Improvement of the space resolution of the optical remote sensing image by the principle of CCD imaging

Based on the feature of CCD image forming, the internal principle of image forming is analyzed, and the loss of charge transfer is calculated by the Shockley - Read - Hall equation, in which the distribution function between the charge transfer is reconstructed. Rational polynomial interpolation algorithm is used to determine the unknown pixel points for the adjacent pixels that do not overcome the loss of charge transfer to enhance the image. It is an self-adaptive interpolation algorithm, in which the interpolation function can be adjusted automatically with electrical potential difference of the adjoining pixels and its energy zone, by means of which, the image can be magnified self-adaptively. Remote sensing image is tested, and the example results show that not only the image quality is improved, but also the clear margin and contour information is kept with this algorithm. And thus the processed images are more conducive to the naked eye.