Abstract
Abstract. In recent years, technological advances in game engines allowed researchers to propose methodological frameworks for integrating digital models of the built heritage in Virtual (VR), Augmented (AR) and Mixed Reality environments. Among other benefits, specific applications have demonstrated the potential of such immersive environments to raise awareness about the significance of historical objects, share associated knowledge and facilitate its collaborative management. Based on the necessity to retrieve information about users' experience, this research considers the potential of such environments to include a broader range of stakeholders in the value assessment process for historical sites and objects and provide more comprehensive representations of their significance for society. This paper proposes implementing a collaborative framework for value assessment in a virtual environment that combines multiple heritage representations to explore this issue. A prototype is further implemented on a practical case study, namely the Collegiate Church of Saint-Jean, located in Liège, Belgium.
Highlights
Raw point clouds generated by photogrammetric reconstructions and laser scanning surveys provide a first virtual representation of a place of interest and a reliable source for metric data extraction
This paper presented a virtual environment prototype that allows capturing values associated by multiple stakeholders to features of the built heritage
The interest of this research lies in the geolocation of value judgements and the possibilities offered in terms of data retrieval
Summary
Raw point clouds generated by photogrammetric reconstructions and laser scanning surveys provide a first virtual representation of a place of interest and a reliable source for metric data extraction They support the reconstruction of other three-dimensional representations of objects in the form of 3D meshes with different levels of accuracy, complexity and information (Banfi, 2021). Researchers investigated the use of such 3D reproductions for visualization purposes and to support the organization, storage, and transmission of associated heritage information In this context, several research projects highlighted the added value of integrating virtual copies of the built heritage in immersive and interactive environments. Accessible virtual copies of the built heritage in immersive and interactive environments enhance all stakeholders' participation in the conservation process They could contribute to maintaining a link between society and places of significance in case of temporal or permanent inaccessibility (Hallot et al, 2021). The aims are to enable experts to provide more comprehensive representations of historical objects' cultural significance and to confront conservation projects to the previously identified values
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