the wavelet domain using the moment-generating function

Jan Svihlik, Eva Jerhotova, Karel Fliegel, Petr Páta, Stanislav Vítek, Jaromir Kukal, Pavel Koten

JEI, Vol. 21, Issue 3, 039802, (August 2012) https://doi.org/10.1117/12.10.1117/1.JEI.21.3.039802

KEYWORDS: Wavelets, Chemical engineering, Control systems, Electrical engineering, Electronic imaging, Chemical analysis, Software engineering, Astronomy

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SPIE Journal Paper | 22 June 2012 Open Access

Estimation of non-Gaussian noise parameters in the wavelet domain using the moment-generating function

Jan Svihlik, Eva Jerhotova, Karel Fliegel, Petr Páta, Stanislav Vítek, Jaromir Kukal, Pavel Koten

JEI, Vol. 21, Issue 2, 023025, (June 2012) https://doi.org/10.1117/12.10.1117/1.JEI.21.2.023025

KEYWORDS: Wavelets, Statistical analysis, Data modeling, Astronomy, Statistical modeling, Direct methods, Video, Cameras, Denoising, Data acquisition

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Proceedings Article | 24 September 2011 Paper

Meteor automatic imager and analyzer: current status and preprocessing of image data

Karel Fliegel, Jan Švihlík, Petr Páta, Stanislav Vítek, Pavel Koten

Proceedings Volume 8135, 81351S (2011) https://doi.org/10.1117/12.893700

KEYWORDS: Image intensifiers, Cameras, Video, Imaging systems, Optoelectronics, Image resolution, Automatic control, Spatial resolution, Modulation transfer functions, Image analysis

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Proceedings Article | 8 September 2010 Paper

Meteor automatic imager and analyzer: analysis of noise characteristics and possible noise suppression

Jan Švihlík, Karel Fliegel, Petr Páta, Stanislav Vítek, Pavel Koten

Proceedings Volume 7798, 779821 (2010) https://doi.org/10.1117/12.859685

KEYWORDS: Video, Imaging systems, Image analysis, Interference (communication), Astronomy, Cameras, Chemical analysis, Systems modeling, Analytical research, Analog electronics

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Proceedings Article | 2 September 2009 Paper

A utilization of GMM for scientific images modeling

Jan Švihlík, Karel Fliegel

Proceedings Volume 7443, 74431R (2009) https://doi.org/10.1117/12.826008

KEYWORDS: Wavelets, Data modeling, Systems modeling, Statistical analysis, Astronomy, Multimedia, Discrete wavelet transforms, Image processing, Statistical modeling, CCD cameras

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Proceedings Article | 15 July 2008 Paper

Bayesian approach to estimation of the map of dark current in wavelet domain

J. Švihlík, M. Řeřábek, P. Páta

Proceedings Volume 7019, 701932 (2008) https://doi.org/10.1117/12.787805

KEYWORDS: Wavelets, Discrete wavelet transforms, Astronomy, Photometry, Stars, Statistical analysis, CCD image sensors, Wavelet transforms, Interference (communication), Charge-coupled devices

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Proceedings Article | 24 September 2007 Paper

Bayesian approach to the thermally generated charge elimination

Jan Švihlík

Proceedings Volume 6696, 66961R (2007) https://doi.org/10.1117/12.731774

KEYWORDS: Wavelets, Discrete wavelet transforms, Astronomy, Statistical analysis, Wavelet transforms, Transform theory, Control systems, Nonlinear filtering, Interference (communication), Algorithm development

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Proceedings Article | 24 September 2007 Paper

An efficient method of noise suppression in security systems

Karel Fliegel, Jan Švihlik

Proceedings Volume 6696, 66960I (2007) https://doi.org/10.1117/12.733104

KEYWORDS: Video, Denoising, Video surveillance, Wavelets, Signal to noise ratio, Statistical analysis, RGB color model, Wavelet transforms, Sensing systems, Error analysis

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Proceedings Article | 18 September 2007 Paper

Space variant point spread function modeling for astronomical image data processing

Martin Řeřábek, Petr Páta, Karel Fliegel, Jan Švihlik, Pavel Koten

Proceedings Volume 6691, 66910T (2007) https://doi.org/10.1117/12.738492

KEYWORDS: Point spread functions, Stars, Wavefront aberrations, Imaging systems, Astronomy, Optical aberrations, Monochromatic aberrations, Deconvolution, Image processing, Systems modeling

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Proceedings Article | 7 September 2006 Paper

Design of CMOS-APS smart imagers with mixed signal processing and analysis of their transfer characteristics

Karel Fliegel, Jan Švihlík, Martin Řeřábek

Proceedings Volume 6295, 62950R (2006) https://doi.org/10.1117/12.680401

KEYWORDS: Modulation transfer functions, Imaging systems, Sensors, Image sensors, Optical transfer functions, Image processing, Wavelets, Point spread functions, Statistical analysis, Interference (communication)

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Showing 5 of 34 publications

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