3D MODELS OVER THE CENTURIES: FROM OLD FLOOR PLANS TO 3D REPRESENTATION

This paper presents a set of algorithms dedicated to the 3D modeling of historical buildings from a collection of old architecture plans, including floor plans, elevations and cutoffs. Image processing algorithms help to detect and localize main structures of the building from the floor plans (thick and thin walls, openings). The extrusion of the walls allow us to build a first 3D model. We compute height informations and add textures to the model by analyzing the elevation images from the same collection of documents. We applied this pipeline to XVIIIth century plans of the Chateau de Versailles, and show results for two different parts of the Chateau.