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Journal of the Optical Society of America A

Journal of the Optical Society of America A

| OPTICS, IMAGE SCIENCE, AND VISION

  • Editor: Franco Gori
  • Vol. 29, Iss. 12 — Dec. 1, 2012
  • pp: 2667–2672

Comparison of two single-image phase-retrieval algorithms for in-line x-ray phase-contrast imaging

Matthieu N. Boone, Wouter Devulder, Manuel Dierick, Loes Brabant, Elin Pauwels, and Luc Van Hoorebeke  »View Author Affiliations


JOSA A, Vol. 29, Issue 12, pp. 2667-2672 (2012)
http://dx.doi.org/10.1364/JOSAA.29.002667


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Abstract

The attenuation of x-rays in a material forms the basis of x-ray radiography and tomography. By measuring the transmission of the x-rays over a large amount of raypaths, the three-dimensional (3D) distribution of the x-ray linear attenuation coefficient can be reconstructed in a 3D volume. In x-ray microtomography (μCT), however, the x-ray refraction yields a significant signal in the transmission image and the 3D distribution of the refractive index can be reconstructed in a 3D volume. To do so, several methods exist, on both a hardware and software level. In this paper, we compare two similar software methods, the modified Bronnikov algorithm and the simultaneous phase-and-amplitude retrieval. The first method assumes a pure phase object, whereas the latter assumes a homogeneous object. Although these assumptions seem very restrictive, both methods have proven to yield good results on experimental data.

© 2012 Optical Society of America

OCIS Codes
(070.0070) Fourier optics and signal processing : Fourier optics and signal processing
(100.3190) Image processing : Inverse problems
(340.7440) X-ray optics : X-ray imaging

ToC Category:
X-ray Optics

History
Original Manuscript: August 3, 2012
Revised Manuscript: October 26, 2012
Manuscript Accepted: October 28, 2012
Published: November 28, 2012

Virtual Issues
Vol. 8, Iss. 1 Virtual Journal for Biomedical Optics

Citation
Matthieu N. Boone, Wouter Devulder, Manuel Dierick, Loes Brabant, Elin Pauwels, and Luc Van Hoorebeke, "Comparison of two single-image phase-retrieval algorithms for in-line x-ray phase-contrast imaging," J. Opt. Soc. Am. A 29, 2667-2672 (2012)
http://www.opticsinfobase.org/josaa/abstract.cfm?URI=josaa-29-12-2667

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