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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Bayer, Florian L. Weber, Thomas Michel, Thilo Maier, Andreas Riess, Christian P. Anton, Gisela Hu, Shiyang |
| Description | Author Affiliation: Bayer FL ( Erlangen Centre for Astroparticle Physics and.); Hu S ( Pattern Recognition Lab, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany.); Maier A ( Pattern Recognition Lab, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany.); Weber T ( Erlangen Centre for Astroparticle Physics and.); Anton G ( Erlangen Centre for Astroparticle Physics and.); Michel T ( Erlangen Centre for Astroparticle Physics and.); Riess CP ( Pattern Recognition Lab, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany christian.riess@fau.de.); |
| Abstract | Grating-based X-ray dark-field imaging is a novel technique for obtaining image contrast for object structures at size scales below setup resolution. Such an approach appears particularly beneficial for medical imaging and nondestructive testing. It has already been shown that the dark-field signal depends on the direction of observation. However, up to now, algorithms for fully recovering the orientation dependence in a tomographic volume are still unexplored. In this publication, we propose a reconstruction method for grating-based X-ray dark-field tomography, which models the orientation-dependent signal as an additional observable from a standard tomographic scan. In detail, we extend the tomographic volume to a tensorial set of voxel data, containing the local orientation and contributions to dark-field scattering. In our experiments, we present the first results of several test specimens exhibiting a heterogeneous composition in microstructure, which demonstrates the diagnostic potential of the method. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 35 |
| Volume Number | 111 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 2014-09-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Interferometry Instrumentation Models, Theoretical Tomography Algorithms Anisotropy Arachis Hypogaea Ultrastructure Biomedical Technology Phantoms, Imaging Radiographic Image Interpretation, Computer-Assisted Scattering, Radiation X-Rays Research Support, Non-U.S. Gov't Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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