Relative Radiometric Correction of Imagery Based on the Side-Slither Method

Abstract

The relative radiometric calibration is essential to get high-quality remote sensing images. An efficient way to bypass the quest of uniformity is to use the satellite agility in order to align the ground projection of the scanline on the ground velocity. This weird viewing principle(side-slither) allows all the detectors to view the same landscape. A relative radiometric calibration model based on side-slither data was built established. Thus, non-linear normalization coefficients can be computed by a histogram matching method and the Laboratory radiometric model. Finally, the validity of this method was verified by GF-1 side-slither calibration data.