Search Results - "Purisha, Zenith"

A virtual anti-scatter grid for multi-energy photon counting detector systems by Purisha, Zenith, Winkler, Alexander, Emzir, Muhammad, Hostettler, Roland, Luukka, Panja, Särkkä, Simo

“…Photon-counting (PC) systems are the next technological generation of medical computed tomography (CT) imaging and is being worked on by all major system…”
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Undersampled Dynamic X-Ray Tomography With Dimension Reduction Kalman Filter by Hakkarainen, Janne, Purisha, Zenith, Solonen, Antti, Siltanen, Samuli

“…In this paper, we propose a prior-based dimension reduction Kalman filter for undersampled dynamic X-ray tomography. With this method, the X-ray…”
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An Automatic Regularization Method: An Application for 3-D X-Ray Micro-CT Reconstruction Using Sparse Data by Purisha, Zenith, Karhula, Sakari S., Ketola, Juuso H., Rimpelainen, Juho, Nieminen, Miika T., Saarakkala, Simo, Kroger, Heikki, Siltanen, Samuli

“…X-ray tomography is a reliable tool for determining the inner structure of 3-D object with penetrating X-rays. However, traditional reconstruction methods,…”
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Shape recovery for sparse‐data tomography by Haario, Heikki, Kallonen, Aki, Laine, Marko, Niemi, Esa, Purisha, Zenith, Siltanen, Samuli

“…A two‐dimensional sparse‐data tomographic problem is studied. The target is assumed to be a homogeneous object bounded by a smooth curve. A nonuniform rational…”
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Dynamic 3D Tomographic X-ray Data of Ladybug by Juurakko, Juliaana, Purisha, Zenith, Särkkä, Simo

“…This is the documentation of the 3D dynamic tomographic X-ray (CT) data of a ladybug. The open data set is available…”
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CT Data of a Pen-Spring: Application to Under-Sampled Dynamic X-ray Tomography by Juurakko, Juliaana, Purisha, Zenith, Särkkä, Simo

“…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…”
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Non-Stationary Multi-layered Gaussian Priors for Bayesian Inversion by Emzir, Muhammad, Lasanen, Sari, Purisha, Zenith, Roininen, Lassi, Särkkä, Simo

“…In this article, we study Bayesian inverse problems with multi-layered Gaussian priors. We first describe the conditionally Gaussian layers in terms of a…”
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Tomographic X-ray data of 3D emoji by Meaney, Alexander, Purisha, Zenith, Siltanen, Samuli

“…This is the documentation of the tomographic X-ray data of emoji phantom made available at https://zenodo.org/record/1183532#.WpA35Y5rIy1. The data can be…”
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Undersampled dynamic X-ray tomography with dimension reduction Kalman filter by Hakkarainen, Janne, Purisha, Zenith, Solonen, Antti, Siltanen, Samuli

“…In this paper, we consider prior-based dimension reduction Kalman filter for undersampled dynamic X-ray tomography. With this method, the X-ray reconstructions…”
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Hilbert-Space Reduced-Rank Methods For Deep Gaussian Processes by Emzir, Muhammad F., Lasanen, Sari, Purisha, Zenith, Sarkka, Simo

“…A deep Gaussian process is a hierarchy of Gaussian processes where the process at each level is Gaussian given the process on the next level. In this paper, we…”
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Millimeter-Wave Imaging Method based on Frequency-Diverse Subarrays by Leino, Mikko K., Ala-Laurinaho, Juha, Purisha, Zenith, Sarkka, Simo, Viikari, Ville

“…Method to reconstruct images with frequency diverse subarrays at millimeter-wave frequencies is presented. The imaging system consists of a set of transmit and…”
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Probabilistic approach to limited-data computed tomography reconstruction by Purisha, Zenith, Jidling, Carl, Wahlström, Niklas, Särkkä, Simo, Schön, Thomas B

“…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…”
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Controlled Wavelet Domain Sparsity in X-ray Tomography by Purisha, Zenith, Rimpeläinen, Juho, Bubba, Tatiana, Siltanen, Samuli

“…Tomographic reconstruction is an ill-posed inverse problem that calls for regularization. One possibility is to require sparsity of the unknown in an…”
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Tomographic X-ray data of carved cheese by Bubba, Tatiana A, Juvonen, Markus, Lehtonen, Jonatan, März, Maximilian, Meaney, Alexander, Purisha, Zenith, Siltanen, Samuli

“…This is the documentation of the tomographic X-ray data of a carved cheese slice. Data are available at www.fips.fi/dataset.php, and can be freely used for…”
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An automatic regularization method: An application for 3D X-ray micro-CT reconstruction using sparse data by Purisha, Zenith, Karhula, Sakari S, Ketola, Juuso, Rimpeläinen, Juho, Nieminen, Miika T, Saarakkala, Simo, Kröger, Heikki, Siltanen, Samuli

“…X-ray tomography is a reliable tool for determining the inner structure of 3D object with penetrating X-rays. However, traditional reconstruction methods such…”
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Shape recovery from sparse tomographic X-ray data by Haario, Heikki, Kallonen, Aki, Laine, Marko, Niemi, Esa, Purisha, Zenith, Siltanen, Samuli

“…A two-dimensional tomographic problem is studied. The target is assumed to be a homogeneous object bounded by a smooth curve. A Non Uniform Rational Basis…”
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