Popis: |
The basic idea of direct geo-referencing (DG) was realized and refined in this paper by introducing 19 additional parameters for self-calibration of airborne pushbroom hyperspectral images with in-flight GPS/IMU data. It is demonstrated that the proposed self-calibrated DG approach significantly rectify the geometric distortions caused by misalignments in GPS/IMU, aircraft vibration, interior parameters of the sensor's optical system, and variations in pixel ground resolution and topography. |