Laser scanner and Photogrammetry for the survey of Monumental Cemetery in Piazza del Duomo, Pisa (Italy)

The present paper describes both a high-resolution survey of the facade of the Monumental Cemetery in Piazza del Duomo (Pisa, Italy) was realised. It’s performed via the Riegl LMS Z420i laser scanner available at the Department of Civil Engineering (DCE), seat of Topography and Photogrammetry, and a photogrammetric survey of the main entrance portal of the cemetery, in order to provide documentation for restoration purposes. Technological evolution of terrestrial laser scanning equipment has led to an ever increasing precision and performing speed of surveys. As a consequence, laser applications in architectural high-resolution surveys have become a valuable support and make up an excellent integration of traditional photogrammetric surveys. The abilities of surveying at very small scanning steps, along with the very high precision, which can be achieved even by a single measurement, and of near-real-time rendering of the photograph of the surveyed object on the three-dimensional model, allow implementation of the obtained model even for restoration purposes, which require detailed surveys at very great scales.