A point cloud is a set of data points in some coordinate system. In a three-dimensional coordinate system, these points are usually defined by X, Y, and Z coordinates, and often are intended to represent the external surface of an object. Point clouds may be created by 3D laser scanners. These devices measure a large number of points on an object's surface, and often output a point cloud as a data file. The point cloud represents the set of points that the device has measured. As the result of a 3D scanning process point clouds are used for many purposes, including to create 3D CAD models for manufactured parts, metrology/quality inspection, and a multitude of visualization, animation, rendering and mass customization applications. The point clouds are also employed in order to generate 3D model of urban environment. A survey carried out with the point clouds can give very accurate results on the architecture analyzed.
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.