Analysis and validation of the 3D reconstructive process through the Extended Matrix Framework of the Temple of the Roman Forum of Nora (Sardinia, CA)

In this work, we will describe the application of the Extended Matrix Framework (EMF) to the 3D reconstruction of the temple on the Roman forum of Nora. EMF represents a specific section of the Extended Matrix (EM) method, developed by the VHLab of the CNR ISPC (Rome), dedicated to the development of software solutions for 3D data management in the field of virtual reconstruction. The combination of EM and EMF allows to: map the reconstructive process, validate the entire workflow (from data ingestion to 3D modelling), manage 3D data, and share outcomes online

Analysis of Visualisation and Interaction Tools Authors

This document provides an in-depth analysis of visualization and interaction tools employed in the context of Virtual Museum. This analysis is required to identify and design the tools and the different components that will be part of the Common Implementation Framework (CIF). The CIF will be the base of the web-based services and tools to support the development of Virtual Museums with particular attention to online Virtual Museum.The main goal is to provide to the stakeholders and developers an useful platform to support and help them in the development of their projects, despite the nature of the project itself. The design of the Common Implementation Framework (CIF) is based on an analysis of the typical workflow ofthe V-MUST partners and their perceived limitations of current technologies. This document is based also on the results of the V-MUST technical questionnaire (presented in the Deliverable 4.1). Based on these two source of information, we have selected some important tools (mainly visualization tools) and services and we elaborate some first guidelines and ideas for the design and development of the CIF, that shall provide a technological foundation for the V-MUST Platform, together with the V-MUST repository/repositories and the additional services defined in the WP4. Two state of the art reports, one about user interface design and another one about visualization technologies have been also provided in this document

Costruire macchine del tempo: professione e vocazione

Comunicación presentada en el I Congreso Internacional de Narrativas Digitales y Virtualización del Patrimonio, Universidad de Alicante, 24-26 de noviembre 2022.Ponencia de Emanuel Demetrescu (CNR-Roma) sobre el desarrollo de nuevas herramientas para la trazabilidad científica en proyectos de virtualización

An Online Dissemination Workflow for the Scientific Process in CH through Semantic 3D: EMtools and EMviq Open Source Tools

This article explores the use of open source 3D tools to improve the transformation of the archaeological record into a virtual reconstruction. The goal of the research was to improve the dissemination of complete reconstructive Extended Matrix (EM) datasets, organized by epochs, to allow a “time travel” experience, by means of the EMviq online service “metaphor”. This article presents an incremental version (ver. 1.3.1) of EMtools (add-on for Blender 3D) and a renewed version of EMviq. These two original open source (GPL3) tools have been developed, on one hand, to facilitate the process of semantic enrichment and source-based 3D modeling of cultural contexts (EMtools) and, on the other hand, to visually inspect data within immersive virtual reality viewers, online (WebXR), or via mobile devices (EMviq). An application case is shown to illustrate the entire work-flow from the archaeological stratigraphic reading to the representation of the virtual reconstruction of what a context must have looked like at a given time in antiquity

Linee Guida per la mappatura del backend scientifico sulle ricostruzioni virtuali

Linee guida elaborate all'interno del progetto e-Archeo finanziato da Ales SpA e Ministero della Cultura e indirizzato alla valorizzazione multimediale di otto aree archeologiche italiane. Le linee guida sono state fornite alle Università e alle aziende creative coinvolte nel progetto per la mappatura del back-end scientifico sulle ricostruzioni virtuali. La codifica, il modello di struttura dati, le modalità operative sono redatte sulla base del modello Extended Matrix rimodulato secondo modalità operative più semplificate ma efficaci ai fini della fruizione scientifica

Temporal Lensing: An Interactive and Scalable Technique for Web3D/WebXR Applications in Cultural Heritage

Today, Web3D technologies and the rise of new standards, combined with faster browsers and better hardware integration, allow the creation of engaging and interactive web applications that target the field of cultural heritage. Functional, accessible, and expressive approaches to discovering the past starting from the present (or vice-versa) are generally a strong requirement. Cultural heritage artifacts, decorated walls, etc. can be considered as palimpsests with a stratification of different actions over time (modifications, restorations, or even reconstruction of the original artifact). The details of such an articulated cultural record can be difficult to distinguish and communicate visually, while entire archaeological sites often exhibit profound changes in terms of shape and function due to human activities over time. The web offers an incredible opportunity to present and communicate enriched 3D content using common web browsers, although it raises additional challenges. We present an interactive 4D technique called “Temporal Lensing”, which is suitable for online multi-temporal virtual environments and offers an expressive, accessible, and effective way to locally peek into the past (or into the future) by targeting interactive Web3D applications, including those leveraging recent standards, such as WebXR (immersive VR on the web). This technique extends previous approaches and presents different contributions, including (1) a volumetric, temporal, and interactive lens approach; (2) complete decoupling of the involved 3D representations from the runtime perspective; (3) a wide range applications in terms of size (from small artifacts to entire archaeological sites); (4) cross-device scalability of the interaction model (mobile devices, multi-touch screens, kiosks, and immersive VR); and (5) simplicity of use. We implemented and developed the described technique on top of an open-source framework for interactive 3D presentation of CH content on the web. We show and discuss applications and results related to three case studies, as well as integrations of the temporal lensing with different input interfaces for dynamically interacting with its parameters. We also assessed the technique within a public event where a remote web application was deployed on tablets and smartphones, without any installation required by visitors. We discuss the implications of temporal lensing, its scalability from small to large virtual contexts, and its versatility for a wide range of interactive 3D applications

An Online Dissemination Workflow for the Scientific Process in CH through Semantic 3D: EMtools and EMviq Open Source Tools

This article explores the use of open source 3D tools to improve the transformation of the archaeological record into a virtual reconstruction. The goal of the research was to improve the dissemination of complete reconstructive Extended Matrix (EM) datasets, organized by epochs, to allow a “time travel” experience, by means of the EMviq online service “metaphor”. This article presents an incremental version (ver. 1.3.1) of EMtools (add-on for Blender 3D) and a renewed version of EMviq. These two original open source (GPL3) tools have been developed, on one hand, to facilitate the process of semantic enrichment and source-based 3D modeling of cultural contexts (EMtools) and, on the other hand, to visually inspect data within immersive virtual reality viewers, online (WebXR), or via mobile devices (EMviq). An application case is shown to illustrate the entire work-flow from the archaeological stratigraphic reading to the representation of the virtual reconstruction of what a context must have looked like at a given time in antiquity

Multispectral UAV Data and GPR Survey for Archeological Anomaly Detection Supporting 3D Reconstruction

Archeological prospection and 3D reconstruction are increasingly combined in large archeological projects that serve both site investigation and dissemination of results. This paper describes and validates a method for using multispectral imagery captured by unmanned aerial vehicles (UAVs), subsurface geophysical surveys, and stratigraphic excavations to evaluate the role of 3D semantic visualizations for the collected data. The information recorded by various methods will be experimentally reconciled using the Extended Matrix and other original open-source tools, keeping both the scientific processes that generated them and the derived data separate, transparent, and reproducible. This structured information makes immediately accessible the required variety of sources useful for interpretation and reconstructive hypotheses. The application of the methodology will use the first available data from a five-year multidisciplinary investigation project at Tres Tabernae, a Roman site near Rome, where numerous non-destructive technologies, as well as excavation campaigns, will be progressively deployed to explore the site and validate the approaches

ATON: An Open-Source Framework for Creating Immersive, Collaborative and Liquid Web-Apps for Cultural Heritage

The web and its recent advancements represent a great opportunity to build universal, rich, multi-user and immersive Web3D/WebXR applications targeting Cultural Heritage field—including 3D presenters, inspection tools, applied VR games, collaborative teaching tools and much more. Such opportunity although, introduces additional challenges besides common issues and limitations typically encountered in this context. The “ideal” Web3D application should be able to reach every device, automatically adapting its interface, rendering and interaction models—resulting in a single, liquid product that can be consumed on mobile devices, PCs, Museum kiosks and immersive AR/VR devices, without any installation required for final users. The open-source ATON framework is the result of research and development activities carried out during the last 5 years through national and international projects: it is designed around modern and robust web standards, open specifications and large open-source ecosystems. This paper describes the framework architecture and its components, assessed and validated through different case studies. ATON offers institutions, researchers, professionals a scalable, flexible and modular solution to craft and deploy liquid web-applications, providing novel and advanced features targeting Cultural Heritage field in terms of 3D presentation, annotation, immersive interaction and real-time collaboration

An approach to extend the metadata schema of Zenodo for Cultural Heritage datasets

In this article, we present an approach designed to extend the metadata schema of the Zenodo data management platform to strengthen the FAIRness of the published dataset. We focus on a bottom-up approach starting from a series of datasets ranging from the 3D digitalisation of monuments and sites to the creation of reconstructive records (including the scientific documentation they are based on), to the implementation of digital storytelling and to the development of open source-based web-apps. We propose the simplest possible set of metadata to be included in the Zenodo platform with the possibility, for the community, to adopt and further develop/modify them. This article will describe in detail the formalisation and the digital formats adopted providing the related metadata templates developed within the projects