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Journal of the Optical Society of America A

Journal of the Optical Society of America A


  • Editor: Franco Gori
  • Vol. 30, Iss. 3 — Mar. 1, 2013
  • pp: 455–461

Postprocessing method for reducing phase effects in reconstructed microcomputed-tomography data

Erik L. G. Wernersson, Matthieu N. Boone, Jan Van den Bulcke, Luc Van Hoorebeke, and Cris L. Luengo Hendriks  »View Author Affiliations

JOSA A, Vol. 30, Issue 3, pp. 455-461 (2013)

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With increased resolution in x-ray computed tomography, refraction adds increasingly to the attenuation signal. Though potentially beneficial, the artifacts caused by refraction often need to be removed from the image. In this paper, we propose a postprocessing method, based on deconvolution, that is able to remove these artifacts after conventional reconstruction. This method poses two advantages over existing projection-based (preprocessing) phase-retrieval or phase-removal algorithms. First, evaluation of the parameters can be done very quickly, improving the overall speed of the method. Second, postprocessing methods can be applied when projection data is not available, which occurs in several commercial systems with closed software or when projection data has been deleted. It is shown that the proposed method performs comparably to state-of-the-art methods in terms of image quality.

© 2013 Optical Society of America

OCIS Codes
(100.1830) Image processing : Deconvolution
(100.3190) Image processing : Inverse problems
(100.6890) Image processing : Three-dimensional image processing
(100.6950) Image processing : Tomographic image processing
(110.7440) Imaging systems : X-ray imaging
(110.6955) Imaging systems : Tomographic imaging

ToC Category:
Image Processing

Original Manuscript: October 3, 2012
Revised Manuscript: December 4, 2012
Manuscript Accepted: January 14, 2013
Published: February 21, 2013

Virtual Issues
Vol. 8, Iss. 4 Virtual Journal for Biomedical Optics

Erik L. G. Wernersson, Matthieu N. Boone, Jan Van den Bulcke, Luc Van Hoorebeke, and Cris L. Luengo Hendriks, "Postprocessing method for reducing phase effects in reconstructed microcomputed-tomography data," J. Opt. Soc. Am. A 30, 455-461 (2013)

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