Night-Light Image Restoration Method Based on Night Scattering Model for Luojia 1-01 Satellite

Abstract

Aiming at solving the degradation problem of Luojia 1-01 night-light remote sensing images, the main reason for the “glow” phenomenon was analyzed. The APSF (Atmospheric Point Spread Function) template of night-light image was obtained from atmospheric source scattering. The template was used as the initial value in the regularization restoration model in this paper. Experiments were carried out using single point and regional images. The results demonstrate that the estimated APSF and restoration results of the method are better than those from other methods, and the image quality is improved after restoration.

Keywords

• night-light remote sensing image
• “glow” phenomenon
• APSF
• image restoration
• atmospheric scattering