Methodologies and Technologies

The MAVA Project (Metodologie di Acquisizione, Valorizzazione e Archiviazione) was conceived to explore and integrate various technologies for the surveying, documentation, and dissemination of archaeological heritage, focusing in particular on several case studies within the Abruzzo region. The initiative aligns with the latest research and practical developments in the field of cultural heritage digitisation and enhancement, with the following objectives:

• To reinforce internationalisation and cooperation among research institutions, cultural organisations, and public/private stakeholders operating in the realm of cultural heritage.
• To present the surveyed data in user-friendly, flexible formats (point clouds, 3D models, spherical photographic surveys) for applications in Virtual Reality (VR) or Augmented Reality (AR), as well as for 3D printing and web-based sharing;
• To provide a consultation and sharing platform accessible to both the scientific community and the wider public;
• To develop educational, audio-enhanced, and interactive pathways that enrich the experience of visiting an archaeological site, either physically or virtually;
• To develop educational, audio-enhanced, and interactive pathways that enrich the experience of visiting an archaeological site, either physically or virtually;
• To reinforce internationalisation and cooperation among research institutions, cultural organisations, and public/private stakeholders operating in the realm of cultural heritage.

Survey Methodologies and Technologies

Drone Survey

The primary data acquisition tool envisaged by the MAVA Project is aerial surveying by drone, which is particularly advantageous for observing and documenting large-scale archaeological sites or extensive territories. Within this project, the drone is operated in both automated and manual modes, using a short-range controller or a more complex remote system. The cameras mounted beneath the aircraft capture high-quality photographs and videos that can be readily processed into shareable 3D formats, even broadcast live on web or social platforms.

3D Laser Scanning and Photographic Survey

3D laser scanning technology, integrated with high-resolution photographic surveys, further enhances documentation by generating high-density point clouds and textured three-dimensional models. Within the MAVA Project, two types of 3D laser scanners are employed:

• Short Range (high precision, short distance): Appropriate for digitising small to medium-sized archaeological artefacts (e.g. statues, fragments).
• Long/Medium Range: Intended for architectural or landscape surveys (walls, ancient buildings, extensive stratigraphic excavations).

The principal survey phases include:

• Point Cloud Acquisition: Each scan records (x, y, z) coordinates and reflectance or colour (RGB) values;
• Alignment and Registration: Combining individual scans (coarse/fine registration) using reflective sphere targets or feature-recognition algorithms;
• Merging: Producing a single unified model by fusing point clouds, reducing noise, and generating three-dimensional meshes;
• Texturing: Projecting high-definition photographic images onto the final mesh to obtain a photorealistic 3D model.

Representation in Virtual Reality (VR) and Augmented Reality (AR)

Emerging VR and AR technologies enable immersive and interactive engagement with archaeological heritage, bringing cultural content to the wider public in a dynamic and captivating manner.

• Augmented Reality (AR): Overlays digital elements (text, 3D images, animations) onto the real environment, accessible via smartphones, tablets, or dedicated headsets (smart glasses). This approach enhances understanding of the historical and archaeological context by integrating additional information directly onto the objects or artefacts themselves.
• Virtual Reality (VR): Constructs entirely simulated environments in which users immerse themselves through specialised headsets (e.g. Oculus). As part of the MAVA Project, 3D models derived from scanning and photogrammetric surveys are refined to offer virtual reconstructions of archaeological sites, together with historically plausible scenarios grounded in archaeological and documentary research.

Such methods are particularly valuable for educational and outreach purposes, enabling:

• Virtual visits to archaeological areas that may be inaccessible for conservation or safety reasons;
• Immersive historical reconstructions of buildings, stratigraphic layers, and artefacts (following principles of stability and, among others, the guidelines set out in the Seville Charter concerning “virtual archaeology”);
• Interactive remote support for individuals with motor or sensory impairments, thereby making cultural heritage accessible to a broader, more inclusive audience.

3D Printing

3D printing technologies add another layer to the process of enhancing and safeguarding heritage, as they allow the creation of physical replicas of artefacts and archaeological sites starting from digital models. Within the MAVA Project, their principal uses include:

1. Repliche realistiche di opere d’arte o di manufatti archeologici, utili per:
   • Esposizioni museali interattive;
   • Mostre temporanee e itineranti;
   • Percorsi tattili per ipovedenti e non vedenti;
2. 2. Virtual and physical restoration: Reconstructing missing parts of an artefact or testing conservation solutions without directly intervening on the original.
3. 3. Museum merchandising: 3D-printed souvenirs or merchandise contribute to the dissemination and appreciation of heritage.
4. 4. Education: School workshops in which students handle physical models and gain first-hand familiarity with 3D printing techniques.

The typical workflow involves digital acquisition via laser scanning or photogrammetry, processing the model, and converting it into a format compatible with 3D printers. Once printed, replicas may be coloured, finished, or assembled according to display or conservation requirements. In addition to enhancing the physical and cognitive accessibility of heritage, this approach creates a 3D database useful for monitoring the condition of original artefacts over time.

Audio-Based Itineraries

One of the project’s most innovative features is the creation of audio-based itineraries in selected archaeological areas of Abruzzo. This initiative enriches the visitor’s experience through a sonic narrative that guides them around the site.

The objective is to elicit an emotional response complementing the more strictly historical and scientific content, thus offering a synaesthetic experience. By evoking ancestral sounds or those associated with daily life of the period, the “soundtrack” of the location deepens the visitor’s engagement with its history.

Web Sharing and Internationalisation

Online sharing of digital content is a key element of the MAVA Project, which aims to ensure:

• National and international dissemination, broadening its potential audience and promoting collaboration among research centres, museums, heritage authorities, and cultural institutions;
• Web platforms capable of managing large volumes of 3D data, multimedia files, and interactive pathways;
• Multiple access methods, ranging from free consultation to fee-based premium content (customised tours, ultra-high-resolution material, virtual guided visits).