Triplet Evaluation of Stereo-Pushbroom Scanner Data

摘要

Stereo registrations of the pushbroom scanners are principally used to derive height information above earth's surface. For this purpose the coplanarity condition and the scale constraint condition are selected as the geometrical evaluation model. The time-variant exterior orientation parameters in each subdivided triplet are described by polynomials and Fourier series. Simulation tests show that the achievable results depend on the flight conditions, the terrain ruggedness and the chosen design parameter like base to height ratio, etc.