Stereo photogrammetry
From a stereo-pair of images:
![](https://geotechlab.dicea.unipd.it/wp-content/uploads/2019/01/StereoPhotosOfABox.jpg)
It is possible to obtain a 3D reconstruction of the object (Gabrieli, Baracaro E.)
![](https://geotechlab.dicea.unipd.it/wp-content/uploads/2019/01/3DStereoReconstructionOfABox.jpg)
![](https://geotechlab.dicea.unipd.it/wp-content/uploads/2019/01/3DStereoReconstructionOfABoxAndCameraPosition.jpg)
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).
![](https://geotechlab.dicea.unipd.it/wp-content/uploads/2019/01/SoilNailingLab3DReconstruction.jpg)