Phase retrieval in X-ray phase-contrast imaging suitable for tomography
2011 (English)In: Optics Express, ISSN 1094-4087, Vol. 19, no 11, 10359-10376 p.Article in journal (Refereed) Published
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.
Place, publisher, year, edition, pages
2011. Vol. 19, no 11, 10359-10376 p.
Atom and Molecular Physics and Optics
IdentifiersURN: urn:nbn:se:kth:diva-34364DOI: 10.1364/OE.19.010359ISI: 000290852800033PubMedID: 21643293ScopusID: 2-s2.0-79957611071OAI: oai:DiVA.org:kth-34364DiVA: diva2:429747
FunderSwedish Research Council
QC 201107052011-07-052011-06-072015-03-31Bibliographically approved