Geometrical Comparisons between Rigorous Sensor Modeland Rational Function Model for Quickbird Images

摘要

The objective of this investigation is to comparethe geometric precision of Rigorous Sensor Model andRational Function Model for QuickBird images. In rigoroussensor model, we use the on-board data and ground controlpoints to fit an orbit; then, a least squares filtering technique isapplied to collocate the orbit. In rational function model, wefirst use the rational polynomial coefficients provided by thesatellite company. Then the systematic bias of thecoefficients is compensated by an affine transformation usingground control points. Experimental results indicate that, theRFM provides a good approximation in the position accuracy.