Evaluating the Relational Parameters in 3D Reconstruction of Archaeological Objects using Photogrammetry (original) (raw)

There exist many archeological objects which are broken in pieces. It is always important to find the neighbouring pieces so that different parts of the object can be put together and the original object reconstructed. Direct evaluation of broken objects has several disadvantages, such as being difficult and time-consuming. As an alternative, indirect techniques like photogrammetry and laser scanning can be applied, in which measurements of object pieces can be made and the overall shape of the object constructed by inspection of the relation between models of object parts. When compared with direct techniques, such methods enjoy being fast and non-contact so leading to the increased safety of the objects under reconstruction. In this project, photogrammetry is used to extract edges of the broken parts. The mathematical relations between the edges are then examined, the neighbouring parts are found and the model of the object is formed. This paper studies various parameters each of which defines some mathematical relation between parts of an object. The experiments carried out show that the radius of curvature is a suitable parameter which can be used to find the neighbouring pieces of the modelled object. The results show enough accuracy for 3D modelling of the object with the specified dimensions in our experiments. But in order to verify the validity of this method, it should be applied to a wide range of archaeological objects.