The MICADO first light imager for the ELT: overview and current status | 2024 Publication type A4 Conference proceedings Author(s) Sturm Eckhard, Davies Richard, Alves João, Clénet Yann, Kotilainen Jari, Monna Anna, Nicklas Harald, Pott Jörg-Uwe, Tolstoy Eline, Vulcani Benedetta, Achren Jani, Annadevara Sriprasanna, Anwand-Heerwart Heiko, Arcidiacono Carmelo, Barboza Santiago, Barl Lothar, Baudoz Pierre, Bender Ralf, Helin Tapio, Suuronen Jarkko et. al. Other Focus Area LUT School of Engineering Sciences
Bayesian design of measurements for magnetorelaxometry imaging | 2023 Publication type A1 Journal article (refereed), original research Author(s) Helin T., Hyvönen N., Maaninen J., Puska J.-P. Other Focus Area LUT School of Engineering Sciences
Convex regularization in statistical inverse learning problems | 2023 Publication type A1 Journal article (refereed), original research Author(s) Bubba Tatiana, Burger Martin, Helin Tapio, Ratti Luca Other Focus Area LUT School of Engineering Sciences
Stability estimates for the expected utility in Bayesian optimal experimental design | 2023 Publication type A1 Journal article (refereed), original research Author(s) Duong Duc-Lam, Helin Tapio, Rojo-Garcia Jose Rodrigo Other Focus Area LUT School of Engineering Sciences
Advances in model-based reinforcement learning for adaptive optics control | 2022 Publication type A4 Conference proceedings Author(s) Nousiainen Jalo, Engler Byron, Kasper Markus, Helin Tapio, Heritier Cédric T., Rajani Chang Other Focus Area LUT School of Engineering Sciences
Edge-promoting adaptive Bayesian experimental design for X-ray imaging | 2022 Publication type A1 Journal article (refereed), original research Author(s) Helin Tapio, Hyvönen Nuutti, Puska Juha-Pekka Other Focus Area LUT School of Engineering Sciences
FitAO: a Python-based platform for algorithmic development AO | 2022 Publication type A4 Conference proceedings Author(s) Krokberg Tomi, Nousiainen Jalo, Lehtonen Jonatan, Helin Tapio Other Focus Area LUT School of Engineering Sciences
LBT SOUL data as a science test bench for MICADO PSF-R tool | 2022 Publication type A4 Conference proceedings Author(s) Simioni Matteo, Arcidiacono Carmelo, Wagner Roland, Grazian Andrea, Gullieuszik Marco, Portaluri Elisa, Vulcani Benedetta, Zanella Anita, Agapito Guido, Davies Richard, Helin Tapio, Pedichini Fernando, Piazzesi Roberto, Pinna Enrico, Ramlau Ronny, Rossi Fabio, Salo Aleksi Other Focus Area LUT School of Engineering Sciences
Non-asymptotic error estimates for the Laplace approximation in Bayesian inverse problems | 2022 Publication type A1 Journal article (refereed), original research Author(s) Helin Tapio, Kretschmann Remo Other Focus Area LUT School of Engineering Sciences
Point spread function reconstruction for SOUL+ LUCI LBT data | 2022 Publication type A1 Journal article (refereed), original research Author(s) Simioni Matteo, Arcidiacono Carmelo, Wagner Roland, Grazian Andrea, Gullieuszik Marco, Portaluri Elisa, Vulcani Benedetta, Zanella Anita, Agapito Guido, Davies Richard, Helin Tapio, Pedichini Fernando, Piazzesi Roberto, Pinna Enrico, Ramlau Ronny, Rossi Fabio, Salo Aleksi Other Focus Area LUT School of Engineering Sciences
Status of the PSF reconstruction work package for MICADO at ELT | 2022 Publication type A4 Conference proceedings Author(s) Grazian Andrea, Simioni Matteo, Arcidiacono Carmelo, Achren Jani, Clenet Yann, Cao Yixian, Davies Richard, Gullieuszik Marco, Helin Tapio, Jodlbauer Daniel, Kuncarayakti Hanindyo, Le Louarn Miska, Mattila Seppo, Pedichini Fernando, Piazzesi Roberto, Portaluri Elisa, Salo Aleksi, Verdoes Kleijn Gijs, Vulcani Benedetta, Wagner Roland, Williams Steven, Zanella Anita, Zeilinger Werner W Other Focus Area LUT School of Engineering Sciences
The GPU-based High-order adaptive OpticS Testbench | 2022 Publication type A4 Conference proceedings Author(s) Engler Byron, Kasper Markus, Leveratto Serban, Taissir Heritier Cedric, Bristow Paul, Verinaud Christophe, Le Louarn Miska, Nousiainen Jalo, Helin Tapio, Bonse Markus, Quanz Sascha, Glauser Adrian, Gratadour Damien, Bernard Julien, Clare Richard Other Focus Area LUT School of Engineering Sciences
Toward on-sky adaptive optics control using reinforcement learning - Model-based policy optimization for adaptive optics | 2022 Publication type A1 Journal article (refereed), original research Author(s) Nousiainen J., Rajani C., Kasper M., Helin T., Haffert S., Vérinaud C., Males J., Van Gorkom K., Close L., Long J., Hedglen A., Guyon O., Schatz L., Kautz M., Lumbres J., Rodack A., Knight J., Miller K. Other Focus Area LUT School of Engineering Sciences
Adaptive optics control using model-based reinforcement learning | 2021 Publication type A1 Journal article (refereed), original research Author(s) Nousiainen Jalo, Rajani Chang, Kasper Markus, Helin Tapio Other Focus Area LUT School of Engineering Sciences
Adaptive Optics using Model-Based Reinforcement Learning | 2021 Publication type A1 Journal article (refereed), original research Author(s) Nousiainen Jalo, Rajani Chang, Kasper Markus, Helin Tapio
MICADO PSF-Reconstruction work package description | 2021 Publication type A4 Conference proceedings Author(s) Simioni M, Arcidiacono C, Grazian A, Clenet Y, Davies R, Gullieuszik M, Verdoes Kleijn G, Pedichini F, Wagner R, Ramlau R, Zeilinger W, Vidal F, Vulcani B, Ragazzoni R, Sevin A, Salasnich B, Baruffolo A, Busoni L, Esposito S, Gendron E, Piazzesi R, Portaluri E, Zanella A, Helin Tapio, Kuncarayakti H, Mattila S, Falomo R, Pinna E
PCS - A Roadmap for Exoearth Imaging with the ELT | 2021 Publication type E1 Popularised article, newspaper article Author(s) Kasper Markus, Urra Nelly Cerpa, Pathak Prashant, Bonse Markus, Nousiainen Jalo, Engler Byron, Heritier Cédric Taïssir, Kammerer Jens, Leveratto Serban, Rajani Chang, Bristow Paul, Le Louarn Miska, Madec Pierre-Yves, Ströbele Stefan, Verinaud Christophe, Glauser Adrian, Quanz Sascha P., Helin Tapio, Keller Christoph, Snik Frans, Boccaletti Anthony, Chauvin Gaël, Mouillet David, Kulcsár Caroline, Raynaud Henri-François
Rates of contraction of posterior distributions based on p-exponential priors | 2021 Publication type A1 Journal article (refereed), original research Author(s) Agapiou Sergios, Dashti Masoumeh, Helin Tapio Other Focus Area LUT School of Engineering Sciences
Sequentially optimized projections in X-ray imaging | 2021 Publication type A1 Journal article (refereed), original research Author(s) Burger Martin, Hauptmann Andreas, Helin Tapio, Hyvönen Nuutti, Puska Juha-Pekka
Fuel rod classification from Passive Gamma Emission Tomography (PGET) of spent nuclear fuel assemblies | 2020 Publication type A1 Journal article (refereed), original research Author(s) Virta Riina, Backholm Rasmus, Bubba Tatiana, Helin Tapio, Moring Mikael, Siltanen Samuli, Dendooven Peter, Honkamaa Tapani Other Focus Area LUT School of Engineering Sciences
Hyperparameter Estimation in Bayesian MAP Estimation: Parametrizations and Consistency | 2020 Publication type A1 Journal article (refereed), original research Author(s) Dunlop Matthew, Helin Tapio, Stuart Andrew
Identification of molecular cluster evaporation rates, clusterformation enthalpies and entropies by Monte Carlo method | 2020 Publication type A1 Journal article (refereed), original research Author(s) Shcherbacheva Anna, Balehowsky Tracey, Olenius Tinja, Helin Tapio, Laine Marko, Haario Heikki, Kurtén Theo, Vehkamäki Hanna
Inverse problems for heat equation and space–time fractional diffusion equation with one measurement | 2020 Publication type A1 Journal article (refereed), original research Author(s) Helin Tapio, Lassas Matti, Ylinen Lauri, Zhang Zhidong
Inverse random source problems for time-harmonic acoustic and elastic waves | 2020 Publication type A1 Journal article (refereed), original research Author(s) Li Jianglian, Helin Tapio, Li Peijun
Modelling internal knot distribution using external log features | 2020 Publication type A1 Journal article (refereed), original research Author(s) Zolotarev Fedor, Eerola Tuomas, Lensu Lasse, Kälviäinen Heikki, Helin Tapio, Haario Heikki, Kauppi Tomi, Heikkinen Jere Forestry Applied Mathematics Computational Mathematics Computer Vision and Pattern Recognition LUT School of Engineering Sciences
Simultaneous Reconstruction of Emission and Attenuation in Passive Gamma Emission Tomography of Spent Nuclear Fuel | 2020 Publication type A1 Journal article (refereed), original research Author(s) Backholm Rasmus, Bubba Tatiana, Bélanger–Champagne Camille, Helin Tapio, Dendooven Peter, Siltanen Samuli
An inverse random source problem in a stochastic fractional diffusion equation | 2019 Publication type A1 Journal article (refereed), original research Author(s) Niu Pingping, Helin Tapio, Zhang Zhidong
Correlation imaging in inverse scattering is tomography on probability distributions | 2019 Publication type A1 Journal article (refereed), original research Author(s) Caro Pedro, Helin Tapio, Kujanpää Antti, Lassas Matti
Correlation-based imaging in adaptive optics | 2019 Publication type A3 Book section, chapters in research books Author(s) Lehtonen Jonatan, Helin Tapio
Generalized Modes in Bayesian Inverse Problems | 2019 Publication type A1 Journal article (refereed), original research Author(s) Clason Christian, Helin Tapio, Kretschmann Remo, Piiroinen Petteri
Inverse scattering for a random potential | 2019 Publication type A1 Journal article (refereed), original research Author(s) Caro Pedro, Helin Tapio, Lassas Matti
Real-time turbulence profiling using particle filtering | 2019 Publication type A4 Conference proceedings Author(s) Lehtonen Jonatan, Helin Tapio
Atmospheric turbulence profiling with unknown power spectral density | 2018 Publication type A1 Journal article (refereed), original research Author(s) Helin Tapio, Kindermann Stefan, Lehtonen Jonatan, Ramlau Ronny
Correlation based passive imaging with a white noise source | 2018 Publication type A1 Journal article (refereed), original research Author(s) Helin Tapio, Lassas Matti, Oksanen Lauri, Saksala Teemu
Limits of turbulence and outer scale profiling with non-Kolmogorov statistics | 2018 Publication type A4 Conference proceedings Author(s) Lehtonen Jonatan, Correia Carlos M., Helin Tapio
Sparsity-promoting and edge-preserving maximum a posteriori estimators in non-parametric Bayesian inverse problems | 2018 Publication type A1 Journal article (refereed), original research Author(s) Agapiou Sergios, Burger Martin, Dashti Masoumeh, Helin Tapio
A variational reconstruction method for undersampled dynamic x-ray tomography based on physical motion models | 2017 Publication type A1 Journal article (refereed), original research Author(s) Burger Martin, Dirks Hendrik, Frerking Lena, Hauptmann Adreas, Helin Tapio, Siltanen Samuli
Comparison of methods for the reduction of reconstructed layers in atmospheric tomography | 2017 Publication type A1 Journal article (refereed), original research Author(s) Saxenhuber D., Auzinger G., Le Louarn M., Helin T.
Inverse acoustic scattering problem in half-space with anisotropic random impedance | 2017 Publication type A1 Journal article (refereed), original research Author(s) Helin Tapio, Lassas Matti, Päivärinta Lassi
Towards analytical model optimization in atmospheric tomography | 2017 Publication type A1 Journal article (refereed), original research Author(s) Helin Tapio, Kindermann Stefan, Saxenhuber Daniela
Efficient reconstruction method for ground layer adaptive optics with mixed natural and laser guide stars | 2016 Publication type A1 Journal article (refereed), original research Author(s) Wagner R., Helin T., Obereder A., Ramlau R.
Maximum a posteriori probability estimates in infinite-dimensional Bayesian inverse problems | 2015 Publication type A1 Journal article (refereed), original research Author(s) Helin Tapio, Burger Martin
Finite element-wavelet hybrid algorithm for atmospheric tomography | 2014 Publication type A1 Journal article (refereed), original research Author(s) Yudytskiy Mykhaylo, Helin Tapio, Ramlau Ronny
Inverse Problem for the Wave Equation with a White Noise Source | 2014 Publication type A1 Journal article (refereed), original research Author(s) Helin Tapio, Lassas Matti, Oksanen Lauri
A frequency dependent preconditioned wavelet method for atmospheric tomography | 2013 Publication type A4 Conference proceedings Author(s) Yudytskiy Mykhaylo, Helin Tapio, Ramlau Ronny
Wavelet methods in multi-conjugate adaptive optics | 2013 Publication type A1 Journal article (refereed), original research Author(s) Helin Tapio, Yudytskiy Mykhaylo
An inverse problem for the wave equation with one measurement and the pseudorandom source | 2012 Publication type A1 Journal article (refereed), original research Author(s) Helin Tapio, Lassas Matti, Oksanen Lauri
Hierarchical models in statistical inverse problems and the Mumford-Shah functional | 2011 Publication type A1 Journal article (refereed), original research Author(s) Helin Tapio, Lassas Matti Other Focus Area LUT School of Engineering Sciences
Infinite photography: New mathematical model for high-resolution images | 2010 Publication type A1 Journal article (refereed), original research Author(s) Helin Tapio, Lassas Matti, Siltanen Samuli Other Focus Area LUT School of Engineering Sciences
On the stability of MAP estimation with hierarchical prior distributions | 2010 Publication type A4 Conference proceedings Author(s) Helin Tapio, Lassas Matti
The preface of the session on statistical methods in inverse problems | 2010 Publication type A4 Conference proceedings Author(s) Helin T., Pikkarainen H.
On infinite-dimensional hierarchical probability models in statistical inverse problems | 2009 Publication type A1 Journal article (refereed), original research Author(s) Helin Tapio Other Focus Area LUT School of Engineering Sciences