EMERGENCY INTEGRATED SURVEY OF THE SAN FRANCESCO BASILICA’S ATTICS AND DOMES IN FERRARA (ITALY)

Abstract

The recent technological advancements in the field of digital photogrammetry together with the improvement of computational methods for image analysis have been show to aid laser technologies in architectural measurements, yielding high-resolution surveys of unprecedented resolution. In theory (and in many real applications) an integrated survey coming from both laser scanning and photogrammetry is able to meet all the requirements to perform a correct architectural survey, both in terms of the centimeter resolution and for fine aesthetic representations. The presented study deals a survey of the attic and the top surface of the domes of the left and right naves of the San Francesco Basilica in Ferrara (Italy), in which not all the ideal conditions required for a good quality integrated survey are present. Different practical problems may pose due to a recent earthquake (2012). The present job will be focused on survey planning and performing, in such emergency condition, on the used techniques and the final products. The results of such survey will be used for a future restoration of the Basilica