2 papers
physics.optics2023
The Bragg demagnifier: X-ray imaging with kilometer propagation distance within a meter
Rebecca Spiecker, Martin Spiecker, Adyasha Biswal +2
We introduce a new X-ray imaging technique to facilitate propagation-based phase contrast of large, centimeter-sized samples. The diffracted X-ray wavefield behind the sample is de…
cs.CV2023
Shot Noise Reduction in Radiographic and Tomographic Multi-Channel Imaging with Self-Supervised Deep Learning
Yaroslav Zharov, Evelina Ametova, Rebecca Spiecker +3
Noise is an important issue for radiographic and tomographic imaging techniques. It becomes particularly critical in applications where additional constraints force a strong reduct…