Detail capture for RTI analysis

PROJECTS

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Projects carried out with institutions, researchers and heritage stakeholders.

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Institutions, museums, heritage services.

Centre national de la recherche scientifique
Centre des monuments nationaux
Recherche et patrimoine
Établissement public
Ville de Marseille
Musées municipaux
Patrimoine roman
Ministère de la Culture

Projects

Evidence from the field.

Photogrammetric acquisition on the Notre-Dame de Paris construction site

NOTRE-DAME DE PARIS

Digitising the medieval vault keystones

Context: Following the Notre-Dame fire, a documentation campaign of architectural elements was carried out at the request of the public institution and scientific team.
Stakes: Vault stones show tool marks, wear and carving traces that are hard to analyse visually. Variable in size, they had to be documented without knowing their original position.
Solution: Custom photogrammetry device, acquisition protocol and automated processing to digitise quickly around one hundred keystones up to 100 kg.
Outcome: Corpus of scale 3D models
Usable scientific documentation
High-precision digital archiving

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Alcazar block, RTI at the Musée d’Histoire de Marseille

MUSÉE D’HISTOIRE DE MARSEILLE

The Alcazar block: documenting intertwined graffiti

Context: Archaeological block preserved with little visual readability.
Stakes: Inscriptions and marks are superimposed and hard to distinguish.
Solution: RTI orthophotogrammetric mosaic acquisition and interactive exploration.
Outcome: New archaeological reading
Interactive educational support

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RTI survey of an engraved surface, THEIA project

CMN / THEIA PROJECT

Decorated caves and complex surfaces

Context: Digitisation of irregular surfaces (caves, engraved tablets).
Stakes: Complex relief and field constraints.
Solution: Deployment of adapted RTI devices and robust pipeline.
Outcome: Scientifically usable data
Non-invasive documentation
Better understanding of engravings

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Photogrammetry campaign before anastylosis of the arcades, Musée du Cloître de Notre-Dame-en-Vaux

CHÂLONS-EN-CHAMPAGNE CLOISTER

Projection mapping and restitution of cloister colours

Context: At the museum’s request, a projection device on cloister sculptures to restitute their medieval polychromy.
Stakes: Make vanished polychromy visible again and mediate architecture now perceived mainly as bare stone.
Solution: High-definition photogrammetry, translation of scientific hypotheses into projectable content, animations and architectural projection on the anastylosis.
Outcome: Models and textures for the projected show
Animated sequences co-built with the museum
Renewed mediation for visitors

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Aerial view of Saint-Michel de Cuxa abbey

SAINT-MICHEL DE CUXA ABBEY

Digitising and restituting the fragmentary rood screen

Context: Two-phase mission on the rood screen: partially preserved arch then expanded corpus of façade fragments.
Stakes: Precisely document scattered fragments and test assembly hypotheses usable by researchers and physical restitution.
Solution: 3D photogrammetry, restitution graphics, automated processing chain, 3D prints (1:1 and 1:10) and web anastylosis platform.
Outcome: 3D models usable for research
Visualisable placement hypotheses
Direct bridge between digital and physical reproduction

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In situ RTI acquisition in the Pompeii theatre corridor

POMPEII - BRUITS DE COULOIR

Five nights of acquisition for ancient graffiti

Context: In situ campaign in the Pompeii theatre corridor to build homogeneous documentation at very high precision.
Stakes: Read fine incisions and micro-relief on complex walls, with detail level compatible with scientific analysis.
Solution: 15,000 photos in 5 nights, dedicated wall RTI device, 2 gigapixel RTI orthophotos and scientific annotation web platform.
Outcome: Multi-scale reading of the corridor at millimetre detail
Online consultation and annotation of graffiti
Structured corpus for study and dissemination

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Behind the scenes

Behind the scenes.

Atelier, montage d'une acquisition
Préparation lumière
Acquisition photogrammétrique, cloître de Notre-Dame-en-Vaux
Dispositif RTI en action
Observation d'état de surface
Contrôle d'acquisition

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