On the Digital Geometrical Rectifications for the Spacelab Images by Using Colinearity Equations

This paper discusses the fundamental and data preparation in digital geometric rectification for Spacelab images by using colinearity equations, the determination of the parameters in the calculation of the exterior elements, the flexibility and rectification accuracy of the "Anchor Points Rectification Approach", and several important steps in the rectification procedure for higher accuracy and the shorter CPU time.This paper also introduces the composition of the software package concerning the rectification.