Tomography is an imaging technique that combines projections taken from different directions into a reconstruction of the interior of a patient or an object. The ASTRA research group (“All Scales Tomographic Reconstruction Antwerp”) of imec-Vision Lab develops tomographic reconstruction algorithms for electron, X-ray, neutron, and magnetic resonance imaging. The ASTRA group developed the ASTRA-Toolbox, which is an open source, GPU accelerated software platform for the development of novel tomographic reconstruction methods; it can be downloaded from

Key expertises:

  • Discrete tomography
  • X-ray tomography for non-standard acquisition geometries
  • Electron tomography
  • Dynamic (4D) tomography

Journal publications

In Press


J. Cant, "Iterative reconstruction for mobile chest tomosynthesis", Dept. of Physics, vol. PhD in Sciences/Physics, 2017.


W J. Palenstijn, J. Bédorf, J. Sijbers, and K. J. Batenburg, "A distributed ASTRA Toolbox", Advanced Structural and Chemical Imaging, vol. 2, issue 19, 2016. Download paper (2.7 MB)