Publications associées à Iterative reconstruction

JULIDE: a software tool for 3D reconstruction and statistical analysis of autoradiographic mouse brain sections

Jean-Philippe Thiran, Pierre Magistretti, Delphine Ribes Lemay, Rémi Charrier

In this article we introduce JULIDE, a software toolkit developed to perform the 3D reconstruction, intensity normalization, volume standardization by 3D image registration and voxel-wise statistical analysis of autoradiographs of mouse brain sections. Thi ...

Public Library of Science2011

An Alps View of Sparse Recovery

Volkan Cevher

We provide two compressive sensing (CS) recovery algorithms based on iterative hard-thresholding. The algorithms, collectively dubbed as algebraic pursuits (ALPS), exploit the restricted isometry properties of the CS measurement matrix within the algebra o ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2011

Very fast light-induced degradation of a-Si:H/c-Si(100) interfaces

Christophe Ballif, Antoine Descoeudres, Stefaan De Wolf, Bénédicte Demaurex

Light-induced degradation (LID) of crystalline silicon (c-Si) surfaces passivated with hydrogenated amorphous silicon (a-Si:H) is investigated. The initial passivation decays on polished c-Si(100) surfaces on a time scale much faster than usually associate ...

2011

Exact Complex-Wave Reconstruction in Digital Holography

Michaël Unser, Christian Depeursinge, Nicolas Pavillon, Chandra Sekhar Seelamantula

We address the problem of exact complex-wave reconstruction in digital holography. We show that, by confining the object-wave modulation to one quadrant of the frequency domain, and by maintaining a reference-wave intensity higher than that of the object, ...

OSA2011

A Fast Wavelet-Based Reconstruction Method for Magnetic Resonance Imaging

Michaël Unser, Matthieu Guerquin-Kern

In this work, we exploit the fact that wavelets can represent magnetic resonance images well, with relatively few coefficients. We use this property to improve magnetic resonance imaging (MRI) reconstructions from undersampled data with arbitrary k-space t ...

Institute of Electrical and Electronics Engineers2011

Recipes on Hard Thresholding Methods

Volkan Cevher, Anastasios Kyrillidis

Compressive sensing (CS) is a data acquisition and recovery technique for finding sparse solutions to linear inverse problems from sub-Nyquist measurements. CS features a wide range of computationally efficient and robust signal recovery methods, based on ...

2011

On Accelerated Hard Thresholding Methods for Sparse Approximation

Volkan Cevher

We propose and analyze acceleration schemes for hard thresholding methods with applications to sparse approximation in linear inverse systems. Our acceleration schemes fuse combinatorial, sparse projection algorithms with convex optimization algebra to pro ...

Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa2011

An Efficient Numerical Method for General

Michaël Unser, Jean-Charles Baritaux, Kai Hassler

Reconstruction algorithms for fluorescence tomography have to address two crucial issues : 1) the ill-posedness of the reconstruction problem, 2) the large scale of numerical problems arising from imaging of 3-D samples. Our contribution is the design and ...

IEEE2010

Optical Imaging Using Binary Sensors

Michaël Unser, François Aguet, Aurélien Bourquard

This paper addresses the problem of reconstructing an image from 1-bit-quantized measurements, considering a simple but nonconventional optical acquisition model. Following a compressed-sensing design, a known pseudo-random phase-shifting mask is introduce ...

OSA2010

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Iterative reconstruction

JULIDE: a software tool for 3D reconstruction and statistical analysis of autoradiographic mouse brain sections

An Alps View of Sparse Recovery

Very fast light-induced degradation of a-Si:H/c-Si(100) interfaces

Exact Complex-Wave Reconstruction in Digital Holography

A Fast Wavelet-Based Reconstruction Method for Magnetic Resonance Imaging

Recipes on Hard Thresholding Methods

On Accelerated Hard Thresholding Methods for Sparse Approximation

Online loop closure for real-time interactive 3D scanning

An Efficient Numerical Method for General

Optical Imaging Using Binary Sensors

Graph Chatbot

Chattez avec Graph Search

JULIDE: a software tool for 3D reconstruction and statistical analysis of autoradiographic mouse brain sections

An Alps View of Sparse Recovery

On Accelerated Hard Thresholding Methods for Sparse Approximation

Very fast light-induced degradation of a-Si:H/c-Si(100) interfaces

An Efficient Numerical Method for General

Exact Complex-Wave Reconstruction in Digital Holography

Optical Imaging Using Binary Sensors

Recipes on Hard Thresholding Methods

Online loop closure for real-time interactive 3D scanning

A Fast Wavelet-Based Reconstruction Method for Magnetic Resonance Imaging