Volume 33 Issue 1
Jan.  2013
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Chen Chao, Qin Qiming, Lu Yan, Wang Jinliang, Zhang Ning. Research on photometric correction of lunar image from CCD stereo camera onboard Chang'E-1 satellite[J]. Journal of Space Science, 2013, 33(1): 120-127. doi: 10.11728/cjss2013.01.120
Citation: Chen Chao, Qin Qiming, Lu Yan, Wang Jinliang, Zhang Ning. Research on photometric correction of lunar image from CCD stereo camera onboard Chang'E-1 satellite[J]. Journal of Space Science, 2013, 33(1): 120-127. doi: 10.11728/cjss2013.01.120

Research on photometric correction of lunar image from CCD stereo camera onboard Chang'E-1 satellite

doi: 10.11728/cjss2013.01.120
  • Received Date: 2011-09-14
  • Rev Recd Date: 2012-04-06
  • Publish Date: 2013-01-15
  • In order to fit coefficients of the phase function more accurately and obtain some accurate results, Lommel-Seeliger factor has been revised according to the characteristics of CCD stereo camera data of Chang'E-1. By effective revision, the incidence angle and instrument viewing angle effect have been removed. The corrected image data fit much better with the variable trend of phase angle. Then photometric correction on the CCD stereo camera data of Chang'E-1 has been carried out pixel by pixel using the improved Lommel-Seeliger photometric correction model introduced by the revised Lommel-Seeliger factor. Finally, this algorithm has been verified by two groups of data from different latitudes of the same orbit and different view angles of the same area, respectively. The experimental results show that this method could effectively correct the inconsistency of the spectral characteristics of the object induced by the change of observation conditions. Moreover, using this method, photometric correction shows better performance even at brighter or darker areas.

     

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