Using 3-D photogrammetry in the field - an example from Kvåle Sogndal, Norway by Cecilia Falkendal, Ingebjørg Njos Storvik and Kevin Wooldridge (Universitetsmuseet i Bergen)
Kevin Wooldridge, Cecilia Falkendal, Ingebjørg Njos Storvik
Abstract During a small excavation project at Kvåle Sogndal in the Spring of 2015, archaeologists from the Universitetsmuseet i Bergen used a pole camera and Agisoft Photoscan 'structure through motion' software as a tool for basic site data capture. This was utilised along with the Intrasis archaeological GIS programme to record a complicated structural sequence of medieval and later buildings, associated with a possible church and later forming part of a farm complex. Processing of the geo-referenced 3-D orthoimages was achieved on site by the excavation team and the results used for the detailed recording of the structures and as the annotated record for entry into the site GIS. The geo-referenced orthoimages served as the basic on-site horizontal site plan and also the vertical profile record. This paper will detail the methodology used for the initial data capture and on-site processing and the practical applications of onsite 3-D imaging.
