Validation of Frame-Transfer Correction of SELENE/LISM/MI

Since the visible detector of the Multiband Imager (MI) of the Lunar Imager/Spectrometer mounted on the Selenological and Engineering Explorer operates in a frame-transfer mode of a 2-D charge-coupled device, signals suffer from additional light exposure during the charge transfer, causing complicated artifacts. In this paper, we developed an iterative image-correction algorithm based on a model of multiband artifact phenomena. Using lunar images acquired while in orbit, we validated the correction performance based on a cross-comparison with near-infrared images of the MI obtained at a similar wavelength. Our correction algorithm corrected the additional electric charge of up to 10% of the obtained signal at the Apollo 16 site. Photometric and terrain corrections that include the effect of the observation angle were found to be important in precise cross-calibration.