Workshop on Computation of Free Boundaries and Optimal Shapes, Lamoura, France, 1996

EQUADIFF 9, Conference on Differential Equations and their Applications, Brno, Czech Republic, 1997

ALGORITMY'97, Conference on Scientific Computing, West Tatra Mountains, Zuberec, Slovakia, 1997

Geometrical questions in partial differential equations, Oberwolfach, Germany, 1998

Workshop on Image Processing and Analysis, Graz, Austria, 1999

4th International Congress on Industrial and Applied Mathematics - ICIAM'99, minisymposium on Computational Image Analysis, Edinburgh, Scotland, 1999

Workshop on Numerical Methods for Viscosity Solutions and Applications, Heraklion, Crete, 1999

Interphase'99, Freiburg, Germany, 1999

SIMAI 2000, V. congresso nationale della Societa Italiana di Matematica Applicata e Industriale, minisymposium on Free Boundary Problems, Ischia Porto, Italy, 2000

Interphase 2000, Berlin, Germany, 2000

NATO-Advanced Study Institute workshop Modern methods in Scientific Computing and Applications, Montreal, Canada, 2001

European Conference on Numerical Mathematics ENUMATH 2001, minisymposium Numerical methods for singular free boundary problems and Hamilton-Jacobi equations, Ischia Porto, Italy, 2001

SIMAI 2002, V. congresso nationale della Societa Italiana di Matematica Applicata e Industriale, minisymposium on Biomedical Image Analysis, Chia Laguna, Sardinia, 2002

Mathematics for Biology, Bedlewo, Poland, 2002

Worshop on Visual Modelling, Warszawa, Poland, 2002

Challenges in Scientific Computing, Berlin, Germany, 2002

Advances in Numerical Algorithms, Graz, Austria, 2003

Modeling-Mathematics-Computations, Yokohama, Japan, 2004

Numerical analysis of transport phenomena in complex domains, Warwick, UK, 2004

INTERPHASE 2004, Roma, Italy, 2004

COE Workshop on Numerical Analysis, Fukuoka, Japan, 2005

SciCADE - Conference on Scientific Computing and Differential Equations, Minisymposium on Numerical Methods for Free Boundary Problems, Nagoya, Japan, 2005

4th JSIAM-SIMAI Japan-Italian Seminar on Industrial and Applied Mathematics, Hayama, Japan, 2005

EQUADIFF 11, Conference on differential equations and their applications - Minisymposium on Finite volume methods for parabolic equations, Bratislava, Slovakia, 2005

Workshop on Anisotropic Motion Laws, Oberwolfach, Germany, 2006

Congress of Engineering in Biology and Medicine Society, EMBS 2006 - Tutorial on level set methods in 3D image segmentation, New York, USA, 2006

Czech-Japanese seminar on Applied Mathematics, Prague, Czech republic, 2006

ESF workshop on PDE Approaches to Image Processing, Cologne, Germany, 2006

EQUADIFF 11, Vienna, Austria, 2007

Workshop on Bioimaging II / PDEs, Special Semester on Quantitative Biology analyzed by Mathematical Methods, Linz, Austria, 2007

Cummulative workshop of the Special Semester on Quantitative Biology analyzed by Mathematical Methods, Obergurgl, Austria, 2008

Workshop on discretization methods for viscous flows, Porquerolles, France, June 2009

Conference on Variational PDEs and level set methods in image processing and shape optimization 2010, Obergurgl, Austria, April 2010

Conference ISCAMI 2010, Bratislava, May 2010

5th international conference on Inverse problems: modeling and simulations, Antalyia, Turkey, May 2010

Workshop on Scientific Computing, Decin, Czech republic, June 2010

BioImage Analysis Workshop, ITK Karlsruhe, October 2010

Workshop on the 5th anniversary of the Jindrich Necas Center for Mathematical Modelling, Prague, Czech republic, December 2010

RIMS Workshop on Mathematical and numerical analysis for interface motion arising in nonlinear phenomena, Kyoto, Japan, July 2011

XXV IUGG General Assembly : Earth on the Edge: Science for a Sustainable Planet, Melbourne, Australia, July 2011

ENUMATH 2011, Leicester, UK, September 2011

Efficient mesh adaptation methods for evolution problems: theory and applications, Workshop at Wolfgang Pauli Institute, Vienna, Austria, December 2011

Second Portuguese Meeting in Bioengineering, Coimbra, Portugal, February 2012

Conference on Present chalenges of mathematics in oncology and biology of cancer: modeling and mathematical analysis, Marseille, France, March 2012

Third workshop Aplikovana matematika, Horní Beèva, Czech Republic, January 2013

VIII Hotine Marussi Symposium on Mathematical Geodesy, Roma, Italy, June 2013

Numerics in image processing, Bologna, Italy, January 2014

FVCA7 - Finite Volumes in Complex Applications, Berlin, June 2014

Institute of Applied Mathematics, University of Freiburg, Germany (1993) invitation by G.Dziuk

Department of Mathematics, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University, Prague (1994) invitation by M.Benes

Department of Applied and Numerical Mathematics, Technical University of Liberec, Czech Republic (1994) invitation by J.Maryska

Interdisciplinary Center for Scientific Computing (IWR), University of Heidelberg, Germany (1996) invitation by W.Jäger

Institute of Applied Mathematics, Bundeswehr University Munchen, Germany (1996) invitation by U.Hornung

Department of Applied Mathematics, University of Erlangen-Nurenberg, Germany (1996) invitation by P.Knabner

Institute of Mathematics, University of Cologne, Germany (1996) invitation by B.Kawohl

Laboratoty for Mathematics and Physics, University of Toulouse, France (1997) invitation by D.Pinchon

Laboratory of Numerical Analysis, University Paris-Sud, France (1997) invitation by D.Hilhorst

Department of Electronics, Informatics and Systems, University of Bologna, Italy (1997) invitation by C.Lamberti

Department of Mathematics, University of Bologna, Italy (1997) invitation by F.Sgallari

Department of Mathematics, University of Florence, Italy (1997) invitation by A.Fassano

Institute of Applied Mathematics, University of Freiburg, Germany (1998) invitation by E.Bänsch

Institute of Applied Mathematics, University of Bonn, Germany (1998) invitation by M.Rumpf

Mathematical Institute, University of Basel, Switzerland (1998) invitation by M.Flucher

Laboratory of Numerical Analysis, University Paris-Sud, France (1998) invitation by D.Hilhorst

School of Mathematics, Georgia Institute of Technology, Atlanta, USA (1998) invitation by G.Meyer

Department of Mathematics, University of Pittsburgh, USA (1998) invitation by W.Layton

Department of Mathematics, University of Bologna, Italy (1999) invitation by F. Sgallari

Department of Mathematics and Physics, Universita del Sacro Cuore, Brescia, Italy (1999) invitation by M.Paolini

Department of Mathematics and Computer Science, University of Mannheim, Germany (1999) invitation by J.Weickert

Department of Computer Science, Faculty of Electrical Engineering, Czech Technical University, Prague (1999) invitation by M.Navara

Department of Mathematics, Universita Roma La Sapienza (2000) invitation by M.Falcone

Department of Mathematics, Universita Roma Tor Vergata (2000) invitation by M.Falcone

Weierstrass Institute for Applied Analysis and Stochastic, Berlin (2000) invitation by E.Bänsch

Institute of Applied Mathematics, University of Freiburg, Germany (2001) invitation by G.Dziuk

Institute of Applied Mathematics, University of Bonn, Germany (2001) invitation by M.Rumpf

Department of Numerical Mathematics, Charles University, Prague, Czech Republic (2001) invitation by M.Feistauer

ICM, Institute of Mathematical and Computational Modelling, Warsaw University, Warsaw, Poland (2001) invitation by M.Niezgodka

Weierstrass Institute for Applied Analysis and Stochastic, Berlin (2001) invitation by E.Bänsch

CIRAM, University of Bologna, Italy (2002) invitation by F. Sgallari

Institute for Computer Vision, Technical University of Graz, Austria (2002) invitation by A.Ferko

ICM, Institute of Mathematical and Computational Modelling, Warsaw University, Warsaw, Poland (2002) invitation by M.Niezgodka

Department of Mathematics, University of Duisburg, Germany (2003) invitation by M.Rumpf

Mathematical Institute, University of Oxford, Applied Analysis and Mechanics Seminar, UK (2003) invitation by B.Kirchheim

Department of Mathematics, Faculty of Nuclear Sciences and Physical Engineering, Czech Technical University, Prague (2003) invitation by M.Benes

Department of Mathematics, Keio University, Yokohama, Japan (2004) invitation by N.Kikuchi

Department of Mathematics, Tokyo University, Japan (2004) invitation by H.Matano

Department of Mathematics, Vienna University of Technology, Austria (2004) invitation by C. Schmeizer

Kolloqium of the Johan Radon Institute for Computational and Applied Mathematics, Linz, Austria (2004) invitation by H. Engl, M. Burger

Seminar InfMath Imaging, University of Innsbruck, Austria, January 2008, invitation by O.Scherzer

Applied Mathematics Seminar, University of Erlangen-Nuerberg, Germany, April 2008, invitation by E.Baensch and M.Fried

Seminar Numerical Methods for PDEs, University of Ghent, Belgium, April 2008, invitation by M.Slodicka

Colloqium in Applied Mathematics, University of Muenster, Germany, July 2008 invitation by M.Ohlberger

Oberseminar in Applied Mathematics, University of Muenster, Germany, October 2008, invitation by M.Ohlberger

Jindrich Necas Center for Mathematical Modelling,FJFI CVUT, Praha, June 2010, invitation by M.Benes

HCI Colloquium on Image Processing, University of Heidelberg, October 2010, invitation by C.Schnoer

Seminar day on Numerical Methods in Environment and Image Processing, University Paris-Sud, Orsay, France, February 2011, invitation by D.Hilhorst

ICES Seminar, University of Texas at Austin, USA, March 2011, invitation by C.Dawson

Pixel Club lecture, Technion, Haifa, Israel, November 2011, invitation by Ron Kimmel