Digitization of Cultural and Museum Heritage represents one of the most engaging challenges that would ensure a sustainable and ethical approach for next generations; digital technology’s pervasiveness imposes a comprehensive management of architectural heritage by producing facsimiles of buildings and artworks and by testing robust methodologies, with the final result of providing effective multipurpose models. In this context, the main goal of the present paper is to develop a semantically aware HBIM model that includes an intelligent objects parametrization, leveraging Extended Reality (XR) technologies and digital curation of contents to pursue the preservation of Cultural Heritage (CH) as a whole. This research is implemented in the case study of the Ducal Palace of Urbino that houses the National Gallery of Marche. It was chosen as a remarkable example of a museum located in an architectural complex with a relevant historical background and fine detail of shapes and mouldings. In Italy, as in other European scenarios, museums and their collections need suitable dissemination and management systems that take advantage of the recent digital paradigms. The challenging approach is to exploit existing platforms and software and to adopt a cognitive modelling process, able to develop tools supporting managers and museum curators while enabling user experiences using immersive and interactive features. In order to stress the workflow, this work proposes the use of families with high Level of Detail (LOD) and high Level of Information (LOI). The present article provides, as well, an accurate data enrichment process specifically designed for a gallery’s artworks such as paintings and sculptures, in line with the national and international policies. The study presents a robust and reproducible methodology for digital musealization and management, focusing, as future overall objectives, towards a greater merging between the HBIM approach and XR technologies, also facilitated by training new professional figures with more in-depth digital skills.

Abstract. 3D digitisation is essential to enhance knowledge and conservation processes for Cultural Heritage (CH). However, movable heritage collected in museums, e.g., archeological finds, statues, coins, and musical instruments, often consists of highly reflective surfaces and/or featureless textures. The aim of this work is to stress the Structure from Motion Dense MultiView Reconstruction (SfM-DMVR) of objects, whose optical properties are challenging to this image-based technique. To improve the results obtained by SfM-DMVR standard acquisition workflow, this study exploited the potential of combining Noise Function Pattern (NFP) projection and light Cross Polarization (CP). Moreover, High Dynamic Range (HDR) image reconstruction was tested on images acquired according to different CP angles. The SfM-DMVR of a texture-less shiny ceramic object was then compared to the one obtained by a structured light triangulation scanner, the most reliable tool for such surfaces, but unfortunately quite expensive. The advantages and limitations of the presented method are discussed.

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Le politiche di accessibilità al nostro Patrimonio Culturale stanno attraversando un periodo di grande trasformazione e innovazione, influenzate in ultimo anche dalla pandemia globale da SARS-COV-2. Il presente contributo analizza come le principali istituzioni museali abbiano reagito ai lunghi periodi di chiusura da questa dettati e individua nel digitale, e nello specifico nella creazione di Virtual Museum (VM), il principale strumento risolutivo nel fronteggiare tale crisi, garantire l'accessibilità del Patrimonio ed offrirne una nuova visione. Partendo dall'indagine sulle azioni digitali intraprese dai musei, si propongono quindi quattro leve fondamentali per la corretta realizzazione di un VM: la digitalizzazione scientifica del bene culturale; la ricerca del giusto strumento di fruizione e coinvolgimento; l'indagine sulla soddisfazione dell'utente e lo studio dei suoi comportamenti; la formazione di personale specializzato, capace di operare all'interno dell'istituzione museale al fine di garantirne funzionamento, manutenzione ed implementazione futura. Tali principi non risultano utili solo nel risolvere le principali criticità emerse durante la pandemia, ma pongono soprattutto le fondamenta per una corretta pratica di progettazione museale, imprescindibile per fronteggiare un futuro sempre più connesso e digitale. Parole chiavePatrimonio culturale, virtual museum, digitalizzazione, esperienza utente, formazione. TopicsSegni / storia Schema illustrativo del Virtual Museum, caratterizzato da quattro principi, capace di superare le criticità dovute alla recente pandemia, e di proiettare le istituzioni museali verso le nuove sfide imminenti.