Publications related to PET REBINNING WITH REGULARIZED DENSITY SPLINES

Imaging of turbulent structures and tomographic reconstruction of GyM plasma emissivity

In GyM, a linear magnetized plasma device, low-frequency electrostatic fluctuations are measured by means of Langmuir probes. To complement electrostatic probe measurements of plasma turbulence and the study of plasma structures, a nonperturbative direct i ...

Amer Nuclear Soc2012

Optimal positioning of compression screws in reversed shoulder prostheses using patient specific computer tomography

Reversed shoulder prostheses are used for the treatment for glenohumeral arthritis associated to rotator cuff muscle deficiency. The glenoid component is fixed with peripheral screws, which provide the primary stability that is crucial for the long-term os ...

2011

Tomography-based determination of permeability and Dupuit-Forchheimer coefficient of characteristic snow samples

Sophia Haussener, Marc Schneebeli Zeugin, Aldo Steinfeld, Émilie Zermatten

A tomography-based methodology for the mass transport characterization of snow is presented. Five samples, characteristic for a wide range of seasonal snow, are considered. Their three-dimensional (3-D) geometrical representations are obtained by micro-com ...

International Glaciological Society2011

Dynamic PET Reconstruction Using Wavelet Regularization with Adapted Basis Functions

Michaël Unser, Dimitri Nestor Alice Van De Ville, Ildar Khalidov

Tomographic reconstruction from positron emission tomography (PET) data is an ill-posed problem that requires regularization. An attractive approach is to impose an

\ell_{ 1 }

-regularization constraint, which favors sparse solutions in the wavelet dom ...

Institute of Electrical and Electronics Engineers2008

Inverse problems in acoustic tomography

Ivana Jovanovic

Acoustic tomography aims at recovering the unknown parameters that describe a field of interest by studying the physical characteristics of sound propagating through the considered field. The tomographic approach is appealing in that it is non-invasive and ...

EPFL2008

Coupled tomography and distinct-element-method approach to exploring the granular media microstructure in a jamming hourglass

Giorgio Margaritondo, Michaël Unser, Thomas Liebling, Daniel Sage, Lionel Pournin, Slobodan Mitrovic, Marco Ramaioli, Michel Tsukahara, Vincent Gajdosik

We describe an approach for exploring microscopic properties of granular media that couples x-ray microtomography and distinct-element-method (DEM) simulations through image analysis. We illustrate it via the study of the intriguing phenomenon of instant a ...

APS2008

Single-photon image sensors in CMOS

Cristiano Niclass

Among advanced electronic designs, vision systems are perhaps those that have undergone the most dramatic technological revolutions of the last decades. Recently, a new family of vision systems has emerged aimed at three-dimensional (3D) imaging. Many appl ...

EPFL2008

"Plug and Play" single photons at 1.3 mu m approaching gigahertz operation

Blandine Alloing

We report a "plug and play" single photon source, fully integrated with an optical fiber, emitting at 1.3 mu m. Micropillars were patterned on a single layer InAs quantum dot wafer to guarantee a single pillar per fiber core. The single exciton peak filter ...

American Institute of Physics2008

Quantum efficiency measurement of n–i–p a-Si:H photodiode array on CMOS circuit for positron emission tomography (PET)

Sylvain Dunand, Werner Lustermann, Matthieu Despeisse

Detection of scintillation light from LSO (Lutetiumoxyorthosilicate) crystals used in positron emission tomography (PET) is traditionally based on photo- multipliers. The proposal is to develop a novel photo- sensor, which is based on vertically integratin ...

2008

Novel CMOS Analog Signal Processing Technique for Solid-State X-Ray Sensors in Medical Imaging Systems

Rafal Tomasz Dlugosz

Ability to peer into human body is an essential diagnostic tool in medicine. Out of the four major imaging modalities that include ultra-sound, magnetic resonance imaging (MRI), and positron emission tomography (PET), nuclear medicine is gaining more wides ...

2007

PET REBINNING WITH REGULARIZED DENSITY SPLINES

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Imaging of turbulent structures and tomographic reconstruction of GyM plasma emissivity

Optimal positioning of compression screws in reversed shoulder prostheses using patient specific computer tomography

Tomography-based determination of permeability and Dupuit-Forchheimer coefficient of characteristic snow samples

Dynamic PET Reconstruction Using Wavelet Regularization with Adapted Basis Functions

Inverse problems in acoustic tomography

Coupled tomography and distinct-element-method approach to exploring the granular media microstructure in a jamming hourglass

Single-photon image sensors in CMOS

"Plug and Play" single photons at 1.3 mu m approaching gigahertz operation

Quantum efficiency measurement of n–i–p a-Si:H photodiode array on CMOS circuit for positron emission tomography (PET)

Novel CMOS Analog Signal Processing Technique for Solid-State X-Ray Sensors in Medical Imaging Systems

Optimal positioning of compression screws in reversed shoulder prostheses using patient specific computer tomography

Tomography-based determination of permeability and Dupuit-Forchheimer coefficient of characteristic snow samples

Inverse problems in acoustic tomography

Coupled tomography and distinct-element-method approach to exploring the granular media microstructure in a jamming hourglass

Novel CMOS Analog Signal Processing Technique for Solid-State X-Ray Sensors in Medical Imaging Systems

"Plug and Play" single photons at 1.3 mu m approaching gigahertz operation

Imaging of turbulent structures and tomographic reconstruction of GyM plasma emissivity

Dynamic PET Reconstruction Using Wavelet Regularization with Adapted Basis Functions

Single-photon image sensors in CMOS

Quantum efficiency measurement of n–i–p a-Si:H photodiode array on CMOS circuit for positron emission tomography (PET)