## ESI Workshop: Tomographic Reconstructions and their Startling Applications

The online Workshop at the Erwin Schrödinger International Institute for Mathematics and Physics (ESI) has just started. This is a two-weeks event with more than 50 international researchers participating.

In the first week (March, 15th – 18th), we have mainly talks from applied mathematicians presenting results on tomographic reconstructions while the second week (March, 23th – 25th) covers the practical applications of such methods in astronomy and medical imaging. See the full program here.

Registration is free. You just have to contact Peter Elbau.

## Mini-symposium in IPMS 2O21

The Tenth International Conference “Inverse Problems: Modeling and Simulation” (IPMS2021) has now been postponed to May 22 –28, 2022. The conference takes place in Malta.

We are happy to announce that we are organizing a mini-symposium entitled “Mathematical Methods in Tomography Across the Scales” related to our SFB. The speakers are members and associated members of the SFB.

## Sixth Internal Meeting: Research and future plans!

The 6th Internal Meeting took place virtually on November 30th and December 1st. Unfortunately, we could not meet in person due to the current circumstances but this online meeting gave us the opportunity to be all together in an online room.

In this meeting, very interesting talks were presented from our members and associate members of the SFB. The principal investigators presented the current status of research and future plans. Gabriele Steidl (TU Berlin, Germany) and Glenn van de Ven (University of Vienna) presented their research interests and ideas for future collaborations within the SFB.

Hopefully we can meet in person again in Obergurgl in March!

## SFB goes online!

The 5th Internal Meeting and the 4th Member Workshop took place online on September 1st and 2nd, respectively. After the cancellation of the previous meetings due to Covid-19, we managed to meet after a long time (at least online).

In the internal meeting, we had the opportunity to listen to interesting talks from external members of the SFB and participate in special sessions of the collaborating sub-projects. The member workshop consisted of member talks and talks from associated members with potential application to the scope of the SFB. The members elect Simon Hubmer and Ekaterina Sherina as the new member speaker and vice-speaker, respectively.

Hopefully we can meet in person again in Bad Mitterndorf at the end of November.

## Third internal meeting is finished! Report and pictures

The Third Internal Meeting of the SFB Project “Tomography Across the Scales” took place in Obergurgl (Tirol) from December 1 to 5, 2019. More than 30 researchers participated giving interesting talks and with their fruitful discussions helped the members of the SFB to continue their research in the right direction. Along with the 3rd meeting we had the PI and member meetings where we discussed the progress of the common projects and the organization of the future events. Continue reading “Third internal meeting is finished! Report and pictures”

## Second SFB Member Meeting

From September 10 to 13, 2019, the second SFB Member Workshop took place in Strobl am Wolfgangsee. This year, the regular and associated members presented recent results and discussed about future work. The PI’s were also invited to share their insights on the different projects and give status reports. Besides that, the members used the free time for a hike to the top of Bleckwand and a boat trip across the lake Wolfgang. It was another great meeting organized by Denise Schmutz.

## SFB goes to Banff, Canada

Otmar Scherzer was a member of the organizing committee of the “Reconstruction Methods for Inverse Problems” workshop in Banff, Canada, June 23-28, 2019. This workshop brought together researchers working on inverse problems coming from medical imaging, non destructive testing, computer vision and geophysics. The PI of sub-project “Quantitative Coupled Physics Imaging”, Peter Elbau and the post-doctoral researcher of the sub-project “Tomography with Uncertainties”, Ekaterina Sherina presented their recent work related to our SFB project.

## Above and beyond: SFB Member Workshop.

The first SFB Member Workshop took place in Altenmarkt im Pongau, September 12-14.  Members and external associated researchers had the opportunity to talk about first findings, current problems and their ideas for future investigations.  Beyond that the time was used for interesting discussions and the team building was elevated above the ground in a high rope course. As a guest Günter Auzinger, the European Science Slam winner 2018, performed his entertaining and informative act.

## Reconstruction Methods for Inverse Problems (19w5092)

at Banff, Alberta from Sunday, June 23 to Friday June 28, 2019

## Organizers

• Elena Beretta (NYU Abu Dhabi & Politecnico di Milano)
• Uri Ascher (University of British Columbia)
• Otmar Scherzer (University of Vienna)
• Luminita Vese (University of California, Los Angeles)

## Description

Inverse problems require to determine the cause from a set of indirect observations. Such problems appear in medical imaging, non destructive testing of materials, computerized tomography, source reconstructions in acoustics, computer vision and geophysics, to mention but a few. The 21st century is the golden age of computer imaging: Measurement devices have become enormously powerful and huge amounts of data are recorded at every eye glimpse. Moreover, computer technology has developed to such a high degree of efficiency that the evaluation of such an enormous amount of data has become possible *if* adequate mathematical and computational tools are used.

Recently, the community has been exposed to fundamentally new mathematical models (such as learning), which stimulated exciting theoretical developments and new computational algorithms for solving complicated large scale inverse problems. This workshop will survey modern and identify new mathematical and computational developments for tackling such problems.

more details

## The first SFB meeting was a success!

In the Obergurgl University Center, the initial SFB “Tomography across the scales” meeting took place, on March, 18-20.  It was attended by the Principal investigators, members, external associated researchers and candidates. The participants had the opportunity, for the first time, to meet all members and interact with people from different disciplines. The talks were interesting covering all “scales”, from mathematics and physics to medical- and bio-sciences.

Everyone is looking forward to the next meeting at the end of the year!

## Workshop “Inverse Problems in the Alps II”

Then, on March, 21-23, followed the more mathematical oriented workshop “Inverse Problems in the Alps II” co-organized by the SFB, the RICAM and the Doctoral Program “Computational Mathematics”. More than 30 participants enjoyed the talks in this wonderful location. This workshop celebrated also the 60th birthday ($$\varepsilon$$ far) of Elena Beretta,  Politecnico di Milano, Italy!