1. Articles mentioning both Nicolaus Copernicus University and Piotr Targowski

    1-24 of 30 1 2 »

    1. Training on Application of Optical Coherence Tomography (OCT) to Structural Analysis of Cultural Heritage Objects: June 27–28, 2013 Nicolaus Copernicus University, Torun, Poland

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      Training on Application of Optical Coherence Tomography (OCT) to Structural Analysis of Cultural Heritage Objects: June 27–28, 2013 Nicolaus Copernicus University, Torun, Poland
      ...ided by the organizers, but participants are encouraged to bring their own samples – contact Piotr Targowski, Nicolaus Copernicus University, ptarg@fizyka.umk.pl for details. There will be no admission fee. Invitation ...
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      Mentions: Nicolaus Copernicus University OCT4ART Piotr Targowski

    2. Feature Of The Week 11/25/12: Nicolaus Copernicus University Presents Work on Four-Dimensional OCT Imaging Using Graphics Processing Units

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      Feature Of The Week 11/25/12: Nicolaus Copernicus University Presents Work on Four-Dimensional OCT Imaging Using Graphics Processing Units
      ...esented. For more information see Article . Courtesy Marcin Sylwestrzak from Nicolaus Copernicus University . Nicolaus Copernicus University present the application of graphics processing unit (GPU) programming for real-...
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      Mentions: Maciej Wojtkowski Nicolaus Copernicus University Maciej Szkulmowski

    3. Four-dimensional structural and Doppler optical coherence tomography imaging on graphics processing units

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      Four-dimensional structural and Doppler optical coherence tomography imaging on graphics processing units

      The authors present the application of graphics processing unit (GPU) programming for real-time three-dimensional (3-D) Fourier domain optical coherence tomography (FdOCT) imaging with implementation of flow visualization algorithms. One of the limitations of FdOCT is data processing time, which is generally longer than data acquisition time. Utilizing additional algorithms, such as Doppler analysis, further increases computation time. The general purpose computing on GPU (GPGPU) has been used successfully for structural OCT imaging, but real-time 3-D imaging of flows has so far not been presented. We have developed software for structural and Doppler OCT processing capable of visualization of two-dimensional (2-D ...

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      Mentions: Maciej Wojtkowski Nicolaus Copernicus University Maciej Szkulmowski

    6. Application of optical coherence tomography (OCT) for real time monitoring of consolidation of the paint layer in Hinterglasmalerei objects

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      Application of optical coherence tomography (OCT) for real time monitoring of consolidation of the paint layer in Hinterglasmalerei objects
      ... the conservation treatment of such artefacts. Magdalena Iwanicka, Ewa A. Kwiatkowska, Marcin Sylwestrzak and Piotr Targowski, "Application of optical coherence tomography (OCT) for real time monitoring of consolidation ...
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      Mentions: Nicolaus Copernicus University Piotr Targowski Marcin Sylwestrzak

    8. Method And Apparatus For Optical Coherence Tomography

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      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 of a diffraction grating, and using the signal of this sensor for the modification of the interferometric data.
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      Mentions: Nicolaus Copernicus University Optopol Technology Tomasz Bajraszewski

    9. Feature Of The Week 10/31/10: Nicolaus Copernicus University Researchers Describe Work on Massively Parallel Data Processing for OCT

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      Feature Of The Week 10/31/10: Nicolaus Copernicus University Researchers Describe Work on Massively Parallel Data Processing for OCT
      ... a cuticle was used as an example).For more information see recent Articles. Courtesy of Piotr Targowski from Nicolaus Copernicus University. Feature Of The Week 10/31/10: One of the significant limitations of the Fourie...
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      Mentions: Maciej Wojtkowski Nicolaus Copernicus University Piotr Targowski

    10. Real-time imaging for Spectral Optical Coherence Tomography with massively parallel data processing

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      Real-time imaging for Spectral Optical Coherence Tomography with massively parallel data processing
      In this paper the application of massively parallel processing of Spectral Optical Coherence Tomography (SOCT) data with the aid of a low-cost Graphic Processing Unit (GPU) is presented. The reported system may be used for real-time imaging of high resolution 2D tomograms or for presenting volume data. The overall imaging speed is over 100 frames/second for 2D tomograms built of 1024 A-scans and 9 frames/second for 3D volume images containing 100 slices of 100 A-scans. This includes t he acquisition of 2048 pixels from a CCD camera per A-scan, data transfer to the processor, all necessary processing and ...
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      Mentions: Nicolaus Copernicus University Maciej Szkulmowski Piotr Targowski

    14. Method And Apparatus For Spectral Optical Coherence Tomography (Wo 2009/106358)

      Explore wipo.int Ophthalmology , Patents
      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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      Mentions: Nicolaus Copernicus University Optopol Technology Tomasz Bajraszewski

    15. Applicability of Optical Coherence Tomography at 1.55 μm to the Examination of Oil Paintings

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      Applicability of Optical Coherence Tomography at 1.55 μm to the Examination of Oil Paintings
      With 47 samples of commercially available oil paints, the applicability of Optical coherence tomography to noninvasive tomography of paint layers was examined. Two different instruments, utilizing near-infrared light with central wavelength of 823nm and, for the first time, 1.55 μm, were used to obtain cross-sectional images. Example tomograms are given; a ray tracing correction of images is also discussed. The tests revealed that applicability of OCT is limited to certain pigments and the longer wavelength is better suited for this application.
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      Mentions: Nicolaus Copernicus University Anna Szkulmowska Upper Austrian Research GmbH

    16. Varnish Thickness Determination by Spectral Optical Coherence Tomography

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      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. Szkulmowski, Opificio delle Pietre Dure di Firenze Laboratorio Scientifico Viale Strozzi 1 50100 Firenze ItalyT. Bajraszewski, Opificio delle Pietre Dure di Firenze Laboratorio Scientifico Viale Strozzi 1 50100 Firenze ItalyB ...
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      Mentions: Maciej Wojtkowski Nicolaus Copernicus University Andrzej A. Kowalczyk

    17. Spectral Domain Optical Coherence Tomography as the Profilometric Tool for Examination of the Environmental Influence on Paintings on Canvas

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      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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      Mentions: Nicolaus Copernicus University Tomasz Bajraszewski Iwona Gorczynska

    20. Application of graphically oriented programming to imaging of structure deterioration of historic glass by optical coherence tomography

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      Application of graphically oriented programming to imaging of structure deterioration of historic glass by optical coherence tomography
      Optical Coherence Tomography (OCT) is an interferometric method utilising light of low temporal coherence for noninvasive structural imaging of objects weakly absorbing and scattering light. In this contribution, using various examples of images of objects made of glass affected by the atmospheric corrosion and/or by crizzling, we demonstrate a software developed in our laboratory specifically for 3D OCT imaging of samples with a fine structure. For this task we employed the OpenGL platform (Open Graphics Library), an Application Programming Interface (API) for writing applications dedicated to interactive 3D computer graphics. In our application we have utilized texture rendering with ...
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      Mentions: Nicolaus Copernicus University Piotr Targowski Marcin Sylwestrzak

    23. Optical Coherence Tomography for non-destructive investigations of structure of easel paintings

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      In this contribution the application of Optical Coherence Tomography (OCT) for non-invasive structural imaging of easel paintings will be presented. Since the technique permits imaging semi-transparent layers accessible for infrared light, the varnish and glaze layers are usually under investigation ... [Proc. SPIE 7139, 713916 (2008)] published Tue Dec 30, 2008.
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      Mentions: Nicolaus Copernicus University Piotr Targowski Marcin Sylwestrzak
    25. 1-24 of 30 1 2 »
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    1. (11 articles) Marcin Sylwestrzak
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