1. Tomasz Bajraszewski

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    1. Mentioned In 25 Articles

    2. Method and system for motion artefacts removal in optical coherence tomography

      Method and system for motion artefacts removal in optical coherence tomography
      A method and system for compensating for motion artefacts in Optical Coherence Tomography is provided. A B-scan set includes a plurality of B-scan images acquired at least a position corresponding to a target position of a fundus of an eye. The plurality of B-scans within the B-scan set are aligned using a first alignment process and a second alignment process, where the second alignment process is performed on the B-scan ...
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    3. 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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    4. 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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    5. 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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    6. Apparatus for optical frequency domain tomography with adjusting system

      Apparatus for optical frequency domain tomography with adjusting system
      In an apparatus for imaging of objects by applying optical frequency domain tomography and provided with an adjusting system for setting a relative position of photosensitive elements (174) and a spectrum image (273), the adjusting system is an automatically controlled device causing a relative displacement of at least one photosensitive element (174) of the detection device (173) of the spectrum and the spectrum image (273) between each other. The adjusting ...
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    7. 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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    8. Method And Apparatus For Eye Movement Tracking In Spectral Optical Coherence Tomography. (SD-OCT) (Wo 2010/063416)

      Method And Apparatus For Eye Movement Tracking In Spectral Optical Coherence Tomography. (SD-OCT) (Wo 2010/063416)
      The invention relates to a method and an apparatus for collecting structural data with spectral optical coherence tomography from samples having a point of maximum reflectance. This point of maximum reflectance is used for adjusting the scanned path pattern.
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    9. 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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    10. 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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    11. 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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    12. Spectral Domain Optical Coherence Tomography as the Profilometric Tool for Examination of the Environmental Influence on Paintings on Canvas

      The changes of surface profile of oil paintings on canvas caused by rapid humidity are examined by spectral OCT. The speed, resolution, and long-time stability of SOCT make this technique appropriate for quantitative determination of surface profile changes.
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    13. 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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    14. 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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    15. 1-15 of 25 1 2 »
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  2. About Tomasz Bajraszewski

    Tomasz Bajraszewski is Research Division Director of Optopol Technology S.A/Cannon Group.  Previously he was at the Institute of Physics, Nicolaus Copernicus University, Poland.