================
Data Acquisition
================

Image acquisition is performed using a combination of two possible methods:

* **Drone**: the acquisition is performed using a piloted drone. The advantages are the greater control over the acquisition trajectory, ensuring the whole site is covered with enough resolution. The main drawback is the requirement to have a person on-site performing the acquisition, which increases costs.
* **Crane Camera**: the acquisition is performed using a camera device mounted on the crane hook. The device operates autonomously and has a battery life of 1 week, reducing the number of required interventions. The main drawback is that the acquisition trajectory is constrained by the crane motion while in regular operation.

.. figure:: images/FS_1_picture_2.jpg
   :align: center
   
   Image acquired using a crane mounted camera.