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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
• Gel phantom data for dynamic X-ray tomography

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

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:

Dataset:

Tomographic X-ray data of a walnut

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

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:

Dataset:

Tomographic X-ray data of a carved cheese

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

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:

Dataset:

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

Alexander Meaney, Zenith Purisha and Samuli Siltanen

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:

Dataset:

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

Salla Latva-Äijö, Alexander Meaney and Samuli Siltanen

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:

Dataset:

Gel phantom data for dynamic X-ray tomography

Tommi Heikkilä, Hanna Help and Alexander Meaney

This is an open-access dataset of tomographic X-ray data of a dynamic agarose-gel phantom perfused with a liquid contrast agent. The dataset consists of 17 consecutive X-ray measurements of a 2D slice of the gel phantom. This data is provided in two resolutions and stored in a special CT-data structure containing the metadata of the measurement setup.

In addition a denser projection sampling of the first time step, and a very dense sampling of an addition 18th time step is provided as a complementary data.

The data does not contain the corresponding forward operators as is, but allows for easy creation of computationally efficient matrix-free operators and FBP reconstructions, both on CPUs and on CUDA cabable GPUs. The use of said operators is also demonstrated with short example codes.

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

Documentation at arXiv:

Dataset: