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Laboratoire de topométrie
LaboratoirePublications associées (432)
A Large-Scale Characterization of How Readers Browse Wikipedia
Robert West, Tiziano Piccardi, Akhil Arora
Despite the importance and pervasiveness of Wikipedia as one of the largest platforms for open knowledge, surprisingly little is known about how people navigate its content when seeking information. To bridge this gap, we present the first systematic large ...
ASSOC COMPUTING MACHINERY2023Wind Tunnel Characterization of a Delta-Wing UAV for - Model-Based Navigation
This paper presents an experimental procedure for aerodynamic characterization of a delta-wing UAV for model-based navigation applications. We report the design of experiments, aimed to maximize aerodynamic coefficients observability while meeting time con ...
EUCASS2023Reliable strategies for implementing model-based navigation on fixed-wing drones
Jan Skaloud, Gabriel François Laupré, Lucas Pirlet
A relatively novel approach of autonomous navigation employing platform dynamics as the primary process model raises new implementational challenges. These are related to: (i) potential numerical instabilities during longer flights; (ii) the quality of mod ...
2023Automatic Body Segment and Side Recognition of an Inertial Measurement Unit Sensor during Gait
Kamiar Aminian, Xavier Crevoisier, Robin Martin
Inertial measurement unit (IMU) sensors are widely used for motion analysis in sports and rehabilitation. The attachment of IMU sensors to predefined body segments and sides (left/right) is complex, time-consuming, and error-prone. Methods for solving the ...
MDPI2023Impact of Topography on Rural Cycling Patterns: Case Study of Bugesera District, Rwanda
Jérôme Chenal, Akuto Akpedze Konou, Baraka Jean-Claude Munyaka, Rim Mrani
Rural mobility in Africa is an under-researched issue. Rural communities have often suffered from reduced mobility that has hampered their access to essential services and facilities such as education, health care, food, and clean water. In many rural comm ...
20231(st) Workshop on Maritime Computer Vision (MaCVi) 2023: Challenge Results
Alexandre Massoud Alahi, Christophe De Vleeschouwer, Siddharth Gupta, Yang Song, Alexandre Bernardino
The 1st Workshop on Maritime Computer Vision (MaCVi) 2023 focused on maritime computer vision for Unmanned Aerial Vehicles (UAV) and Unmanned Surface Vehicle (USV), and organized several subchallenges in this domain: (i) UAV-based Maritime Object Detection ...
IEEE COMPUTER SOC2023GNSS/INS Kalman Filter Integrity Monitoring with Uncertain Time Correlated Error Processes
Safety-critical navigation applications require that estimation errors be reliably quantified and bounded. Over the last decade, significant effort has been put to guarantee a bounded position estimation by using Global Navigation Satellite Systems (GNSS) ...
EPFL2022Optimization and Real-Time Aspects of Aircraft Model-Based Navigation
The Vehicle Dynamic Model (VDM) based navigation of fixed-wing drones determines the airborne trajectory in conjunction with Inertial Measurement Unit (IMU) sensors. Without Global Navigation Satellite Systems (GNSS) signals, this method estimates navigati ...
EPFL2022On the benefit of concurrent adjustment of active and passive optical sensors with GNSS & raw inertial data
Jan Skaloud, Davide Antonio Cucci, Kyriaki Mouzakidou
In airborne laser scanning a high-frequency trajectory solution is typically determined from inertial sensors and employed to directly geo-reference the acquired laser points. When low-cost MEMS inertial sensors are used, such as in lightweight unmanned ae ...
2022Wikipedia Reader Navigation: When Synthetic Data Is Enough
Robert West, Tiziano Piccardi, Akhil Arora, Alberto Garcia Duran
Every day millions of people read Wikipedia. When navigating the vast space of available topics using hyperlinks, readers describe trajectories on the article network. Understanding these navigation patterns is crucial to better serve readers' needs and ad ...
ASSOC COMPUTING MACHINERY2022