Title: Define orthorectification.
Course: Geospatial Technology II (21058-II) > Section: Working with Raster Data and RS

Definition should include the process of removing the effects of image perspective (tilt) and relief (terrain) for the purpose of creating a planimetrically correct image.

Process/Skill Questions:

- How does orthorectification use elevation data to correct terrain distortion in aerial or satellite imagery?
- Why can an orthorectified image be used to measure true distances?