1. ISTCGCAP
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  3. Volume 98, 2023
  4. 3d model of Medova cave, Lviv

3d model of Medova cave, Lviv

ISTCGCAP.
2023;
Volume 98, 2023, Number 98
: 32-41
https://doi.org/10.23939/istcgcap2023.98.032
Received: October 15, 2023
Authors:
  1. Ihor Bubniak
  2. Mariia Oliinyk
  3. Serhiy Tsikhon
  4. Yuriy Golubinka
  5. Taras Marko
1
Department of Engineering Geodesy, Lviv Polytechnic National University
2
Department of Engineering Geodesy of Lviv Polytechnic National University
3
Ivan Franko National University of Lviv
4
General Commission of Survey, Saudi Arabia, Lviv Polytechnic National University
5
Department of Engineering Geodesy, Lviv Polytechnic National University

The purpose of this article is to present and provide a detailed analysis of the 3D model of the Medova Cave in Lviv, created using laser scanning technology. The main objectives include revealing the accuracy and detailing the obtained model, as well as determining its potential applications in various fields such as geological research, scientific exploration, cultural heritage, and tourism. Additionally, the article aims to emphasize the importance and advantages of using laser scanning for creating precise and realistic 3D cave models, opening new possibilities for the study and preservation of natural unique formations. Method. The article describes the methodology used to create a 3D model of the Medova Cave, which involves several key steps. Firstly, a thorough reconnaissance of the cave is conducted to identify technical and logistical aspects such as temperature, humidity, movement restrictions, and lighting that are necessary for the scan. Next, ground-based laser scanning is employed, proving effective in conditions of complete darkness and limited space, to ensure accurate data collection regarding the cave's geometry. Reflective markers are strategically placed inside the cave before scanning, facilitating efficient scanning and alignment of scans. Specialized equipment such as GNSS receivers (Trimble R7) and ground-based laser scanners (Faro Focus 3D 120) are utilized for data collection. Software tools like Faro Scene are used for stitching together scans into a unified 3D point cloud model during data processing. Finally, the accuracy of marker connections is analyzed to ensure high-quality registration, and the 3D model is constructed. Detailed 3D models, including textured models and cross-sections for visualizing the internal structure of the cave, were constructed using software such as Move. Results. The research on the Medova Cave, employing ground-based laser scanning, yielded an accurate and detailed 3D model of the cave. This model opens new perspectives for geological and geomorphological studies, tourism development, and cultural heritage preservation. The use of advanced scanning technologies allowed for a comprehensive representation of the cave's geometric features, considering its complex structure and varied dimensions. Scientific novelty and practical significance. The creation of the 3D model of the Medova cave using laser scanning signifies progress in cave geometry studies. The innovation lies in the utilization of advanced laser scanning technologies to ensure a detailed representation of the cave's geometric features, accounting for its complex structure and diverse dimensions. The novelty also lies in the development of a data collection and processing strategy in conditions of complete darkness and limited cave space, resulting in an accurate and realistic 3D model. Practically, the 3D model of the Medova Cave serves as a crucial tool for geological and geomorphological research and the exploration of unique natural formations. The model opens new opportunities for tourism development, where virtual cave exploration can provide a unique experience for visitors. Creating this 3D model is a significant step in preserving and documenting cultural heritage, contributing to the scientific and cultural development of the region, and providing access to unique objects for researchers and the public.

laser scanning
3D modeling
research
Medova cave
geometry caves
geodetic technologies
tourism
geomorphology
digital documentation of the cave
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