Concept

Bathymétrie

Publications associées (72)

Robot-centric elevation mapping with uncertainty estimates

This paper addresses the local terrain mapping process for an autonomous robot. Building upon an onboard range measurement sensor and an existing robot pose estimation, we formulate a novel elevation mapping method from a robot-centric perspective. This fo ...

2014

Morphological analysis of the upper reaches of the Kukuy Canyon derived from shallow bathymetry

Yosef Akhtman, Nicolas Le Dantec

We present preliminary results on the morphology of the upper reaches of the Kukuy Canyon and Selenga shelf in front of Proval Bay (Lake Baikal), derived from newly acquired, high-resolution bathymetry. Numerous and varied erosional and transport features ...

2014

Satellite remote sensing of Antarctic sea-ice roughness using scatterometer data

Katherine Colby Leonard, Ernesto Trujillo Gomez

While sea-ice concentration is frequently observed from polar orbiting passive microwave satellite instruments, equivalent large-scale information on sea-ice sub-metre-scale roughness is currently unknown. Roughness on this scale is closely related to sea- ...

2014

Seasonal small-scale spatial variability in alpine snowfall and snow accumulation

Michael Lehning, Alexis Berne, Marc Schneebeli Zeugin, Danny Eddy Scipion Castillo

[1] In mountainous regions, snow accumulation on the ground is crucial for mountain hydrology and water resources. The present study investigates the link between the spatial variability in snowfall and in snow accumulation in the Swiss Alps. A mobile pola ...

American Geophysical Union2013

Automated Assessment of Digital Terrain Models Derived From Airborne Laser Scanning

Jan Skaloud, Philipp Schär

This paper presents the derivation of surface-related quality indicators describing the confidence-metrics of the final geo-products de- rived from airborne laser scanning (ALS). We first discuss the number of factors influencing the qual- ity of the digit ...

2012

Cell-based Automatic Deformation Computation by Analyzing Terrestrial LIDAR Point Clouds

Pierre-Yves Gilliéron, Bertrand Merminod, Jing Wu

This paper presents a cell-based approach for computing the deformation of a monitored object by analyzing point cloud data from terrestrial lidar. This approach can automatically generate an informative deformation description (called "deformation map") w ...

2012

Cell-Based Deformation Monitoring via 3D Point Clouds

Jing Wu

Deformation is one of the most important phenomena in environmental science and engineering. Deformation of artificial and natural objects happens worldwide, such as structural deformation, landslide, subsidence, erosion, and rockfall. Monitoring and asses ...

EPFL2012

Optical-microphysical properties of Saharan dust aerosols and composition relationship using a multi-wavelength Raman lidar, in situ sensors and modelling: A case study analysis

Athanasios Nenes

A strong Saharan dust event that occurred over the city of Athens, Greece (37.9° N, 23.6° E) between 27 March and 3 April 2009 was followed by a synergy of three instruments: a 6-wavelength Raman lidar, a CIMEL sun-sky radiometer and the MODIS sensor. The ...

2012

Studies of the spatial variability of alpine snowfall using an X-band polarimetric radar

Michael Lehning, Alexis Berne, Danny Eddy Scipion Castillo

A mobile polarimetric X-band radar (MXPol) was deployed in Davos, Switzerland in collaboration with SLF (WSL - Institute for Snow and Avalanche Research). MXPol was installed in the beginning of October 2009 and collected valuable and continuous informatio ...

2012

Optimiser la performance de calcul pour la cartographie en temps réel avec un Laser Scanner aéroporté

Jan Skaloud, Bertrand Merminod, Philipp Schär

Cet article est essentiellement la traduction de: Skaloud J. & Schaer P.: Optimizing Computational Performance for Real-Time Mapping with Airborne Laser Scanning, présenté lors de: Technical Commission I Symposium, WG I/5 Commission I, Calgary, June 2010 e ...

2011

Graph Chatbot

Chattez avec Graph Search

Posez n’importe quelle question sur les cours, conférences, exercices, recherches, actualités, etc. de l’EPFL ou essayez les exemples de questions ci-dessous.

AVERTISSEMENT : Le chatbot Graph n'est pas programmé pour fournir des réponses explicites ou catégoriques à vos questions. Il transforme plutôt vos questions en demandes API qui sont distribuées aux différents services informatiques officiellement administrés par l'EPFL. Son but est uniquement de collecter et de recommander des références pertinentes à des contenus que vous pouvez explorer pour vous aider à répondre à vos questions.

Connectez-vous pour utiliser Chat avec Graph Search