1. Articles from Peter TOMLINS

    1-3 of 3
    1. Scanning Methods And Apparatus

      Scanning Methods And Apparatus

      There is provided a method of identifying a region of interest in sample. The method comprises obtaining one or more optical coherence tomography (OCT) axial scans at one or more locations over the sample surface; for each axial scan, determining an integrated total of OCT intensity over the depth of the scan, and determining an attenuation depth into the sample at which a predetermined fraction of the integrated total is reached; and determining the from the one or more attenuation depths a region of interest in the sample. Generally, the method does not rely the accuracy (or inaccuracy) of any ...

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    2. Multi-system comparison of optical coherence tomography performance with point spread function phantoms

      Multi-system comparison of optical coherence tomography performance with point spread function phantoms

      Point spread function (PSF) phantoms based on unstructured distributions of sub-resolution particles in a transparent matrix have proven effective for evaluating resolution and its spatial variation in optical coherence tomography (OCT) systems. Measurements based on PSF phantoms have the potential to become a standard test method for consistent, objective and quantitative inter-comparison of OCT system performance. Towards this end, we have evaluated three PSF phantoms and investigated their ability to compare the performance of four OCT systems. The phantoms are based on 260-nm-diameter gold nanoshells, submicron-diameter iron oxide particles and 1.5-micron-diameter silica particles. The OCT systems included spectral-domain and ...

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    3. Scanning Methods And Apparatus

      Scanning Methods And Apparatus

      There is provided a method of identifying a region of interest in sample. The method comprises obtaining one or more optical coherence tomography (OCT) axial scans at one or more locations over the sample surface; for each axial scan, determining an integrated total of OCT intensity over the depth of the scan, and determining an attenuation depth into the sample at which a predetermined fraction of the integrated total is reached; and determining from the one or more attenuation depths a region of interest in the sample. Generally, the method does not rely the accuracy (or inaccuracy) of any particular ...

      Read Full Article
    1-3 of 3
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  2. Topics in the News

    1. (3 articles) University of London
    2. (3 articles) Pete H. Tomlins
    3. (2 articles) Farida Fortune
    4. (2 articles) Oluyori K. Adegun
    5. (1 articles) University of Maryland
    6. (1 articles) UK National Physical Laboratory
    7. (1 articles) FDA
    8. (1 articles) Rice University
    9. (1 articles) Peter D. Woolliams
    10. (1 articles) Yu Chen
    11. (1 articles) UCLA
    12. (1 articles) University of Wisconsin
    13. (1 articles) University of St. Andrews
    14. (1 articles) Duke University
    15. (1 articles) Kishan Dholakia
    16. (1 articles) Cynthia A. Toth
    17. (1 articles) Richard B. Rosen
    18. (1 articles) Optovue
    19. (1 articles) Leica
    20. (1 articles) Heidelberg Engineering
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