Publications associées à Fast and automated wavelet-regularized image restoration in fluorescence microscopy

The SURE-LET approach to image denoising

Denoising is an essential step prior to any higher-level image-processing tasks such as segmentation or object tracking, because the undesirable corruption by noise is inherent to any physical acquisition device. When the measurements are performed by phot ...

EPFL2010

Fast Interscale Wavelet Denoising of Poisson-Corrupted Images

Michaël Unser, Thierry Blu, Cédric René Jean Vonesch, Florian Luisier

We present a fast algorithm for image restoration in the presence of Poisson noise. Our approach is based on (1) the minimization of an unbiased estimate of the MSE for Poisson noise, (2) a linear parametrization of the denoising process and (3) the preser ...

Elsevier2010

Graph-based classification of multiple observation sets

Pascal Frossard, Effrosyni Kokiopoulou

We consider the problem of classification of multiple observations of the same object, possibly under different transformations. We view this problem as a special case of semi-supervised learning where all unlabelled examples belong to the same unknown cla ...

Elsevier2010

Method and Device for Removing Echo in an Audio Signal

Christof Faller

Acoustic echo control and noise suppression is an important part of any "handsfree" telecommunication system, such as telephony or audio or video conferencing systems. Bandwidth and computational complexity constraints have prevented that stereo or multi-c ...

2010

Accelerated Wavelet-Regularized Deconvolution for 3-D Fluorescence Microcopy

Michaël Unser, Matthieu Guerquin-Kern, Ilker Bayram, Raquel Terrés Cristofani

Modern deconvolution algorithms are often specified as minimization problems involving a non-quadratic regularization functional. When the latter is a wavelet-domain

ℓ _{ 1 }

-norm that favors sparse solutions, the problem can be solved by a simple it ...

IEEE2010

Constructing and decoding GWBE codes using Kronecker products

Mohammadjavad Faraji, Pedram Pad

In this letter, we introduce a novel method for constructing large size generalized Welch bound equality (GWBE) matrices. This method can also be used for the construction of large WBE matrices. The advantage of this method is its low complexity for constr ...

Institute of Electrical and Electronics Engineers2010

A Fast Thresholded Landweber Algorithm for Wavelet-Regularized Multidimensional Deconvolution

Michaël Unser, Cédric René Jean Vonesch

We present a fast variational deconvolution algorithm that minimizes a quadratic data term subject to a regularization on the

\ell ^{ 1 }

-norm of the wavelet coefficients of the solution. Previously available methods have essentially consisted in alte ...

IEEE2008

Estimating interdependences in networks of weakly coupled deterministic systems

Oscar De Feo, Cristian Carmeli

The extraction of information from measured data about the interactions taking place in a network of systems is a key topic in modern applied sciences. This topic has been traditionally addressed considering bivariate time series, providing methods that ar ...

2008

Method And Device For Removing Echo In A Multi-Channel Audio Signal

Christof Faller

Acoustic echo control and noise suppression is an important part of any "handsfree" telecommunication system, such as telephony or audio or video conferencing systems. Bandwidth and computational complexity constraints have prevented that stereo or multi-c ...

2008

An accurate PSF model with few parameters for axially shift-variant deconvolution

Michaël Unser, Dimitri Nestor Alice Van De Ville, François Aguet

Accurate knowledge of an imaging system's point spread function (PSF) is crucial for successful deconvolution. For fluorescence microscopy, PSF estimations based on either theoretical models or experimental measurements are available. However, due to the a ...

Ieee Service Center, 445 Hoes Lane, Po Box 1331, Piscataway, Nj 08855-1331 Usa2008

Fast and automated wavelet-regularized image restoration in fluorescence microscopy

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The SURE-LET approach to image denoising

Fast Interscale Wavelet Denoising of Poisson-Corrupted Images

Graph-based classification of multiple observation sets

Method and Device for Removing Echo in an Audio Signal

Accelerated Wavelet-Regularized Deconvolution for 3-D Fluorescence Microcopy

Constructing and decoding GWBE codes using Kronecker products

A Fast Thresholded Landweber Algorithm for Wavelet-Regularized Multidimensional Deconvolution

Estimating interdependences in networks of weakly coupled deterministic systems

Method And Device For Removing Echo In A Multi-Channel Audio Signal

An accurate PSF model with few parameters for axially shift-variant deconvolution

Method and Device for Removing Echo in an Audio Signal

Method And Device For Removing Echo In A Multi-Channel Audio Signal

Estimating interdependences in networks of weakly coupled deterministic systems

A Fast Thresholded Landweber Algorithm for Wavelet-Regularized Multidimensional Deconvolution

Fast Interscale Wavelet Denoising of Poisson-Corrupted Images

The SURE-LET approach to image denoising

Graph-based classification of multiple observation sets

Constructing and decoding GWBE codes using Kronecker products

Accelerated Wavelet-Regularized Deconvolution for 3-D Fluorescence Microcopy

An accurate PSF model with few parameters for axially shift-variant deconvolution