Publications related to Filter bank

Distributed signal processing for binaural hearing aids

Over the last centuries, hearing aids have evolved from crude and bulky horn-shaped instruments to lightweight and almost invisible digital signal processing devices. While most of the research has focused on the design of monaural apparatus, the use of a ...

EPFL2008

The Pairing of a Wavelet Basis With a Mildly Redundant Analysis via Subband Regression

Michaël Unser, Dimitri Nestor Alice Van De Ville

A distinction is usually made between wavelet bases and wavelet frames. The former are associated with a one-to-one representation of signals, which is somewhat constrained but most efficient computationally. The latter are over-complete, but they offer ad ...

Institute of Electrical and Electronics Engineers2008

Feature Extraction for Image Super-resolution using Finite Rate of Innovation Principles

Loïc Arnaud Baboulaz

To understand a real-world scene from several multiview pictures, it is necessary to find the disparities existing between each pair of images so that they are correctly related to one another., This process. called image registration, reguires the extract ...

Imperial College London2008

SURE-LET Multichannel Image Denoising: Interscale Orthonormal Wavelet Thresholding

Thierry Blu, Florian Luisier

We propose a vector/matrix extension of our denoising algorithm initially developed for grayscale images, in order to efficiently process multichannel (e.g., color) images. This work follows our recently published SURE-LET approach where the denoising algo ...

Institute of Electrical and Electronics Engineers2008

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

A fast thresholded landweber algorithm for general wavelet bases: Application to 3D deconvolution microscopy

Michaël Unser, Cédric René Jean Vonesch

Wavelet-domain l(1)-regularization is a promising approach to deconvolution. The corresponding variational problem can be solved using a "thresholded Landweber" (TL) algorithm. While this iterative procedure is simple to implement, it is known to converge ...

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

Perceptually motivated Sub-band Decomposition for FDLP Audio Coding

Petr Motlicek, Hynek Hermansky, Sriram Ganapathy

This paper describes employment of non-uniform QMF decomposition to increase the efficiency of a generic wide-band audio coding system based on Frequency Domain Linear Prediction (FDLP). The base line FDLP codec, operating at high bit-rates (~136 kbps), ex ...

Springer-Verlag Berlin, Heidelberg2008

The Monogenic Riesz-Laplace Wavelet Transform

Michaël Unser, Dimitri Nestor Alice Van De Ville, Katarina Balac

We introduce a family of real and complex wavelet bases of

L _{ 2 }

(\mathbb{R} ^{ 2 }

) that are directly linked to the Laplace and Riesz operators. The crucial point is that the family is closed with respect to the Riesz transform which maps a re ...

EURASIP2008

A Fast Iterative Thresholding Algorithm for Wavelet-Regularized Deconvolution

Michaël Unser, Cédric René Jean Vonesch

We present an iterative deconvolution algorithm that minimizes a functional with a non-quadratic wavelet-domain regularization term. Our approach is to introduce subband-dependent parameters into the bound optimization framework of Daubechies et al.; it is ...

SPIE2007

Method to generate multi-channel audio signals from stereo signals

Christof Faller

A perceptually motivated spatial decomposition for two-channel stereo audio signals, capturing the information about the virtual sound stage, is proposed. The spatial decomposition allows to re-synthesize audio signals for playback over other sound systems ...

2007

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Distributed signal processing for binaural hearing aids

The Pairing of a Wavelet Basis With a Mildly Redundant Analysis via Subband Regression

Feature Extraction for Image Super-resolution using Finite Rate of Innovation Principles

SURE-LET Multichannel Image Denoising: Interscale Orthonormal Wavelet Thresholding

A Fast Thresholded Landweber Algorithm for Wavelet-Regularized Multidimensional Deconvolution

A fast thresholded landweber algorithm for general wavelet bases: Application to 3D deconvolution microscopy

Perceptually motivated Sub-band Decomposition for FDLP Audio Coding

The Monogenic Riesz-Laplace Wavelet Transform

A Fast Iterative Thresholding Algorithm for Wavelet-Regularized Deconvolution

Method to generate multi-channel audio signals from stereo signals

Feature Extraction for Image Super-resolution using Finite Rate of Innovation Principles

Method to generate multi-channel audio signals from stereo signals

Distributed signal processing for binaural hearing aids

A fast thresholded landweber algorithm for general wavelet bases: Application to 3D deconvolution microscopy

The Pairing of a Wavelet Basis With a Mildly Redundant Analysis via Subband Regression

A Fast Thresholded Landweber Algorithm for Wavelet-Regularized Multidimensional Deconvolution

Perceptually motivated Sub-band Decomposition for FDLP Audio Coding

SURE-LET Multichannel Image Denoising: Interscale Orthonormal Wavelet Thresholding

A Fast Iterative Thresholding Algorithm for Wavelet-Regularized Deconvolution

The Monogenic Riesz-Laplace Wavelet Transform