Photon-counting super-sampled imaging using piezoelectric motors
Year: 2024
Type: conference-paper
Abstract: : Spatial resolution and dose efficiency are crucial in radiographic imaging. This project explores resolution enhancement using super-sampling with photon-counting detectors (PCD) equipped with high-Z sensors. These spectroscopic X-ray detectors promise to transform radiographic and CT imaging, aiming to improve future pre-clinical and clinical applications. A PCD-based micro-CT system was modified for piezo-driven super-sampling (SS). Precise image registration and iterative deconvolution techniques were used. Resolution was measured using a slanted edge and a bar pattern phantom. While artifacts due to sensor inhomogeneities were noted, a threefold improvement in spatial resolution was achieved.
Authors: Fix, N., Helin, H., Billoud, T., von Elverfeldt, D., Goldschmidtboeing, F., Weigt, M., Pichotka, M.
Institutions: University of Freiburg, University Medical Center Freiburg
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W6911739473
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