Ville Kolehmainen
Deputy Head of Department
Professor
Department of Technical Physics, Faculty of Science, Forestry and Technology
[email protected] | +358 40 355 2054
The research areas of the team of Prof. Kolehmainen are computational inverse problems and uncertainty quantification. The main part of the research is on development of mathematical models and computational inverse problems methods for image reconstruction in medical tomography imaging techniques such as X-ray tomography, diffuse tomography and MRI. The research team actively collaborates with system experts and clinical specialists on development of novel imaging techniques, which typically involve fusion of different types of imaging data and lead to large scale 3D or 4D imaging with sparse measurement data
Research groups
Projects
Publications
156/156 items-
Anatomy-guided multi-resolution image reconstruction in PET
Lesonen, P; Wettenhovi, VV; Kolehmainen, V; Pulkkinen, A; Vauhkonen, M. 2024. Physics in medicine and biology. 69: . 105023 A1 Journal article (refereed), original research -
Post-process correction improves the accuracy of satellite PM2.5 retrievals
Porcheddu, Andrea; Kolehmainen, Ville; Lähivaara, Timo; Lipponen, Antti. 2024. Atmospheric measurement techniques. 17: 5747-5764 A1 Journal article (refereed), original research -
Simulation-based feasibility study of monitoring of intracerebral hemorrhages and detection of secondary hemorrhages using electrical impedance tomography
Toivanen, Jussi; Paldanius, Antti; Dekdouk, Bachir; Candiani, Valentina; Hänninen, Asko; Savolainen, Tuomo; Strbian, Daniel; Forss, Nina; Hyvönen, Nuutti; Hyttinen, Jari; Kolehmainen, Ville. 2024. Journal of medical imaging. 11: . 014502 A1 Journal article (refereed), original research -
Dual-Modal Electrical Imaging of Two-Phase Flow—Experimental Evaluation of the State Estimation Approach
Arif, M. Ziaul; Seppänen, Aku; Kolehmainen, Ville; Vauhkonen, Marko. 2023. Sensors. 23: A1 Journal article (refereed), original research -
Fast Compressed Sensing of 3D Radial T1 Mapping with Different Sparse and Low-Rank Models
Paajanen, Antti; Hanhela, Matti; Hänninen, Nina; Nykänen, Olli; Kolehmainen, Ville; Nissi, Mikko J. 2023. Journal of imaging. 9: A1 Journal article (refereed), original research -
Structural similarity driven joint reconstruction of conductivity and sound speed in EIT/UTT dual-modality tomography
Liang, Guanghui; Kolehmainen, Ville; Vauhkonen, Marko; Dong, Feng. 2023. Inverse problems. 39: A1 Journal article (refereed), original research -
Comparison of Three Different Projectors for Cone Beam CT
Wettenhovi, Ville Veikko; Hietanen, Ari; Niinimäki, Kati; Varjonen, Vesa; Vauhkonen, Marko; Kolehmainen, Ville. Teoksessa: (toim.) , 2022. 2022 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC). s. 1-7. IEEE A4 Conference proceedings -
Deep-learning-based post-process correction of the aerosol parameters in the high-resolution Sentinel-3 Level-2 Synergy product
Lipponen, Antti; Reinvall, Jaakko; Väisänen, Arttu; Taskinen, Henri; Lähivaara, Timo; Sogacheva, Larisa; Kolmonen, Pekka; Lehtinen, Kari; Arola, Antti; Kolehmainen, Ville. 2022. Atmospheric measurement techniques. 15: 895-914 A1 Journal article (refereed), original research -
Embedded Quantitative MRI T1ρ Mapping Using Non-Linear Primal-Dual Proximal Splitting
Hanhela, Matti; Paajanen, Antti; Nissi, Mikko J; Kolehmainen, Ville. 2022. Journal of imaging. 8: A1 Journal article (refereed), original research -
Fast absolute 3D CGO-based electrical impedance tomography on experimental tank data
Hamilton, Sarah J; Muller, Peter A; Isaacson, David; Kolehmainen, Ville; Newell, Jonathan C; Rajabi Shishvan, Omid; Saulnier, Gary J; Toivanen, Jussi. 2022. Physiological measurement. 43: A1 Journal article (refereed), original research -
High-Resolution Post-Process Corrected Satellite AOD
Taskinen, Henri; Väisänen, Arttu; Hatakka, Lauri; Virtanen, Timo H; Lähivaara, Timo; Arola, Antti; Kolehmainen, Ville; Lipponen, Antti. 2022. Geophysical research letters. 49: . e2022GL099733 A1 Journal article (refereed), original research -
State Estimation of Time-Varying MRI with Radial Golden Angle Sampling
Wettenhovi, Ville-Veikko; Kolehmainen, Ville; Kettunen, Mikko; Gröhn, Olli; Vauhkonen, Marko. 2022. Journal of mathematical imaging and vision. 64: 825-844 A1 Journal article (refereed), original research -
3D Electrical Impedance Tomography reconstructions from simulated electrode data using direct inversion t(exp) and Calderón methods
Hamilton, Sarah J; Isaacson, David; Kolehmainen, Ville; Muller, Peter A; Toivanen, Jussi; Bray, Patrick F. 2021. Inverse problems and imaging. 15: 1135-1169 A1 Journal article (refereed), original research -
Approximation error method for imaging the human head by electrical impedance tomography*
Candiani, V; Hyvönen, N; Kaipio, JP; Kolehmainen, V. 2021. Inverse problems. 37: 125008 A1 Journal article (refereed), original research -
Data-Driven Regularization Parameter Selection in Dynamic MRI
Hanhela, Matti; Gröhn, Olli; Kettunen, Mikko; Niinimäki, Kati; Vauhkonen, Marko; Kolehmainen, Ville. 2021. Journal of imaging. 7: 38 A1 Journal article (refereed), original research -
Joint Reconstruction of Conductivity and Velocity in Two-Phase Flows Using Electromagnetic Flow Tomography and Electrical Tomography: A Simulation Study
Arif, M. Ziaul; Lehtikangas, Ossi; Seppänen, Aku; Kolehmainen, Ville; Vauhkonen, Marko. 2021. IEEE transactions on instrumentation and measurement. 70: 1010017 A1 Journal article (refereed), original research -
Model-enforced post-process correction of satellite aerosol retrievals
Lipponen, Antti; Kolehmainen, Ville; Kolmonen, Pekka; Kukkurainen, Antti; Mielonen, Tero; Sabater, Neus; Sogacheva, Larisa; Virtanen, Timo H.; Arola, Antti. 2021. Atmospheric measurement techniques. 14: 2981-2992 A1 Journal article (refereed), original research -
Monitoring hemorrhagic strokes using EIT
Toivanen, Jussi; Hänninen, Asko; Savolainen, Tuomo; Forss, Nina; Kolehmainen, Ville. Teoksessa: Annus, Paul; Min, Mart(toim.) , 2021. Bioimpedance and Spectroscopy. s. 271-298. Academic press D2 Article in a professional book (incl. an introduction by the editor) -
OMEGA - open-source emission tomography software
Wettenhovi, V-V; Vauhkonen, M; Kolehmainen, V. 2021. Physics in medicine and biology. 66: 65010 A1 Journal article (refereed), original research -
Sensitivity Analysis Highlights the Importance of Accurate Head Models for Electrical Impedance Tomography Monitoring of Intracerebral Hemorrhagic Stroke
Paldanius, Antti; Dekdouk, Bachir; Toivanen, Jussi; Kolehmainen, Ville; Hyttinen, Jari. 2021. IEEE transactions on biomedical engineering. 2022; 69: 1491-1501 A1 Journal article (refereed), original research -
Simultaneous Reconstruction of Conductivity, Boundary Shape, and Contact Impedances in Electrical Impedance Tomography
Agnelli, Juan P; Kolehmainen, Ville; Lassas, Matti J; Ola, Petri; Siltanen Samuli. 2021. Siam journal on imaging sciences. 14: 1407-1438 A1 Journal article (refereed), original research -
Transmission Tomography Extension to the Open-source OMEGA Software
Wettenhovi, Ville-Veikko; Vauhkonen, Marko; Kolehmainen, Ville. Teoksessa: Tomita, Hideki; Nakamura, Tatsuya(toim.) , 2021. 2021 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC). s. 1-5. IEEE A4 Conference proceedings -
Joint reconstruction in low dose multi-energy CT
Toivanen, Jussi; Meaney, Alexander; Siltanen, Samuli; Kolehmainen, Ville. 2020. Inverse problems and imaging. 14: 607-629 A1 Journal article (refereed), original research -
Nonstationary Image Reconstruction in Ultrasonic Transmission Tomography Using Kalman Filter and Dimension Reduction
Liang, Guanghui; Dong, Feng; Kolehmainen, Ville; Vauhkonen, Marko; Ren, Shangjie. 2020. IEEE transactions on instrumentation and measurement. 2021; 70: 4501012 A1 Journal article (refereed), original research -
Parameter Selection in Dynamic Contrast-Enhanced Magnetic Resonance Tomography
Niinimäki, Kati; Hanhela, Matti; Kolehmainen, Ville. Teoksessa: Beilina, Larisa; Bergounioux, Maïtine; Cristofol, Michel; Da Silva, Anabela; Litman, Amelie(toim.) , 2020. Mathematical and Numerical Approaches for Multi-Wave Inverse Problems. s. 73-89. Springer A4 Conference proceedings -
Temporal Huber Regularization for DCE-MRI
Hanhela, Matti; Kettunen, Mikko; Gröhn, Olli; Vauhkonen, Marko; Kolehmainen, Ville. 2020. Journal of mathematical imaging and vision. 62: 1334-1346 A1 Journal article (refereed), original research -
Beltrami-net : domain-independent deep D-bar learning for absolute imaging with electrical impedance tomography (a-EIT)
Hamilton, S J; Hänninen, A; Hauptmann, A; Kolehmainen, V. 2019. Physiological measurement. 40: 74002 A1 Journal article (refereed), original research -
Incorporating structural prior information and sparsity into EIT using parallel level sets
Kolehmainen, Ville; Ehrhardt, Matthias J; Arridge, Simon R. 2019. Inverse problems and imaging. 13: 285-307 A1 Journal article (refereed), original research -
Bayesian aerosol retrieval algorithm for MODIS AOD retrieval over land
Lipponen, Antti; Mielonen, Tero; Pitkänen, Mikko R A; Levy, Robert C; Sawyer, Virginia R; Romakkaniemi, Sami; Kolehmainen, Ville; Arola, Antti. 2018. Atmospheric measurement techniques. 11: 1529-1547 A1 Journal article (refereed), original research -
Correction of Model Reduction Errors in Simulations
Lipponen, A; Huttunen, JMJ; Romakkaniemi, S; Kokkola, H; Kolehmainen, V. 2018. Siam journal on scientific computing. 40: B305-B327 A1 Journal article (refereed), original research -
Detection of contact failures with the Markov chain Monte Carlo method by using integral transformed measurements
Abreu, Luiz AS; Orlande, Helcio RB; Colaço, Marcelo J; Kaipio, Jari; Kolehmainen, Ville; Pacheco, César C; Cotta, Renato M. 2018. International journal of thermal sciences. 132: 486-497 A1 Journal article (refereed), original research -
Dynamic MRI reconstruction from undersampled data with an anatomical prescan
Rasch, Julian; Kolehmainen, Ville; Nivajärvi, Riikka; Kettunen, Mikko; Grohn, Olli; Burger, Martin; Brinkmann, Eva-Maria. 2018. Inverse problems. 34: 74001 A1 Journal article (refereed), original research -
Quantitative susceptibility mapping of articular cartilage: Ex vivo findings at multiple orientations and following different degradation treatments
Nykänen, O; Rieppo, L; Töyräs, J; Kolehmainen, V; Saarakkala, S; Shmueli, K; Nissi, MJ. 2018. Magnetic resonance in medicine. 80: 2702-2716 A1 Journal article (refereed), original research -
State estimation in dynamic MRI
Wettenhovi, Ville-Veikko; Kolehmainen, Ville; Huttunen, Joanna; Kettunen, Mikko; Gröhn, Olli; Vauhkonen, Marko. Teoksessa: -(toim.) , 2018. 2018 IEEE Nuclear Science Symposium and Medical Imaging (NSS/MIC): Conference Proceedings. s. 1-6. IEEE A4 Conference proceedings -
Isotropic and anisotropic total variation regularization in electrical impedance tomography
González Gerardo, Kolehmainen Ville, Seppänen Aku. 2017. Computers and mathematics with applications. 74: 564-576 A1 Journal article (refereed), original research -
State Estimation with Structural Priors in fMRI
Wettenhovi Ville-Veikko, Kolehmainen Ville, Huttunen Joanna, Kettunen Mikko, Gröhn Olli, Vauhkonen Marko. 2017. Journal of mathematical imaging and vision. 2018; 60: 174-188 A1 Journal article (refereed), original research -
Thermal tomography utilizing truncated Fourier series approximation of the heat diffusion equation
Toivanen JM, Tarvainen T, Huttunen JMJ, Savolainen T, Pulkkinen A, Orlande HRB, Kaipio JP, Kolehmainen V. 2017. International journal of heat and mass transfer. 108: 860-867 A1 Journal article (refereed), original research -
Three Dimensional Simulation of Electrical Impedance Tomography for Imaging Vocal Folds Within the Human Neck
Liu Dong, Seppänen Aku, Kolehmainen Ville. 2017. Journal of medical imaging and health informatics. 7: 1509-1516 A1 Journal article (refereed), original research -
Approximate marginalization of absorption and scattering in fluorescence diffuse optical tomography
Mozumder Meghdoot, Tarvainen Tanja, Arridge Simon, Kaipio Jari P, d'Andrea Cosimo, Kolehmainen Ville. 2016. Inverse problems and imaging. 10: 227-246 A1 Journal article (refereed), original research -
Cross-validation analysis of bias models in Bayesian multi-model projections of climate
Huttunen JMJ, Räisänen J, Nissinen A, Lipponen A, Kolehmainen V. 2016. Climate dynamics. [Epub ahead of print 10 May 2016]: 1-16 A1 Journal article (refereed), original research -
Multiresolution Parameter Choice Method for Total Variation Regularized Tomography
Niinimäki K, Lassas M, Hämälainen K, Kallonen A, Kolehmainen V, Niemi, E, Siltanen S. 2016. Siam journal on imaging sciences. 9: 938-974 A1 Journal article (refereed), original research -
Nonlinear Difference Imaging Approach to Three-Dimensional Electrical Impedance Tomography in the Presence of Geometric Modeling Errors
Liu Dong, Kolehmainen Ville, Siltanen Samuli, Laukkanen Anne-Maria, Seppänen Aku. 2016. IEEE transactions on biomedical engineering. 63: 1956-1965 A1 Journal article (refereed), original research -
PET Reconstruction With an Anatomical MRI Prior Using Parallel Level Sets
Ehrhardt M, Markiewicz P, Liljeroth M, Barnes A, Kolehmainen V, Duncan J, Pizarro L, Atkinson D, Hutton B, Ourselin S, Thielemans Kris, Arridge Simon R. 2016. IEEE transactions on medical imaging. 35: 2189-2199 A1 Journal article (refereed), original research -
A nonlinear approach to difference imaging in EIT: assessment of the robustness in the presence of modelling errors
Liu Dong, Kolehmainen Ville, Siltanen Samuli, Seppänen Aku. 2015. Inverse problems. 31: 25 p A1 Journal article (refereed), original research -
Contrast enhancement in EIT imaging of the brain
Nissinen A, Kaipio JP, Vauhkonen M, Kolehmainen V. 2015. Physiological measurement. 2016; 37: 1-24 A1 Journal article (refereed), original research -
Estimation of conductivity changes in a region of interest with electrical impedance tomography
Liu Dong, Kolehmainen Ville, Siltanen Samuli, Laukkanen Anne-Maria, Seppänen Aku. 2015. Inverse problems and imaging. 9: 211-229 A1 Journal article (refereed), original research -
Experimental evaluation of 3D electrical impedance tomography with total variation prior
González G, Huttunen JMJ, Kolehmainen V, Seppänen A, Vauhkonen M. 2015. Inverse problems in science and engineering. 2016; 24: 1411-1431 A1 Journal article (refereed), original research -
Nonlinear approach to difference imaging in diffuse optical tomography
Mozumder Meghdoot, Tarvainen Tanja, Seppänen Aku, Nissilä Ilkka, Arridge Simon R, Kolehmainen Ville. 2015. Journal of biomedical optics. 20: A1 Journal article (refereed), original research -
Optical Imaging
Arridge Simon R., Kaipio Jari P., Kolehmainen Ville, Tarvainen Tanja. Teoksessa: Otmar Scherzer(toim.) , 2015. Handbook of Mathematical Methods in Imaging. s. 1033-1079. Springer A3 Book section, Chapters in research books -
3D thermal tomography with experimental measurement data
Toivanen Jussi, Tarvainen Tanja, Huttunen Janne, Savolainen Tuomo, Orlande Helcio, Kaipio Jari, Kolehmainen Ville. 2014. International journal of heat and mass transfer. 78: 1126-1134 A1 Journal article (refereed), original research -
APPROXIMATE MARGINALIZATION OF UNKNOWN SCATTERING IN QUANTITATIVE PHOTOACOUSTIC TOMOGRAPHY
Pulkkinen Aki, Kolehmainen Ville, Kaipio Jari P, Cox Benjamin T, Arridge Simon R, Tarvainen Tanja. 2014. Inverse problems and imaging. 8: 811-829 A1 Journal article (refereed), original research -
Compensation of modeling errors due to unknown domain boundary in diffuse optical tomography
Mozumder Meghdoot, Tarvainen Tanja, Kaipio Jari P, Arridge Simon R, Kolehmainen Ville. 2014. Journal of the optical society of america a: optics image science and vision. 31: 1847-1855 A1 Journal article (refereed), original research -
Compensation of optode position and sensitivity errors in diffuse optical tomography
Mozumder Meghdoot, Tarvainen Tanja, Arridge Simon R, Kaipio Jari, Kolehmainen Ville. Teoksessa: Meghdoot Mozumder, Tanja Tarvainen, Simon R. Arridge, Jari Kaipio, and Ville Kolehmainen(toim.) , 2014. Compensation of optode position and sensitivity errors in diffuse optical tomography. s. BM3A.76. A4 Conference proceedings -
Identification of contact failures in multi-layered composites with the Markov chain Monte Carlo method
Abreu LA, Orlande HRB, Kaipio J, Kolehmainen V, Cotta RM, Quaresma NN. 2014. Journal of heat transfer: transactions of the ASME. 136: 101302-101302-9. A1 Journal article (refereed), original research -
Approximate marginalization over modeling errors and uncertainties in inverse problems
J. P. Kaipio, V. Kolehmainen. Teoksessa: Paul Damien, Petros Dellaportas, Nicholas G. Polson, David A. Stephens(toim.) , 2013. Bayesian Theory and Applications. s. 644-672. Oxford University Press A3 Book section, Chapters in research books -
Compensation of optode sensitivity and position errors in diffuse optical tomography using the approximation error approach
M. Mozumder, T. Tarvainen, S. R. Arridge, J. P. Kaipio, V. Kolehmainen. 2013. Biomedical optics express. 4: 2015-2031 A1 Journal article (refereed), original research -
Correction of approximation errors with Random Forests applied to modelling of cloud droplet formation
A. Lipponen, V. Kolehmainen, S. Romakkaniemi, H. Kokkola. 2013. Geoscientific model development. 6: 2087-2098 A1 Journal article (refereed), original research -
Recovering boundary shape and conductivity in electrical impedance tomography
Kolehmainen V, Lassas M, Ola P, Siltanen S. 2013. Inverse problems and imaging. 7: 217-242 A1 Journal article (refereed), original research -
Sparse tomography
Hämäläinen K, Kallonen A, Kolehmainen V, Lassas M, Niinimäki K, Siltanen S. 2013. Siam journal on scientific computing. 35: B644-B665 A1 Journal article (refereed), original research -
Utilising the coupled radiative transfer - diffusion model in diffuse optical tomography
Tarvainen Tanja, Kolehmainen Ville, Lehtikangas Ossi, Arridge Simon R, Kaipio Jari P. Teoksessa: Taroni P, Dehghani H(toim.) , 2013. Proc. SPIE 8799, Diffuse Optical Imaging IV. s. 879907. A4 Conference proceedings -
A Bayesian approach to Cole-Cole parameter estimation with multi-frequency EIT
G. del Muro González, A. Seppänen, V. Kolehmainen, N. Hyvönen. 2012. -
Approximation Errors and Model Reduction in Three-Dimensional Diffuse Optical Tomography
Kolehmainen, Ville; Schweiger, Martin; Nissilä, Ilkka; Tarvainen, Tanja; Arridge, Simon R.; Kaipio, Jari P.. Teoksessa: -(toim.) , 2012. Biomedical Optics and Digital Holography and Three-Dimensional Imaging. s. BTu3A.5. Optical Society of America A4 Conference proceedings -
Approximation error method can reduce artifacts due to scalp blood flow in optical brain activation imaging
Heiskala Juha, Kolehmainen Ville, Tarvainen Tanja, Kaipio Jari P, Arridge Simon R. 2012. Journal of biomedical optics. 17: 96012 A1 Journal article (refereed), original research -
Simultaneous estimation of spatially distributed thermal conductivity, heat capacity and surface heat transfer coefficient in thermal tomography
Toivanen Jussi M, Kolehmainen Ville, Tarvainen Tanja, Orlande Helcio RB, Kaipio Jari P. 2012. International journal of heat and mass transfer. 55: 7958-7968 A1 Journal article (refereed), original research -
Sparsity-promoting Bayesian inversion
Kolehmainen V, Lassas M, Niinimäki K, Siltanen S. 2012. Inverse problems. 28: 25005 A1 Journal article (refereed), original research -
Utilising approximation error modelling in linear reconstruction in diffuse optical tomography
Tarvainen Tanja, Kolehmainen Ville, Arridge Simon R., Kaipio Jari P,. Teoksessa: Optical Society of America(toim.) , 2012. Biomedical Optics and Digital Holography and Three-Dimensional Imaging. s. BTu3A.41. A4 Conference proceedings -
Compensation of Modelling Errors Due to Unknown Domain Boundary in Electrical Impedance Tomography
Antti Nissinen, Ville Petteri Kolehmainen, Jari P. Kaipio. 2011. IEEE transactions on medical imaging. 30: 231-242 A1 Journal article (refereed), original research -
Electrical Impedance Tomography Imaging of Larynx
A. Seppänen, A. Nissinen, V. Kolehmainen, S. Siltanen and A-M. Laukkanen. Teoksessa: Claudia Manfredi(toim.) , 2011. Models and analysis of vocal emissions for biomedical applications: 7th international workshop: August 25-27 2011. s. 27-29. Firenze university press A4 Conference proceedings -
Identification of contact failures in multi-layered composites
L. A. Abreu, H. R. B. Orlande, C. P. Naveira-Cotta, J. N. N. Quaresma, R. M. Cotta, J. P. Kaipio and V. Kolehmainen.. Teoksessa: n/a(toim.) , 2011. In Proceedings of the ASME 2011 31st International Design Engineering Technical Conferences & Computers and Information in Engineering Conference IDETC/CIE 2011. s. 479-487. ASME Gear Research Institute A4 Conference proceedings -
Image reconstruction in diffuse optical tomography using the coupled radiative transport - diffusion model
Tarvainen Tanja, Kolehmainen Ville, Arridge Simon R, Kaipio Jari P. 2011. Journal of quantitative spectroscopy and radiative transfer. 112: 2600-2608 A1 Journal article (refereed), original research -
Marginalization of uninteresting distributed parameters in inverse problems - Application to diffuse optical tomography
Kolehmainen V, Tarvainen T, Arridge S. R. and Kaipio J. P.. 2011. International journal for uncertainty quantification. 1: 1-17 A1 Journal article (refereed), original research -
Optical Imaging
Simon R. Arridge, Jari P. Kaipio, Ville Kolehmainen and Tanja Tarvainen. Teoksessa: O. Scherzer(toim.) , 2011. Handbook of Mathematical Methods in Imaging. s. 735-780. Springer A3 Book section, Chapters in research books -
RECONSTRUCTION OF DOMAIN BOUNDARY AND CONDUCTIVITY IN ELECTRICAL IMPEDANCE TOMOGRAPHY USING THE APPROXIMATION ERROR APPROACH
Antti Nissinen, Ville Kolehmainen, Jari P. Kaipio. 2011. International journal for uncertainty quantification. 1: 203-222 A1 Journal article (refereed), original research -
Split operator method for fluorescence diffuse optical tomography using anisotropic diffusion regularisation with prior anatomical information
Teresa Correia, Juan Aguirre, Alejandro Sisniega, Judit Chamorro-Servent, Juan Abascal, Juan J. Vaquero, Manuel Desco, Ville Kolehmainen and Simon Arridge. 2011. Biomedical optics express. 2: 2632-2648 A1 Journal article (refereed), original research -
An approximation error approach for compensating for modelling errors between the radiative transfer equation and the diffusion approximation in diffuse optical tomography
Tanja Tarvainen, Ville Kolehmainen, Aki Pulkkinen, Marko Vauhkonen, Martin Schweiger, Simon R Arridge, Jari P Kaipio. 2010. Inverse problems. 26: 015005 (18pp) A1 Journal article (refereed), original research -
Approximation Error Approach for Compensating Modelling Errors in Optical Tomography
Tanja Tarvainen, Ville Kolehmainen, Aki Pulkkinen, Marko Vauhkonen, Martin Schweiger, Simon R. Arridge, and Jari P. Kaipio. Teoksessa: The Optical Society(toim.) , 2010. Biomedical Optics (BIOMED)/ Digital Holography and Three‐Dimensional Imaging (DH) Technical Digest. s. BSuD48. A4 Conference proceedings -
Bayesian estimation of temperature dependent thermophysical properties and transient boundary heat flux
C. Mota, H. R. B. Orlande, M. De Carvalho, V. Kolehmainen and J. P. Kaipio. 2010. Heat transfer engineering. 31: 570-580 A1 Journal article (refereed), original research -
Calderon's inverse problem with an imperfectly known boundary and reconstruction up to a conformal deformation
Ville Kolehmainen, Matti Lassas ja Petri Ola. 2010. Siam journal on mathematical analysis. 42: 1371-1381 A1 Journal article (refereed), original research -
Compensation of errors due to incorrect model geometry in electrical impedance tomography
Antti Nissinen, Ville Kolehmainen, Jari Kaipio. Teoksessa: IOP(toim.) , 2010. XIV International Conference on Electrical Bioimpedance and 11th Conference on Biomedical Applications of Electrical Impedance Tomography (ICEBI & EIT 2010). s. 12050. A4 Conference proceedings -
Corrections to linear methods for diffuse optical tomography using approximation error modelling
Tanja Tarvainen, Ville Kolehmainen, Jari P. Kaipio, Simon R. Arridge. 2010. Biomedical optics express. 1: 209-222 A1 Journal article (refereed), original research -
Finite Element Solution of the Fokker-Planck Equation for Optical Tomography
Ossi Lehtikangas, Tanja Tarvainen, Ville Kolehmainen, Aki Pulkkinen, Simon R Arridge, Jari P Kaipio. Teoksessa: The Optical Society(toim.) , 2010. Biomedical Optics (BIOMED)/ Digital Holography and Three‐Dimensional Imaging (DH) Technical Digest. s. BSuE1. A4 Conference proceedings -
Finite element approximation of the Fokker-Planck equation for diffuse optical tomography
Ossi Lehtikangas, Tanja Tarvainen, Ville Kolehmainen, Simon R. Arridge, Jari P. Kaipio. 2010. -
Finite element approximation of the Fokker-Planck equation for diffuse optical tomography
Ossi Lehtikangas, Tanja Tarvainen, Ville Kolehmainen, Aki Pulkkinen, Simon R Arridge, Jari P Kaipio. 2010. Journal of quantitative spectroscopy and radiative transfer. 111: 1406-1417 A1 Journal article (refereed), original research -
3D shape based reconstruction of experimental data in Diffuse Optical Tomography
Zacharopoulos A, Schweiger M, Kolehmainen V, Arridge S. 2009. Optics express. 17: 18940-18956 A1 Journal article (refereed), original research -
Approximation errors and model reduction in three-dimensional diffuse optical tomography
Kolehmainen V, Schweiger M, Nissilä I, Tarvainen T, Arridge SR, Kaipio JP. 2009. Journal of the optical society of america a: optics image science and vision. 26: 2257-2268 A1 Journal article (refereed), original research -
Bayesian Multiresolution Method for Local Tomography [ CD-ROM ]
Niinimäki K, Kolehmainen V, Siltanen S. Teoksessa: (toim.) , 2009. Frontiers in optics 2009 OSA¿s 93rd Annual Meeting Laser Science XXV APS/DLS 25th Annual Meeting. Signal recovery and Synthesis, OSA Technical Digest (CD). s. . Optical Society of America A4 Conference proceedings -
Bayesian multiresolution method for local X-ray tomography in dental radiology
Niinimäki K, Siltanen S, Kolehmainen V. Teoksessa: (toim.) , 2009. Computational Imaging VII. s. 72460A-1-11. A4 Conference proceedings -
Bayesian wavelet based multiresolution method for local tomography
V. Kolehmainen, K. Niinimäki and S. Siltanen. Teoksessa: V. Capasso, G. Aletti and A. Micheletti(toim.) , 2009. Stereology and Image Analysis. Ecs10: Proceeding of the 10th European Conference of ISS. s. 27-35. ESCULAPIO Pub. Co A4 Conference proceedings -
Compensation of errors due to discretization, domain truncation and unknown contact impedances in electrical impedance tomography
Nissinen A, Heikkinen LM, Kolehmainen V, Kaipio JP. 2009. Measurement science and technology. 20: 105504 (13 s.) A1 Journal article (refereed), original research -
Inverse problem of simultaneous identification of thermophysical properties and boundary heat flux
Mota C, Orlande H R B, Wellelle O, Kolehmainen V and Kaipio J P. 2009. High temperatures - high pressures. 38: 171-185 A1 Journal article (refereed), original research -
Electrical impedance tomography problem with inaccurately known boundary and contact impedances
Kolehmainen V, Lassas M and Ola P.. 2008. IEEE transactions on medical imaging. 27: 1404-1414 A1 Journal article (refereed), original research -
Limited data x-ray tomography using nonlinear evolution equations
Kolehmainen V, Lassas M, Siltanen S. 2008. Siam journal on scientific computing. 30: 1413-1429 A1 Journal article (refereed), original research -
Multimodal Diffuse Optical Tomography: Theory
Arridge S. R, Panagiotou C, Schweiger M and Kolehmainen V. Teoksessa: F. S. Azar and X. Intes(toim.) , 2008. Translational multimodality Optical Imaging. s. 101-124. Artech House A3 Book section, Chapters in research books -
Parameter and structure reconstruction in optical tomography
S. R. Arridge, O. Dorn, V. Kolehmainen, M. Schweiger and A. Zacharopoulos. 2008. Journal of physics : Conference series. 153: 12001 A1 Journal article (refereed), original research -
Reconstruction and regularization in Optical Tomography
S. R. Arridge, V. Kolehmainen and M. Schweiger. Teoksessa: Y. Censor, M. Jiang, A. K. Louis(toim.) , 2008. Mathematical Methods in Biomedical Imaging and Intensity Modulated Radiation Therapy (IMRT). s. 1-18. A4 Conference proceedings -
Utilizing the Radiative Transfer Equation in Optical Tomography
Tarvainen T, Vauhkonen M, Kolehmainen V, Kaipio JP, Arridge SR. Teoksessa: (toim.) , 2008. PIERS Proseedings. s. 730-735. A4 Conference proceedings -
Utilizing the radiative transfer equation in optical tomography
Tarvainen T, Vauhkonen M, Kolehmainen V, Kaipio JP, Arrige SR. 2008. PIERS ONLINE. 4: 655-660 D1 Article in a trade journal -
A three-dimensional shape estimation approach for tracking of phase interfaces in sedimentation processes using electrical impedance tomography
Tossavainen O-P, Vauhkonen M, Kolehmainen V. 2007. Measurement science and technology. 18: 1413-1424 A1 Journal article (refereed), original research -
Bayesian inversion method for 3D dental X-ray imaging
Kolehmainen V, Vanne A, Siltanen S, Järvenpää S, Kaipio JP, Lassas M, Kalke M. 2007. Elektrotechnik und informationstechnik. 127: 248-253 A1 Journal article (refereed), original research -
Bayesian multiresolution method for local tomography in dental x-ray imaging
Niinimäki K, Siltanen S, Kolehmainen V. 2007. Physics in medicine and biology. : 6663-6678 A1 Journal article (refereed), original research -
Calderon's inverse problem with an imperfectly known boundary in two and three dimensions
V. Kolehmainen, M. Lassas and P. Ola. 2007. Journal of physics : Conference series. 73: 12002 A1 Journal article (refereed), original research -
Method and arrangement for medical X-ray imaging and reconstruction from sparse data
S. Siltanen, E. Somersalo, V. Kolehmainen, M. Lassas and J. P. Kaipio. 2007. H1 Granted patent -
Method and arrangement for three-dimensional medical X-ray imaging
J. P. Kaipio, S. Siltanen, M. Kalke, V. Kolehmainen and M. Lassas. 2007. H1 Granted patent -
Multiresolution local tomography in dental radiology using wavelets
Niinimäki K, Siltanen S, Kolehmainen V. Teoksessa: Niinimäki K, Siltanen S, Kolehmainen V(toim.) , 2007. 29th International Conference of the IEEE Engineering in Medicine and Biology Society. s. 4 s. EMBC A4 Conference proceedings -
Reconstruction of thermal conductivity and heat capacity using a tomographic approach
Kolehmainen V, Kaipio JP, Orlande HRB. 2007. International journal of heat and mass transfer. 50: 5150-5160 A1 Journal article (refereed), original research -
Structure-from-motion without correspondence from tomographic projections by Bayesian inversion theory
Brandt SS, Kolehmainen V. 2007. IEEE transactions on medical imaging. 26: 238-248 A1 Journal article (refereed), original research -
The inverse conductivity problem with an imperfectly known boundary in three dimensions
Kolehmainen V, Lassas M, Ola P. 2007. Siam journal on applied mathematics. 67: 1440-1452 A1 Journal article (refereed), original research -
3D shape reconstruction in optical tomography using spherical harmonics and bem
Zacharopoulos A, Arridge S, Dorn O, Kolehmainen V, Sikora J. 2006. Journal of electromagnetic waves and applications. 20: 1827-1836 A1 Journal article (refereed), original research -
Approximation Errors and Model Reduction in Optical Tomography
V. Kolehmainen, S. R. Arridge, J. P. Kaipio, M. Schweiger, E. Somersalo, T. Tarvainen and M. Vauhkonen. Teoksessa: n/a(toim.) , 2006. Engineering in Medicine and Biology Society, 2006. EMBS '06. 28th Annual International Conference of the IEEE. s. 2659 - 2662. IEEE A4 Conference proceedings -
Approximation errors and model reduction with an application in optical diffusion tomography
Arridge SR, Kaipio JP, Kolehmainen V, Schweiger M, Somersalo E, Tarvainen T, Vauhkonen M. 2006. Inverse problems. 22: 175-195 A1 Journal article (refereed), original research -
Dynamic physiological modeling for functional diffuse optical tomography
Diamond SG, Huppert TJ, Kolehmainen V, Franceschini MA, Kaipio JP, Arridge SR, Boas DA. 2006. Neuroimage. 30: 88-101 A1 Journal article (refereed), original research -
Electrical impedance tomography problem with inaccurately known boundary and contact impedances
V. Kolehmainen, M. Lassas and P. Ola. Teoksessa: n/a(toim.) , 2006. 3rd IEEE International Symposium on Biomedical Imaging: Nano to Macro, 2006.. s. 1124-1127. IEEE A4 Conference proceedings -
Finite element approximations for the radiative transfer equation
Vauhkonen M., Tarvainen T., Kolehmainen V., Kaipio J.. Teoksessa: (toim.) , 2006. Biomedical Optics 2006. s. . A4 Conference proceedings -
Finite element model for the coupled radiative transfer equation and diffusion approximation
Tarvainen T, Vauhkonen M, Kolehmainen V, Kaipio JP. 2006. International journal for numerical methods in engineering. 65: 383-405 A1 Journal article (refereed), original research -
Free-surface and admittivity estimation in electrical impedence tomography
Tossavainen O-P, Kolehmainen V, Vauhkonen M. 2006. International journal for numerical methods in engineering. 66: 1991-2013 A1 Journal article (refereed), original research -
Lääketieteellinen röntgenkuvauksen menetelmä ja järjestely
S. Siltanen, E. Somersalo, V. Kolehmainen, M. Lassas and J. P. Kaipio. 2006. H1 Granted patent -
Modeling photon migration in tissues with the coupled rediative transfer equation and diffusion approximation
Tarvainen T., Vauhkonen M., Kolehmainen V., Kaipio J.. Teoksessa: (toim.) , 2006. Biomedical Optics 2006. s. . A4 Conference proceedings -
Parallelized Bayesian inversion for three-dimensional dental x-ray imaging
Kolehmainen V, Vanne A, Siltanen S, Järvenpää S, Kaipio JP, Lassas M, Kalke M. 2006. IEEE transactions on medical imaging. 25: 218-228 A1 Journal article (refereed), original research -
Reconstructing absorption and diffusion shape profiles in optical tomography by a level set technique
Schweiger M, Arridge SR, Dorn O, Zacharopoulos A, Kolehmainen V. 2006. Optics letters. 31: 471-473 A1 Journal article (refereed), original research -
Reconstruction of Simple Geometric Objects in 3D Optical Tomography Using an Adjoint Technique and a Boundary Element Method
A. Zacharopoulos, O. Dorn, S. R. Arridge, V. Kolehmainen and J. Sikora. Teoksessa: L. L. Bonilla, M. Moscoso, G. Plantero, J. M. Vega(toim.) , 2006. Progress in Industrial Mathematics at ECMI 2006. s. 603-607. Springer A4 Conference proceedings -
Reconstruction of subdomain boundaries of piecewise constant coefficients of the radiative transfer equation from optical tomography data
Arridge SR, Dorn O, Kaipio JP, Kolehmainen V, Schweiger M, Tarvainen T, Vauhkonen M, Zacharopoulos A. 2006. Inverse problems. 22: 2175-2196 A1 Journal article (refereed), original research -
Three-dimensional reconstruction of shape and piecewise constant region values for optical tomography using spherical harmonic parametrization and a boundary element method
Zacharopoulos AD, Arridge SR, Dorn O, Kolehmainen V, Sikora J. 2006. Inverse problems. 22: 1509-1532 A1 Journal article (refereed), original research -
Tracking of moving interfaces in sedimentation processes using electrical impedance tomography
Tossavainen O-P, Vauhkonen M, Kolehmainen V, Kim KY. 2006. Chemical engineering science. 61: 7717-7729 A1 Journal article (refereed), original research -
Computational calibration method for optical tomography
Tarvainen T, Kolehmainen V, Vauhkonen M, Vanne A, Gibson AP, Schweiger M, Arridge SR, Kaipio JP. 2005. Applied optics. 44: 1879-1888 A1 Journal article (refereed), original research -
Coupled radiative transfer equation and diffusion approximation
Tarvainen T, Vauhkonen M, Kolehmainen V, Kaipio JP. Teoksessa: Licha K, Cubeddu R(toim.) , 2005. ECBO 2005 - European Conferences on Biomedical Optics. s. 262-270. International Society for Optical Engineering, OSA A4 Conference proceedings -
Coupled radiative transfer equation and diffusion approximation model for photon migration in turbid medium with low-scattering and non-scattering regions
Tarvainen T, Vauhkonen M, Kolehmainen V, Arridge SR, Kaipio JP. 2005. Physics in medicine and biology. 50: 4913-4930 A1 Journal article (refereed), original research -
Hybrid radiative-transfer-diffusion model for optical tomography
Tarvainen T, Vauhkonen M, Kolehmainen V, Kaipio JP. 2005. Applied optics. 44: 876-886 A1 Journal article (refereed), original research -
Physiological System Identification with the Kalman Filter in Diffuse Optical Tomography
Solomon Gilbert Diamond, Theodore J. Huppert, Ville Kolehmainen, Maria Angela Franceschini and Jari P. Kaipio. Teoksessa: J Duncan and G Gerig(toim.) , 2005. , Medical Image Computing and Computer-Assisted Intervention ¿ MICCAI 2005. s. 649-656. Springer-Verlag A4 Conference proceedings -
The inverse conductivity problem with an imperfectly known boundary
Kolehmainen V, Lassas M, Ola P. 2005. Siam journal on applied mathematics. 66: 365-383 A1 Journal article (refereed), original research -
Computational calibration method for optical tomography
Vilhunen T, Kolehmainen V, Vauhkonen M, Vanne A, Kaipio JP, Gibson A, Schweiger M, Arridge SR. Teoksessa: -(toim.) , 2004. OSA Biomedical Optics, Topical meetings [CD-ROM]. s. -. A4 Conference proceedings -
Motion Without Correspondence from Tomographic Projections by Bayesian Inversion Theory
Brandt S. S and Kolehmainen V. Teoksessa: n/a(toim.) , 2004. Proceedings of the 2004 IEEE Computer Society Conference on Computer Vision and Pattern Recognition. s. 582-587. IEEE Computer Society A4 Conference proceedings -
Utilizing the radiative transfer equation in optical tomography
Vauhkonen M, Vilhunen T, Kolehmainen V, Kaipio JP. Teoksessa: (toim.) , 2004. OSA Biomedical Optics, Topical Meetings. s. WF48. Optical Society of America A4 Conference proceedings -
A source model for optical diffusion tomography
Vilhunen T, Kolehmainen V, Vauhkonen M, Kaipio JP. Teoksessa: (toim.) , 2003. Proceedings of 3rd World Congress on Industrial Process Tomography. s. 110-114. The Virtual Centre for Industrial Process Tomography A4 Conference proceedings -
State-estimation approach to the nonstationary optical tomography problem
Kolehmainen V, Prince S, Arridge SR, Kaipio JP. 2003. Journal of the optical society of america a: optics image science and vision. 20: 876-889 A1 Journal article (refereed), original research -
Statistical inversion for medical x-ray tomography with few radiographs: I. General theory
Siltanen S, Kolehmainen V, Järvenpää S, Kaipio JP, Koistinen P, Lassas M, Pirttilä J, Somersalo E. 2003. Physics in medicine and biology. 48: 1437-1463 A1 Journal article (refereed), original research -
Statistical inversion for medical x-ray tomography with few radiographs: II. Application to dental radiology
Kolehmainen V, Siltanen S, Järvenpää S, Kaipio JP, Koistinen P, Lassas M, Pirttilä J, Somersalo E. 2003. Physics in medicine and biology. 48: 1465- 1490 A1 Journal article (refereed), original research -
Time-series estimation of biological factors in optical diffusion tomography
Prince S, Kolehmainen V, Kaipio JP, Franceschini MA, Boas D, Arridge SR. 2003. Physics in medicine and biology. 48: 1491-1504 A1 Journal article (refereed), original research -
Linking the radiative transfer equation and the diffusion approximation
Vilhunen T, Vauhkonen M, Kolehmainen V, Kaipio JP. Teoksessa: (toim.) , 2002. OSA Biomedical Topical Meetings. s. 12-14. Optical Society of America A4 Conference proceedings -
Computational methods for the estimation of aerosol size distributions
Voutilainen A, Kolehmainen V, Stratmann F, Kaipio JP. Teoksessa: Uvarova LA, Latyshev AV(toim.) , 2001. Mathematical Modeling. Problems, Methods, Applications. s. 219-230. Kluwer Academic D2 Article in a professional book (incl. an introduction by the editor) -
Estimation of non-stationary region boundaries in EIT-state estimation approach
Kolehmainen V, Voutilainen A, Kaipio JP. 2001. Inverse problems. 17: 1937-1956 A1 Journal article (refereed), original research -
Novel Approaches to Image Reconstruction in Diffusion Tomography
Kolehmainen V. 2001. Kuopion yliopiston julkaisuja C. Luonnontieteet ja ympäristötieteet G4 Doctoral dissertation (monograph) -
Statistical inversion of aerosol size measurement data
Voutilainen A, Kolehmainen V, Kaipio JP. 2001. Inverse problems in science and engineering. 9: 67-94 A1 Journal article (refereed), original research -
Recovery of piecewise constant coefficients in optical diffusion tomography [online]
Kolehmainen V, Vauhkonen M, Kaipio JP, Arridge SR. 2000. Optics express. 7: 468-480 A1 Journal article (refereed), original research -
Simultaneous reconstruction of internal tissue region boundaries and coefficients in optical diffusion tomography
Kolehmainen V, Arridge SR, Vauhkonen M, Kaipio JP. 2000. Physics in medicine and biology. 45: 3267-3283 A1 Journal article (refereed), original research -
Statistical inversion and Monte Carlo sampling methods in electrical impedance tomography
Kaipio JP, Kolehmainen V, Somersalo E, Vauhkonen M. 2000. Inverse problems. 16: 1487-1522 A1 Journal article (refereed), original research -
Statistical inversion of aerosol size distribution data
Voutilainen A, Kolehmainen V, Kaipio JP. Teoksessa: (toim.) , 2000. Abstracts of the 2000 European Aerosol Conference. s. 767-768. Pergamon A4 Conference proceedings -
Inverse problems with structural prior information
Kaipio JP, Kolehmainen V, Vauhkonen M, Somersalo E. 1999. Inverse problems. 15: 713-729 A1 Journal article (refereed), original research -
Recovery of organ boundaries in optical tomography
Kolehmainen V, Arridge SR, Lionheart WRB, Kaipio JP. Teoksessa: (toim.) , 1999. Proceedings of the First Joint BMES/EMBS Conference. Serving Humanity. Advancing Technology. s. 1090. A4 Conference proceedings -
Recovery of region boundaries of piecewise constant coefficients of an elliptic PDE from boundary data
Kolehmainen V, Arridge SR, Lionheart WRB, Vauhkonen M, Kaipio JP. 1999. Inverse problems. 15: 1375-1391 A1 Journal article (refereed), original research -
Regularization approach to the single trial estimation of multi channel evoked potentials
Karjalainen PA, Kaipio JP, Kolehmainen V, Koistinen AS, Partanen J. Teoksessa: (toim.) , 1999. Proceedings of the First Joint BMES/EMBS Conference. Serving Humanity. Advancing Technology. s. 423. A4 Conference proceedings -
A Bayesian approach and total variation priors in 3D Electrical Impedance Tomography
Kolehmainen V, Somersalo E, Vauhkonen PJ, Vauhkonen M, Kaipio JP. Teoksessa: Chang HK, Zhang YT(toim.) , 1998. Biomedical Engineering Towards the Year 2000 and Beyond. Proceedings of the 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. s. 1028-1031. IEEE A4 Conference proceedings -
Construction of anatomy-based priors with anisotropic characteristics with application to electrical impedance tomography
Kaipio JP, Kolehmainen V, Vauhkonen M, Somersalo E. Teoksessa: Chang HK, Zhang YT(toim.) , 1998. Biomedical Engineering Towards the Year 2000 and Beyond. Proceedings of the 20th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. s. 1032-1035. IEEE A4 Conference proceedings -
Pharmacokinetics and dosimetry of iodine-123 labelled PE2I in humans, a radioligand for dopamine transporter imaging
Kuikka JT, Baulieu JL, Hiltunen J, Halldin C, Bergström KA, Farde L, Emond P, Chalon S, Yu M, Nikula T, Laitinen T, Karhu J, Tupala E, Hallikainen T, Kolehmainen V, Mauclaire L, Maziere B, Tiihonen J, Guilloteau D. 1998. European journal of nuclear medicine and molecular imaging. 25: 531-534 A1 Journal article (refereed), original research -
Assessment of errors in static electrical impedance tomography with adjacent and trigonometric current patterns
Kolehmainen V, Vauhkonen M, Karjalainen PA, Kaipio JP. 1997. Physiological measurement. 18: 289-303 A1 Journal article (refereed), original research -
Comparison of adjacent and trigonometric current patterns in electrical impedance tomography
V. Kolehmainen, M. Vauhkonen, P. A. Karjalainen and J. P. Kaipio. 1997. Medical and biological engineering and computing. 35: 320 A1 Journal article (refereed), original research -
Spatial inhomogeneity and regularization in EIT
Kolehmainen V, Vauhkonen M, Karjalainen PA, Kaipio JP. Teoksessa: (toim.) , 1997. Magnificent Milestones and Emerging Opportunities in Medical Engineering. Proceedings of the 19th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. [CD-ROM]. s. 449-452. IEEE A4 Conference proceedings