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University of Helsinki Inverse Problems Seminar 

Tuesday 04.04. Hanne Kekkonen (University of Warwick), Exactum B121, 2pm-4pm:
Variational regularization with large noise

(Cancelled) Tuesday 28.03. Teemu Saksala (University of Helsinki), Exactum TBA, 2pm-4pm:

Past seminars

Tuesday 21.03., Exactum B121, 2pm-4pm:
Remo Kretschmann (University of Duisburg-Essen): Bayesian inverse problems with Laplacian noise
Matteo Santacesaria (Politecnico di Milano), Recent progress on infinite dimensional compressed sensing

Tuesday 14.03. Peter Dendooven (University of Groningen / University of Helsinki), Exactum D123, 2pm-4pm:
Gamma-ray imaging for verification of particle beam therapy

Monday 13.02.2017 Aki Pulkkinen (University of Eastern Finland), Exactum B120, 2pm-4pm
Photographing ultrasound

Tuesday 07.02.2017 Andreas Hauptmann (University of Helsinki), Exactum B121, 2pm-3pm:
Developments in Inverse Problems Research in Japan

Tuesday 31.01.2017 Danny Smyl (University of Eastern Finland), Exactum B121, 2pm-4pm:
Using structural prior information and stacking to image cracking

Thursday 26.01.2017 Elena Morotti (University of Padua), Exactum C122, 2pm-4pm:
Digital breast tomosynthesis: a 3d medical example of sparse tomography

Tuesday 15.11.2016 Samuli Siltanen (University of Helsinki), Exactum C122, 2pm-4pm:
A gentle introduction to D-bar

Monday 07.11.2016 Tony Liimatainen (University of Helsinki), Exactum B120, 1pm-2pm:
The Calderón problem for the conformal Laplacian

Tuesday 11.10.2016 Mach Nguyet Minh (University of Helsinki), Exactum C123, 2pm-4pm:
Monotonicity-based regularization in Electrical Impedance Tomography

Wednesday 5.10.2016 Tanja Tarvainen (University of Eastern Finland), Exactum C123, 2pm-4pm:
Quantitative photoacoustic tomography

Thursday 15.9.2016, Exactum CK111, 2pm-4pm:
Lena Frerking (University of Münster), Variational Motion Estimation for Cell Migration
Hendrik Dirks (University of Münster), Optical-flow based video super-resolution

Tuesday 30.8.2016 Tatiana Bubba (University of Modena and Reggio Emilia), Exactum B120, 2pm-4pm:
The region-of-interest CT problem: iterative sheparlet-based regularization

Thursday 25.8.2016 Christian Clason (University of Duisburg-Essen), Exactum C123, 2pm-4pm:
Discrete regularization of parameter identification problems

Wednesday 10.8.2016, Exactum B120, 2pm-4pm, we have two speakers:

David Villacis (Escuela Politécnica Nacional Quito, Equador) Solving bilevel optimization problems in image processing via inexact trust region methods
Matthew Dunlop (University of Warwick), Bayesian hierarchical methods in inverse problems

Monday 13.6.2016 Jarno Vanhatalo (University of Helsinki), Exactum B120, 2pm-4pm:
Gaussian process applications and their implementation in spatial and spatio-temporal problems

Wednesday 15.6.2016 Christina Brandt (University of Eastern Finland), Exactum C124, 2pm-3pm:
Image reconstruction techniques for 4D magnetic particle imaging

Thursday 09.6.2016 Peter Perry (University of Kentucky), Exactum B120, 1pm-2pm:
The Inverse Scattering Method in 50 minutes

Tuesday 17.5.2016 Exactum B120, 2pm-4pm, we have two speakers:
Antti Kujanpää (University of Helsinki): On Nonholonomic Mechanics and Lagrangian Reduction
Jussi Korpela (University of Helsinki): Regularization Strategy for Inverse Problem for 1+1 Dimensional Wave Equation

Monday 9.5.2016 Liliana Borcea (University of Michigan), Exactum B120, 2pm-4pm:
Electromagnetic wave propagation in random media.

Tuesday 2.5.2016 Andreas Hauptmann (University of Helsinki), Exactum B120, 2pm-4pm:
Partial-boundary data in electrical impedance tomography

Tuesday 26.4.2016 Teemu Helenius (University of Helsinki), Exactum B120, 2pm-4pm:
The Geometric Theory of Shape

Thursday 21.4.2016 Peter Malin, Exactum B120, 2pm-4pm:
Seismic Inversion

Tuesday 1.3.2016 Teemu Saksala (University of Helsinki), Exactum DK117, 2pm-4pm:
How to find a metric tensor from the solution mapping of a wave equation on a Riemannian manifold?

Tuesday 16.2.2016 Zenith Purisha (University of Helsinki), Exactum B120, 2pm-4pm:
Tomographic Reconstruction using Adaptive MCMC in terms of Parametric Curve

Tuesday 9.2.2016 Samuli Siltanen (University of Helsinki), Exactum B120, 2pm-4pm:
Numerical Computation of Complex Geometric Optics Solutions

Tuesday 1.12.2015 Kaloyan Marinov (Technical University of Denmark), Exactum D123, 2pm-4pm:
Acousto-electric tomography in 2D

Tuesday 24.11.2015 Henri Riihimäki (Technical University of Tampere), Exactum D123, 2pm-4pm:
Introducing the ideas in topological data analysis

Tuesday 10.11.2015 Joonas Ilmavirta (University of Jyväskylä), Exactum D123, 2pm-4pm:
Ray tomography on manifolds

Tuesday 13.10.2015 Allan Greenleaf (University of Rochester), Exactum C123, 2pm-4pm:
Virtual hybrid edge detection

Tuesday 29.9.2015 Samuli Siltanen (University of Helsinki), Exactum C123, 2pm-4pm:
On A. Nachman's article: "Global uniqueness for a two-dimensional inverse boundary value problem", 1996.

Tuesday 16.6.2015 Naiara Arrizabalaga (University of the Basque Country), Exactum B120:
Dirac operators with measure-valued potentials: point spectrum and confinement

Monday 18.5.2015 Aingeru Fernández-Bertolin (University of the Basque Country), Exactum B120:
Discrete Uncertainty Principles and Schrödinger evolutions
(notice special time: 10-12 AM)

Tuesday 12.5.2015 Teemu Saksala (University of Helsinki), Exactum C124:
Inverse problem on travel time differences

Tuesday 5.5.2015 (Exactum C124) We have two speakers:

Lena Frerking (University of Münster): Variational motion estimation for flow fields with smooth transitions and sharp edges
Gerardo Del Muro González (University of Kuopio): Total Variation and Cross gradient constrains in Multi-Frequency EIT

Tuesday 14.4.2015 Daniela Saxenhuber (Johannes Kepler University Linz), Exactum C124:
Atmospheric tomography in astronomical adaptive optics

Tuesday 7.4.2015 Tony Liimatainen (University of Jyväskylä), Exactum C124:
On the nonexistence of limiting Carleman weights and n-harmonic coordinates

Tuesday 31.3.2015 (Exactum C124) We have two speakers:
Jukka Huhtamäki (Eigenor Oy): A few inversion problems from radar signal processing and computed tomography
Lauri Mustonen (Aalto University): Spectral approximations for iterative inversion methods: A parabolic case

Tuesday 24.3.2015 Miren Zubeldia (University of Helsinki), Exactum C124:
Transmission eigenvalues for Magnetic Schrödinger operator

Tuesday 17.3.2015 Zenith Purisha (University of Helsinki), Exactum B121:
Tomographic reconstruction using MCMC in terms of vector graphic format

Tuesday 3.3.2015 Pedro Caro (ICMAT, Spain), Exactum C124:
Global uniqueness for the Calderón problem with Lipschitz conductivities

Tuesday 24.2.2015 Daniel Gerth (Johannes Kepler University Linz), Exactum C124,
this talk includes two topics: The method of the approximate Inverse for Atmospheric Tomography and On Fractional Tikhonov Regularization

Tuesday 17.2.2015 Lauri Oksanen (University College London), Exactum C124:
Computing the boundary distance representation of a Riemannian manifold from its hyperbolic Neumann-to-Dirichlet Map

Tuesday 10.2.2015 Jussi Korpela (University of Helsinki), Exactum C124: 
Regularization strategy based on iterative time-reversal control method using Neumann boundary source functions


See a list of talks given in IP seminar before 2015.

Three thematic semesters were held in 2006-2007:
IP seminar 2007 fall (theme: the time-dependent approach to inverse scattering)
IP seminar 2007 spring (theme: boundary rigidity)
IP seminar 2006 fall (theme: boundary rigidity)

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