Publications

Physics

How Shock ignition can help to overcome the negative effects of hot electrons in direct-drive high-gain inertial confinement fusion

Hot electrons produced by parametric instabilities can negatively affect the thermonuclear gain of a direct-drive inertial confinement fusion capsule. A Monte Carlo transport is coupled to the hydrodynamics MULTI-IFE code in order to study the hot…

Mauro Temporal, Benoit Canaud, Rafael Ramis

Journal of Plasma Physics - 2024

Mathematics

Dehazing with Dark Channel Prior: Analysis and Implementation

In outdoor scenes, atmospheric absortion and scattering attenuate the radiance received by the camera and may produce haze. In 2009 He et al. proposed a simple but effective dehazing algorithm based on a hypothesis called the 'dark channel prior' …

Jose-Luis Lisani, Charles Hessel

Image Processing On Line - 2024

Computer Science

Image Forgery Detection Based on Noise Inspection: Analysis and Refinement of the Noisesniffer Method

Images undergo a complex processing chain from the moment light reaches the camera's sensor until the final digital image is delivered. Each of its operations leaves traces on the noise model which enable forgery detection through noise analysis. In…

Marina Gardella, Pablo Musé, Miguel Colom, Jean-Michel Morel

Image Processing On Line - 2024

Computer Science

Comparing Interactive Image Segmentation Models under Different Clicking Procedures

Interactive image segmentation (IIS) methods are usually evaluated in terms of segmentation performance vs. number of clicks (NoC). However, the automatic evaluation depends on a clicking procedure and its relation to the procedure used for training…

Franco Marchesoni-Acland

Image Processing On Line - 2024

Mathematics

A Review of t-SNE

Sangwon Jung, Tristan Dagobert, Jean-Michel Morel, Gabriele Facciolo

Image Processing On Line - 2024

Oceanography

Observations of Shoaling and Breaking Waves in Shallow Water With Different Coherent X-Band Radars

The study analyzes the microwave imaging of shoaling nearshore surface gravity waves during the process of steepening and breaking over two beaches for a wide range of environmental conditions. Data are sourced from two coherent X-band radars,…

Susanne Støle-Hentschel, Patricio A Catalán, Michael Streßer, Jochen Horstmann, Frédéric Dias

IEEE Transactions on Geoscience and Remote Sensing - 2024

Environmental Sciences

Is Intersubjectivity Proven? A Reply to Khrennikov and to QBists

In two recent papers Khrennikov uses what he calls Ozawa’s intersubjectivity theorem to claim that intersubjectivity is necessarily verified in quantum mechanics and to criticize QBism and more generally all interpretations that are perspectival. In…

Hervé Zwirn

International Journal of Theoretical Physics - 2024

Environmental Engineering

Ocean Wave Directional Distribution from GPS Buoy Observations off the West Coast of Ireland: Assessment of a Wavelet-Based Method

Knowledge of the directional distribution of a wave field is crucial for a better understanding of complex air-sea interactions. However, the dynamic and unpredictable nature of ocean waves, combined with the limitations of existing measurement…

Daniel Peláez-Zapata, Vikram Pakrashi, Frédéric Dias

Journal of Atmospheric and Oceanic Technology - 2024

Mathematics

Topological data analysis for unsupervised anomaly detection in time series

In this article, we propose a new algorithm for unsupervised anomaly detection in univariate time series, based on topological data analysis. It relies on delay embeddings and on the extraction of persistent cycles from the 1-dimensional persistent…

Alexandre Bois, Brian Tervil, Laurent Oudre

32nd European Signal Processing Conference (EUSIPCO) - 2024

Mathematics

Accelerating NeRF with the Visual Hull

Neural rendering methods for learning the appearance and geometry of 3D scenes have gained tremendous popularity since 2020. In this field, NeRF or Neural Radiance Fields is the bestknown methodology. Given a collection of multi-view images and…

Roger Marí

Image Processing On Line - 2024