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PhD Defense: Lisa Krainz

We are pleased to announce that Lisa Krainz, PhD student in the subproject Multi-Modal Imaging, has successfully defended her PhD thesis titled “Quantitative Parameter Extraction from Optical Coherence Tomography and Elastography” on 22 September 2025.

Lisa’s doctoral studies were supervised by Prof. Wolfgang Drexler, Head of the Center for Medical Physics and Biomedical Engineering at the Medical University of Vienna.

Congratulations Lisa from the SFB team! We wish you all the best for your future.

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Eighth SFB Member Meeting

From 9 to 12 September 2025, the Eighth SFB Member Meeting of the SFB Project “Tomography Across the Scales” took place at the Hotel Royal in Bad Ischl, Upper Austria.

This final meeting provided a great opportunity for SFB members to present exciting new research topics to a technical audience and foster discussions on connected research areas. The presentations were both insightful and engaging, and the group also enjoyed an excursion and enjoy the Upper-Austria warm hospitality.

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Otmar gave a presentation at the AIP 2025 conference

Professor Otmar Scherzer, the speaker of the SFB project “Tomography across the scales”, presented a talk titled Regularization of Nonlinear Inverse Problems – From Functional Analysis to Data-Driven Approaches at the mini-symposium “Fortieth Anniversary of the Journal Inverse Problems” at the 12th AIP 2025. The biannual Applied Inverse Problems (AIP) conference is one of the biggest conferences in its field. This year, it was held in Rio de Janeiro, Brazil, from 28 July to 1 August.

You can watch a recording of the talk here:

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Seeing Inside: Exploring Computed Tomography with Kids

This year, Axel Kittenberger, Denise Schmutz, and Noemi Naujoks once again participated in the Vienna Children’s University, this time with two workshops, each tailored for 20 children aged 7 to 9. Building on last year’s popular topic, we brought back Paula the Sloth to help explain the fascinating world of computed tomography in a playful and accessible way.

The children explored the fundamentals of tomography through a series of interactive stations. These included quizzes, experiments with light and shadow, paint-by-numbers, and exercises demonstrating how mathematics enables us to visualize the inside of objects.

We were excited to see how quickly the children understood complex ideas when given the chance to explore them in a fun way.

Want to test your own knowledge? Try our tomography quiz!

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SFB Conference “Tomography across the scales”


The SFB Conference “Tomography across the scales” took place from the 16th to the 20th of June at the beautiful Lake Wolfgangsee venue close to Strobl.


We were delighted to welcome many distinguished speakers from renowned international universities. The meeting provided a valuable opportunity to foster interdisciplinary communication and facilitate networking between tomography experts from various disciplines, including astronomy, inverse problems, medicine, biology, and physics.

During the free afternoon, some participants took part in an excursion to the lake Schwarzensee, where they enjoyed the breeze and the view of the lake, while others took the cog railway up Schafberg to enjoy the panorama.

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A successful 17th internal SFB meeting

From the 3rd to the 6th of December the 17th internal SFB meeting – winter version – took place at the Obergurgl University Centre in Tyrol, Austria. We were very pleased to welcome as invited speakers Giovanni S. Alberti (University of Genoa, Italy), Bernhard Baumann (Medical University of Innsbruck, Austria), and Sebastian Kamann (Liverpool John Moores University), along with early career researchers from different EU and non-EU institutions. The meeting was a great opportunity to foster interdisciplinary communication, promote networking between researchers and experts in the field of tomography, and enjoy the beautiful landscapes of the Tyrolean Alps. The SFB members had the opportunity to present their work and welcome new members.

We look forward to the first SFB Conference of the project “Tomography across the scales”, which will take place in Strobl, Austria, in 2025. Stay tuned!

Group picture at the Obergurgl University Centre.

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7th SFB Member Meeting

Presentations and group activities.

From 9 to 12 September 2024, the 7th SFB member meeting took place in Bad Goisern, Austria, an intense four-day workshop, where PhD students and Postdoctoral Researchers from across our network came together to exchange ideas and discuss cutting-edge topics in science.

The program was enriched by the brilliant presentations of the participants, ranging from theoretical advancements in their field, to communication in science and third mission, to cutting-edge and intriguing topics in science.

Each session sparked lively discussions, driven by the curiosity and insight of the attendees. The setting allowed for a perfect balance of structured talks and informal conversations, fostering a collaborative spirit. Every participant contributed to the dynamic atmosphere, bringing unique perspectives and skills to the table.

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Science Meets Kids: The Fascinating World of Computed Tomography

During the 22nd Vienna Children’s University, young students aged 7 to 12 had the opportunity to dive into the fascinating world of computed tomography. Noemi Naujoks, Axel Kittenberger and Denise Schmutz gave an engaging lecture featuring Paula the Sloth as a fun and relatable example for the children.

The lecture was held twice to accommodate the interest, with around 180 children attending both sessions. The interactive format provided the children with not only theoretical knowledge but also practical experiences. Through experiments, a quiz, and special math exercises, the children learned how computed tomography works and the role mathematics plays in it.

For those who missed the event or want to test their knowledge, you can try our tomography quiz

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New publication in Nature Communications combining acoustic trapping and OCT

The paper titled “Ultrasound-induced reorientation for multi-angle optical coherence tomography” by Mia Kvåle Løvmo, Shiyu Deng, Simon Moser, Rainer Leitgeb, Wolfgang Drexler and Monika Ritsch-Marte was recently published in Nature Communications.

The subprojects in Multi-Modal Imaging and Imaging of Trapped Particles joined forces and developed a novel strategy for acquiring multi-angle OCT by acoustic object reorientation.

Along with a model-based algorithm to fuse the multi-angle data from a priori unknown illumination angles, the strategy enables 3D reconstruction of samples such as embryos and organoids.  

Update June 3, 2024: We are pleased to announce that the paper published in Nature Communications was recently cited in the national newspaper Der Standard. The link to the article can be found here.

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International Day of Mathematics

«Playing with Math» was the theme of this year’s International Day of Mathematics on March 14th. Several scientific institutions, including the University of Vienna, the Vienna University of Technology, and the Austrian Academy of Sciences, collaborated to explore intriguing mathematical concepts in a playful manner.

Axel Kittenberger and Noemi Naujoks demonstrated how a computer tomograph works and explained the fascinating mathematics behind it. They showcased the Origami Tomograph developed by CSC, which reconstructs a transparent 3D object from light projections. A special highlight was a quiz that encouraged participants to play the role of a tomograph and guess the underlying object from projection data.