Tomographic X-ray data of time-dependent 3D cross phantom

<p>This is the documentation of the tomographic X-ray data of a dynamic cross&nbsp;phantom made available at http://www.fips.fi/dataset.php. The data can be freely used for scientific purposes with appropriate references to the data and to this document in http://arxiv.org/. The data set consists of (1) the X-ray sinogram with 16 or 30 time frames (depending on resolution) of&nbsp;2D slices of the cross phantom,&nbsp;made by crossing aluminum and graphite sticks&nbsp;in melted&nbsp;candle wax and (2) the corresponding static and dynamic measurement matrices modeling the linear operation of the X-ray transform. Each of these sinograms was obtained from a measured 360-projection fan-beam sinogram by down-sampling and taking logarithms. The original (measured) sinogram is also provided in its original form and resolution.</p> <p>This new version contains added file&nbsp;<a href="https://zenodo.org/api/files/5c00de09-bb57-4c9e-9beb-00c63358de3c/DataStatic_560x60.mat?versionId=1e53d43d-d999-435e-bb1c-8297cf32c984">DataStatic_560x60.mat&nbsp;</a>&nbsp;with 80 time frames and&nbsp;<a href="https://zenodo.org/api/files/5c00de09-bb57-4c9e-9beb-00c63358de3c/DataStatic_1120x60.mat?versionId=afded407-6c88-4880-b427-fe7fd09306f4">DataStatic_1120x60.mat&nbsp;</a>&nbsp;with 230 time frames. You can run these files with the code example 2, which computes a Tikhonov regularized reconstruction using&nbsp;conjugate gradient algorithm.</p>