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Publications associées (82)

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Visual Activity Context For Focus of Attention Estimation in Dynamic Meetings

Jean-Marc Odobez, Silèye Oumar Ba

We address the problem of recognizing, in dynamic meetings in which people do not remain seated all the time, the visual focus of attention (VFOA) of seated people from their head pose and contextual activity cues. We propose a model that comprises the VFO ...

2009

Visual activity context for focus of attention estimation in dynamic meetings

Jean-Marc Odobez, Silèye Oumar Ba

Idiap2009

Energy Management for Indoor Hovering Robots

Dario Floreano, Jean-Christophe Zufferey, James Roberts

Flying has an advantage when compared to ground based locomotion, as it simplifies the task of overcoming obstacles and allows for rapid coverage of an area while also providing a birds-eye-view of the environment. One of the key challenges that has preven ...

2008

Motion, not masking, provides the medium for feature attribution

Michael Herzog

Understanding the dynamics of how separate features combine to form holistic object representations is a central problem in visual cognition. Feature attribution (also known as feature transposition and feature inheritance) refers to the later of two stimu ...

Wiley-Blackwell2008

Analytical calculation of the inertia matrices of convex spheropolyhedra

Lionel Pournin

Spheropolyhedra are bodies obtained as Minkowski sums of polyhedra with spheres. They are simple, yet flexible models of non-spherical particles for granular media simulated with the Distinct Element Method (DEM). We here give an analytical method for the ...

2008

Poisson reduction and the Hamiltonian structure of the Euler-Yang-Mills equations

Tudor Ratiu, François Gay-Balmaz

The problem treated here is to find the Hamiltonian structure for an ideal gauge-charged fluid. Using a Kaluza-Klein point of view, we obtain the non-canonical Poisson bracket and the motion equations by a Poisson reduction involving the automorphism group ...

American Mathematical Society, P.O. Box 6248 Ms. Phoebe Murdock, Providence, Ri 02940 Usa2008

Solids and Supersolids of Three-Body Interacting Polar Molecules on an Optical Lattice

Julien Dorier

We study the physics of cold polar molecules loaded into an optical lattice in the regime of strong three-body interactions, as put forward recently by Buchler et al. [Nature Phys. 3, 726 (2007)]. To this end, quantum Monte Carlo simulations, exact diagona ...

2008

How body position changes visual vertical perception after unilateral vestibular loss

Christophe Lopez

Visual vertical perception, posture and equilibrium are impaired in patients with a unilateral vestibular loss. The present study was designed to investigate whether body position (standing upright, sitting on a chair and lying supine) influences the visua ...

2008

Nano-patterning of solid substrates by adsorbed dendrimers

Ramon Pericet Camara, Michal Borkovec

Weakly charged solid substrates can be nano-patterned in liquid-like order with large and well-defined spacing by adsorbing poly(amido amine) (PAMAM) dendrimers; highly charged substrates lead to lower spacing due to electrostatic three-body attractions be ...

Royal Society of Chemistry2007

Optimized Motion Simplification for Crowd Animation

Junghyun Ahn

Simulating a huge number of articulate figures in a real-time application is one of the challenging research topics in character animation. Several researchers have tried to improve the performance of animation using the image-based technique such as ‘impo ...

Wiley-Blackwell2006