Baptiste Brument

I am a postdoctoral researcher at IRIT/CNRS in Toulouse, France, working on the OPEN-DOPAMIn project, funded by CNRS Innovation, which aims to develop and promote open-source photogrammetry through AliceVision/Meshroom. I completed my PhD at IRIT on 3D reconstruction from optical images, where I worked on the MVPS problem and neural rendering techniques under the supervision of Lilian Calvet and Jean-Denis Durou.

Email  /  Scholar  /  Github  /  CV (EN)  /  CV (FR)  /  LinkedIn

News

04-2026 Our paper "Multi-view Shape-from-shading: A Tour" has been accepted to CAMC.
03-2026 I will be reviewing for NeurIPS 2026.
11-2025 I gave a talk at JC3DHN 2025 in Marseille on our cultural heritage reconstruction work.
11-2025 I will be reviewing for CVPR 2026.
10-2025 Our RNb-NeuS extension has been accepted to IJCV.
10-2025 I defended my PhD thesis at IRIT, Université de Toulouse.
06-2025 Our RNb-NeuS extension preprint is on arXiv.
01-2025 Our paper on cultural heritage 3D reconstruction is out in JCH.

More

Research

2026

Multi-view Shape-from-shading: A Tour
Yvain Quéau, Silvia Tozza, Baptiste Brument, Nathan Buskulic, Jean Mélou, Lilian Calvet, Jalal Fadili, Jean-Denis Durou
Communications in Applied Mathematics and Computation (CAMC), 2026 (Accepted)
BibTeX

A survey revisiting multi-view shape-from-shading, providing intuitive evidence for uniqueness of solutions based on epipolar geometry, and presenting SfS-NeuS, an effective neural implicit surface method that outperforms state-of-the-art 3D reconstruction approaches on real-world examples.

2025

Multi-view Surface Reconstruction Using Normal and Reflectance Cues
Robin Bruneau*, Baptiste Brument*, Yvain Quéau, Jean Mélou, François Bernard Lauze, Jean-Denis Durou, Lilian Calvet
International Journal of Computer Vision (IJCV), 2025
Project page / arXiv / IJCV / GitHub / BibTeX

An extended framework that incorporates multi-view normal and reflectance maps into radiance-based surface reconstruction, achieving state-of-the-art performance on MVPS benchmark datasets with improved fine-grained detail reconstruction.

Acquiring Submillimeter-Accurate Multi-Task Vision Datasets for Computer-Assisted Orthopedic Surgery
Emma Most, Jonas Hein, Frédéric Giraud, Nicola Cavalcanti, Lukas Zingg, Baptiste Brument, Nino Louman, Fabio Carillo, Philipp Fürnstahl, Lilian Calvet
IPCAI, 2025
arXiv / BibTeX

A comprehensive approach for acquiring submillimeter-accurate multi-task vision datasets for computer-assisted orthopedic surgery applications.

Combining geometric and photometric 3D reconstruction techniques for cultural heritage
Antoine Laurent, Benjamin Coupry, Baptiste Brument, Jean Mélou, Yvain Quéau, Carole Fritz, Jean-Denis Durou
Journal of Cultural Heritage, 2025
Paper / BibTeX

A comprehensive comparison of photogrammetry and photometric 3D reconstruction techniques for archaeological features, proposing a promising new method that combines both families in a multi-view, multi-lighting context.

Assessing the Quality of 3D Reconstruction in the Absence of Ground Truth: Application to a Multimodal Archaeological Dataset
Benjamin Coupry, Baptiste Brument, Antoine Laurent, Jean Mélou, Yvain Quéau, Jean-Denis Durou
WACV, 2025
CVF / BibTeX

A methodology to evaluate 3D reconstruction quality without ground truth reference, applied to archaeological artifacts captured using multiple imaging techniques.

2024

Stéréophotométrie avec estimation locale de l'éclairage - Application à la reconstruction 3D du patrimoine archéologique
Benjamin Coupry, Jean Mélou, Antoine Laurent, Baptiste Brument, Pierre Gurdjos, Yvain Quéau, Jean-Denis Durou
RFIAP, 2024
HAL / BibTeX

Combinaison de photogrammétrie multi-vues et stéréophotométrie pour obtenir des reconstructions 3D à la fois précises et détaillées en estimant l'éclairage local.

RNb-NeuS: Reflectance and Normal-based Multi-View 3D reconstruction
Baptiste Brument*, Robin Bruneau*, Yvain Quéau, Jean Mélou, François Bernard Lauze, Jean-Denis Durou, Lilian Calvet
CVPR, 2024
Project page / CVF / arXiv / GitHub / BibTeX

A versatile paradigm for integrating multi-view reflectance and normal maps acquired through photometric stereo.

Multi-view stereo of an object immersed in a refractive medium
Robin Bruneau, Baptiste Brument, Lilian Calvet, Matthew Cassidy, Jean Mélou, Yvain Quéau, Jean-Denis Durou, François Bernard Lauze
JEI, 2024
HAL / SPIE / BibTeX

An extended multi-view stereo technique to reconstruct objects within a transparent, refractive medium by modeling the refractive interface's geometry and solving it using a discrete method validated on synthetic and real data.

2023

A shape-from-silhouette method for 3D reconstruction of a convex polyhedron
Baptiste Brument, Lilian Calvet, Robin Bruneau, Jean Mélou, Simone Gasparini, Yvain Quéau, François Bernard Lauze, Jean-Denis Durou
QCAV, 2023
HAL / SPIE / BibTeX

A pipeline to recover precisely the geometry of a convex polyhedral object from multiple views under circular motion.

Multi-view Normal Estimation -- Application to Slanted Plane-Sweeping
Lilian Calvet, Nicolas Maignan, Baptiste Brument, Silvia Tozza, Jean-Denis Durou, Yvain Quéau
SSVM, 2023
HAL / Springer / BibTeX

The paper presents a method to estimate 3D surface normals from two views with known camera poses, enhancing inter-image homography and improving photo-consistency in the "plane-sweeping" method,

2021

Reconstruction 3D d'un polyèdre convexe à partir de ses silhouettes
Baptiste Brument, Lilian Calvet, Jean Mélou, Jean-Denis Durou
ORASIS, 2021
HAL / BibTeX

Reconstruction 3D d'un objet immergé dans un milieu réfringent, en utilisant un dioptre assimilé à un polyèdre convexe placé sur une table tournante, avec l'estimation de sa géométrie à partir des silhouettes capturées par une caméra statique.

* Equal contribution

Thesis

De l'utilité des modèles explicites pour la reconstruction 3D photographique
Baptiste Brument
PhD thesis, Université de Toulouse, 2025
NNT : 2025TLSES166

Supervised by Lilian Calvet and Jean-Denis Durou at IRIT.

Projects

Open-source tools and plugins developed as part of the OPEN-DOPAMIn project at IRIT/CNRS, extending Meshroom's 3D reconstruction pipeline with photometric stereo and neural rendering capabilities.

Meshroom Plugins

🔌 mrOpenRNb
Neural surface reconstruction from multi-view normal and reflectance maps
GitHub / Original method

Meshroom plugin implementing the open-source Open-RNb method for 3D surface reconstruction. Runs a two-phase albedo scaling pipeline and outputs reconstructed OBJ meshes in world coordinates from multi-view photometric stereo inputs.

🔌 mrSDMUniPS
Universal photometric stereo via scalable diffusion models
GitHub / Original method

Meshroom plugin integrating SDM-UniPS, a universal photometric stereo method that estimates surface normal maps, albedo, roughness, and metallic parameter maps from multi-light image sets.

🔌 mrLINOUniPS
Diffusion-prior photometric stereo for surface normal estimation
GitHub / Original method

Meshroom plugin for LINO-UniPS, a photometric stereo method leveraging diffusion model priors to estimate surface normals from multi-lighting images. Supports arbitrary numbers of input images with GPU acceleration.

🔌 mrUniMSPS
Universal multi-scale photometric stereo
GitHub / Original method

Meshroom plugin for Uni-MS-PS, a universal photometric stereo method using a multi-scale encoder-decoder transformer architecture for high-resolution surface normal estimation under unknown lighting.

📚 mrHelloWorld
Tutorial series for Meshroom plugin development
GitHub

A hands-on tutorial with 7 progressively complex examples — from a minimal node to SfMData manipulation with pyalicevision and ML inference (DeepLabV3 semantic segmentation). Serves as the learning resource for Meshroom plugin development.

Tools & Resources

MesoNet — Juliet Cluster
GPU computing for 3D reconstruction and deep learning

Computation for this work was performed using HPC resources from the Juliet cluster operated by MesoNet.


This website is inspired from Jon Barron's. Last updated May 2026.