Open X-ray Tomographic Datasets

This page contains following datasets:

Tomographic X-ray data of a lotus root slice filled with different chemical elements
Tomographic X-ray data of a walnut
Tomographic X-ray data of a carved cheese
Tomographic X-ray data of 3D emoji
Tomographic X-ray data of 3D cross

Tomographic X-ray data of a lotus root slice filled with different chemical elements

Tatiana A. Bubba, Andreas Hauptmann, Simo Huotari, Juho Rimpeläinen and Samuli Siltanen

A picture of two reconstructions from the data by two different methods. — Reconstructions from data by MATLAB routines Lotus_Landweber.m (120 projection angles, on the left) and Lotus_Tikhonov.m (20 projection angles).

This is an open-access dataset of tomographic X-ray data of a slice of a lotus root. The dataset consists of

the X-ray sinogram of a single 2D slice of the lotus root with two different resolutions, and
the corresponding measurement matrices modeling the linear operation of the X-ray transform.

Also MATLAB code for reconstructions using filtered back-projection, Landweber iteration, and Tikhonov regularization are provided.

The data is licensed under an open data license (CC BY 4.0) and it is hosted on Zenodo.

An informal video report of the data measurement session is available hera as a video:

Documentation at arXiv:

https://arxiv.org/abs/1609.07299

Dataset:

https://doi.org/10.5281/zenodo.1254204

Tomographic X-ray data of a walnut

Keijo Hämäläinen, Lauri Harhanen, Aki Kallonen, Antti Kujanpää, Esa Niemi and Samuli Siltanen

A picture of three reconstructions from the data using different numbers of projections. — "Ground truth" reconstruction computed from 1200 projections using FBP (left), Tikhonov reconstruction from 120 projections (middle), and Tikhonov reconstruction from 20 projections.

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.

The data is licensed under an open data license (CC BY 4.0) and it is hosted on Zenodo.

Documentation at arXiv:

https://arxiv.org/abs/1502.04064

Dataset:

https://doi.org/10.5281/zenodo.1254206

Tomographic X-ray data of a carved cheese

Tatiana A. Bubba, Markus Juvonen, Jonatan Lehtonen, Maximilian März, Alexander Meaney, Zenith Purisha and Samuli Siltanen

Image of a carved cheese and two of its reconstructions using 45 and 15 projections. — Image of a carved cheese and its reconstructions from 45 projections (middle) and 15 projections.

This is an open-access dataset of tomographic X-ray data of a carved cheese. The dataset consists of

the X-ray sinogram of a single 2D slice of the cheese slice with three different resolutions, and
the corresponding measurement matrices modeling the linear operation of the X-ray transform.

Each of the 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.

The data is licensed under an open data license (CC BY 4.0) and it is hosted on Zenodo.

An informal video report of the data measurement session is available here as a video:

Documentation at arXiv:

https://arxiv.org/abs/1705.05732

Dataset:

https://doi.org/10.5281/zenodo.1254210

Tomographic X-ray data of a time-dependent emoji phantom

Alexander Meaney, Zenith Purisha and Samuli Siltanen

Pictures of emoji and their reconstructions. — Pictures of emoji and their reconstructions from X-ray data.

This is an open access dataset of tomographic X-ray data of emoji phantom. The dataset consists of

the X-ray sinogram of a single 2D slice of 33 emoji faces (contains 15 different emoji faces) made by small squared ceramic stones, and
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 60-projection fan-beam sinogram by down-sampling and taking logarithms. The original (measured) sinogram is also provided in its original form and resolution.

The data is licenced under an open data licence (CC BY 4.0) and it is hosted on Zenodo.

Documentation at arXiv:

https://arxiv.org/abs/1802.09397

Dataset:

https://doi.org/10.5281/zenodo.1183532

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

Salla Latva-Äijö, Alexander Meaney and Samuli Siltanen

Picture of a cross and its reconstruction. — The phantom in the preparation phase (left), the ready-made phantom on the sample holder (middle), and two examples of the resulting 2D projection images (right).

This is an open access dataset of measured tomographic X-ray data of a 3D cross phantom. The dataset consists of

the X-ray sinogram with 16 or 30 time frames (depending on the resolution) of 2D slices of the phantom, and
the static and dynamic measurement matrices modelling 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.

The data is licenced under an open data licence (CC BY 4.0) and it is hosted on Zenodo.

Documentation at arXiv:

https://arxiv.org/abs/1809.00166

Dataset:

https://doi.org/10.5281/zenodo.1446516