Consulter le flux RSS

Publications

Affichage des publications 11 à 20 sur 1022 au total

Signal and Image processing

The Analytical Validity of Stride Detection and Gait Parameters Reconstruction Using the Ankle-Mounted Inertial Measurement Unit Syde®

The increasing use of inertial measurement units (IMU) in biomedical sciences brings new possibilities for clinical research. The aim of this paper is to demonstrate the accuracy of the IMU-based wearable Syde® device, which allows day-long and…

Mona Michaud, Alexandre Guérin, Marguerite Dejean de la Bâtie, Léopold Bancel, Laurent Oudre, Alexis Tricot

Sensors -

Mathematics

Persistence-based clustering with outlier-removing filtration

This article describes a non-parametric clustering algorithm with an outlier removal step. Our method is based on tools from topological data analysis: we define a new filtration on metric spaces which is a variant of the Vietoris–Rips filtration…

Alexandre Bois, Brian Tervil, Laurent Oudre

Frontiers in Applied Mathematics and Statistics -

Human health and pathology

Assessment of the depth of anesthesia with hidden Markov model based on cardiopulmonary variables

Background Precise monitoring of the Depth of Anesthesia (DoA) is essential to prevent intra-operative awareness (in case of underdosage) or increased post-operative morbi-mortality (in case of overdosage). The recording of a high- frequency…

Gaël de Rocquigny, Clément Dubost, Pierre Humbert, Laurent Oudre, Christophe Labourdette, Nicolas Vayatis, Jean-Pierre Tourtier, Pierre-Paul Vidal

Frontiers in Anesthesiology -

Signal and Image processing

Automatic gait events detection with inertial measurement units: healthy subjects and moderate to severe impaired patients

Abstract Background Recently, the use of inertial measurement units (IMUs) in quantitative gait analysis has been widely developed in clinical practice. Numerous methods have been developed for the automatic detection of gait events (GEs). While…

Cyril Voisard, Nicolas de L’escalopier, Damien Ricard, Laurent Oudre

Journal of NeuroEngineering and Rehabilitation -

Computer Vision and Pattern Recognition

MaskSim: Detection of synthetic images by masked spectrum similarity analysis

Synthetic image generation methods have recently revolutionized the way in which visual content is created. This opens up creative opportunities but also presents challenges in preventing misinformation and crime. However, these methods leave traces…

Yanhao LI, Quentin Bammey, Marina Gardella, Tina Nikoukhah, Jean-Michel Morel, Miguel Colom, Rafael Grompone von Gioi

2024 IEEE/CVF Conference on Computer Vision and Pattern Recognition Workshops (CVPRW) -

Mathematics

Iteratively Reweighted Least Squares for Phase Unwrapping

The 2D phase unwrapping problem seeks to recover a phase image from its observation modulo 2$\pi$, and is a crucial step in a variety of imaging applications. In particular, it is one of the most time-consuming steps in the interferometric synthetic…

Benjamin Dubois-Taine, Roland Akiki, Alexandre d'Aspremont

Optimization and Control

Constrained Approximate Optimal Transport Maps

We investigate finding a map g within a function class G that minimises an Optimal Transport (OT) cost between a target measure ν and the image by g of a source measure µ. This is relevant when an OT map from µ to ν does not exist or does not…

Eloi Tanguy, Agnès Desolneux, Julie Delon