3D Documentation of Archaeological Excavations Using Image-Based Point Cloud

摘要

Rapid progress in digital technology enables us to create three-dimensional models using digital images. Lowcost, time efficiency and accurate results of this method put to question if this technique can be an alternative toconventional documentation techniques, which generally are 2D orthogonal drawings. Accurate and detailed3D models of archaeological features have potential for many other purposes besides geometric documentation.This study presents a recent image-based three-dimensional registration technique employed in 2013 at one ofthe ancient city in Turkey, using “Structure from Motion” (SfM) algorithms. A commercial software is appliedto investigate whether this method can be used as an alternative to other techniques. Mesh model of the somesection of the excavation section of the site were produced using point clouds were produced from the digitalphotographs. Accuracy assessment of the produced model was realized using the comparison of the directlymeasured coordinates of the ground control points with produced from model. Obtained results presented thatthe accuracy is around 1.3 cm.