Digital technologies offer an effective solution for documenting and managing complex three-dimensional morphologies, particularly in the context of Underground Built Heritage (UBH). Our research explores novel digitization strategies by employing various technological tools for 3D scanning. We focus on a selected case study: the Grotta di San Michele Arcangelo. Range-based techniques using LiDAR-UAV (Light Detection and Ranging set in Unmanned Aerial Vehicles) were used for the cave’s exterior, integrated with SLAM (Simultaneous Localization and Mapping) technology was employed for the cave’s interior and close-range photogrammetry techniques captured intricate wall decorations. The results yielded precise geometric information crucial for subsequent three-dimensional modelling of architectural and natural spaces. Furthermore, these techniques were integrated to enhance information management, facilitate conservation efforts, and update existing documentation. The resulting comprehensive database is an essential tool for understanding, monitoring, and effectively managing these intricate underground environments.

Lorena Centarti

Carla Ferreyra

Caterina Gabriella Guida

Marco Limongiello

Barbara Messina

ACTA IMEKO

The main goal of this journal is the enhancement of academic activities of IMEKO and a wider dissemination of scientific output from IMEKO TC events. High-quality papers presented at IMEKO conferences, workshops or congresses are seleted by the event organizers and the authors are invited to publish an enhanced version of their paper in this journal. The journal also publishes scientific articles on measurement and instrumentation not related to an IMEKO event.

The primary goal of the journal Acta IMEKO is to enhance the academic activities of IMEKO and to facilitate a broader dissemination of scientific outputs from IMEKO Technical Committee events. High-quality papers presented at IMEKO conferences, workshops, or congresses are selected by the event organizers, and authors are invited to publish an enhanced version of their papers in this journal. Additionally, the journal publishes scientific articles on measurement and instrumentation that are not related to IMEKO events.

《Acta IMEKO》期刊的主要目标是提升IMEKO的学术活动，并更广泛地传播IMEKO技术委员会活动的科学成果。高质量的论文由IMEKO会议、研讨会或大会的组织者挑选，作者被邀请在本期刊上发表经过改进的论文版本。此外，期刊还发表与IMEKO活动无关的测量和仪器方面的科学文章。

Documentation and management of complex 3D morphologies through digital technology

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