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A Collaborative Virtual Walkthrough of Matera's Sassi Using Photogrammetric Reconstruction and Hand Gesture

Nicla Maria Notarangelo¹, Gilda Manfredi², Gabriele Gilio²

¹School of Engineering, University of Basilicata, 85100 Potenza, Italy.

Journal of Imaging

|April 27, 2023

Summary

Collaborative virtual walkthroughs offer an effective way to explore cultural heritage sites like the Sassi of Matera. This technology uses photogrammetry and gesture recognition for an immersive educational experience.

Keywords:

collaborative virtual learning environment deep learning educational and cultural heritage applications hand gesture recognition (HGR)human–computer interaction photogrammetry virtual walkthrough

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Area of Science:

Digital Heritage
Virtual Reality in Education
Cultural Heritage Informatics

Background:

The COVID-19 pandemic highlighted the need for remote collaborative tools in education and cultural heritage.
Virtual walkthroughs enable exploration and interaction with global historical sites.
Developing realistic and user-friendly virtual applications presents significant challenges.

Purpose of the Study:

To investigate the potential of collaborative virtual walkthroughs as an educational tool for cultural heritage.
To focus on the Sassi of Matera, a UNESCO World Heritage Site, as a case study.
To develop an immersive and accessible virtual walkthrough application using advanced technologies.

Main Methods:

Development of a virtual walkthrough application using RealityCapture and Unreal Engine.
Utilizing photogrammetric reconstruction for accurate site representation.
Implementing deep learning-based hand gesture recognition for intuitive user interaction.

Main Results:

A test with 36 participants yielded positive feedback on the application's effectiveness, intuitiveness, and user-friendliness.
The virtual walkthrough provided precise representations of the complex historical site.
The application successfully promoted both tangible and intangible aspects of cultural heritage.

Conclusions:

Collaborative virtual walkthroughs are a valuable resource for architecture, cultural heritage, and environmental education.
The developed application demonstrates the potential for immersive and accessible heritage education.
Future work should focus on site expansion, performance enhancement, and learning outcome assessment.