Aim of the present research is the setup of an alternative methodology and instrumentation to be applied for cleaning ancient tapestries which need restoration. A new instrument based on the simultaneous dispensing and aspiration of water (hydro-aspiration method) and capable of removing the deposited particulate matter (DPM), has been developed and its performances tested on an ancient polymateric tapestry belonging a precious series called Ulysses Stories, stored at the Quirinale Palace (Rome). This innovative system has been compared to traditional methodologies commonly employed by restores for tapestries cleaning operations. At this purpose, the quantity and the chemical composition of the particulate matter removed by the different systems and collected on quartz fibre filters, have been estimated. Different analytical techniques have been applied to this purpose. The hydro-aspiration method resulted to be more efficient in removing the dirt and also in preserving the structure of these precious metallic yarns.

This paper illustrates a 3D survey performed at the well-known Villa di Domiziano site in the Circeo National Park using the new Leica Mobile Mapping System (MMS) BLK2GO. The project's aim is to identify and document earthwork anomalies, a type of evidence extremely frequent in the Villa, but difficultly traceable both for site s extension and for the presence of mixed vegetation, composed of dense foliage of maritime pines and brushwood. This research, realized within the project The Domitian Villa: An Imperial Residence in Sabaudia, Italy, winner of the 2019 Grant for the helby White and Leon Levy program, aims to create a multidisciplinary documentation of the entire Villa of Domitian, starting from the extraction of Digital Terrain Model (DTM). The Test-case was an opportunity to test both practicality and accuracy of new Leica BLK2GO with the ultimate aim of identifying and documenting earthwork anomalies and comparing obtained data with those coming from a previous UAV-LiDAR survey.

Very often our Cultural Heritage deals with several cases of lost monuments or part of them, due to destruction, replacement or radical changes caused over time. Today the documentation of intangible because lost heritage can be supported by virtual reconstruction, based on a multidisciplinary approach, for both scientific and cultural-leisure applications. Currently, the use of 3D digital acquisition techniques represents the most popular means for the documentation and digitization of our Heritage. The advantage of recreating a detailed virtual model of an invisible place can, on one hand, support scholars in their associated studies, to better understand urban or architectural transformations for example; on the other hand, improving the spread of Cultural Heritage artefacts by using different medium of visualization reaching a wider public directly. To this purpose, geomatics techniques and survey data processing provide a very powerful tool, extracting both geometric and descriptive information. The paper deals with a virtual reconstruction of the San Geminiano Church in San Marco's Square in Venice, a masterpiece of architecture by the great master Jacopo Sansovino, demolished during the Napoleonic domination of Venice. This is a particular case of today intangible heritage, as part of the artworks, such as statues, altar, paintings, that belonged to this church are now preserved and relocated in the other buildings, distributed over the Venetian territory. Point clouds coming from laser scanning and photogrammetry of the current San Marco's Square and of the various artworks, distributed in several places of the city, integrated with historical analysis and iconographic sources are the rigorous starting point for the virtual reconstruction of the today invisible Church, by using tools of modeling, of computer graphics up to the creation of 3d printed physical models. These can be considered as an augmented replica, meaning the interaction between digital fabrication (3d printed model), rendering of the digital models, videos and video-mapping just to support communication and disseminating the results and the hypotheses we made about the Church reconstruction, with the most appropriate tools.

In this work, the first results on the settlement analysis of the masonry umbrella vault located in the Masegra Castle (Sondrio, Italy) are presented. An umbrella vault is a particular type of cross vault in which the high number of sails is disposed according to an umbrella-shaped configuration. For geometry reasons, these vaults presents typically a good load-bearing capacity when subjected to vertical and horizontal loads. Therefore, the most critical issue is given by settlements of the supporting walls. A geometrical model based on NURBS surfaces has been derived starting from a detailed point cloud. A recently published method based on an adaptive kinematic limit analysis is adopted to find the cracks configuration deriving from a given base settlement.

The present paper focuses on the application of an innovative image-based monitoring methodology derived from the Motion Magnification (MM). The method proved to be very useful for monitoring structural vibration of buildings, included cultural heritage. In particular, some case studies of outdoor experiments on Cultural Heritage sites were carried out: the so-called Temple of Minerva Medica in Rome, the Ponte delle Torri of Spoleto and the Archeological complex of the Crypta Balbi, in Rome. The studied structures were monitored by a smart but low-cost device (camera, smartphone, tablet etc.). Small movements in the taken videos were recorded and analyzed to understand the dynamic behavior and detected the weak parts with possible evolution of the state of damage. Possible analyses include modal analysis and identification of natural frequencies. Results were also compared with conventional vibration measurement methods showing encouraging perspectives.