The 8th annual IBSim-4i conference featured two days of hands-on training and two days of diverse and engaging talks, covering a broad range of topics across the image-based simulation pipeline. These ranged from enhanced imaging techniques and segmentation benchmarks to novel simulation frameworks, with applications spanning biological systems to nuclear reactors.
Thanks to the support of our sponsor, 3Dmagination, two student awards were presented at IBSim-4i 2025.


Keynote Speakers
Professor Stepan V. Lomov, KU Leuven, Belgium
XCT imaging and image quantification of fibrous materials

Stepan V. Lomov (1955) graduated from School N30 in Leningrad (1972), Phys.-Mech of Leningrad Polytechnic Institute (1978). PhD on terminal ballistics (1985), Dr Hab. on textile materials science (1995), St. Petersburg State University of Technology and Design. Since 1999 works in KU Leuven, Belgium, Department of Materials Engineering, coordinator of the Composite Materials Group in 2013 – 2020, Toray Professor in 2015 – 2020. Professor Emeritus since 2020. The talk is mainly based on the research conducted in the Department of Materials Engineering, KU Leuven, in collaboration with other groups worldwide.
Professor Luisa Silva, Centrale Nantes, France

Luisa Silva’s research focus is on advanced numerical techniques used in High Performance Computing, including stable/stabilised immersed finite element methods, interface capturing through modified level-set or phase-field methods, anisotropic mesh adaptation, and developments in a massively parallel context.
Her expertise fields and software application developments are as follows:
– Finite elements and Eulerian approaches to solve thermomechanical multiphase problems.
– Parallel multiphase computational fluid dynamics of highly viscous to inviscid fluid flows and their phase changes.
– Direct 3D image-based numerical simulations (X-Ray tomography, point clouds, etc.) in several application fields.
– Development of software applications for urban environments, material forming processes and material structure development simulations.
Training Course Facilitators
Professor David Rousseau, Université d’Angers, France
A practical introduction to Deep learning applied to image processing

David Rousseau (Member, IEEE) was born in France, in 1973. He received the M.S. degree in physics and signal processing from the Institut de Recherche Coordination Acoustique et Musique, Paris, France, in 1996, and the Ph.D. degree in signal and image processing from the Université d’Angers, Angers, France, in 2004. From 2010 to 2017, he was a Full Professor of image processing applied to bioimaging with CREATIS, Université Lyon 1, Lyon, France. Since 2018, he has been heading the Bioimaging Research Group (ImHorPhen), Université d’Angers. His research interests include information sciences, machine learning-based computer vision, and their applications to life sciences.
Dr Félix Mercier, Université d’Angers, France
A practical introduction to Deep learning applied to image processing

Dr Chris Richardson, University of Cambridge, UK
FEniCS: a popular Open Source software package for Finite Element Analysis

Chris has been collaborating on research into modelling of continuum problems using the Finite Element Method (FEM) and development of the popular FEniCS software platform. Recent work is in partnership with other institutions through the UKRI ExCALIBUR Programme, and the Coupling, Synthesis and Performance Project and High Priority Use Case SysGenX. He is also working on benchmarking for High Performance Computing, GPU programming, and working with Rolls-Royce future systems team for engine design.
Additional Speakers
- Jérôme Adrien, CNRS, INSA Lyon, Université Claude Bernard Lyon 1
- Miraslau Barabash, University College London
- Michele Darrow, Rosalind Franklin Institute
- Simon Daubner, Imperial College London
- Lloyd Fletcher, UK Atomic Energy Authority
- Grammatiki Lioliou, University College London
- Nina Lassalle-Astis, Cetim
- Andrea Mazzolani, University College London
- Vincent Maes, University Of Bristol
- Hannah Robarts, UKRI-STFC
- Renee Taylor, University of Sheffield
- Léonard Turpin, Université De Bordeaux
- Franck Vidal, UKRI-STFC / Bangor University
- Nicola Wadeson, The University of Manchester
Poster Presenters
- Jean-Claude Bikaku, University of Leeds
- Ethan Edmunds, The University Of Sheffield
- Harriet Jones, UKRI-STFC
- Lizzie Mushangwe, University of Oxford
- Zeyan Wang, University College London
Awards

Congratulations to Harriet Jones of UK Research and Innovation–STFC, who was awarded the prize for best poster presentation for her work on “On-the-fly Meshing and Simulation: A code_saturne-based HPC Pipeline for Industrial XCT”.

Congratulations also to Salahedinne Madi of KU Leuven, who was awarded the prize for best oral presentation for his work on “Data-driven interpretation of strain localisation in fibre-reinforced composites: PCA of in situ XCT-DVC biaxial tests”.
Programme
Mon 20 Oct 2025
Day 1 – A practical introduction to Deep learning applied to image processing
- 09:30 – Registration and Refreshments
- 10:00 – Session 1: Introduction to machine learning
- 11:00 – Morning Break
- 11:15 – Session 2: Practical introduction to image classification with Deep learning
- 12:45 – Lunch
- 13:45 – Session 3: Practical introduction to image segmentation with Deep learning
- 15:15 – Afternoon Break
- 15:30 – Session 4: Practical introduction to object detection with Deep learning
- 17:00 – Drinks Reception
Tue 21 Oct 2025
Day 2 – FEniCS: a popular Open Source software package for Finite Element Analysis
- 09:30 – Arrival and Refreshments
- 10:00 – Session 1: Introduction to Finite Element and the FEniCS software package. Concept and capabilities. Installation. Using FEniCS in a browser with Colab – limitations
- 11:00 – Morning Break
- 11:15 – Session 2: Creating a model: geometric meshing, defining boundary conditions
- 12:45 – Lunch
- 13:45 – Session 3: Solving a practical problem: Linear elasticity in a spring
- 15:15 – Afternoon Break
- 15:30 – Session 4: Time-dependent problem: heat flow + other examples if time permitting
Wed 22 Oct 2025
Day 3 – User and Developer Forum
- 09:00 – Registration and Refreshments
- 10:00 – Welcome: Franck Vidal
- 10:15 – Keynote 1
Professor Stepan Lomov, KU Leuven
“XCT imaging and image quantification of fibrous materials”
- 11:00 – Session 1
Avery Pennington, Rosalind Franklin Institute
“Understanding the Structural Characteristics of the Placenta in Health and Disease”Renee Taylor, University of Sheffield
“Mesoscale Modelling of Sarcomere Structure and Function using Fluctuating Finite Element Analysis”David Rousseau, Université d’Angers
“On the use of synthetic plant for plant phenotyping based on computer vision” - 12:30 – Lunch
- 14:00 – Session 2
Posters - 14:30 – Afternoon Break
- 13:30 – Session 3
Léonard Turpin, Université De Bordeaux
“RadioSphere: Measuring the 3D kinematic of a dense cluster of spheres using two-view radiographs”Grammatiki Lioliou, University College London
“Hardware based phase-retrieval for hard x-ray imaging”Salaheddine Madi, KU Leuven
“Data-driven interpretation of strain localisation in fibre-reinforced composites: PCA of in situ XCT–DVC biaxial tests”Andrea Mazzolani, University College London
“A quantitative single-shot method for phase-contrast CT of multi-material samples” - 17:30 – Networking Reception and Buffet Dinner
Thu 23 Oct 2025
Day 4 – User and Developer Forum
- 09:00 – Arrival and Refreshments
- 09:30 – Keynote 2
Luisa Silva, Centrale Nantes
“Advanced numerical techniques used in High Performance Computing” - 10:15 – Session 4
Nicola Wadeson, University of Manchester
“A synergistic approach to X-ray CT and simulation at the NXCT” - 10:45 – Morning Break
- 11:15 – Session 5
Lloyd Fletcher, UK Atomic Energy Authority
“pyvale: An open-source toolbox for simulating imaging diagnostics applied to fusion component validation”Miraslau Barabash, University College London
“Image-Based 3D Modelling of Electrospun Lithium-Sulfur Cathodes” - 12:15 – Lunch
- 13:45 – Session 6
Simon Daubner, Imperial College London
“evoxels: A differentiable physics framework for voxel-based microstructure simulations”Hannah Robarts, Science and Technology Facilities Council
“Investigating geometric misalignments in parallel beam laminography using x-ray simulation” - 14:45 – Afternoon Break
- 15:15 – Session 7
Franck Vidal, UKRI-STFC / Bangor University
“Image-Based Meshing and CT Simulation of Corrosion Features from SEM Data”
Nina Lassalle-Astis, Cetim
“Realistic Synthetic CT Dataset for Automated Defect Inspections”Vincent Maes, University Of Bristol
“Benchmark Activity for micro-Structure Image-processing for Composites: Voids in 2D”
16:45 – Closing Remarks
Recordings [Day 3]

Recordings [Day 4]





















































































