Digital Capture of Collection Objects: A Comparison of Low-Cost and High-End Technologies Using the DSM Collection as an Example

Dissertation Title: “Difficult Digitization: Materiality of the Digital Object”

This research project investigates how museums and cultural institutions can create high-quality 3D models of their objects even with limited budgets. A particular focus is placed on waterlogged wood, which, due to its sometimes unstable surface, poses unique challenges for digitization. The study examines the Bremen cog (conserved waterlogged wood), the Weser cargo barges (non- conserved waterlogged wood), and a ship model as a high-resolution reference standard.

The core objective is to evaluate various cost-effective 3D capture methods—such as photogrammetry using free software solutions, a DSLR camera, and smartphones—and compare them with high-end technologies. In addition, several smartphone apps and a 3D handheld scanner are employed. The highly precise digitalized ship model serves as a reference to directly assess accuracy, texture quality, and the overall capture effort.

Special emphasis is placed on the advantages of detailed digital documentation for conservation and restoration, such as precise damage mapping that enables the monitoring of material changes over time. Furthermore, the resulting 3D models are intended for museum outreach purposes, including online platforms, virtual exhibitions, and the long-term archiving of culturally significant objects. Ultimately, the systematic comparison of low-cost and high-priced methods aims to create a practical guide, particularly useful for smaller institutions. In the long term, this research project contributes to the development of innovative and sustainable strategies for preserving our cultural heritage.