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Guillaume Bourmaud

10 accepted papers

2025

Alligat0R: Pre-Training through Covisibility Segmentation for Relative Camera Pose Regression

NeurIPS 2025spotlight

Pre-training techniques have greatly advanced computer vision, with CroCo’s cross-view completion approach yielding impressive results in tasks like 3D reconstruction and pose regression. However, cross-view completion is ill-posed in non-covisible regions, limiting its effectiveness. We introduce A…

Cited by 0SourceScholar
2025

Evaluating the Posterior Sampling Ability of Plug&Play Diffusion Methods in Sparse-View CT

ICASSP 2025accepted

Plug&Play (PnP) diffusion models are state-of-the-art methods in computed tomography (CT) reconstruction. Such methods usually consider applications where the sinogram contains a sufficient amount of information for the posterior distribution to be concentrated around a single mode, and consequently…

Cited by 0SourceScholar
2021

Neural Reprojection Error: Merging Feature Learning and Camera Pose Estimation

CVPR 2021poster

Absolute camera pose estimation is usually addressed by sequentially solving two distinct subproblems: First a feature matching problem that seeks to establish putative 2D-3D correspondences, and then a Perspective-n-Point problem that minimizes, w.r.t. the camera pose, the sum of so-called Reprojec…

Cited by 37PDFScholar
2020

S2DNet: Learning Image Features for Accurate Sparse-to-Dense Matching

ECCV 2020poster

Establishing robust and accurate correspondences is a fundamental backbone to many computer vision algorithms. While recent learning-based feature matching methods have shown promising results in providing robust correspondences under challenging conditions, they are often limited in terms of precis…

Cited by 43SourcePDFScholar
2019

Tracking a Cluster of Space Debris in Low Orbit by Filtering on Lie Groups

ICASSP 2019accepted

This paper addresses the problem of tracking a cluster of space debris sufficiently close to each other to be considered as a single ex-tended object. State-of-the-art random-matrix methods estimate the kinematics of the object centroid by assuming that its shape is elliptic and that the observation…

Cited by 0SourceScholar