Publications related to Light spectral filtering based on spatial adiabatic passage

Exact Acceleration of Linear Object Detectors

We describe a general and exact method to considerably speed up linear object detection systems operating in a sliding, multi-scale window fashion, such as the individual part detectors of part-based models. The main bottleneck of many of those systems is ...

2012

Doubly sparse models for multiple filter estimation in sparse echoic environments

Pierre Vandergheynst, Rémi Gribonval

We consider the estimation of multiple time-domain sparse filters from echoic mixtures of several unknown sources, when the sources are sparse in the time-frequency domain. We propose a sparse filter estimation framework consisting of two steps: a) a clust ...

2012

On the Relevance of Sparsity for Image Classification

Pascal Fua, Engin Türetken, Vincent Lepetit, Germán González Serrano, Roberto Rigamonti, Matthew Brown, Fethallah Benmansour

In this paper we analyze empirically the importance of sparsifying representations for classification purposes. We focus on those obtained by convolving images with linear filters, which can be either hand designed or learned, and perform extensive experim ...

2012

Light filter and method for using such filter

Demetri Psaltis, Andreas Vasdekis, Julien Cuennet

The invention concerns a light filter comprising a plate defined by a length along a direction x, a width along a direction y and a height along a direction z said plate including at least one chamber containing Liquid Crystals (LC) molecules and which is ...

2012

Bi-Exponential Edge-Preserving Smoother

Michaël Unser, Daniel Sage, Philippe Thévenaz

Edge-preserving smoothers need not be taxed by a severe computational cost. We present, in this paper, a lean algorithm that is inspired by the bi-exponential filter and preserves its structure-a pair of one-tap recursions. By a careful but simple local ad ...

Institute of Electrical and Electronics Engineers2012

A 2.4 GHz MEMS based sub-sampling receiver front-end with low power channel selection filtering at RF

Christian Enz, Aravind Prasad Heragu Singaiyengar

A sub-sampling RF front end which exploits the intrinsically high quality factor of MEMS devices for performing channel filtering directly at RF is proposed in this work. This narrow band filtering at RF also acts as a good anti-aliasing filter to support ...

2012

Spatio-Chromatic Decorrelation by Shift-Invariant Filtering

Pascal Fua, Sabine Süsstrunk, Matthew Brown

In this paper we derive convolutional filters for colour image whitening and decorrelation. Whilst whitening can be achieved via eigendecomposition of the image patch covariance, this operation is neither efficient nor biologically plausible. Given the shi ...

2011

Fully Passivated AlInN/GaN HEMTs With f(T)/f(MAX) of 205/220 GHz

Nicolas Grandjean, Jean-François Carlin

We report the fabrication and characterization of 30-nm-gate fully passivated AlInN/GaN high-electron mobility transistors (HEMTs) with cutoff frequencies f(T) and f(MAX) simultaneously exceeding 200 GHz at a given bias point. The current gain cutoff frequ ...

2011

Low-Power and Widely-Tunable Linearized Biquadratic Low-Pass Transconductor-C Filter

Seyed Armin Tajalli, Yusuf Leblebici

A sixth-order low-pass

g_m

-C filter with a very wide tuning range (

f_c

= 100 Hz to 10 MHz) is presented. The wide tuning range has been achieved without using switchable components or programmable building blocks. A single stage folded-cascode transcon ...

Institute of Electrical and Electronics Engineers2011

RF MEMS Switches for Wide-band (5 - 40 GHz), Tuneable Filters and DMTL Phase Shifters

Montserrat Fernandez-Bolanos Badia

In wireless communications, radio frequency micro-electro-mechanical systems (RF MEMS) technology is attracting tremendous interest across the world as the needs of frequencies gets higher, data bandwidth gets larger and multiple broadband signals have to ...

EPFL2010

Light spectral filtering based on spatial adiabatic passage

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Exact Acceleration of Linear Object Detectors

Doubly sparse models for multiple filter estimation in sparse echoic environments

On the Relevance of Sparsity for Image Classification

Light filter and method for using such filter

Bi-Exponential Edge-Preserving Smoother

A 2.4 GHz MEMS based sub-sampling receiver front-end with low power channel selection filtering at RF

Spatio-Chromatic Decorrelation by Shift-Invariant Filtering

Fully Passivated AlInN/GaN HEMTs With f(T)/f(MAX) of 205/220 GHz

Low-Power and Widely-Tunable Linearized Biquadratic Low-Pass Transconductor-C Filter

RF MEMS Switches for Wide-band (5 - 40 GHz), Tuneable Filters and DMTL Phase Shifters

Exact Acceleration of Linear Object Detectors

A 2.4 GHz MEMS based sub-sampling receiver front-end with low power channel selection filtering at RF

Spatio-Chromatic Decorrelation by Shift-Invariant Filtering

Light filter and method for using such filter

On the Relevance of Sparsity for Image Classification

Bi-Exponential Edge-Preserving Smoother

Low-Power and Widely-Tunable Linearized Biquadratic Low-Pass Transconductor-C Filter

Fully Passivated AlInN/GaN HEMTs With f(T)/f(MAX) of 205/220 GHz

RF MEMS Switches for Wide-band (5 - 40 GHz), Tuneable Filters and DMTL Phase Shifters

Doubly sparse models for multiple filter estimation in sparse echoic environments