What challenge or opportunity did your project address, and what activities, methods, or outcomes have been achieved so far?
This project addressed the global challenge of producing high-quality 3D documentation for complete heritage buildings by employing a frugal, low-cost methodology designed to overcome severe hardware constraints. A specific methodological challenge involved developing a comprehensive digitization workflow utilizing strictly open-source tools, notably AliceVision Meshroom. To validate this frugal approach, the resulting models were systematically compared against those generated by Agisoft Metashape, a leading closed-source alternative. The primary outcomes include a photorealistic, architecturally accurate, and geometrically complete 3D model encompassing both the interior and exterior of the Capilla de Siecha. Furthermore, the project delivered the design and implementation of a universal Data Acquisition and Processing Management System (DAPMS) to ensure data interpretability, support subsequent HBIM development, and guarantee long-term accessibility. This database strategy was accompanied by a complementary suite of custom Python plugins for Meshroom, specifically engineered to resolve major computational bottlenecks when processing massive datasets. Finally, this research strengthens the theoretical foundations of the digital cultural heritage field through concepts such as accessibility, frugal innovation, and complexity-quality management. Both the elaborated theory and the frugal methodology are highly transferable to diverse contexts globally, ultimately aiming to democratize digitization and preserve as much tangible heritage as possible.
What key insights, lessons learned, or innovations emerged from your work that could be valuable to others working in the fields of cultural heritage and 3D technologies?
The core insight of this research is that frugal methodologies are highly effective and can potentially produce models of exceptional quality with standard hardware, provided that best practices are strictly implemented to manage complexity, ensure interoperability, and apply ingenious technical solutions. The primary innovation is the development of a resilient photogrammetric pipeline alongside practical tools such as the DAPMS and custom plugins for Meshroom. Furthermore, the project proposes innovative theoretical foundations regarding project complexity and quality management. Ultimately, these methodological and theoretical advancements drive efficiency, effectiveness, and scientific transparency in cultural heritage documentation
How could your project’s results, expertise, tools, datasets, or approaches contribute to and benefit the broader Time Machine Organisation network, including opportunities for collaboration, knowledge exchange, or reuse by other members?
This project offers immediate and reusable technical solutions for the broader TMO network of experts. The custom plugins for automated data chunking and headless format conversion can be directly integrated by other institutions facing similar hardware or budget constraints. Furthermore, the frugal methodology and the universal database logging strategy within the DAPMS provide a scalable blueprint to democratize digital heritage documentation, integrating the latest advancements in tangible heritage digitization literature. Offering these open source tools and methodologies to the network fosters immediate collaboration and ensures that future historical reconstructions remain accessible, transparent, and scientifically rigorous.