Ms. Weronika Zaperty Profile

Weronika Zaperty

Research Associate at Warsaw Univ of Technology

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Publications (9)

Proceedings Article | 1 April 2020 Presentation + Paper

Numerical reconstruction of large HPO Fourier holograms

Tomasz Kozacki, Weronika Finke, Juan Martinez-Carranza, Rafał Kukołowicz

Proceedings Volume 11353, 113530O (2020) https://doi.org/10.1117/12.2555442

KEYWORDS: Holograms, Digital holography, Wavefronts, Holography, Paraxial approximations, Spatial frequencies, Wave propagation, Spherical lenses, Fourier transforms

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Proceedings Article | 1 April 2020 Presentation + Paper

Color Fourier imaging for the tabletop holographic display

Hyon-Gon Choo, Weronika Zaperty, Maksymilian Chlipala, Tomasz Kozacki, Jinwoong Kim

Proceedings Volume 11353, 113530I (2020) https://doi.org/10.1117/12.2553987

KEYWORDS: Holograms, Holography, RGB color model, Digital micromirror devices, Imaging systems, 3D image reconstruction, Color imaging, Spatial light modulators, Wave propagation, Fourier optics

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Proceedings Article | 7 September 2018 Paper

Full and horizontal parallax Fourier holography with laser capture and LED display

Tomasz Kozacki, Maksymilian Chlipała, Weronika Zaperty, Anna Gołoś

Proceedings Volume 10834, 108340Z (2018) https://doi.org/10.1117/12.2320114

KEYWORDS: Holography, Spatial light modulators, Holograms, LED displays, Digital holography, RGB color model, 3D image reconstruction, Light emitting diodes, Multiplexing

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Proceedings Article | 7 September 2018 Paper

Numerical model of diffraction effects of pixelated phase-only spatial light modulators

Weronika Zaperty, Tomasz Kozacki

Proceedings Volume 10834, 108342A (2018) https://doi.org/10.1117/12.2319739

KEYWORDS: Spatial light modulators, Diffraction, Holograms, Liquid crystal on silicon, Phase modulation, Computer simulations

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Proceedings Article | 28 September 2016 Paper

RGB imaging volumes alignment method for color holographic displays

Weronika Zaperty, Tomasz Kozacki, Radosław Gierwiało, Małgorzata Kujawińska

Proceedings Volume 10031, 1003117 (2016) https://doi.org/10.1117/12.2249197

KEYWORDS: Holography, RGB color model, Spatial light modulators, Calibration, Holograms, 3D image reconstruction, Wavefronts, Optical filters, Imaging systems, Charge-coupled devices

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Proceedings Article | 14 September 2016 Paper

Fourier RGB synthetic aperture color holographic capture for wide angle holographic display

Anna Gołoś, Weronika Zaperty, Grzegorz Finke, Piotr Makowski, Tomasz Kozacki

Proceedings Volume 9970, 99701E (2016) https://doi.org/10.1117/12.2237317

KEYWORDS: Holography, Holograms, RGB color model, Digital holography, Image processing, 3D image processing, Image registration, RGB color model, 3D image reconstruction, Spatial light modulators, Sensors

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Proceedings Article | 11 March 2015 Paper

Wide-angle color holographic 3D display with multi-source-based holographic content

Weronika Zaperty, Malgorzata Kujawinska, Tomasz Kozacki, Bartosz Wisniowski

Proceedings Volume 9385, 93850E (2015) https://doi.org/10.1117/12.2078381

KEYWORDS: Holography, Spatial light modulators, Multiplexing, Holograms, 3D displays, Stereo holograms, Image quality, Clouds, Liquid crystal on silicon, Modulation

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Proceedings Article | 18 November 2013 Paper

Coupling for capturing an displaying hologram systems for real-time digital holographic interferometry

Rosario Porras-Aguilar, Weronika Zaperty, Malgorzata Kujawinska

Proceedings Volume 8785, 87856S (2013) https://doi.org/10.1117/12.2021692

KEYWORDS: Digital holography, Holographic interferometry, Holograms, Wavefronts, Spatial light modulators, Cameras, Reconstruction algorithms, Numerical simulations, Phase shifts, Holography

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Conventional (analog) holographic interferometry (HI) has been used as a powerful technique in optical metrology since sixties of XX century. However, its practical applications have been constrained because of the cumbersome procedures required for holographic material development. Digital holography has brought significant simplifications due to digital capture of holograms and their further numerical reconstruction and manipulation of reconstructed phases and amplitudes. These features are the fundamentals of double exposure digital holographic interferometry which nowadays is used in such applications as industrial inspection, medical imaging, microscopy and metrology. However another very popular HI technique, namely real time holographic interferometry has not been demonstrated in its digital version. In this paper we propose the experimental-numerical method which allows for real-time DHI implementation. In the first stage a set of digital phase shifted holograms of an object in an initial condition is captured and the phase of an object wavefront in the hologram plane is calculated. This phase is used to address a spatial light modulator, which generates the initial object wavefront. This wavefront (after proper SLM calibration) propagates toward an object and interfere with an actual object wavefront giving real-time interference fringes. The procedure works correctly in the case when CCD camera and SLM LCOS pixel sizes are the same. Usually it is not the case. Therefore we had proposed two different methods which allow the overcome of this mismatch pixel problem. The first one compensates for lateral magnification and the second one is based on re-sampling of a captured phase. The methods are compared through numerical simulations and with experimental data. Finally, the implications of setting up the experiment with the object reference phase compensated by the two approaches are analyzed and the changes in an object are monitored in real time by DHI.

Proceedings Article | 23 May 2011 Paper

Multi SLMs holographic display with inclined plane wave illumination

Weronika Zaperty, Tomasz Kozacki, Malgorzata Kujawińska

Proceedings Volume 8083, 80830X (2011) https://doi.org/10.1117/12.890132

KEYWORDS: Spatial light modulators, Holograms, Holography, Liquid crystal on silicon, 3D image reconstruction, Digital holography, Calibration, Phase shifts, Charge-coupled devices, Reconstruction algorithms

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Showing 5 of 9 publications

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