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7 Mar 2020 02:03:08 UTC
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STEREO Ahead September 2012 - HD Dynamic Processing
Manual processing of the raw STEREO heliospheric imager data. NASA's method of automatically processing the heliospheric imager data relies on using previous images to calibrate the current images. The tenuous heliosphere is not visible in the uncalibrated data due to glare from the sun. Processing the images based on the images that preceded it inevitably leads to processing artifacts from bright planets and stars. In order to process the raw data, I used PixInsight's dynamic background subtraction to remove the glare from the sun from each image using only the data present in that same image. This seems to produce a much clearer star field at the expense of some residual solar glare.
2 hour cadence for the month of September. Future videos will further refine the dynamic background subtraction technique by increasing the sampling of each image.
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https://www.youtube.com/watch?v=tVDoN4bpODk
2 hour cadence for the month of September. Future videos will further refine the dynamic background subtraction technique by increasing the sampling of each image.
...
https://www.youtube.com/watch?v=tVDoN4bpODk
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video/mp4
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