Virtual Tour \ 3D Modeling
Photogrammetry: from photo to 3D
If the photograph perfectly accounts for surfaces, it remains a two-dimensional representation of reality. How then can we account for the volumes?
Photogrammetry compensates for this lack. This technique is based on stereography which makes it possible to perceive the reliefs. From a series of photographs processed using 3D software, a mathematical model is created. The coordinate of each element is calculated to generate a point cloud. A texture is then applied to create a realistic three-dimensional representation of the object.
This faithful representation of volumes, shapes and textures can then be observed from all angles. This technology can also be used to reproduce objects using a 3D printer.
In order to make the most of the examples offered at the bottom of the page, activate full screen mode.
(page translated by google)
Buste d'Henri Poincaré
Modélisation d'un buste d'Henri Poincaré d'environ 60cm de haut pour l'Université de Lorraine. Photographié sur site, la création de ce modèle 3D à nécessité la prise de 104 images pour sa réalisation.
Sculpture of a buffet by Eugène Vallin
This buffet is a piece of furniture "École de Nancy" signed Eugène Vallin. Its pediment is decorated with a sculpture that is difficult to appreciate in photography. 3D modeling makes it possible to better see the volumes and shapes of this work.
Maison Bergeret collection, Université de Lorraine
Statue of Jacques Callot
Located in Nancy, on the side of the Arc Héré behind Place Stanislas, this facade is approximately 15 meters wide.
Rue Lionnois in Nancy
Modeling of a street made from photographs taken by drone. The central point of this modeling is the Bergeret Mansion which was the subject of a virtual visit for the University of Lorraine. Many hours of calculation were required to generate this rendering from 171 high definition photos.
