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As production of the telescope observation system, spectrum CCD images are affected by cosmic rays, dust, atmospheric and other natural conditions, which add noise to the spectrum information in image and make the image data difficult to study. The process of repairing the noise influence for CCD image is important. Existing methods such as median filter process and template matching cannot get balance...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.