Search Results - "Lionheart, William R. B."

In Vivo Impedance Imaging With Total Variation Regularization by Borsic, A., Graham, B.M., Adler, A., Lionheart, W.

“…We show that electrical impedance tomography (EIT) image reconstruction algorithms with regularization based on the total variation (TV) functional are…”
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A hybrid multi-particle approach to range assessment-based treatment verification in particle therapy by Meric, Ilker, Alagoz, Enver, Hysing, Liv B., Kögler, Toni, Lathouwers, Danny, Lionheart, William R. B., Mattingly, John, Obhodas, Jasmina, Pausch, Guntram, Pettersen, Helge E. S., Ratliff, Hunter N., Rovituso, Marta, Schellhammer, Sonja M., Setterdahl, Lena M., Skjerdal, Kyrre, Sterpin, Edmond, Sudac, Davorin, Turko, Joseph A., Ytre-Hauge, Kristian S.

“…Particle therapy (PT) used for cancer treatment can spare healthy tissue and reduce treatment toxicity. However, full exploitation of the dosimetric advantages…”
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Impact of Model Shape Mismatch on Reconstruction Quality in Electrical Impedance Tomography by Grychtol, Bartłomiej, Lionheart, William R. B., Bodenstein, Marc, Wolf, Gerhard K., Adler, Andy

“…Electrical impedance tomography (EIT) is a low-cost, noninvasive and radiation free medical imaging modality for monitoring ventilation distribution in the…”
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Absolute Conductivity Reconstruction in Magnetic Induction Tomography Using a Nonlinear Method by Soleimani, M., Lionheart, W.R.B.

“…Magnetic induction tomography (MIT) attempts to image the electrical and magnetic characteristics of a target using impedance measurement data from pairs of…”
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Three Dimensional Polarimetric Neutron Tomography of Magnetic Fields by Sales, Morten, Strobl, Markus, Shinohara, Takenao, Tremsin, Anton, Kuhn, Luise Theil, Lionheart, William R. B., Desai, Naeem M., Dahl, Anders Bjorholm, Schmidt, Søren

“…Through the use of Time-of-Flight Three Dimensional Polarimetric Neutron Tomography (ToF 3DPNT) we have for the first time successfully demonstrated a…”
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GREIT: a unified approach to 2D linear EIT reconstruction of lung images by Adler, Andy, Arnold, John H, Bayford, Richard, Borsic, Andrea, Brown, Brian, Dixon, Paul, Faes, Theo J C, Frerichs, Inéz, Gagnon, Hervé, Gärber, Yvo, Grychtol, Bartłomiej, Hahn, Günter, Lionheart, William R B, Malik, Anjum, Patterson, Robert P, Stocks, Janet, Tizzard, Andrew, Weiler, Norbert, Wolf, Gerhard K

“…Electrical impedance tomography (EIT) is an attractive method for clinically monitoring patients during mechanical ventilation, because it can provide a…”
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Histogram tomography by R. B. Lionheart, William

“…In many tomographic imaging problems the data consist of integrals along lines or curves. Increasingly we encounter “rich tomography” problems where the…”
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Identification of metallic objects using spectral magnetic polarizability tensor signatures: Object classification by Wilson, Ben A., Ledger, Paul D., Lionheart, William R. B.

“…The early detection of terrorist threat objects, such as guns and knives, through improved metal detection, has the potential to reduce the number of attacks…”
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Core Imaging Library - Part II: multichannel reconstruction for dynamic and spectral tomography by Papoutsellis, Evangelos, Ametova, Evelina, Delplancke, Claire, Fardell, Gemma, Jørgensen, Jakob S, Pasca, Edoardo, Turner, Martin, Warr, Ryan, Lionheart, William R B, Withers, Philip J

“…The newly developed core imaging library (CIL) is a flexible plug and play library for tomographic imaging with a specific focus on iterative reconstruction…”
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An Explicit Formula for the Magnetic Polarizability Tensor for Object Characterization by Ledger, Paul D., Lionheart, William R. B.

“…The magnetic polarizability tensor (MPT) has attracted considerable interest due to the possibility it offers for characterizing conducting objects and…”
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Uses and abuses of EIDORS: an extensible software base for EIT by Adler, Andy, Lionheart, William R B

“…EIDORS is an open source software suite for image reconstruction in electrical impedance tomography and diffuse optical tomography, designed to facilitate…”
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Properties of generalized magnetic polarizability tensors by Ledger, Paul David, Lionheart, William R. B.

“…We present new alternative complete asymptotic expansions for the time harmonic low‐frequency magnetic field perturbation caused by the presence of a…”
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Identification of metallic objects using spectral magnetic polarizability tensor signatures: Object characterisation and invariants by Ledger, Paul D., Wilson, Ben A., Amad, Alan A. S., Lionheart, William R. B.

“…The early detection of terrorist threat objects, such as guns and knives, through improved metal detection, has the potential to reduce the number of attacks…”
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EIT reconstruction algorithms: pitfalls, challenges and recent developments by Lionheart, William R B

“…We review developments, issues and challenges in electrical impedance tomography (EIT) for the 4th Conference on Biomedical Applications of Electrical…”
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Measuring the Magnetic Polarizability Tensor of Nonsymmetrical Metallic Objects by Özdeğer, Toykan, Davidson, John L., Ledger, Paul D., Conniffe, Daniel, Lionheart, William R. B., Peyton, Anthony J.

“…The magnetic polarizability tensor (MPT) is a representative electromagnetic property of a metallic object, which depends on the size, material, shape, and…”
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Measuring the Magnetic Polarizability Tensor Using an Axial Multi-Coil Geometry by Ozdeger, Toykan, Davidson, John L., van Verre, Wouter, Marsh, Liam A., Lionheart, William R. B., Peyton, Anthony J.

“…The Magnetic Polarizability Tensor (MPT) is a representative property of an electrically conducting or magnetic object that includes information about the…”
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Lipschitz stability at the boundary for time-harmonic diffuse optical tomography by Doeva, Olga, Gaburro, Romina, Lionheart, William R. B., Nolan, Clifford J.

“…We study the inverse problem in Optical Tomography of determining the optical properties of a medium , with , under the so-called diffusion approximation. We…”
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Reconstruction of spatially inhomogeneous dielectric tensors through optical tomography by Hammer, Hanno, Lionheart, William R B

“…A method to reconstruct weakly anisotropic inhomogeneous dielectric tensors inside a transparent medium is proposed. The mathematical theory of integral…”
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On the Feasibility of Automated Mechanical Ventilation Control Through EIT by Tregidgo, Henry F. J., Crabb, Michael G., Hazel, Andrew L., Lionheart, William R. B.

“…Objective: This paper aims to demonstrate the feasibility of coupling electrical impedance tomography (EIT) with models of lung function in order to recover…”
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Validation of a finite-element solution for electrical impedance tomography in an anisotropic medium by Abascal, Juan-Felipe P J, Arridge, Simon R, Lionheart, William R B, Bayford, Richard H, Holder, David S

“…Electrical impedance tomography is an imaging method, with which volumetric images of conductivity are produced by injecting electrical current and measuring…”
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