Orthophoto, also known as orthoimage, is an aerial or satellite image that has been geometrically corrected to eliminate distortion and provide a map-like representation of the Earth’s surface. This process involves removing the effects of terrain relief, camera tilt, and other distortions so that the resulting image has a uniform scale throughout.
Orthophotos are used in many fields such as mapping, surveying, land-use planning, and environmental monitoring. They are typically used as a base map for geographic information systems (GIS), where the data can be overlaid with other information such as road networks, building footprints, and land-use classifications.
Orthophotos are created by processing aerial or satellite imagery using specialized software that can correct for distortions caused by the curvature of the Earth’s surface, camera lens distortion, and terrain relief. The result is a map-like image that can be used for accurate measurements and analysis of features on the Earth’s surface.