Publications de Martin Vetterli

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We present a new method for compressing spatio-temporal audio data for reproduction through Wave Field Synthesis. The data is obtained by sampling the sound field in space at equally-spaced points on a straight line, and transformed into the frequency doma ...

Sparse sampling of continuous-time sparse signals is addressed. In particular, it is shown that sampling at the rate of innovation is possible, in some sense applying Occam's razor to the sampling of sparse signals. The noisy case is analyzed and solved, p ...

Environmental monitoring constitutes an important field of application for wireless sensor networks. Given the severity of potential climate changes, environmental impact on cities, and pollution, it is a domain where sensor networks can have great impact ...

A system for automated annotation of images and videos points a mobile device towards an object of interest, such as a building or landscape scenery, for the device to display an image of the scene with an annotation for the object. An annotation can inclu ...

Cet article présente un algorithme rapide pour le calcul de la transformée de Fourier discrète et de la transformée en cosinus discrète, et ceci lorsque la longueur de la transformation est une puissance de 2. Il atteint le nombre minimal connu d’opérations (multiplications et additions) pour la transformation de Fourier discrète de séquences réelles, complexes, symétriques et antisymétriques, pour la transformation de Fourier discrète impaire ainsi que pour la transformation en cosinus discrète. L’extensio

Method for processing a circular light field comprising the step of receiving or storing a circular light field matrix, wherein the circular light field matrix comprises pixel data for different circumferential angles and for different incidence angles, wh ...

We study a modification of the orthogonal matching pursuit (OMP) for estimating sparse multipath channels. The reflectors that generate the multipath components are not ideal; rather, they act as filters, so that the returned pulses are reshaped and widene ...

Previous work has not shown if learned components for lensless image reconstruction can generalize to physical modifications. In this work, we train a reconstruction approach on an open-sourced, multi-mask dataset, and demonstrate improved generalizability ...

The ten articles in this special section provide the reader with specific insights into the basic theory, capabilities, and limitations of compressed sensing (CS). ...

We propose an LCD-based lensless camera for compressive and programmable sensing. The system is low-cost (less than 100 USD) and reproducible. We model the proposed system, and demonstrate experimental results for imaging and classification. ...

The invention refers to a method for analysing reflected light of an object. First a light angle distribution for a point of the object is determined. Then a plenoptic projector is controlled to illuminate the point of the object with the determined light ...

A networked set of agents holding binary opinions does not seem to be able to compute its majority opinion by means of local binary interactions only. However, the majority problem can be solved using two or more bits, instead of one [1]. Pairs of agents a ...

Martin Vetterli

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Wave field coding in the spacetime frequency domain

Sparse Sampling of Signal Innovations

Localizing Point Sources in Diffusion Fields from Spatiotemporal Samples

Shedding light on 19th century spectra by analyzing Lippmann photography

SensorScope: Out-of-the-Box Environmental Monitoring

Noninvasive temperature monitoring in breast-mimicking phantoms using acoustic tomography

Image annotation on portable devices

Algorithmes de transformations de Fourier et en cosinus mono et bidimensionnels

Method, apparatus and program for processing a circular light field

OMP with Unknown Filters for Multipath Channel Estimation

Generalizing Learning-Based Lensless Image Reconstruction to Mask Pattern Changes

Compressive sampling

DigiCam: Single-Shot Lensless Sensing with a Low-Cost Programmable Mask

Method, system and computer program for determining a reflectance distribution function of an object

The Distributed Multiple Voting Problem

Introduction to the Issue on Gossiping Algorithms Design and Applications

Adaptive filtering in sub-bands

Oversampled FIR filter banks and frames in l2(Z)

Image denoising using orthonormal finite ridgelet transform

Projection methods in motion estimation and compensation