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.