It is an image that has been orthorectified or whether it has been geometrically corrected to eliminate distortions and coincide with a parallel projection plane, thus allowing the use of two-dimensional measurements in various CAD and GIS software.
The advantage of including a geo-referenced orthophoto in a project is the richness of detail that can be obtained in addition to the normal topographic survey.
Example of orthophotography WEB online
Open the image for online viewing where you can browse and zoom.
Image – Ortophoto on QGIS for Tematic maps
Georreferenced point cloud for elevation extraction, cadastrial maps, streets and trees.