Concept

Coupe sagittale

Publications associées (73)

Multiview Face Detection

Sébastien Marcel, Yann Rodriguez, Tiffany Sauquet

In this document, we address the problem of multiview face detection. This work extends the frontal face detection system developed at the IDIAP Research Institute to multiview face detection. The main state-of-the art techniques are reviewed and a novel a ...

IDIAP2005

AV16.3: an Audio-Visual Corpus for Speaker Localization and Tracking

Daniel Gatica-Perez, Jean-Marc Odobez, Guillaume Lathoud

Assessing the quality of a speaker localization or tracking algorithm on a few short examples is difficult, especially when the ground-truth is absent or not well defined. One step towards systematic performance evaluation of such algorithms is to provide ...

2005

Ambulatory gait analysis in Parkinson's Disease: Application of a novel method based on kinematics sensors

Kamiar Aminian, Catherine Dehollain, Arash Salarian

Summary: Using our ambulatory monitoring system, ASUR, 13 Parkinsonian patients were monitored for periods of up to 5 hours while they were free to perform activities at will. Every one hour patients did a UPDRS test as the clinical assessment. During the ...

ESMAC2004

AV16.3: an Audio-Visual Corpus for Speaker Localization and Tracking

Daniel Gatica-Perez, Jean-Marc Odobez, Guillaume Lathoud

IDIAP2004

Ambulatory measurement of gait parameters in Parkinson's disease: Effects of subthalamic stimulation

Kamiar Aminian, Catherine Dehollain, Arash Salarian

Introduction: In this study the effect of subthalamic nucleus neep brain Stimulation (STN-DBS) on the gait parameters of patients with Parkinson's disease (PD) was examined using an ambulatory gait analysis system based on miniature gyroscopes. The aim was ...

2003

Optically sectioned image generating method for microscopy imaging apparatus involves combining measured characteristics of signals from respective positions of conjugate image plane to generate optically sectioned image of specimen

Theo Lasser, François Richard Vuille, Stéphane Bourquin, Jelena Mitic, Karsten Plamann

A method and a microscopy imaging apparatus for generating an optically sectioned image of a specimen are provided. The method comprises the steps of:illuminating the specimen with a modulating, spatially periodic illumination pattern; imaging said specime ...

2003

Head position during various locomotor executions after prolonged microgravity exposure

Grégoire Courtine

Head orientation in the sagittal plane was assessed before and the second and sixth days after a prolonged microgravity exposure (6 months) in 7 astronauts, which were instructed to execute various locomotor movements (stair ascent, jump down and level wal ...

2002

Microstructure of both as-irradiated and deformed 304L stainless steel irradiated with 800 MeV protons

Jie Chen, Yong Dai

A 304L stainless steel water degrader was irradiated with 800 MeV protons at Los Alamos Neutron Science Centre (LANSCE) up to 8.5 dpa at temperatures up to 250 degreesC. Tensile tests showed that hardening and embrittlement were induced in the material. In ...

2001

Storage of 1000 holograms with use of a dual-wavelength method

Demetri Psaltis

We demonstrate the storage of 1000 holograms in a memory architecture that makes use of different wavelengths for recording and readout to reduce the grating decay while retrieving data. Bragg-mismatch problems from the use of two wavelengths are minimized ...

1997

Alignment Sensitivity Of Holographic 3-Dimensional Disks

Demetri Psaltis

We describe the rotational alignment sensitivity of three-dimensional holographic disks. It is shown that the reconstructed image always rotates by the angle by which the disk rotates; however, the center and the radius of rotation change as the recording ...

1995

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