Concept

Geographical distance

Related publications (45)

Parametric B-Spline Snakes on Distance Maps—Application to Segmentation of Histology Images

Michaël Unser, Philippe Thévenaz, François Aguet, Chandra Sekhar Seelamantula

We construct parametric active contours (snakes) for outlining cells in histology images. These snakes are defined in terms of cubic B-spline basis functions. We use a steerable ridge detector for obtaining a reliable map of the cell boundaries. Using the ...

EURASIP2008

On the estimation of geodesic paths on sampled manifolds after random projections

Pierre Vandergheynst, Matteo Sorci

In this paper, we focus on the use of random projections as a dimensionality reduction tool for sampled manifolds in high-dimensional Euclidean spaces. We show that geodesic paths approximations from nearest neighbors Euclidean distances are well-preserved ...

2008

Least-Cost Opportunistic Routing

Martin Vetterli, Matthias Grossglauser, Henri Julien Dubois-Ferrière

In opportunistic routing, each node maintains a group of candidate relays to reach a particular destination, and transmits packets to any node in this group. If a single candidate relay receives the packet, it becomes the effective relay to forward the pac ...

2007

Design and optimization of district energy systems

François Maréchal, Daniel Favrat, Céline Weber

The reduction of CO2 emissions is a challenge for the coming decade, especially with the implementation of the Kyoto protocol. Since energy services (mainly heating and cooling of buildings) contribute to over 40% of the final energy consumption in a count ...

2007

Least-Cost Opportunistic Routing

Martin Vetterli, Matthias Grossglauser, Henri Julien Dubois-Ferrière

In opportunistic routing, each node maintains a group of candidate next-hops to reach a particular destination, and transmits packets to any node in this group. The choice of candidate next-hops at each node is a key question that is central to the perform ...

2007

METAROUTE - Gestion de la qualité des données du repérage spatial et de la géométrie des axes routiers

Pierre-Yves Gilliéron

Le système d’information de la route, anciennement appelé banque de données routières, repose principalement sur un système de repérage linéaire : le système de repérage spatial de base (SRB). Alors que la plupart des systèmes d’information géographique (S ...

2006

Distance preserving flattening of surface sections

Roger Hersch, Laurent Saroul

Curved cross-sections extracted from medical volume images are useful for analyzing nonplanar anatomic structures such as the aorta arch or the pelvis. For visualization and for performing distance measurements, extracted surface sections need to be adequa ...

2006

Locating Mobile Nodes with EASE: Learning Efficient Routes from Encounter Histories Alone

Martin Vetterli, Matthias Grossglauser

Routing in large-scale mobile ad hoc networks is challenging because all the nodes are potentially moving. Geographic routing can partially alleviate this problem, as nodes can make local routing decisions based solely on the destinations' geographic coord ...

2006

Lifetime of an emitting dipole near various types of interfaces including magnetic and negative refractive materials

Olivier Martin

A classical electromagnetic calculation of the lifetime of an emitting electric dipole near a material slab is presented. The lifetime is deduced from the imaginary part of the electric field Green's tensor associated with the stratified medium. The method ...

2004

Locating Nodes with EASE: Mobility Diffusion of Last Encounters in Ad Hoc Networks

Martin Vetterli, Matthias Grossglauser

2002

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