Format

Send to

Choose Destination
Opt Express. 2011 May 23;19(11):10359-76. doi: 10.1364/OE.19.010359.

Phase retrieval in X-ray phase-contrast imaging suitable for tomography.

Author information

1
Biomedical and X-Ray Physics, Royal Institute of Technology, AlbaNova University Center, SE-10691Stockholm, Sweden. anna.burvall@biox.kth.se

Abstract

In-line phase-contrast X-ray imaging provides images where both absorption and refraction contribute. For quantitative analysis of these images, the phase needs to be retrieved numerically. There are many phase-retrieval methods available. Those suitable for phase-contrast tomography, i.e., non-iterative phase-retrieval methods that use only one image at each projection angle, all follow the same pattern though derived in different ways. We outline this pattern and use it to compare the methods to each other, considering only phase-retrieval performance and not the additional effects of tomographic reconstruction. We also outline derivations, approximations and assumptions, and show which methods are similar or identical and how they relate to each other. A simple scheme for choosing reconstruction method is presented, and numerical phase-retrieval performed for all methods.

PMID:
21643293
[Indexed for MEDLINE]

Supplemental Content

Loading ...
Support Center