A point cloud classification method for the ScanToBIM process in Architectural Heritage

Heritage Building Information Modelling (H-BIM) has completely changed the meaning of managing architectural sites and ancient buildings. Nowadays, the application of cutting-edge methods for analysis, conservation and restoration is made possible by the modern 3D scanning technologies, such as terrestrial laser scanners (TLS) and digital cameras, which produce highly accurate point clouds. Furthermore, as these files are time-consuming and computationally expensive, strategies are being developed to optimise their handling and to streamline the conversion of a point cloud into a BIM model, adopting Scan-to-BIM approaches and widespread Artificial intelligence. In this scenario, the current work investigates the use of the CANUPO multiscale algorithm and the RANSAC model-fitting method for the classification of the staircase of Palazzo Nico, a neoclassical building in Gioia del Colle, Italy, using data obtained through TLS. The location’s geometry, which includes numerous floors, vaults, balustrades, and typical 19th-century-style ornate staircase, makes it an excellent case study for assessing the applicability of these tools, serving as a source base for additional modelling procedures

Tecniche di rilievo architettonico integrato per la conservazione e la valorizzazione dei Beni Culturali. Il caso di studio del Complesso abbaziale della SS. Trinità di Venosa, Italia

L'acquisizione di documentazione digitale per i Beni Culturali immobili è frutto di un processo articolato, fortemente dipendente dalla natura del manufatto e dalla strumentazione utilizzata. Ad oggi, esistono diverse tecniche di rilievo che consentono la generazione di modelli 3D realistici, definiti da una accurata qualità metrica e da un dettaglio coerente con le caratteristiche geometriche dell'oggetto. La ricerca si pone come obiettivo principale la sperimentazione di un processo unificato tra diverse tecniche di rilievo architettonico, range-based e image-based, a partire dall’articolato caso di studio relativo al “Complesso abbaziale della SS. Trinità di Venosa” (PZ), Italia. Lo studio, inoltre, esplora il potenziale del processo di virtualizzazione del rilievo e la sua fruizione tramite visualizzazione online a 360° quale contribuito alla conoscenza disciplinare e al turismo a distanza di un monumento, necessari per sopperire alle limitazioni agli spostamenti imposti dai principi di sostenibilità ambientale e dalla pandemia COVID-19

Digital techniques for the representation of virtual tours of urban architectural heritage

The study illustrates the creation of a mobile App usable, above all, by laypersons, to create a virtual tour of the historical architecture that is being visited. The evolution of the historical center’s representation for the enjoyment by a wider audience, especially young and tourist, must necessarily be conveyed through smartphones, of which the new generations have acquired the full potential. Thanks to increasingly powerful devices, which can process complex 3D rendering in real time, it is possible to create an experience for the knowledge of the place with a 360° virtual tour. With the implementation of this App, we had tried to give back to the user a digital model full of useful information for the knowledge of the architectural place, but above all as much as possible immersive and intuitive in terms of navigation, using the gesture that today are rooted in smartphone users. The analyzed issues are many, including the implementation of technology for the creation of virtual tours targeted in teaching and tourism, it’s possible use to preserve and make known altered or no longer existing environments. The case study focuses on the viability of the Old Town of Altamura (Ba), characterized by numerous dead-end widening areas, called Claustri. The study was focused on Claustro Tricarico which presents architectural values of the Middle Ages, typical of the Apulian territory.DOI: https://doi.org/10.20365/disegnarecon.21.2018.18</p

Boosting urban community resilience to multi-hazard scenarios in open spaces: a Virtual Reality – Serious Game training prototype for heat wave protection and earthquake response

A key role in making cities resilient has been acknowledged in raising risk preparedness and awareness of urban communities, by appropriate education and communication strategies, which should rely on innovative and pervasive tools. In this regard, an outstanding paradigm shift is driven by the advancement of Virtual Reality, which can take advantage of Serious Games, for helping individuals develop responsive behaviours in case of both slow and sudden disasters and, thus, boosting effective human-urban-building interaction within a wider process of safety and sustainability. To this end, the paper proposes a VR-SGs training prototype for multi-hazard scenarios in urban open spaces. The prototype integrates results from phenomenological and behavioural analyses and is applied to representative typologies of the built environment. The prototype is demonstrated for heat wave protection and earthquake response through the design and implementation of its functional features – virtual environment, interaction mode, learning outcomes and storyline – and its informative contents, including simulation-based data on surface temperatures, extent of falling debris and crowd motion. The final goal is to validate a reliable and flexible tool in view of wide replication in urban contexts for both instructing on critical situations and communicating mitigation strategies