Giacomo LANDESCHI | Björn NILSSON | Arne SJÖSTRÖM
(Lund University, Lund, Sweden)
Keywords: 3D archaeology, GIS, photogrammetry, multibeam data
This paper seeks to explore innovative ways of employing imaged-based 3D modelling techniques for investigating a portion of the Early Holocene submerged landscape in Southern Sweden. As part of a recently-funded research project named ‘Blue Archaeology’, main objective of our research team is to take advantage of an entirely-three-dimensional dataset to map in a 3D GIS platform, sites dating to the Mesolithic and to put them in relation to the surrounding maritime environment to analyse and monitor their state of preservation in a diachronic perspective. To reach this goal, a geodatabase data structure needs to be created to collect multibeam sonar datasets, extracted DEMs, textured 3D surface models. The multiscale nature of this project will allow to address specific problems related to the representation of single sites and to put them in relation with the wider submerged landscape where significant mechanical and biological actions threaten the preservation of those sites. Image-based 3D modelling constitutes an interesting option to deliver models with sufficient spatial resolution which can be used to conduct a careful and constant assessment of the surface erosion. Some preliminary results of this study will be presented with a special focus on the methodological implications raised in connection to the problematic conditions of data acquisition experienced in an underwater environment.
Relevance conference / Relevance session:
It provides innovative way of using 3D technology in archaeology
Multi-beam data are used in combination with image-based 3D modelling-derived data to better assess the preservation of submerged sites.
- Landeschi, G., Nilsson, B. & Dell’Unto, N. (2016).
- Holmlund, J., Nilsson, B., & Rönnby, J. (2017).