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14 Dec 2009

Volume 95, Issue 24, Articles (24xxxx)

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Appl. Phys. Lett. 95, 242102 (2009); http://dx.doi.org/10.1063/1.3272858 (3 pages)

W. H. Lim, F. A. Zwanenburg, H. Huebl, M. Möttönen, K. W. Chan, A. Morello, and A. S. Dzurak
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Boundary-enhanced region-of-interest image reconstruction in propagation-based x-ray phase-contrast tomography

Mark A. Anastasio, Daxin Shi, and Xiaochuan Pan

Appl. Phys. Lett. 95, 244101 (2009); http://dx.doi.org/10.1063/1.3254235 (3 pages) | Cited 1 time

Online Publication Date: 14 December 2009

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Show Abstract
Propagation-based phase-contrast tomography is an imaging method that can reconstruct the distribution of the three-dimensional complex-valued refractive index distribution of an object. In many applications, a boundary-enhanced image is sought that reveals the locations of boundaries in the refractive index distribution. In this letter, we demonstrate that within certain regions-of-interest, the three-dimensional Laplacian of the real-valued component of the refractive index distribution can be reconstructed from knowledge of truncated phase-contrast projection data. The proposed reconstruction algorithm is demonstrated by use of experimental measurement data.
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42.30.Wb Image reconstruction; tomography
42.25.Gy Edge and boundary effects; reflection and refraction
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