What are the major sources of geometric distortions? What is the image georeferencing and rectification process? What are the major reasons for georeferencing and rectifying the raw remote sensing imagery in mapping and geoscientific applications? Briefly explain the linear polynomial (affine transformation) method for georeferencing and explain the role of GCPs in the transformation. What is rigorous orthorectification? What input data are required for rigorous orthorectification of high-resolution satellite imagery like Quickbird and WorldView?.