Acta Geodaetica et Cartographica Sinica

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Imaging Model and Image Recovering Algorithms of Spaceborne Camera

  

  1. 1.
    2. Changchun Institute of Optics, fine Mechanics and Physics, Chinese Academy of Sciences
  • Received:2009-07-03 Revised:2010-03-25 Online:2010-12-22 Published:2010-12-22

Abstract: A Generic Model of Time-Delay and Integration Charge-Coupled Device (TDI CCD) Push-broom Imaging (GMPI) based on energy was established, through researching the Image Motion Mismatch (IMM) of the space camera in the end of orbit life. For the image motion mismatch being inevitable in the end of orbit life, an Unconventional Way of Remote Sensing Imaging (UWRSI) was proposed based on GMPI, in order to Simplify the calculation, the GMPI was Simplified to a Filter Model of TDI CCD Push-broom Imaging (FMPI), using the Filter Model, the Image-Aliasing Effect (IAE) of the space camera in end of orbit life was Quantitative Analysis easily, and the algorithm and its parameters of image recovering was given out based on imaging parameters. The Original image with IMM were obtained from imaging system with IMM, which was tried to recover to the virtue images using the image recover algorithm, the result showed that the image recover algorithm was effective.