Resolution Enhancement by Variable Zoom Trajectory in X-Ray Computed Tomography

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F24%3APU151952" target="_blank" >RIV/00216305:26620/24:PU151952 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/article/10.1007/s10921-024-01093-6" target="_blank" >https://link.springer.com/article/10.1007/s10921-024-01093-6</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10921-024-01093-6" target="_blank" >10.1007/s10921-024-01093-6</a>

Result language
angličtina
Original language name
Resolution Enhancement by Variable Zoom Trajectory in X-Ray Computed Tomography
Original language description
Flat objects like electronic boards are challenging samples for high-resolution X-ray computed tomography scanning because their largest dimension significantly limits the magnification using circular trajectory scans. One way to improve spatial resolution for such samples is to utilize variable zoom trajectory. During variable zoom trajectory scanning, the source-to-object distance changes during the 360 degrees rotation to maximize the magnification in the projections. Here, we propose an automatic variable zoom trajectory generation algorithm for arbitrary object and region of interest (ROI). We analyze how such a trajectory can enhance resolution in different cases and how isotropic is the resolution in the reconstructed volume. We demonstrate that the resolution can be improved without destroying the sample. However, the improvement is manifested mainly in directions in which we achieved the highest magnification in the projection.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20501 - Materials engineering

Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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