Orthophotograph (Orthophoto)
An aerial photograph that has been geometrically corrected (orthorectified) so that the scale is uniform and can be used as a map. Orthophotos are foundational for accurate spatial analysis and base mapping.
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How do you define an Orthophotograph (Orthophoto)?
An orthophotograph, also known as an orthophoto, is a satellite or aerial image that has been mathematically rectified to have a consistent scale, removing distortions from sensor perspective, terrain relief, and camera tilt. An orthophoto, as opposed to a standard photograph, provides an exact representation of the Earth's surface, allowing for the direct measurement of areas, angles, and distances.
Orthophotos are extremely useful in GIS, urban planning, environmental monitoring, and land surveying because they combine the visual detail of a photograph with the spatial precision of a map. They are dependable base maps that can be used to perform accurate spatial studies and overlay other spatial data.
Related Keywords
Using drones or airplanes to take high-resolution aerial photos and then processing them to create geometrically corrected, map-accurate orthophotos is known as aerial orthophoto mapping. These maps are useful for land surveying, agriculture, urban planning, environmental monitoring, and infrastructure development because they offer accurate, scaled representations of the Earth's surface.
Aerial photography that has been spatially aligned with actual coordinates to enable precise use in maps and GIS applications is known as georeferenced aerial imagery. This guarantees that every pixel points to a distinct place on Earth, which makes it useful for infrastructure construction, agriculture, urban planning, and environmental monitoring.
Aerial or satellite photos that have been geometrically adjusted (orthorectified) to ensure that the scale is consistent across the image are referred to as orthophoto GIS data. Orthophotos can be used to create exact maps because, in contrast to ordinary photographs, they precisely depict the Earth's surface. They are extensively used in Geographic Information Systems (GIS) for infrastructure development, land use analysis, urban planning, and environmental monitoring.
An aerial image that has been geometrically adjusted, or "orthorectified," to guarantee consistent scale and accurate geographic information is known as high-resolution orthophotography. It removes distortions from terrain or camera tilt, which makes it perfect for mapping, land surveying, urban planning, and environmental monitoring. This is in contrast to raw aerial images.