ABSTRACT

The process of georeferencing digital images, or georectification, aligns the images to locations on the Earth’s surface. Common georectification techniques include the process of rubber sheeting and the use of polynomial coordinate transformation equations. These techniques are useful for establishing geographic coordinates, as well as reducing alignment errors that could occur when using multiple data sets. This chapter demonstrates the use of an image-to-image registration process, through the selection of ground control points, to perform both a rubber-sheeting and a polynomial georectification procedure.