Forskning
Min hovedforskningsinteresse er i numeriske metoder for differensiallikninger. Jeg er spesielt interessert i metoder som bevarer underliggende geometriske egenskaper (f.eks. symplektiske metoder og volumbevarende metoder).
Jeg er også interessert i tverrfaglig bruk av matematikk og numerikk, spesielt rettet mot medisinske anvendelser, f.eks. bildeanalyse og modellering av fysiologiske prosesser eller maskinlæring for bildeanalyse og diagnostikk.
Undervisning
MAT101(Brukerkurs i matematikk)
MAT121(Lineær algebra/Linear algebra)
MNF130(Diskrete strukturar/Discrete mathematics)
MAT160(Beregningsalgoritmer/Numerical analysis 1)
MAT213(Funkskjonsteori/Complex analysis)
MAT251(Klassisk og beregningsorientert mekanikk/ Classical and computational mechanics)
MAT261(Numerisk lineæralgebra/Numerial linear algebra)
MAT262(Bildebehandling/Image processing)
MNF262(Innføringskurs i bildebehandling og visualisering)
Master students:
- Sjur Kvammen (2006) Geometric Integration Methods for Denoising Tensor-valued Images , University of Bergen
- Kristin Eik (2008) Om fluidregistrering for medisinske bilete , University of Bergen
- Eyram Schwinger (2009) Renal Function Estimation using Magnetic Resonance Images, University of Bergen
- Gleb Berdnikov (2011) Image registration with volume constraints, University of Bergen
- Jon Nyfløtt, (2011) "Comparison of distance measures in multimodal image registration", University of Bergen
- Anna Katharina Trull (2013) "Estimation of parameter stability in some compartment modeling in DCE-MRI", University of Lübeck.
- Milo Viviani (2015), "Geometric integration of the point vortex equation on a rotating sphere", Universita' degli studi di Pavia.
- Andrea Raffo (2016), "Comparmental analysis of 4D MRI data. Application to renal physiology", Universita' degli studi di Genova.
- Will Haugland (2017), "Real-time image based stabilization for Dynamic Contrast Enhanced Ultrasound", Universitetet i Bergen
- Thorstein Rykkje (2018), "Lie groups and the principle of virtual work applied to systems of linked rigid bodies", University of Bergen
- Nikolai Sætran (2018), "Lagrangian dynamics for solid multi-body systems with the Moving Frame formalism", University of Bergen
- Håkon Gimse, (2019), Convolutional Neural Networks for Malaria Detection, University of Bergen
- Fredrick Pfeil, (2019), A higher order IMEX for highly oscillatory differential equations, University of Bergen
- Ilaria Astrid Bartsch
PhD Student:
- Are Losnegård (2009- ), co-supervisor
- Xue Huyian (2009-2013), "Volume preserving integrators for ordinary differential equations". UiB
- Eyram Schwinger (2011-2015) Mathematical methods for ship detection from Terra-SAR imaging. University of Ghana, Legon
- Tiril Pedersen Gurholt (2013) "Image processing, filtering and segmentation of data-sets for reservoir simulations", co-supervisor, UiB.
- Ulin Nuha Abdul Qohar (2017-2023) "Modeling and simulation of blood circulation and perfusion", UiB
- Geir K. Nilsen (2018-2022) "Epistemic Uncertainty Quantification in Deep Learning by the Delta Method", UiB
- I-Hao Chen (2022-2025), "Digitizing Fish Feeding Behaviour - A step towards feeding automation in aquaculture", UiB & NORCE
Research associates:
- Åsmund Kjørstad, image segmentation of the kidney
- Erik Hanson, medical image processing
- Aurora Campo, image processing for biology, stereological methods.
Postdocs:
- Ilan Degani (2006-2009), quantum control.
- Erlend Hodneland (2010-2011), image registration.
MAT292projects:
- 2009: Erik Natvig, On the optimal control of quantum systems
- 2009: Børge Garpestad, Applications of differential geometry in computer graphics
- 2010: Steinar Børge, Pharmacokinetic and compartment modelling
Publikasjoner
Publikasjoner fra MathSciNet (krever tilgang).
Prosjekter
Cody: Computational Dynamics (2006-2009)
NFR no. 191178/V30, GeNuIn: Geometric Numeric Integration in Applications. (NFR, 2009-2012)
MedViz: From Vision to Decision
CRiSP (EU, 2011-2013)
NFR no. 208081 DAADppp Bergen-Lübeck, "Explicit Modelling in DCE-MRI" (2011-2012)
UiB-Meltzer "Imagina -- Multimodal image alignment" (2011-2012)
UiB-SPIRE "Modelling and Quantification in DCE-MRI" (2013-2014)
NFR no. 262203 Frinatek "Flow-based interpretation of dynamic contrast-enhanced MRI"