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An iterative method for robust in-line phase contrast imaging

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posted on 2023-02-13, 03:00 authored by Aidan J Carroll, Grant van RiessenGrant van Riessen, Eugeniu BalaurEugeniu Balaur, Igor P Dolbnya, Giang N Tran, Andrew PeeleAndrew Peele
We present an iterative near-field in-line phase contrast method that allows quantitative determination of the thickness of an object given the refractive index of the sample material. The iterative method allows for quantitative phase contrast imaging in regimes where the contrast transfer function (CTF) and transport of intensity equation (TIE) cannot be applied. Further, the nature of the iterative scheme offers more flexibility and potentially allows more high-resolution image reconstructions when compared to TIE method and less artefacts when compared to the CTF method. While, not addressed here, extension of our approach in future work to broadband illumination will also be straightforward as the wavelength dependence of the refractive index of an object can be readily incorporated into the iterative approach.

History

Publication Date

2016-04-04

Journal

New Journal of Physics

Volume

18

Issue

4

Article Number

043003

Pagination

7p. (p. 1-7)

Publisher

Institute of Physics Publishing

ISSN

1367-2630

Rights Statement

© 2016 IOP Publishing Ltd and Deutsche Physikalische Gesellschaft. Original content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI.

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