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San Francisco, CA, 94104
Key research themes
1. How do digital photogrammetry and laser scanning enhance the precision and preservation of 3D epigraphic documentation at macro and micro scales?
This research area investigates the application of 3D imaging technologies such as photogrammetry and terrestrial laser scanning (TLS) in capturing detailed, high-resolution digital records of epigraphic and rock art sites. It is critical for overcoming the limitations of traditional 2D documentation, enabling accurate monitoring, analysis, and conservation of fragile archeological inscriptions across spatial scales from entire monuments to millimetric details.
Key finding: Demonstrates the use of photogrammetry combined with focus stacking to successfully record millimetric and submillimetric details of prehistoric petroglyphs and paintings at field archeological sites. Photogrammetry’s... Read more
Key finding: Presents an adapted 3DScaMITE methodology using 3D terrestrial laser scanners to digitize petroglyphs in situ within open-air museums, demonstrating that TLS can create high-accuracy 3D models that not only document... Read more
Key finding: Develops a cost-efficient Structure from Motion (SfM) photogrammetry workflow adapted to challenging conditions (spatial constraints, low lighting) of megalithic monuments with rock art. The methodology produces... Read more
Key finding: Statistically compares terrestrial laser scanning (TLS) and photogrammetry (both conventional and SfM-based) against total station measurements for cultural heritage site documentation, concluding that both generate... Read more
Key finding: Critically assesses image-based 3D reconstruction techniques against traditional 2D methods (tracing and rubbing) for documenting South Scandinavian rock carvings. It finds that 3D image-based reconstructions offer an... Read more
2. How can 3D digitization contribute to archaeological conservation, restoration, and public dissemination of epigraphic heritage?
This theme examines how three-dimensional digital documentation technologies not only serve scientific research but also facilitate conservation planning, restoration accuracy, virtual reconstruction, and enhanced public engagement. Low-cost, user-friendly 3D modalities enable the creation of digital twins of archaeological artifacts and sites, enriching heritage management and education.
Key finding: Showcases the practical application of photogrammetry and UAV-based imaging to digitally document Moroccan cultural heritage sites, supporting restoration efforts by providing accurate geometric data for damage assessment.... Read more
Key finding: Reviews the complementary strengths of laser scanning and digital photogrammetry for cultural heritage documentation, emphasizing the value of integrated approaches to produce metric accurate textured 3D models. It highlights... Read more
Key finding: Demonstrates large-scale 3D digitization of the Palace of Knossos combining photogrammetry, UAV imagery, and laser scanning to create high fidelity 3D models suitable for augmented reality (AR), virtual reality (VR), and... Read more
Key finding: Develops a digital epigraphy toolbox offering cost-effective 3D digitization of inscriptions (ektypa) and multi-modal visualization modes including photorealistic 3D views and fingerprint/depth maps. The project enables... Read more
Key finding: Presents preliminary outcomes of a 3D modeling project documenting Roman funerary inscriptions of the Vadinienses through digital photogrammetry. The open-access virtual museum aims to preserve and disseminate the... Read more
3. What novel visualization techniques in 3D digital epigraphy improve artifact interpretation and readability beyond traditional 2D approaches?
This thread explores advances in stereoscopic and photometric visualization that provide enhanced perception of surface geometry and inscriptions, aiding detailed epigraphic analysis. Beyond generating 3D geometric models, the techniques focus on producing interpretable visual encodings to reveal subtle features, improve contextual understanding, and support collaborative scholarship.
Key finding: Introduces morphological residual models and Virtual-Polynomial Texture Maps to enhance visualization of weathered or eroded rock engravings from 3D scan datasets. These visualization techniques extract hidden details... Read more
Key finding: Proposes the generation of stereoscopic visualizations from existing 3D models using virtual cameras to create depth perception-enhanced images of archaeological artifacts. This approach employs open-source tools like Blender... Read more
Key finding: Presents an open-source photometric stereo suite that produces 3D models combining volume accuracy and color reliability, enabling separation of relief and color information. This methodology supports multi-scale... Read more
Key finding: Explores digital photogrammetry workflows to produce detailed 3D models that capture both the form and stylistic nuances of Classic Maya inscriptions, overcoming limitations of traditional 2D photographs and sketches. These... Read more
Key finding: Addresses methodological challenges in digitizing inscriptions across diverse scripts and languages, advocating for common frameworks for data modeling and encoding. It emphasizes how computational approaches not only... Read more