Understanding the solution for simple math models

The computation of the simple models is done automatically as you add ground control points (GCPs) to the project. The image is not manipulated at this point. The simple math model uses the GCPs to calculate a transformation that will warp the raw image to fit the ground coordinates. Since the math model calculates a solution for each image, no tie points are used.

Rational Functions: The rational functions math model solution uses the GCPs to build a relationship between the pixels and the ground locations. For the next step in your project, see one of the following:

Polynomial: The Polynomial math model solution warps the raw image around the GCPs to fit the ground coordinate system. For the next step in your project, see Geometrically correcting images.

Thin Plate Spline: The Thin Plate Spline math model solution uses the GCPs simultaneously to fit the raw image to the ground coordinate system by distributing the transformation over the entire image. For the next step in your project, see one of the following: