Orthophoto is the products obtained by re-arranging the aerial photographs containing the 3D coordinate (x, y, z) information of the earth by eliminating the rotation and height errors, and purifying them from scaled and existing distortions.
Orthorectification is the process of transforming aerial photographs obtained by UAV, satellite and aircraft into a vertical projection by correcting the errors that occur due to factors such as the platform, height, rotation, etc.. Orthophotos, which are the images obtained by this process, are needed in all fields dealing with surveying, deformation, agriculture, engineering applications, urbanism, mining, search and rescue, defense and earth sciences..
Today, the usage areas of orthophotos have increased a lot. They make a great contribution to the socio-economic development of a city, region or country. Orthophotos It is frequently used in the need for high resolution base maps, spatial planning of the city (road, infrastructure works, environmental protection), spatial analysis, map making, displaying land use and many other areas.