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Picture by Jorge Cham,

the creator of the PHD comics.

Matti Lassas

Academy professor
Department of Mathematics and Statistics
University of Helsinki


  • Our collaboration paloDEx has launched a three dimensional X-ray imaging system based on Statistical Inversion (SI). Have a look on its demo on the KaVo Imaging web pages.
Centre of Excellence

I am director of the Finnish Centre of Excellence in Inverse Modelling and Imaging. The status of Centre of Excellence is granted by Academy of Finland for the period 2018-2025. This centre continues the Finnish Centre of Excellence in Inverse Problems Research in 2006-2011 and 2012-2017.


I am editor of journals Inverse Problems and Imaging and Abstract and Applied Analysis. Submissions to these journals can be done via the web-pages of the journals.

Research and vita

Lecture notes and slides of talks

On theses and graduate studies

  • If you need a topic of a master theses, please contact me by e-mail.
  • If you are interested to start graduate studies on inverse problems, please contact us by e-mail.

Research seminars

Links to Inverse problems

Other links

Contact information

Post address:
Department of Mathematics and Statistics
P.O. Box 68 (Gustaf Hällströmin katu 2b)
FI-00014 University of Helsinki

Phone: +358 50 5674417
Mobile phone: +358 50 5674417

E-mail: Matti.Lassasathelsinki.fi

Matti Lassas <Matti.Lassasathelsinki.fi>

June 23, 2020