Tomographic X-ray data of a walnut
| dc.contributor.affiliation | University of Helsinki-Siltanen, Samuli | |
| dc.contributor.author | Siltanen, Samuli | |
| dc.date.accessioned | 2025-04-29T13:59:19Z | |
| dc.date.issued | 2015-02-11 | |
| dc.date.issued | 2015-02-11 | |
| dc.description | This is an open-access dataset of tomographic X-ray data of a walnut. The dataset consists of the X-ray sinogram of a single 2D slice of the walnut with three different resolutions and the corresponding measurement matrices modeling the linear operation of the X-ray transform. Each of these sinograms was obtained from a measured 120-projection fan-beam sinogram by down-sampling and taking logarithms. The original (measured) sinogram is also provided in its original form and resolution. In addition, a larger set of 1200 projections of the same walnut was measured and a high-resolution filtered back-projection reconstruction was computed from this data; both the sinogram and the FBP reconstruction are included in the dataset, the latter serving as a ground truth reconstruction. Documentation of the dataset is available at arxiv.org/abs/1502.04064. See also www.fips.fi/dataset.php. | |
| dc.identifier | https://doi.org/10.5281/zenodo.1254206 | |
| dc.identifier.uri | https://datakatalogi.helsinki.fi/handle/123456789/4160 | |
| dc.rights.license | cc-by-4.0 | |
| dc.subject | X-ray | |
| dc.subject | Radon transform | |
| dc.subject | inverse problem | |
| dc.title | Tomographic X-ray data of a walnut | |
| dc.type | dataset |