ortofotoaineistoa

Ortofotoaineistoa, which translates to "orthophoto material" or "orthophoto data" in English, refers to a collection of orthorectified aerial or satellite imagery. Orthorectification is a process that corrects geometric distortions caused by camera tilt and terrain relief in standard aerial photographs. This correction results in an image that is geometrically as accurate as a map, meaning that distances and areas can be measured directly from the image, and it can be used as a basis for mapping.

The creation of ortofotoaineistoa involves combining aerial or satellite photographs with elevation data, typically from a Digital Elevation Model (DEM). The DEM is used to remove the distortions caused by the topography of the land. The output is an orthophoto, which is a photograph in which perspective has been removed and uniform scale has been applied. These orthophotos are then often mosaicked together to form a continuous, seamless dataset covering a larger area.

Ortofotoaineistoa is a valuable geospatial data product used in a wide range of applications. It serves as a highly accurate and up-to-date base map for various planning and management tasks. Common uses include land surveying, urban planning, environmental monitoring, agricultural management, disaster response, and infrastructure development. Its ability to represent the Earth's surface with both photographic realism and map-like geometric accuracy makes it an indispensable tool for professionals working with spatial information.