Il sistema fotogrammetrico 3DEYE per il rilievo 3D in quota: Il Bastione di Sant'Antonio in Bari

The architectural survey of buildings located in ancient town centres has always posed one difficulties related to the narrow surrounding streets and to the impossibility of accessing roofs and coverings. Although modern technologies for digital photogrammetric survey, allow for once unhoped-for solutions, some constraints -- especially related to regulatory issues -- still remain, as is the case with UAVs. Their use, is not allowed in areas that are identified as "critical" by ENAC (the Italian Civil Aviation Authority) regulations, due to the presence of buildings and people. One possible solution is the use of pole-mounted cameras, which however returns sometimes unrewarding results in terms of image resolution. In this survey campaign, a new pole-equipped stabilized camera, the 3DEYE system developed by Microgeo, was experimented on a case study - the St. Anthony Bastion, a defensive building dating back to 1524 - located on the seafront of Bari (Puglia).