19 citations · 31 across the 5 of their papers we have counts for
5 papers
Inferring parameters of prey switching in a plankton 1 predator--2 prey system with a linear preference tradeoff
Sofia H. Piltz, Lauri Harhanen, Mason A. Porter +1
We construct two ordinary-differential-equation models of a predator feeding adaptively on two prey types, and we evaluate the models' ability to fit data on freshwater plankton. W…
Edge-promoting reconstruction of absorption and diffusivity in optical tomography
Antti Hannukainen, Lauri Harhanen, Nuutti Hyvönen +1
In optical tomography a physical body is illuminated with near-infrared light and the resulting outward photon flux is measured at the object boundary. The goal is to reconstruct i…
Tomographic X-ray data of a walnut
Keijo Hämäläinen, Lauri Harhanen, Aki Kallonen +3
This is the documentation of the tomographic X-ray data of a walnut made available at http://www.fips.fi/dataset.php . The data can be freely used for scientific purposes with appr…
Edge-enhancing reconstruction algorithm for three-dimensional electrical impedance tomography
Lauri Harhanen, Nuutti Hyvönen, Helle Majander +1
Electrical impedance tomography is an imaging modality for extracting information on the conductivity distribution inside a physical body from boundary measurements of current and…
A priorconditioned LSQR algorithm for linear ill-posed problems with edge-preserving regularization
Simon R. Arridge, Marta M. Betcke, Lauri Harhanen
This article presents a method for solving large-scale linear inverse problems regular- ized with a nonlinear, edge-preserving penalty term such as the total variation or Perona-Ma…