Photogrammetry Stereo photogrammetry From a stereo-pair of images: It is possible to obtain a 3D reconstruction of the object (Gabrieli, Baracaro E.) With the same principle, we obtained a 3D reconstruction of a lab-scale soil-nailing slope and of its strain evolution during loading (Gabrieli, Marcanti). 3D reconstruction of the face of a slope sustained with soil nailing technique.