Our workflow of processing of 3D volume, geometric, and feature data consists of the following steps: 1.    Preprocessing (filtering, resampling, denosing) of 3D volume data (here: result of CT) 2.    Octree-based, compressed representation of isosurface and per-vertex data (EXA file format) 3.    Triangulation of isosurface, implementing a manifold dual marching cube algorithm 4.    Postprocessing (smoothing) and feature extraction of 3D polygon data (here: isosurface) 5.    Interactive 3D visualization of isosurface and feature data (option: stereoscopic rendering)

All methods are implemented in C, taking advantage of multi-core parallelization in OpenMP, and applying OpenGL4 for 3D rendering purposes. GTK3 is used for abstraction of the user interface. The modules are tested in Linux (Ubuntu) and Windows environments (MSYS2 and MS Visual Studio).

An application example and data set is published here: Michel, Cécile, Schroer, Christian, Olbrich, Stephan, Ehteram, Samaneh, & Beckert, Andreas. (2024). AO 8295 (X-Ray Tomography 3D data of an Enveloped Clay Tablet, Louvre Museum, Paris) [Data set]. http://doi.org/10.25592/uhhfdm.14776

An video animation generated by EXAVIS42 is published here: Olbrich, Stephan, & Beckert, Andreas. (2024). Non-invasive, virtual unpacking of enclosed cuneiform - 3D reconstruction and visualization of clay tablets based on data acquired by portable micro-CT scanner. http://doi.org/10.25592/uhhfdm.14772

Our work will be published here: Olbrich, S., Beckert, A., Michel, C., Schroer, C., Ehteram, S., Schropp, A., Paetzold, P.: Efficient Analysis and Visualization of High-Resolution Computed Tomography Data for the Exploration of Enclosed Cuneiform Tablets. LDAV 2024 – 14th IEEE Symposium on Large Data Analysis and Visualization, October 13 – 18, 2024, St. Pete Beach, Florida (accepted).

The project "Reading Closed Cuneiform Tablets Using High-Resolution Computed Tomography" (RFA09) was funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under Germany's Excellence Initiative - EXC 2176 "Understanding Written Artefacts: Material, Interaction, and Transmission in Manuscript Cultures", project no. 390893796. The research was conducted within the scope of the Centre for the Study of Manuscript Cultures (CSMC) at Universität Hamburg.