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oa Comparison of Modern 3D Modelling Methods: The Case Study of the A. Sheptytskyi Monument
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, International Conference of Young Professionals «GeoTerrace-2025», Oct 2025, Volume 2025, p.1 - 5
Abstract
The study presents a comparative analysis of three modern methods for creating three-dimensional models of objects in geodetic practice: terrestrial laser scanning, classical photogrammetry, and the innovative 3D Gaussian Splatting technique. The research was conducted on the example of the monument to Andrey Sheptytskyi in Lviv, Ukraine. The aim of the work was to evaluate the effectiveness, accuracy, and feasibility of these methods under real conditions. The terrestrial laser scanner Trimble TX6 was used to collect high-precision reference data, while aerial imagery was obtained using a DJI Mavic 3E drone equipped with an RTK module. The collected data were processed in Trimble RealWorks®, Pix4Dmapper, and Luma AI software, enabling the implementation of Gaussian Splatting. A comparative analysis of accuracy was performed in the CloudCompare environment. The results showed that laser scanning provided the highest accuracy, confirming its role as the reference method, though at the cost of significant time and financial resources. Classical photogrammetry demonstrated lower accuracy but remained practical and cost-effective for large-scale surveys. Gaussian Splatting achieved higher precision than photogrammetry while maintaining high visual realism and significantly reducing hardware requirements, highlighting its potential as an accessible alternative. The conducted study demonstrated the advantages and limitations of each method, proving that the choice of technology depends on the available resources and accuracy requirements. The findings confirm the growing relevance of hybrid approaches that balance precision with efficiency in applied digital geodesy.
