Geometric Correction Algorithm of Remote Sensing Image Based on Nonlinear Rational Polynomial Approximation

摘要

Based on the nonlinear rational polynomial approximation, this paper propose a new model to correct the remote sensing image. Compare with the usual polynomial model, the rational approximation model can correct the more complicated distortion of image for its more intensive nonlinearity. For the model is a nonlinear equation of parameters, the paper derives a direct solution for the parameters with respect to the usual iterative solution. The experiment shows that the new model and direct solution is better than the usual used polynomial model.