Centre for Digital Heritage meeting 2018:
3D archives, (re)use and Knowledge production, Lund 18–20 June 2018
Integrating 3d Models and GIS for Digital Cultural Heritage
Recent advances in technology have helped make the capture and modelling of 3D digital cultural objects increasingly affordable. Ever growing numbers of cultural institutions have been digitizing their digital artefacts and sites. Regards the availability of 3D geometric modelling methods and 3D file formats, there are hundreds to choose from. However, an extremely challenging task is to identify the most appropriate 3D geometric modelling method and file format for the specific purposes of digital cultural heritage. In order to overcome those challenges, this paper first summarizes the most-common 3D geometric modelling methods such as constructive solid geometry, non-uniform rational B-splines, triangle meshes, and discusses their advantages, disadvantages and their typical application in the digital cultural heritage domain. Second, various 3D file formats are systematically analysed and discussed, with particular reference to architecture, to archaeology and to heritage studies. Third, future possibilities of 3D file formats and their potential for linking with Geographic Information Systems (GIS) and geospatial databases are outlined. What are the successful exemplars but also major challenges for linking GIS, 3D models and heritage aims? Where do these modelling methods, formats, aims and disciplines converge or diverge? Would such combinations create major problems for archives?
Keywords: 3D geometric modelling, 3D file formats, 3D archives, digital cultural heritage
Ikrom Nishanbaev, Erik Champion, Hafizur Rahaman, Mafkereseb Bekele