Author name: Samuli Siltanen

I am a Finnish mathematician mainly interested in inverse problems of medical imaging. The goal of my scientific work is to design efficient numerical methods that have a sound mathematical basis and solve real-world problems.

Applied Inverse Problems Conference 2023

The AIP conference is the main scientific event in the field of inverse problems. It is held every two years, apart from a break during the Covid19 pandemic. Actually I have organized one myself, in 2015 in Helsinki. This year the conference was held in Göttingen, Germany, a classic scientific hub before the second world

Read more

ICIAM 2023 conference in Tokyo

The International Congress on Industrial and Applied Mathematics (ICIAM) was held in Tokyo in late August 2023. I participated it together with many students and colleagues from University of Helsinki. This congress happens every 4 years, and it is the main scientific conference in my field of research. It was nice for me to go

Read more

IWOTA 2023 Conference in Helsinki

I had the honor of opening the legendary IWOTA conference at University of Helsinki on July 31, 2023. You can read my opening address below, including a JOKE! I gave my own talk as well in the minisymposium on inverse problems, organized by Lauri Oksanen and Tony Liimatainen. Here are my slides (PDF 16MB) in

Read more


Asian spiders

I have lived in Japan and travelled there quite a lot. So I have several spider samples from there. Other Asian destinations of mine with spider photo activity include Hong Kong and Indonesia. My dream is to find some day a jumping spider from the Portia genus. They are known to be super-smart!

Read more

Tomography 104: simulating sinograms

I just published a new video in my lecture series on X-ray tomography (link). There I show how to use Matlab to simulate basic tomographic things such as sinograms and filtered back-projection algorithms. I also give an introductory discussion of measurement noise and how to supress it with a low-pass filter. This is how it

Read more

Tomography in Oberwolfach

I was lucky to be invited again to the legendary Mathematisches Forschungsinstitut Oberwolfach (MFO). This time the topic of the five-day workshop was tomography, or mathematical slice imaging. How delightful it was to meet collaborators and share ideas after the pandemic years of online meetings!

Read more