1. Articles mentioning both Maciej Szkulmowski and Tomasz Bajraszewski

    1-19 of 19
    1. Method and apparatus for imaging of semi-transparent matter

      Method and apparatus for imaging of semi-transparent matter
      The invention relates to a method and apparatus for measuring the spatial and velocity distribution of scattering structures of a sample in semi-transparent matter. The acquired spectral data I(k, t) are transformed in two steps to image data I(z, v). A Doppler shift is imposed on the light to a separate real and mirror images in the v space to suppress the complex ambiguity artifact.
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    2. Image capturing apparatus, image capturing method, and storage medium

      Image capturing apparatus, image capturing method, and storage medium
      An image capturing apparatus includes a dividing unit configured to divide light from a light source into reference light and measurement light; a first dichroic mirror arranged in a measurement optical path for guiding the measurement light to an object to be examined; a second dichroic mirror arranged in a reference optical path for guiding the reference light to a reference object; and a light receiving unit configured to receive ...
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    3. Spectral optical coherence tomography

      Spectral optical coherence tomography
      The invention relates to an apparatus for generating a scannable optical delay for a beam of light and an apparatus for Fourier domain optical coherence tomography having said apparatus for generating a scannable optical delay in its reference arm (15). The light beam is directed to a pivotably driven mirror (10) from where it is reflected to a fixed mirror (12), and from there back retro reflected along the reference ...
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    4. Method And Apparatus For Optical Coherence Tomography

      Method And Apparatus For Optical Coherence Tomography
      The invention relates to optical coherence tomography (OCT), more specifically to spectral optical coherence tomography (SOCT). The invention deals with problem of artefacts occurring in certain scan positions due to sharp increases of reflection by the object under investigation. It solves this problem by using an extra intensity sensor located at an output for non-dispersed light of the dispersive element used for spectral analysis, e. g. in the zero order ...
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    5. Apparatus For Optical Coherence Tomography And Non-Interferometric Imaging (Wo 2010/022915)

      Apparatus For Optical Coherence Tomography And Non-Interferometric Imaging (Wo 2010/022915)
      The invention relates to an apparatus for optical coherence tomography and non-interferometric imaging of a sample. Additional splitting optics are used to arrange off the light used for the non-interferometric imaging. Interrupting means are provided for interrupting light in the reference path during measurement with the non-interferometric imaging.
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    6. Spectral Optical Coherence Tomography (SOCT) (Wo 2010/003684)

      Spectral Optical Coherence Tomography (SOCT) (Wo 2010/003684)
      The invention relates to an apparatus for generating a scannable optical delay for a beam of light and an apparatus for Fourier domain optical coherence tomography having said apparatus for generating a scannable optical delay in its reference arm (15). The light beam is directed to a pivotably driven mirror (10) from where it is reflected to a fixed mirror (12), and from there back retro reflected along the reference ...
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    7. Method And Apparatus For Spectral Optical Coherence Tomography (Wo 2009/106358)

      Method And Apparatus For Spectral Optical Coherence Tomography (Wo 2009/106358)
      The invention relates to optical coherence tomography (OCT), more specifically to spectral optical coherence tomography (SOCT). The invention deals with the problem of artefacts due to sharp increases of reflection by the object under investigation. It solves this problem by splitting of a part off the returning light for modification of the interferometric data.
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    8. Varnish Thickness Determination by Spectral Optical Coherence Tomography

      The applicability of spectral optical coherence tomography (SOCT) for noninvasive and noncontact assessment of varnish layer thickness and structure on easel paintings is discussed. The SOCT tomograms of such objects are presented. Content Type Book ChapterDOI 10.1007/978-3-540-72130-7_58Authors I. Gorczynska, Opificio delle Pietre Dure di Firenze Laboratorio Scientifico Viale Strozzi 1 50100 Firenze ItalyM. Wojtkowski, Opificio delle Pietre Dure di Firenze Laboratorio Scientifico Viale Strozzi 1 50100 Firenze ItalyM ...
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    9. Fuchs’ Endothelial Dystrophy in 830-nm Spectral Domain Optical Coherence Tomography

      This article presents for the first time the potential of 830-nm spectral domain optical coherence tomography (SD-OCT) in the evaluation of Fuchs’ endothelial dystrophy. SD-OCT is an imaging technique that can be used for in vivo cross-sectional corneal visualization. The important features of SD-OCT instruments include improved sensitivity and short acquisition time, which improves the quality of the tomograms compared with conventional time domain OCT. Tomograms of the corneas of ...
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    10. Analysis of the Outer Retina Reconstructed by High-resolution, Three-dimensional Spectral Domain Optical Coherence Tomography

      BACKGROUND AND OBJECTIVE A retrospective cross-sectional study was conducted to demonstrate an analysis of an outer retinal layer reconstructed by the three-dimensional and high-speed spectral domain optical coherence tomography (SD-OCT) instrument. PATIENTS AND METHODS New measurement protocols for SD-OCT and methods of analysis and visualization of the individual segmented retinal layer reconstructed by SD-OCT were proposed. Three contour maps representing mutual distances between the basal part of the retinal pigment ...
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    11. Spectral Optical Coherence Tomography in Video-Rate and 3D Imaging of Contact Lens Wear

      Optometry & Vision Science. 84(12):E1104-E1109, December 2007. KALUZNY, BARTLOMIEJ J. MD, PhD; FOJT, WOJCIECH Dipl Ing; SZKULMOWSKA, ANNA MSc; BAJRASZEWSKI, TOMASZ MSc; WOJTKOWSKI, MACIEJ PhD; KOWALCZYK, ANDRZEJ PhD Abstract: Purpose. To present the applicability of spectral optical coherence tomography (SOCT) for video-rate and three-dimensional imaging of a contact lens on the eye surface. Methods. The SOCT prototype instrument constructed at Nicolaus Copernicus University (Torun, Poland) is b
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    12. Mapping of photoreceptor dysfunction using high resolution three-dimensional spectral optical coherence tomography

      B. L. Sikorski, M. Szkulmowski, J. J. Kaluzny et al. The ability to obtain reliable information on functional status of photoreceptor layer is essential for assessing vision impairment in patients with macular diseases. The reconstruction of three-dimensional retinal structure in vivo using Spectral Optical Coherence Tomography (Spectral OCT) became p ... [Proc. SPIE Int. Soc. Opt. Eng. 6844, 68440J (2008)] published Mon Feb 11, 2008.
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    13. Optical Coherence Tomography for Tracking Canvas Deformation

      Optical Coherence Tomography for Tracking Canvas Deformation
      Preliminary results of the application of optical coherence tomography (OCT), in particular in its spectral mode (SOCT), to tracking of deformations in paintings on canvas caused by periodical humidity changes are presented. The setup is able to monitor the position of a chosen point at the surface of a painting with micrometre precision, simultaneously in three dimensions, every 100 seconds. This allows recording of deformations associated with crack formation. For ...
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    14. 1-19 of 19
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  2. Organizations in the News

    1. (12 articles) Nicolaus Copernicus University
    2. (1 articles) Tufts University
    3. (1 articles) Ludwig Maximilian University of Munich
    4. (1 articles) Massachusetts Institute of Technology
    5. (1 articles) University of Pittsburgh
  3. People in the News

    1. (12 articles) Maciej Wojtkowski
    2. (8 articles) Anna Szkulmowska
    3. (8 articles) Andrzej A. Kowalczyk
    4. (4 articles) Bartlomiej J. Kaluzny
    5. (4 articles) Piotr Targowski
    6. (1 articles) Joel S. Schuman
    7. (1 articles) Iwona Gorczynska
    8. (1 articles) Robert A. Huber
    9. (1 articles) Michalina J. Góra
    10. (1 articles) Jay S. Duker
    11. (1 articles) James G. Fujimoto
  4. OCT Companies in the News

    1. (6 articles) Optopol Technology
    2. (1 articles) Carl Zeiss Meditec
    3. (1 articles) Canon Medical Systems