What’s georeferencing? How it works, and who uses it
Blog post from Felt
Georeferencing is a critical process in geographic information systems (GIS) that involves assigning real-world geographic coordinates to raster data, such as aerial photographs or satellite imagery, to enable accurate placement and alignment within a coordinate system. This technique involves selecting recognizable ground control points on a raster, linking them to their true locations on a map, applying transformations to align the raster, and resampling to create a new, spatially accurate output file. Georeferencing is essential for various industries, including environmental science, urban planning, agriculture, and business intelligence, as it allows for the integration of imagery with other spatial datasets for analysis. It differs from geocoding, which converts text-based locations into coordinates. Tools like Felt facilitate the use and analysis of georeferenced data by allowing users to upload and manipulate these datasets within an interactive platform, supporting collaboration and spatial analysis.
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