Track 05 – Analysis and Interpretation

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https://diglib.eg.org/handle/10.2312/3607222

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Browsing Track 05 – Analysis and Interpretation by Subject "based rendering"

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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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    Preserving the Sacred In Situ: A Scalable Model for Hybrid Religious Heritage Documentation
    (The Eurographics Association, 2025) Schenkel, Arnaud; Muyle, Carla; Guillaume, Henry-Louis; Reyniers, Jeroen; Henderiks, Valentine; Vercruysse, Lowie; Janssens, Koen; Debeir, Olivier; Campana, Stefano; Ferdani, Daniele; Graf, Holger; Guidi, Gabriele; Hegarty, Zackary; Pescarin, Sofia; Remondino, Fabio
    An interdisciplinary approach underpins the PaReS project (Painted Relic Shrines in Situ), which explores medieval painted reliquary shrines preserved in situ in Belgian churches. Combining high-resolution 3D photogrammetry, non-invasive scientific imaging (IRR, X-ray, MA-XRF), physically based rendering (PBR), art historical and archival reasearch, the project documents and analyses these fragile, hybrid heritage objects situated at the intersection of materiality, devotion, and historical memory. A methodological contribution lies in the integration of three complementary domains-historical documentation, digital acquisition, and scientific analysis-into a reproducible, site-specific protocol. This framework has already revealed material and stylistic transformations over time. For instance, modelling of the Shrine of St Eucherius indicated phased construction, while IRR findings on the Shrine of St Livinus challenge its conventional dating. By making data accessible via open-access platform and engaging students and local communities, PaReS combines academic rigour with public outreach. Its workflow offers a transferable model for the documentation and conservation of sacred heritage.