Abstract
This paper proposes the post-integration technology based on sub-pixel image registration and image
fusion to improve the signal-to-noise ratio (SNR) of remote sensing images without motion degradation caused
by satellite vibration. A two-dimensional vibration system is set up to simulate satellite disturbance. Image
sequences with different exposure times are captured using a high-speed CMOS camera. The displacement plots
are compared with the motion data measured by the grating linear encoder. These plots indicate that the
accuracy of the registration algorithm is better than 0.1 pixels. The sub-pixel image fusion shows an
improvement in image quality, thus indicating that this technology is powerful for staring imaging systems in
geostationary orbit.
© 2014 Chinese Optics Letters
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