Development of reversible intelligent prosthesis for the conservation of sculptures. A case study

[EN] The application of preventive conservation measures after restoration processes is a sustainable method to control and mitigate possible deterioration and damage to Cultural Heritage. Preservation requires monitoring physical parameters that influence the monument. This document presents the development of a versatile hybrid system based on a 3D printed prosthesis implanted with sensors to collect relevant environmental data. This novel system has been applied to a work of relevance, the Stone Sepulcher of Queen Mary of Castile, located in the Royal Monastery of the Holy Trinity of Valencia (Spain). The development of such an intelligent prosthesis aims to improve the conservation of a work of art. The system presented here is completely reversible, leaving any trace on the sculpture where it was inserted after removal. This intelligent prosthesis can monitor the environmental conditions and send them to a remote server in the cloud. The results have demonstrated the viability and suitability of the procedure and present an innovative solution applicable to other pieces of Cultural Heritage.Niquet, N.; Sánchez López, M.; Mas-Barberà, X. (2020). Development of reversible intelligent prosthesis for the conservation of sculptures. A case study. Journal of Cultural Heritage. 43:227-234. https://doi.org/10.1016/j.culher.2019.12.0102272344

RAPID AND LOW-COST PHOTOGRAMMETRIC SURVEY OF HAZARDOUS SITES, FROM MEASUREMENTS TO VR DISSEMINATION

In the field of geomatics, the development of 3D surveying techniques that can produce dense point clouds and high-resolution three-dimensional models has opened the possibility of using these techniques to generate digital replicas of a given asset to be used in contexts of cultural promotion or entertainment.These non-traditional applications have been made easier by the spreading of low-cost but fast surveying techniques, allowing them to be used in contexts or projects with fewer resources. Close-range photogrammetry is nowadays the cheapest, most flexible, and fastest technique that can be used to produce high-resolution and high-quality digital copies of reality. In this paper, we present an application of the Ant3D multi-camera system, a novel photogrammetric device designed for the rapid 3D surveying of sites characterized by poor accessibility and narrow spaces. The paper describes the three-dimensional acquisition of underground tunnels in a hazardous abandoned mining site. The digitalisation work aims to create 3D models to be experienced safely in a virtual- or augmented- reality immersive navigation of the site for cultural promotion. A workflow is proposed to turn raw reality-based 3D models into refined and efficient 3D assets that can be exploited in a game engine. Applications for mobile devices, desktop, and VR headsets, using the produced 3D assets are described.</p

A Survey of Augmented, Mixed and Virtual Reality for Cultural Heritage

A multimedia approach to the diffusion, communication, and exploitation of Cultural Heritage (CH) is a well-established trend worldwide. Several studies demonstrate that the use of new and combined media enhances how culture is experienced. The benefit is in terms of both number of people who can have access to knowledge and the quality of the diffusion of the knowledge itself. In this regard, CH uses augmented-, virtual-, and mixed-reality technologies for different purposes, including education, exhibition enhancement, exploration, reconstruction, and virtual museums. These technologies enable user-centred presentation and make cultural heritage digitally accessible, especially when physical access is constrained. A number of surveys of these emerging technologies have been conducted; however, they are either not domain specific or lack a holistic perspective in that they do not cover all the aspects of the technology. A review of these technologies from a cultural heritage perspective is therefore warranted. Accordingly, our article surveys the state-of-the-art in augmented-, virtual-, and mixed-reality systems as a whole and from a cultural heritage perspective. In addition, we identify specific application areas in digital cultural heritage and make suggestions as to which technology is most appropriate in each case. Finally, the article predicts future research directions for augmented and virtual reality, with a particular focus on interaction interfaces and explores the implications for the cultural heritage domain

Dynamic virtual reality user interface for teleoperation of heterogeneous robot teams

This research investigates the possibility to improve current teleoperation control for heterogeneous robot teams using modern Human-Computer Interaction (HCI) techniques such as Virtual Reality. It proposes a dynamic teleoperation Virtual Reality User Interface (VRUI) framework to improve the current approach to teleoperating heterogeneous robot teams

Interfaces for human-centered production and use of computer graphics assets

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