Is a methodology of non-contact survey that refers exclusively to the use of photographs to conduct the three-dimensional reconstruction of real objects. It is a work ambiance, which provides the possibility of three-dimensional re-creation of buildings by globally and coherently integrating the stages of surveying, modeling and representation. This is achieved by extracting directly from photographs all the information necessary in each of these stages: coordinates, distances, characteristic points for the two dimensional restitution of planes and perspectives; apices and profiles for three dimensional reconstructing of elements; textures for visually enriching created volumes. The development of a three-dimensional model passes through 3 closely related phases: acquisition of the spatial coordinates (the points present on an image are associated with homologous points present on different images of the same scene, returning the scene within a single spatial reference), three-dimensional reconstruction of the geometry, restitution of visual appearance (the geometric nature of the scene is enhanced by the attributes that allow to describe aspects of the surface: the 3D model is associated with the texture acquired at the time of the shooting).
Published in Chapter:
San Pietro di Deca in Torrenova: Integrated Survey Techniques for the Morphological Transformation Analysis
Manuela Bassetta (Mediterranea University of Reggio Calabria, Italy), Francesca Fatta (Mediterranea University of Reggio Calabria, Italy), and Andrea Manti (Mediterranea University of Reggio Calabria, Italy)
Copyright: © 2017
|Pages: 33
DOI: 10.4018/978-1-5225-0675-1.ch011
Abstract
In this chapter San Pietro di Deca represented an opportunity for scientific knowledge process experimentation applied to a small building with a great past, an unknown monument standing in north west of Sicily that recently has been studied by a team of Austrian archeologists. The first scientific survey carried out by the authors by means of the latest technology as well as all the stages of the research are presented: the historical research, the laser scanner survey, the critical analysis leading to the interpretation of the architecture's masonry structures, and an accurate analytical representation of the transformation processes experienced by the structure from its origin until today. The evaluation of the survey and its comparison with similar Byzantine Sicilian buildings were major steps confirming the hypotheses inferred on the morphological evolution of the structure.