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


E. Janssens, D. Pelt, J. De Beenhouwer, M. Van Dael, P. Verboven, B. Nicolai, and J. Sijbers, "Fast Neural Network Based X-Ray Tomography of Fruit on a Conveyor Belt", Chemical Engineering Transactions, vol. 44, Milano, Italy, pp. 181-186, 2015.
D. Kazantsev, G. Van Eyndhoven, W. R. B. Lionheart, P. J. Withers, K. J. Dobson, S. A. McDonald, R. Atwood, and P. D. Lee, "Employing temporal self-similarity across the entire time domain in computed tomography reconstruction", Philosophical Transactions of the Royal Society of London A: Mathematical, Physical and Engineering Sciences, vol. 373, no. 2043: The Royal Society, 2015.