What beauty is waiting to be revealed?
Millimetric Detail
For ongoing maintenance and studies on one of the world’s most renowned monuments, the Duomo of Florence commissioned us to survey the entire bell tower with millimetric detail, in order to deliver a digital “copy” of the structure, both in terms of geometry and materials.
How did we reveal it?
Laser scanning survey combined with ultra-high-definition photogrammetry
Surveying a monument nearly 90 meters tall with millimetric precision seemed almost impossible. The final survey had to digitally identify each individual element and marble inlay on the façades for archiving and scheduled maintenance. By combining laser scanning with ultra-high-definition photogrammetry, we delivered “the survey” of Giotto’s Bell Tower. The laser scanning of the interior was carried out at night to avoid closing the monument to tourists, while photographic campaigns of all four façades were conducted from an aerial platform reaching up to 90 meters—just a few of the solutions adopted to accomplish this “feat.”
Project Features and Highlights
- 15,000 photographic shots, complete point cloud from the laser scanner survey of 2 billion 326 million points.
- Ultra-high detail survey of the external façades from the ground up to the top at about 90 meters in height.
- INTERNATIONAL CONFERENCE OF STUDIES GIOTTO’S CAMPANILE 2018 (Florence, November 15-16, 2018) (the conference program)
