Survey Applications Using the Optech Ilris 3d Laser Scanner and Photogrammetry for a Complete Detailed 3d Cad Reconstruction of Objects

Terrestrial Laser Scanner is a key methodology in cultural heritage survey, as it allows the representation of objects with high accuracy from the geometric point of view but also allows the generation of graphic representations of high visual impact for public (non technical) audience. For the survey of monumental structures, for which it is difficult to have contact with the object because of the operating context or because of its valuable features, there are two leading techniques: the photogrammetric survey and the laser scanner techniques.