Search Results for author: Rémi Giraud

Found 16 papers, 1 papers with code

Are Semi-Dense Detector-Free Methods Good at Matching Local Features?

no code implementations13 Feb 2024 Matthieu Vilain, Rémi Giraud, Hugo Germain, Guillaume Bourmaud

We then propose to limit the computation of the matching accuracy to textured regions, and show that in this case SAM often surpasses SDF methods.

Homography Estimation Pose Estimation

Influence of Color Spaces for Deep Learning Image Colorization

no code implementations6 Apr 2022 Coloma Ballester, Aurélie Bugeau, Hernan Carrillo, Michaël Clément, Rémi Giraud, Lara Raad, Patricia Vitoria

In this chapter, we aim to study their influence on the results obtained by training a deep neural network, to answer the question: "Is it crucial to correctly choose the right color space in deep-learning based colorization?".

Colorization Image Colorization

Analysis of Different Losses for Deep Learning Image Colorization

no code implementations6 Apr 2022 Coloma Ballester, Aurélie Bugeau, Hernan Carrillo, Michaël Clément, Rémi Giraud, Lara Raad, Patricia Vitoria

While learning to automatically colorize an image, one can define well-suited objective functions related to the desired color output.

Colorization Image Colorization

Patch-based field-of-view matching in multi-modal images for electroporation-based ablations

no code implementations9 Nov 2020 Luc Lafitte, Rémi Giraud, Cornel Zachiu, Mario Ries, Olivier Sutter, Antoine Petit, Olivier Seror, Clair Poignard, Baudouin Denis de Senneville

This can be achieved by the means of multi-modal deformable image registration (DIR), demonstrated to be capable of estimating dense and elastic deformations between images acquired by multiple imaging devices.

Anatomy Computed Tomography (CT) +1

Generalized Shortest Path-based Superpixels for Accurate Segmentation of Spherical Images

1 code implementation15 Apr 2020 Rémi Giraud, Rodrigo Borba Pinheiro, Yannick Berthoumieu

Most of existing superpixel methods are designed to segment standard planar images as pre-processing for computer vision pipelines.

Clustering Superpixels

Texture Superpixel Clustering from Patch-based Nearest Neighbor Matching

no code implementations9 Mar 2020 Rémi Giraud, Yannick Berthoumieu

In this paper, we propose a new Nearest Neighbor-based Superpixel Clustering (NNSC) method to generate texture-aware superpixels in a limited computational time compared to previous approaches.

Clustering Computational Efficiency +1

Multi-Scale Superpatch Matching using Dual Superpixel Descriptors

no code implementations9 Mar 2020 Rémi Giraud, Merlin Boyer, Michaël Clément

A fast multi-scale non-local matching framework is also introduced for the search of similar descriptors at different resolution levels in an image dataset.

Dimensionality Reduction Superpixels

AssemblyNet: A Novel Deep Decision-Making Process for Whole Brain MRI Segmentation

no code implementations5 Jun 2019 Pierrick Coupé, Boris Mansencal, Michaël Clément, Rémi Giraud, Baudouin Denis de Senneville, Vinh-Thong Ta, Vincent Lepetit, José V. Manjon

Whole brain segmentation using deep learning (DL) is a very challenging task since the number of anatomical labels is very high compared to the number of available training images.

Brain Segmentation Decision Making +1

Robust Shape Regularity Criteria for Superpixel Evaluation

no code implementations17 Mar 2019 Rémi Giraud, Vinh-Thong Ta, Nicolas Papadakis

Regular decompositions are necessary for most superpixel-based object recognition or tracking applications.

Object Recognition

Evaluation Framework of Superpixel Methods with a Global Regularity Measure

no code implementations17 Mar 2019 Rémi Giraud, Vinh-Thong Ta, Nicolas Papadakis

To measure the regularity aspect, we propose a new global regularity measure (GR), which addresses the non-robustness of state-of-the-art metrics.

Robust superpixels using color and contour features along linear path

no code implementations17 Mar 2019 Rémi Giraud, Vinh-Thong Ta, Nicolas Papadakis

During the decomposition, we propose to consider color features along the linear path between the pixel and the corresponding superpixel barycenter.

Superpixels

SCALP: Superpixels with Contour Adherence using Linear Path

no code implementations17 Mar 2019 Rémi Giraud, Vinh-Thong Ta, Nicolas Papadakis

In this paper, we propose a fast method to compute Superpixels with Contour Adherence using Linear Path (SCALP) in an iterative clustering framework.

Clustering Contour Detection +1

Superpixel-based Color Transfer

no code implementations14 Mar 2019 Rémi Giraud, Vinh-Thong Ta, Nicolas Papadakis

In this work, we propose a fast superpixel-based color transfer method (SCT) between two images.

Superpixels

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