Re-Use Of Photogrammetric Pairs Of Architectural Elements In Order To Obtain 3d Models And Orthophotographs By Means Of Sfm Techniques

This paper analyzes the possibility of re-use of photogrammetric stereopairs - originally taken so as to make line drawings (stereoplotting)- and generate 3D models with photographic textures and orthophotographs by means of the techniques called "structure from motion" (SFM). The text includes many case studies so it is possible to see the factors defining the quality of the results. Finally, some conclusions are drawn concerning the usefulness of these algorithms for the Building Archaeology.