3D survey and semantic analysis for the documentation of built heritage. The case study of Palazzo Centrale of Pavia University

Abstract

In the procedures regarding built heritage documentation, the process of representing the object in a digital environment is characterized by a high level of complexity. In fact, the need to process heterogeneous information, referring to quantity, quality and format is one of the main emerging issues. Recent technologies of digitization of our built environment offer excellent performances on data reliability and time of acquisition. On the other hand, they bring about new challenges regarding how to define methodologies and strategies to effectively elaborate such information. A possible way to optimize the use of these data is by implementing them into informative systems: these tools have great potential in the creation of multi-layered representations and offer extensive possibilities for interpretations and analyses. This research, carried out by the laboratories DAdaLab and PLAY of the University of Pavia, focuses on the University's Palazzo Centrale and aims at developing a precise methodological approach: starting from the 3D acquisition, the survey data are discretized-through critical processes of semantic analysis and breakdown-and later implemented into informative databases. Moreover, the architectural characters, construction phases and the strong bond with the urban setting make the case study particularly valuable; therefore, it represents an excellent opportunity to point out the potentials of this approach to the definition of management tools for the conservation of built heritage.

Mobile Laser Scanner Mapping System’s for the Efficiency of the Survey and Representation Processes

“…On the other hand, the mobile tool aligns itself with the process of renewal of the information message of digital representation models, addressing again those tensions that characterize their formal identity, modifying the metric morphological reliability and the qualities that increase its verisimilitude and correspondence to the real, as a function of more characteristic parameters of other interpretative aspects not strictly connected to the form. If, on the one hand the tendency is to make the digital model correspond as closely as possible to the real object, the synthesis of complexity is oriented on criteria of approximation of the form and limitation of imperfection to the advantage of standardization of the formal components of the built and easier computation and interaction with the model element (Miceli et al 2020). These are the communication criteria that define the methods of construction of the form to find in the graphics and, therefore, the definition of a graphic language of the helpful model words to make concepts that can also be complex easier to understand.…”

From the Point Cloud to BIM Methodology for the Ideal Reconstruction of a Lost Bastion of the Cáceres Wall

“…First, it should be noted that one of the clear objectives of this study was met, which was the protocolization of a useful method for the study and analysis of complex and blurred constructions, namely those that do not have an obvious limit and that are gradually integrated into the urban plot and the topography, thus becoming lost in one another, but which, in turn, have forged this urban plot and its surroundings over centuries [28,29].…”

Information System as Tool for Cultural Heritage Documentation and Preservation. Protocol Structuring and Testing on a Case Study

“…Although regulations for information platforms are being updated, the topic of integrating data ingested from different data is still under development. Systems such as the GIS Geographic Information System (Bocconcino, 2023;Doria, 2022), H-BIM Heritage Building Information Model (Sanseverino, 2022;Parrinello, 2019;Chiabrando, 2017) and AR/VR Augmented/Virtual Reality (Sangiorgio, 2021;De Fino, 2020;De Marco, 2023) for the facility management of the historic built environment represent the integrated interdisciplinary approach suggested for the optimisation of processes for the use and data management gathered in the data acquisition and asset documentation phase (Besana, 2019;Miceli, 2020). The aim of such process is to structure a single tool fulfilling objectives such as facilitating the overall vision for long-term sustainable management, informing stakeholders of current needs, and providing guidance on how to enhance the site.…”