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



F. Bleichrodt, J. De Beenhouwer, J. Sijbers, and K. J. Batenburg, "Aligning Projection Images from Binary Volumes", Fundamenta Informaticae, vol. 135, pp. 1-22, 2014.
W. Van Aarle, K. J. Batenburg, G. Van Gompel, E. Van de Casteele, and J. Sijbers, "Super-resolution for computed tomography based on discrete tomography", IEEE Transactions on Image Processing, vol. 23, issue 3, pp. 1181 - 1193, 2014. Download paper (10.34 MB)
G. Van Eyndhoven, K. J. Batenburg, and J. Sijbers, "Region-based iterative reconstruction of structurally changing objects in CT", IEEE Transactions on Image Processing, vol. 23, issue 2, pp. 909-919, 2014.
A. Dabravolski, K. J. Batenburg, and J. Sijbers, "Adaptive zooming in X-ray computed tomography", Journal of X-Ray Science and Technology, vol. 22, no. 1, pp. 77-89, 2014. Download paper (3.77 MB)