Publications related to Correcting for non-periodic behaviour in perturbative experiments: application to heat pulse propagation and modulated gas-puff experiments

Multiple harmonic sound sources separation in the under-determined case based on both goniometric and beamforming approaches

Hervé Lissek, Xavier Falourd, Patrick Marmaroli

Usually acoustic beamformer or directive microphones are used in order to focus on known potential locations emitting sounds so as to identify and extract their major noise components. However performances of these techniques depend on the number of microp ...

2009

Compensating Printer Modulation Transfer Function in Spatial and Color Adaptive Rendering Workflows

Albrecht Johannes Lindner

Experiments have shown that the quality of printed images depends on the capacity of the printing system to accurately re- produce details. We propose to improve the quality by compensat- ing for the Modulation Transfer Function (MTF) of the printing syste ...

2008

Extended focus optical coherence microscopy and fluorescence lifetime imaging

Theo Lasser, Rainer Leitgeb, Martin Villiger, Adrian Bachmann, Cédric Blatter

Fourier domain Optical coherence microscopy (FDOCM) offers excellent sensitivity and high axial resolution to image the structure of biological tissue. The depth information is extracted in parallel and allows very high volume acquisition rates. The presen ...

SPIE2008

Study of the solar anisotropy of cosmic ray primaries of about 200 GeV energy with the L3+C muon detector

Qian Wang, Aurelio Bay, Horst Vogel, Eduardo Sanchez, Zhirui Xu, Werner Lustermann, Liang Sun, Jian Zhao, Yu Lei, Ji Hyun Kim, Zheng Wang, Matthias Weber, Xiao Wang, Yifei Guo, Xuan Yang

Context. Primary cosmic rays experience multiple deflections in the non-uniform galactic and heliospheric magnetic fields which may generate anisotropies. Aims. A study of anisotropies in the energy range between 100 and 500 GeV is performed. This energy r ...

2008

Extended focus Fourier domain optical coherence microscopy and fluorescence lifetime imaging

Theo Lasser, Rainer Leitgeb, Martin Villiger, Adrian Bachmann, Cédric Blatter

Fourier domain Optical coherence microscopy (FDOCM) offers excellent sensitivity and high axial resolution to image the structure of biological tissue. The depth information is extracted in parallel and allows very high volume acquisition rates. An illumin ...

SPIE2008

Polyharmonic Smoothing Splines for Multi-Dimensional Signals with 1 ⁄ $ ||ω|| ^{ \tau } $ -Like Spectra

Michaël Unser, Dimitri Nestor Alice Van De Ville

Motivated by the fractal-like behavior of natural images, we propose a new smoothing technique that uses a regularization functional which is a fractional iterate of the Laplacian. This type of functional has previously been introduced by Duchon in the con ...

IEEE2004

Non-Linear Fresnelet Approximation for Interference Term Suppression in Digital Holography

Michaël Unser, Thierry Blu

We present a zero-order and twin image elimination algorithm for digital Fresnel holograms that were acquired in an off-axis geometry. These interference terms arise when the digital hologram is reconstructed and corrupt the result. Our algorithm is based ...

SPIE2003

Moire patterns between aperiodic layers: quantitative analysis and synthesis

Isaac Amidror

Moire effects that occur in the superposition of aperiodic layers such as random dot screens are known as Glass patterns. Unlike classical moiré effects between periodic layers, which are periodically repeated throughout the superposition, a Glass p ...

Opt. Soc. America2003

Open loop and closed loop spectral frequency active filtering

Alfred Rufer

This paper proposes two frequency based methods for parallel active filtering of current harmonics in utility grids. Active filter (AF) reference prediction and AF current control are the two key-points to obtain high performances. This paper deals with th ...

2002

Sampling of Periodic Signals: A Quantitative Error Analysis

Michaël Unser, Thierry Blu, Mathews Jacob

We present an exact expression for the

L _{ 2 }

error that occurs when one approximates a periodic signal in a basis of shifted and scaled versions of a generating function. This formulation is applicable to a wide variety of linear approximation schem ...

IEEE2002

Correcting for non-periodic behaviour in perturbative experiments: application to heat pulse propagation and modulated gas-puff experiments

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Multiple harmonic sound sources separation in the under-determined case based on both goniometric and beamforming approaches

Compensating Printer Modulation Transfer Function in Spatial and Color Adaptive Rendering Workflows

Extended focus optical coherence microscopy and fluorescence lifetime imaging

Study of the solar anisotropy of cosmic ray primaries of about 200 GeV energy with the L3+C muon detector

Extended focus Fourier domain optical coherence microscopy and fluorescence lifetime imaging

Polyharmonic Smoothing Splines for Multi-Dimensional Signals with 1 ⁄ $ ||ω|| ^{ \tau } $ -Like Spectra

Non-Linear Fresnelet Approximation for Interference Term Suppression in Digital Holography

Moire patterns between aperiodic layers: quantitative analysis and synthesis

Open loop and closed loop spectral frequency active filtering

Sampling of Periodic Signals: A Quantitative Error Analysis

Non-Linear Fresnelet Approximation for Interference Term Suppression in Digital Holography

Sampling of Periodic Signals: A Quantitative Error Analysis

Multiple harmonic sound sources separation in the under-determined case based on both goniometric and beamforming approaches

Extended focus optical coherence microscopy and fluorescence lifetime imaging

Polyharmonic Smoothing Splines for Multi-Dimensional Signals with 1 ⁄ $ ||ω|| ^{ \tau } $ -Like Spectra

Extended focus Fourier domain optical coherence microscopy and fluorescence lifetime imaging

Moire patterns between aperiodic layers: quantitative analysis and synthesis

Open loop and closed loop spectral frequency active filtering

Compensating Printer Modulation Transfer Function in Spatial and Color Adaptive Rendering Workflows

Study of the solar anisotropy of cosmic ray primaries of about 200 GeV energy with the L3+C muon detector