Digital photogrammetry: Three-dimensional documentation technique based on the computation of 2D values contained in photographs.

Drone: Unmanned aerial element, operated from the ground.

Fixed Wing: A type of drone whose main flying element is the possession of a large wing.

Multi-rotor: A type of drone equipped with propellers that rotate in different directions to fly the device.

Homologous Points: Positioned and repeated elements in photographs that are endowed with coordinates (X,Y,Z) and represented.

Point cloud: A collection of vertices represented by homologous points that mimic the shape and volume of the captured element.

Polygon mesh: Surface created by joining the vertices of the point cloud.

Lens: Circular glass attached to the lens that lets light into the camera.

Focal Length: Distance measured in mm between the camera lens and the sensor, usually engraved on the lens barrel.

Wide Angle Lens: Lens with short focal length and wide field of view.

Fisheye Lens: A wide-angle lens that takes 180° of photography and uses its large visual distortion to create desired effects in photography.

Zoom lens: Lenses that allow variation of focal length through the use of physical zoom, the most widely used lenses in the world.

Fixed lens: Lens that allows only one focal field and therefore cannot make physical zoom adjustments.

ISO: Adjustment option that allows the brightness of the light to be increased in the dark, by altering the light sensor.

Camera Aperture: Lens opening and closing adjustment option used to regulate the light passing through the lens.

Shutter speed: Adjustment option on the mechanism that allows opening and closing the shutter at desired times and repetitions..

Augmented Reality: Technologies that add and reproduce virtual three-dimensional information about reality through the use of mobile devices such as tablets or smartphones, among others.

Virtual Reality: Technologies that favour an immersive experience of object simulation and a three-dimensional world.

3D Printing: Technique of creating elements using a 3D printer by loading a digital design and obtaining the physical design.

BIM: A methodology consisting of a set of processes used in construction and engineering through the use of a shared virtual model to monitor construction work.

Digital Twin: Digital representation of a building, with the visual and physical characteristics of the original.

Geotechnics: Discipline that uses scientific methods for the interpretation and knowledge of soils.

MDS: Three-dimensional model that processes all the elements that make up the captured information.

DTM: A three-dimensional model that processes and focuses its analysis on the bare earth’s surface.