Tomographic X-Ray Data of Carved Cheese with Multiple Resolutions

An open-access dataset of tomographic X-ray data for a carved cheese. It contains the X-ray sinogram of a single 2D slice at three different resolutions, along with corresponding measurement matrices modeling the X-ray transform. The dataset was created by Tatiana A. Bubba at the University of Helsinki and is documented in an associated arXiv paper.

Use Cases

• Testing tomographic reconstruction algorithms based on the provided sinogram data.
• Benchmarking image resolution techniques using the three different resolution versions of the slice.
• Modeling and validating linear forward operators in X-ray tomography based on the included measurement matrices.
• Studying the effects of down-sampling and logarithmic transformation on fan-beam sinogram data.

Strengths

• Includes the original measured 360-projection fan-beam sinogram alongside processed versions.
• Provides corresponding measurement matrices that model the linear operation of the X-ray transform.
• Offers data for a single 2D slice at three different resolutions for comparative analysis.

Limitations

• Row count and dataset size are unknown, which may limit suitability assessment.
• Column-level documentation is absent; field semantics must be inferred after download.
• Last update date is unknown; freshness unverified.

Provenance

Source

University of Helsinki

Collection Method

X-ray tomography of a carved cheese slice, with sinograms obtained from a measured 360-projection fan-beam scan and subsequently down-sampled.