Search Results for author: Thibaud Ehret

Found 18 papers, 4 papers with code

On the Convergence of PatchMatch and Its Variants

no code implementations CVPR 2018 Thibaud Ehret, Pablo Arias

We also derive more specific bounds for two of these particular cases: the original PatchMatch and Coherency Sensitive Hashing.

Image Anomalies: a Review and Synthesis of Detection Methods

no code implementations7 Aug 2018 Thibaud Ehret, Axel Davy, Jean-Michel Morel, Mauricio Delbracio

We review the broad variety of methods that have been proposed for anomaly detection in images.

Anomaly Detection

Model-blind Video Denoising Via Frame-to-frame Training

1 code implementation CVPR 2019 Thibaud Ehret, Axel Davy, Jean-Michel Morel, Gabriele Facciolo, Pablo Arias

Modeling the processing chain that has produced a video is a difficult reverse engineering task, even when the camera is available.

Denoising Video Denoising

Non-Local Video Denoising by CNN

2 code implementations30 Nov 2018 Axel Davy, Thibaud Ehret, Jean-Michel Morel, Pablo Arias, Gabriele Facciolo

To the best of our knowledge, this is the first successful application of a CNN to video denoising.

Image Denoising Video Denoising

Reducing Anomaly Detection in Images to Detection in Noise

no code implementations25 Apr 2019 Axel Davy, Thibaud Ehret, Jean-Michel Morel, Mauricio Delbracio

Anomaly detectors address the difficult problem of detecting automatically exceptions in an arbitrary background image.

Anomaly Detection

Joint Demosaicking and Denoising by Fine-Tuning of Bursts of Raw Images

1 code implementation ICCV 2019 Thibaud Ehret, Axel Davy, Pablo Arias, Gabriele Facciolo

Due to the unavailability of ground truth data these networks cannot be currently trained using real RAW images.

Demosaicking Denoising

Robust copy-move forgery detection by false alarms control

no code implementations3 Jun 2019 Thibaud Ehret

Detecting reliably copy-move forgeries is difficult because images do contain similar objects.

Implementation of the VBM3D Video Denoising Method and Some Variants

1 code implementation6 Jan 2020 Thibaud Ehret, Pablo Arias

VBM3D is an extension to video of the well known image denoising algorithm BM3D, which takes advantage of the sparse representation of stacks of similar patches in a transform domain.

Image Denoising Optical Flow Estimation +1

Sat-NeRF: Learning Multi-View Satellite Photogrammetry With Transient Objects and Shadow Modeling Using RPC Cameras

no code implementations16 Mar 2022 Roger Marí, Gabriele Facciolo, Thibaud Ehret

We introduce the Satellite Neural Radiance Field (Sat-NeRF), a new end-to-end model for learning multi-view satellite photogrammetry in the wild.

Neural Rendering

Regularization of NeRFs using differential geometry

no code implementations29 Jun 2022 Thibaud Ehret, Roger Marí, Gabriele Facciolo

Neural radiance fields, or NeRF, represent a breakthrough in the field of novel view synthesis and 3D modeling of complex scenes from multi-view image collections.

Novel View Synthesis

Detecting Methane Plumes using PRISMA: Deep Learning Model and Data Augmentation

no code implementations17 Nov 2022 Alexis Groshenry, Clement Giron, Thomas Lauvaux, Alexandre d'Aspremont, Thibaud Ehret

The new generation of hyperspectral imagers, such as PRISMA, has improved significantly our detection capability of methane (CH4) plumes from space at high spatial resolution (30m).

Data Augmentation

Reducing False Alarms in Video Surveillance by Deep Feature Statistical Modeling

no code implementations9 Jul 2023 Xavier Bou, Aitor Artola, Thibaud Ehret, Gabriele Facciolo, Jean-Michel Morel, Rafael Grompone von Gioi

Experimental results reveal that the proposed a-contrario validation is able to largely reduce the number of false alarms at both pixel and object levels.

Change Detection Object

Radar Fields: An Extension of Radiance Fields to SAR

no code implementations20 Dec 2023 Thibaud Ehret, Roger Marí, Dawa Derksen, Nicolas Gasnier, Gabriele Facciolo

Radiance fields have been a major breakthrough in the field of inverse rendering, novel view synthesis and 3D modeling of complex scenes from multi-view image collections.

Inverse Rendering Novel View Synthesis

Portraying the Need for Temporal Data in Flood Detection via Sentinel-1

no code implementations6 Mar 2024 Xavier Bou, Thibaud Ehret, Rafael Grompone von Gioi, Jeremy Anger

Identifying flood affected areas in remote sensing data is a critical problem in earth observation to analyze flood impact and drive responses.

Anomaly Detection Earth Observation +1

Exploring Robust Features for Few-Shot Object Detection in Satellite Imagery

no code implementations8 Mar 2024 Xavier Bou, Gabriele Facciolo, Rafael Grompone von Gioi, Jean-Michel Morel, Thibaud Ehret

Moreover, we study the performance of both visual and image-text features, namely DINOv2 and CLIP, including two CLIP models specifically tailored for remote sensing applications.

Few-Shot Object Detection Object +2

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