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Publications associées (205)

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Segmenting Multiple Concurrent Speakers Using Microphone Arrays

Guillaume Lathoud, Darren Moore

Speaker turn detection is an important task for many speech processing applications. However, accurate segmentation can be hard to achieve if there are multiple concurrent speakers (overlap), as is typically the case in multi-party conversations. In such c ...

IDIAP2003

Segmenting Multiple Concurrent Speakers Using Microphone Arrays

Guillaume Lathoud, Darren Moore

2003

Video-rate three-dimensional optical coherence tomography

René Salathé, Theo Lasser, Boris Clément Karamata, Markus Laubscher

Most current optical coherence tomography systems provide two-dimensional cross-sectional or en face images. Successive adjacent images have to be acquired to reconstruct three-dimensional objects, which can be time consuming. Here we demonstrate three-dim ...

Optical Society of America2002

Tetrahedral composite finite elements

Jean-François Molinari

We develop and analyse a composite 'CT3D' tetrahedral element consisting of an ensemble of 12 four-node linear tetrahedral elements, coupled to a linear assumed deformation defined over the entire domain of the composite element. The element is designed to ...

2002

High-Quality Isosurface Rendering with Exact Gradient

Michaël Unser, Philippe Thévenaz

We address the task of rendering by ray tracing the isosurface of a high-quality continuous spline model of volumetric discrete and regular data. By expressing the spline model as a sum of nonnegative B-splines, we are able to confine the potential locatio ...

IEEE2001

The visible human slice sequence animation web server

Roger Hersch

Since June 1998, EPFL's Visible Human Slice Server (http://visiblehuman.epfl.ch) allows to extract arbitrarily oriented and positioned slices. More than 300,000 slices are extracted each year. In order to give a 3D view of anatomic structures, a new servic ...

Society of Photo-Optical Instrumentation Engineers2001

Splines and wavelets for image warping and projection

Stefan Horbelt

This thesis investigates advanced signal processing concepts and their application to geometric processing and transformations of images and volumes. In the first part, we discuss the class of transformations that project volume data onto a plane using par ...

EPFL2001

Future space - A new blueprint for business architecture

Jeffrey Huang

Although the Internet is an essential conduit for many business activities, it isn't rendering the physical world any less important, as the failures of many Web merchants demonstrate. People need social and sensual contact. The companies that succeed will ...

2001

Crack Pattern Simulation Based on 3D Surface Cellular Automaton

Stéphane Gobron

This article describes a method for modeling the propagation of cracks on any 3D surface. This method allows almost any type of cracks on any type of triangulated 3D object. Our model’s main advantage is that it proposes a semi-physical solution, making it ...

Springer Verlag2001

Multiresolution Spline-Based 3D/2D Registration of CT Volume and C-Arm Images for Computer-Assisted Surgery

Michaël Unser, Philippe Thévenaz

We propose an algorithm for aligning a preoperative computed tomography (CT) volume and intraoperative C-arm images, with applications in computer-assisted spinal surgery. Our three-dimensional (3D)/two-dimensional (2D) registration algorithm is based on s ...

SPIE2001