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. <strong>The dataset is structured as follows:</strong> <em>voxel_data/clean</em> 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. <em>sinograms/clean</em> 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. <em>sinograms/noisy</em> Tilt series of projection images corrupted with Poisson noise and an additional spatially uniform background noise. <em>projections/clean</em> Projection images extracted from the clean tilt series at 0 degrees tilt angle. <em>projections/noisy</em> Projection images extracted from the noisy tilt series at 0 degrees tilt angle. <em>images/clean</em> Visualizations of the clean projections as PNG images with the intensity range adjusted to 0..255 <em>images/noisy</em> Visualizations of the noisy projections as PNG images with the intensity range adjusted to 0..255 <strong>Data formats</strong> Voxel data, sinograms and projection images are stored in a compressed Matlab binary MAT format. Images are stores in PNG format.