Digital documentation of cultural heritage is a very important issue that is receiving increasing attention from the scientific community. The availability of accurate 3D models of historical buildings is crucial to preserve our cultural heritage, because it allows us to reconstruct them in case of fortuitous collapse or intentional demolition or damage. In this paper, we present a new approach for the digital documentation of cultural heritage. Our approach is based on a hybridization of different techniques for data capture and processing and image analysis, with the aim of obtaining 3D models from images and the texturing of these models. In particular, we rely on convergent photogrammetry as way to acquire information about the real objects for generation of 3D models. We also apply computer vision and artificial intelligence techniques for further processing of all acquired data. As a result, we have developed a new way to obtain digital documentation of cultural heritage from data by using accurate reverse engineering techniques. Our methodology has been successfully applied to the digital documentation of a famous historical building in the city of Santander: the Royal Palace of Magdalena, the conference venue of this conference Cyberworlds' 2014

ABSTRACT:This paper is part of a research about ribbed vaults systems in French Gothic Cathedrals. Our goal is to compare some different gothic cathedrals to understand the complex geometry of the ribbed vaults. The survey isn't the main objective but it is the way to verify the theoretical hypotheses about geometric configuration of the flamboyant churches in Paris. The survey method's choice generally depends on the goal; in this case we had to study many churches in a short time, so we chose 3D reconstruction method based on image dense stereo matching. This method allowed us to obtain the necessary information to our study without bringing special equipment, such as the laser scanner. The goal of this paper is to test image matching 3D reconstruction method in relation to some particular study cases and to show the benefits and the troubles. From a methodological point of view this is our workflow: -theoretical study about geometrical configuration of rib vault systems; -3D model based on theoretical hypothesis about geometric definition of the vaults' form; -3D model based on image matching 3D reconstruction methods; -comparison between 3D theoretical model and 3D model based on image matching;

No abstract

No abstract

No abstract