Geocoded Data

Producer Field Guide

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Producer Field Guide
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Geocoding, also known as georeferencing, is the geographical registration or coding of the pixels in an image. Geocoded data are images that have been rectified to a particular map projection and pixel size.

Raw, remotely-sensed image data are gathered by a sensor on a platform, such as an aircraft or satellite. In this raw form, the image data are not referenced to a map projection. Rectification is the process of projecting the data onto a plane and making them conform to a map projection system.

It is possible to geocode raw image data with the ERDAS IMAGINE rectification tools.

See Map Projections for information on map projections. See Rectification for information on geocoding raw imagery using ERDAS IMAGINE.