A Web GIS-based Integration of 3D Digital Models with Linked Open Data for Cultural Heritage Exploration

This PhD project explores how geospatial semantic web concepts, 3D web-based visualisation, digital interactive map, and cloud computing concepts could be integrated to enhance digital cultural heritage exploration; to offer long-term archiving and dissemination of 3D digital cultural heritage models; to better interlink heterogeneous and sparse cultural heritage data. The research findings were disseminated via four peer-reviewed journal articles and a conference article presented at GISTAM 2020 conference (which received the ‘Best Student Paper Award’)

4D Reconstruction and Visualization of Cultural Heritage: Analysing our Legacy Through Time

Temporal analyses and multi-temporal 3D reconstruction are fundamental for the preservation and maintenance of all forms of Cultural Heritage (CH) and are the basis for decisions related to interventions and promotion. Introducing the fourth dimension of time into three-dimensional geometric modelling of real data allows the creation of a multi-temporal representation of a site. In this way, scholars from various disciplines (surveyors, geologists, archaeologists, architects, philologists, etc.) are provided with a new set of tools and working methods to support the study of the evolution of heritage sites, both to develop hypotheses about the past and to model likely future developments. The capacity to “see” the dynamic evolution of CH assets across different spatial scales (e.g. building, site, city or territory) compressed in diachronic model, affords the possibility to better understand the present status of CH according to its history. However, there are numerous challenges in order to carry out 4D modelling and the requisite multi-data source integration. It is necessary to identify the specifications, needs and requirements of the CH community to understand the required levels of 4D model information. In this way, it is possible to determine the optimum material and technologies to be utilised at different CH scales, as well as the data management and visualization requirements. This manuscript aims to provide a comprehensive approach for CH time-varying representations, analysis and visualization across different working scales and environments: rural landscape, urban landscape and architectural scales. Within this aim, the different available metric data sources are systemized and evaluated in terms of their suitability

Building Cultural Heritage Resilience through Remote Sensing: An Integrated Approach Using Multi-Temporal Site Monitoring, Datafication, and Web-GL Visualization

In the American West, wildfires and earthquakes are increasingly threatening the archaeological, historical, and tribal resources that define the collective identity and connection with the past for millions of Americans. The loss of said resources diminishes societal understanding of the role cultural heritage plays in shaping our present and future. This paper examines the viability of employing stationary and SLAM-based terrestrial laser scanning, close-range photogrammetry, automated surface change detection, GIS, and WebGL visualization techniques to enhance the preservation of cultural resources in California. Our datafication approach combines multi-temporal remote sensing monitoring of historic features with legacy data and collaborative visualization to document and evaluate how environmental threats affect built heritage. We tested our methodology in response to recent environmental threats from wildfire and earthquakes at Bodie, an iconic Gold Rush-era boom town located on the California and Nevada border. Our multi-scale results show that the proposed approach effectively integrates highly accurate 3D snapshots of Bodie’s historic buildings before/after disturbance, or post-restoration, with surface change detection and online collaborative visualization of 3D geospatial data to monitor and preserve important cultural resources at the site. This study concludes that the proposed workflow enhances the monitoring of at-risk California’s cultural heritage and makes a call to action to employ remote sensing as a pathway to advanced planning. View Full-Tex

Share - Publish - Store - Preserve. Methodologies, Tools and Challenges for 3D Use in Social Sciences and Humanities

Through this White Paper, which gathers contributions from experts of 3D data as well as professionals concerned with the interoperability and sustainability of 3D research data, the PARTHENOS project aims at highlighting some of the current issues they have to face, with possible specific points according to the discipline, and potential practices and methodologies to deal with these issues. During the workshop, several tools to deal with these issues have been introduced and confronted with the participants experiences, this White Paper now intends to go further by also integrating participants feedbacks and suggestions of potential improvements. Therefore, even if the focus is put on specific tools, the main goal is to contribute to the development of standardized good practices related to the sharing, publication, storage and long-term preservation of 3D data

Documenting, Interpreting, Publishing, and Reusing : Linking archaeological reports and excavation archives in the virtual space

This PhD thesis examines how application of 3D visualization and related digital analytical tools is having a transformative impact on archaeological practice via improvement of visual-spatial thinking and the strengthening of conceptual understanding. However, the deployment of these new digital methods is essentially still at an experimental stage. Therefore, the thesis undertakes a critical evaluation of current progress, identifying both shortcomings and opportunities. It argues that more work is needed to systematically identify and resolve current operational challenges in order to create improved digital frameworks that can strengthen future performance across the wider discipline.The PhD research is based on four “parallel experiments” designed to facilitate mutual enrichment and on-going refinement. Each individual experiment generated research articles, which investigate how particular 3D and digital methods can be adapted to diverse kinds of archaeological sites and features,each with unique characteristics. The articles demonstrate how particular methods can be deployed to constantly refine and improve documentation procedures, and to review and adjust interpretation during the excavation process. In total, the thesis produced five research articles and three new web-based publishing systems.Overall, the thesis demonstrates that application, proactive evaluation and constant improvement of new 3D visualization and digital analytical tools will play an increasingly significant role in strengthening and better integrating future archaeological methods and practice. The research also generates original insights and new digital platforms that together underline the importance of applying these new digital tools across the wider archaeological discipline. Finally, the thesis cautions that digital innovation needs to be anchored in an "open science" culture, including strong ethical frameworks and commitment to FAIR principles (i.e. Findability, Accessibility, Interoperability, and Reusability) of data archiving as a key component of research design and wider societal engagement

Heritage-led ontologies: Digital platform for supporting the regeneration of cultural and historical sites

The increasing application of digital technologies to cultural heritage (CH) is wide and well documented, including a variety of tools such as digital archives, online guides and HBIM repositories. Several vocabularies and ontologies were designed to order heritage data and make CH more accessible and exploitable. However, these tools have often focused on a particular dimension of CH producing high value in separate sectors (e.g. access to conservation of historic buildings and data valorisation for restoration of heritage assets) but lacking ways for adapting or replicating the model to urban complex systems. Moreover, many studies and tools show large effort in cataloguing and archiving, but less in providing tools for designing and managing. The ROCK platform, developed within the Horizon 2020 (H2020) funded project ROCK (GA 730280), addresses the need for a management and interventionoriented interoperable tool, aimed at storing, visualizing, elaborating and linking data on cultural heritage. The use of already existing ontologies was not sufficient for developing a tool to deal with the complexity of urban systems and heterogeneous data sources. Instead, a participative methodology was set in place for the development of a context-based semantic framework to define the needs and requirements of heritage-led regeneration actions

3D DATA INTEGRATION FOR WEB BASED OPEN SOURCE WebGL INTERACTIVE VISUALISATION

Recent advances in open-source geospatial technologies in WebGIS allowed the visualization of a 3D complex environment on the web, exploiting realistic Globe reproduction of the real territorial asset. At the same time, in the field of gaming technologies, the new possibilities offered by open-source WebGL JavaScript libraries allowed the creation of Virtual Reality navigation models on the web. The integration between 3D GIS globe navigation models and VR environment navigation is a solution that offers a further level of detail in web navigation, exploiting the capabilities of web browsers in the best way. This research further contributes to this field, showing a workflow to integrate different 3D data in a VR and 3D WebGIS navigation model. The case study for this research is the new building of the University of Twente, Faculty of Geo-Information Science and Earth Observation (ITC) of Enschede (The Netherlands). This work tests the online integration of variety of 3D input data that can lead to different Levels of Details (LoD) of the buildings inside the Globe-based WebGIS platform. The developed solution works on desktop and mobile devices using the capabilities of the most common web browsers, avoiding any software installation. The result of this work is based on completely open-source solutions that offers the possibility to navigate within a 3D model, which is useful for citizens, governmental or private institutions in decision-making processes. This work represents a first step towards the ambition to generate a web Digital Twin platform to combine datasets from different sources in a unique open-source solution

Clustering over the Cultural Heritage Linked Open Dataset: Xlendi Shipwreck

International audienceCultural heritage (CH) resources are very diverse, heterogeneous , discontinuous and subject to possible updates and revisions in nature. The use of semantic web technologies associated with 3D graph-ical tools is proposed to improve the access, the exploration, the mining and the enrichment of this CH data in a standardized and more struc-tured form. This paper presents a new ontology-based tool that allows to visualize spatial clustering over 3D distribution of CH artifacts. The data that we are processing consists of the archaeological shipwreck "Xlendi, Malta", which was collected by photogrammtry and modeled by the Ar-penteur ontology. Following semantic web best practices, the produced CH dataset was published as linked open data (LOD)