Context
Project presented in editorial form. Additional details may be added in the Markdown body.
Observation stakes
The 90 voussoirs from the collapsed vault showed carving and wear traces difficult to interpret visually, with variable geometries and no known original position.
Mercurio solution
Development of a motorised turntable supporting blocks up to 100 kg, with optimised lighting and multi-view acquisition by three cameras, complemented by a processing and metadata documentation protocol.
Technologies
- photogrammetry
- on-site preprocessing
- MeMOS documentation
- open data archiving
Delivered outcome
A scientifically usable 3D corpus, documented according to a MeMOS logic and disseminated as open data for research and conservation.
We were contacted to work on the Notre-Dame de Paris construction site to digitise the 90 voussoirs from the collapsed vault.
To meet weight, throughput and repeatability constraints, we developed a motorised turntable system capable of supporting blocks up to 100 kg. The device was designed with homogeneous lighting and a three-camera setup to ensure robust capture of surface states and volumes.
Photographs were preprocessed directly on site to secure the production pipeline. In parallel, we structured acquisition documentation according to a MeMOS logic, developed by the MAP laboratory, to enrich and preserve metadata.
All source data (photographs, orientation files and 3D models) was deposited on Huma-Num as open data. The datasets are now accessible via ArcheoGrid.