Leader of the group Computational Imaging: Tristan van Leeuwen.


Our research group is developing the next generation of 3D imaging – enabling scientists to look further into objects of all kinds. Based on mathematics, algorithms and numerical solution techniques, our approach is interdisciplinary, combining aspects of mathematics, computer science and physics. We pride ourselves on the versatility of our solutions, and our algorithms can be applied to a wide range of imaging in science, medicine and industry. In Computational Imaging, it’s our goal to constantly push the boundaries of research. By combining advanced image acquisition, parameter estimation, and discrete tomography algorithms for example, we are able to develop workflows for 3D electron microscopy at atomic resolution.

More information on the Computational Imaging group at CWI.




No vacancies currently.


The Netherlands’ smallest supercomputer is here

The Netherlands’ smallest supercomputer is here

A team of Dutch scientists has built a supercomputer the size of four pizza boxes. The Little Green Machine II has the computing power of 10,000 PCs and will be used by researchers in oceanography, computer science, artificial intelligence, financial modeling and astronomy. CWI researchers Joost Batenburg and Kees Oosterlee, who were part of the development team, will use the machine for computational imaging and machine learning for time series respectively. The computer is based at Leiden University (the Netherlands) and developed with help from IBM.

The Netherlands’ smallest supercomputer is here - Read More…

Current events


  • 2022-11-10T09:30:00+01:00
  • 2022-11-11T18:00:00+01:00
November 10 Thursday

Start: 2022-11-10 09:30:00+01:00 End: 2022-11-11 18:00:00+01:00

Conference center de Werelt, Lunteren

The second annual meeting of the Dutch Inverse Problems Community will take place on 10-11 November 2022 in conference center de Werelt, Lunteren. A summary of last year’s event can be read here.



The registration is now open. Registration fees are expected to be around EUR 225 for 2-day attendance (including lunch, diner, and hotel), and EUR 50 for 1-day attendance for EUR 50 (including lunch). You will receive additional confirmation about the exact fees and payment details in september.

Preliminary program

Thursday November 10

Masterclasses on High Performance Computing and Inverse Problem Theory (preliminary abstracts are included below). The masterclasses will take in place in parallel and aim to give an in-depth overview and hands-on experience on the topic.


Friday November 11

Scientific talks, highlighting recent developments in Inverse Problems from a mathematical and practical point of view. The talks are by invitation, and selected to give a balanced perspective on theory and applications of inverse problems from both junior and senior researchers.



CWI Inverse Problems Seminar - Vanja Nikolic (Radboud U.)

  • 2022-07-12T11:00:00+02:00
  • 2022-07-12T12:00:00+02:00
July 12 Tuesday

Start: 2022-07-12 11:00:00+02:00 End: 2022-07-12 12:00:00+02:00


Relating models of nonlinear acoustics through singular limit analysis

Accurate mathematical modeling of nonlinear sound propagation is relevant in various applications of ultrasonic waves, ranging from imaging to lithotripsy and cancer therapy. In this talk, we will discuss how different (non)local PDE models arising in nonlinear acoustics can be related in the limit of relevant small parameters, such as sound diffusivity and thermal relaxation time. In particular, we will quantify the errors made when replacing (singularly) perturbed acoustic models with unperturbed ones. The talk is based on joint works with Barbara Kaltenbacher (University of Klagenfurt) and Mostafa Meliani (Radboud University).


Associated Members



Current projects with external funding

  • Mathematics and Algorithms for 3D Imaging of Dynamic Processes ()
  • Non-destructive 3D spectral imaging: applications in the poultry industry ()
  • Cambridge RG99590 AIO cancer imaging optimisation (Cancer Imaging Optimisation)
  • the Center for Optimal, Real-Time Machine Studies of the Explosive Universe (CORTEX)
  • CT for Art: from Images to Patterns (IMPACT4Art)
  • Translation-Driven Development of Deep Learning for Simultaneous Tomographic Image Reconstruction and Segmentation (None)
  • Deep learning and compressed sensing for ultrasonic nondestructive testin (PPS Applus RTD)
  • Team Science Award
  • Universal Three-dimensiOnal Passport for process Individualization in Agriculture (UTOPIA)
  • Mathematics and Algorithms for 3D Imaging of Dynamic Processes / OIO positie Graas (Wiskundeclusters)
  • Enabling X-ray CT based Industry 4.0 process chains by training Next Generation research experts (xCTing)

Related partners

  • ABN AMRO Bank
  • Fraunhofer Gesellschaft
  • IBM
  • Katholieke Universiteit Nijmegen
  • Naturalis
  • Netherlands eScience Center
  • Rijksmuseum Amsterdam
  • Universiteit Wageningen
  • University of Cambridge
  • Nederland Instituut voor Radio Astronomie
  • Katholieke Universiteit Leuven
  • Rheinisch-Westfaelische Technische Hochschule Aachen
  • SURFsara B.V.
  • Universiteit Utrecht
  • Universiteit van Amsterdam