EMAT Simulated 3D Nanoparticle Structures Dataset

This dataset contains 1000 simulated nanoparticle-like 3D structures and noisy EDX-like elemental maps based on them. These data are intended to be used for quantitative analysis of data processing methods in (EDX) tomography of nanoparticles and training the data-driven approaches for these tasks.

The dataset is structured as follows:

• voxel_data/clean

3D voxel grid representation of the simulated nanoparticles. Voxel intensities are adjusted so that the total intensity equals 10³. All 3D structures have unique identifiers in 0..999 range. The data derived from a 3D structure preserves this unique identifier.

• sinograms/clean

Tilt series of projection images obtained from the corresponding 3D structures over an angular range of -75..75 degrees with a tilt step of 10 degrees to simulate a typical tilt series used in EDX tomography. Total intensity in each projection image equals 10³.

• sinograms/noisy

Tilt series of projection images corrupted with Poisson noise and an additional spatially uniform background noise. 

• projections/clean

Projection images extracted from the clean tilt series at 0 degrees tilt angle.

• projections/noisy

Projection images extracted from the noisy tilt series at 0 degrees tilt angle.

• images/clean

Visualizations of the clean projections as PNG images with the intensity range adjusted to 0..255

• images/noisy

Visualizations of the noisy projections as PNG images with the intensity range adjusted to 0..255

Data formats

Voxel data, sinograms and projection images are stored in a compressed Matlab binary MAT format. Images are stores in PNG format.