9 citations · 12 across the 3 of their papers we have counts for
8 papers
Non-Stationary Multi-layered Gaussian Priors for Bayesian Inversion
Muhammad Emzir, Sari Lasanen, Zenith Purisha +2
In this article, we study Bayesian inverse problems with multi-layered Gaussian priors. We first describe the conditionally Gaussian layers in terms of a system of stochastic parti…
Multispectral Photon-Counting for Medical Imaging and Beam Characterization
E. Brücken, S. Bharthuar, M. Emzir +18
We present the current status of our project of developing a photon counting detector for medical imaging. An example motivation lays in producing a monitoring and dosimetry device…
Dynamic 3D Tomographic X-ray Data of Ladybug
Juliaana Juurakko, Zenith Purisha, Simo Särkkä
This is the documentation of the 3D dynamic tomographic X-ray (CT) data of a ladybug. The open data set is available https://zenodo.org/record/3375488#.XV_T3vxS9oA and can be freel…
CT Data of a Pen-Spring: Application to Under-Sampled Dynamic X-ray Tomography
Juliaana Juurakko, Zenith Purisha, Simo Särkkä
This is the documentation of Computed Tomography (CT) data of a pen-spring. The open data set is available at https://zenodo.org/record/3266936#.XRyMdCZS9oA and can be freely used…
Probabilistic approach to limited-data computed tomography reconstruction
Zenith Purisha, Carl Jidling, Niklas Wahlström +2
In this work, we consider the inverse problem of reconstructing the internal structure of an object from limited x-ray projections. We use a Gaussian process prior to model the tar…
Undersampled dynamic X-ray tomography with dimension reduction Kalman filter
Janne Hakkarainen, Zenith Purisha, Antti Solonen +1
In this paper, we consider prior-based dimension reduction Kalman filter for undersampled dynamic X-ray tomography. With this method, the X-ray reconstructions are parameterized by…