DH2025 - Digital Heritage International Congress 2025

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Browsing DH2025 - Digital Heritage International Congress 2025 by Subject "3D imaging"

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    Enhancing Cultural Heritage with Generative AI: A Comparative Framework for the Evaluation of 3D Model Accuracy and Visual Fidelity
    (The Eurographics Association, 2025) Balloni, Emanuele; Paolanti, Marina; Uggeri, Jacopo; Zingaretti, Primo; Pierdicca, Roberto; Campana, Stefano; Ferdani, Daniele; Graf, Holger; Guidi, Gabriele; Hegarty, Zackary; Pescarin, Sofia; Remondino, Fabio
    The digitization of Cultural Heritage (CH) has become a vital tool for preservation and dissemination, with 3D reconstruction playing a key role in capturing intricate geometries and visual details of artifacts. While traditional methods like photogrammetry and laser scanning are effective, they often involve labor-intensive processes and struggle with complex material properties. Recent advancements in Generative AI (GenAI), particularly Large Reconstruction Models (LRMs) such as TRELLIS, offer promising alternatives for 3D generation. However, their application in CH remains underexplored. This paper introduces a novel comparative framework to evaluate the accuracy and visual fidelity of 3D GenAI models in the CH domain. Focusing on TRELLIS, the framework assesses single-view and multi-view 3D generation across five diverse CH scenes, employing both 2D (PSNR, SSIM, LPIPS) and 3D (Chamfer Distance, F-score, Accuracy) metrics. Results demonstrate superior performance for individual artifacts (e.g., Minareto, Greek Vase) compared to complex architectural scenes, with multi-view generation consistently outperforming single-view approaches. The study highlights the potential of GenAI for CH preservation while identifying challenges in large-scale reconstructions, paving the way for future hybrid methodologies and sparse-view optimizations.
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    Virtual Reconstruction and Digital Twin of the Royal Monastery of San Benito of Sahagún: A Strategy for the Documentation, Conservation, and Dissemination of Lost Heritage
    (The Eurographics Association, 2025) Gonzalez, David Marcos; López-Bragado, Daniel; José-Alonso, Jesús San; Fernández-Martín, Juan José; Martínez-Rubio, José; Alvaro-Tordesillas, Antonio; Campana, Stefano; Ferdani, Daniele; Graf, Holger; Guidi, Gabriele; Hegarty, Zackary; Pescarin, Sofia; Remondino, Fabio
    The virtual reconstruction of lost heritage ensembles has become an essential tool for the research, conservation, and dissemination of cultural heritage. This paper presents the application of advanced digital methodologies-terrestrial and aerial photogrammetry, 3D laser scanning, and 3D modeling using Blender-to the Royal Monastery of San Benito of Sahagún (León, Spain), one of the principal centers of Cluniac monasticism on the Iberian Peninsula. Through an interdisciplinary approach, a rigorous digital model has been developed that integrates historical, documentary, and geometric sources, enabling a substantiated restitution of the architectural configuration of the complex. The results highlight the potential of digital technologies not only for the restitution of lost volumetric structures but also as a basis for preventive conservation strategies, academic research, and the creation of immersive experiences aimed at both specialist and general audiences, thereby contributing significantly to the heritage valorization of the site.