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Comparison of Photogrammetric Reconstruction Methods: The Case of an Archaeological Site With Two Software and Geovisualization Modelling Techniques
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Author(s): Kyriaki A. Tychola (MLV Research Group, Department of Informatics, Democritus University of Thrace, Kavala, Greece), Eleni Vrochidou (MLV Research Group, Department of Informatics, Democritus University of Thrace, Kavala, Greece)and George A. Papakostas (MLV Research Group, Department of Informatics, Democritus University of Thrace, Kavala, Greece)
Copyright: 2025
Pages: 58
Source title:
Applying Remote Sensing and GIS for Spatial Analysis and Decision-Making
Source Author(s)/Editor(s): Mouhcine Batchi (University of Ibn Tofail, Morocco)and Adil Moumane (University of Ibn Tofail, Morocco)
DOI: 10.4018/979-8-3693-6452-9.ch004
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Abstract
Digital photogrammetry is a passive contactless, easy, and low-cost 3D scanning technique, that provides effective and powerful tools for 3D realistic reconstruction, as well as precise and high-resolution models based on Structure from Motion (SfM). Photogrammetry leverages data obtained by Unmanned Aerial Vehicles (UAVs), which have reached significant maturity in the sense that they offer a fast, affordable, and effective method for the acquisition of high-resolution geospatial information and image block (nadir and oblique) with high geometric and temporal resolutions. Data are processed by different available commercial or open-source photogrammetric software aiming at 3D reconstruction modelling. Then, the 3D-generated models can be further processed for quantity assessment by applying geometrical measurements. In addition, models through various geovisualization techniques can be used for realistic representations of the physical world. The current research investigates 3D model reconstruction by applying two photogram-metric software, Agisoft Metashape and 3DF Zephyr, in an example of an archaeological site in Greece focusing on the performance of each approach. Moreover, different distance and noise metrics are applied to compare and geometrically assess the 3D dense point clouds, meshes and Digital Surface Models (DSMs). Furthermore, traditional, and modern geovisualization forms of 3D models are discussed towards approaching the 3D models' representation holistically, aiming to provide guidelines to researchers in this field through a comprehensive workflow from data acquisition to manipulation and capabilities combined with other fields such as Computer Vision. Finally, open issues and future research directions are highlighted as a stimulus to further investigations.
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