KIT | KIT-Bibliothek | Impressum | Datenschutz

Boundary value problem for phase retrieval from unidirectional X-ray differential phase images

Gasilov, S.; Mittone, A.; Horng, A.; Bravin, A.; Baumbach, T.; Geith, T.; Reiser, M.; Coan, P.

The phase retrieval problem can be reduced to the second order partial differential equation. In order to retrieve the absolute values of the X-ray phase and to minimize the reconstruction artifacts we defined the mixed inhomogeneous boundary condition using available a priori information about the sample. Finite element technique was used to solve the boundary value problem. The approach is validated on numerical and experimental phantoms. In order to demonstrate a possible application of the method, we have processed an entire tomographic set of differential phase images and estimated the magnitude of the refractive index decrement for some tissues inside complex biomedical samples.

Open Access Logo

Volltext §
DOI: 10.5445/IR/1000048267
DOI: 10.1364/OE.23.013294
Zitationen: 2
Web of Science
Zitationen: 2
Zitationen: 2
Cover der Publikation
Zugehörige Institution(en) am KIT ANKA - die Synchrotronstrahlungsquelle am KIT (ANKA)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2015
Sprache Englisch
Identifikator ISSN: 1094-4087
KITopen-ID: 1000048267
HGF-Programm 56.03.30 (POF III, LK 01) Soft Matter, Health and Life Sciences
Erschienen in Optics express
Verlag The Optical Society of America (OSA)
Band 23
Heft 10
Seiten 13294-13308
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Nachgewiesen in Dimensions
Web of Science
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
KITopen Landing Page