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I think the most interesting part of this news is that they took an image processing technique and applied it on this large of a scale. They're doing background
by monksy 10y ago
I think the most interesting part of this news is that they took an image processing technique and applied it on this large of a scale. They're doing background extraction on the entire set of satellite data.
An example can be found here: http://opencvpython.blogspot.com/2012/07/background-extraction-using-running.html http://opencvpython.blogspot.com/2012/07/background-extracti...
- woodman 10y agoI would be extremely surprised if they were actually doing that, because a lot of effort has already been put into doing it a better (and more interesting) way: cloud detection and mosaicing. Landsat captures several spectral bands, and due to atmospheric transmission rates, some bands can act as really good cloud filters [0]. This is what they're actually using, or something very close to it, for clouds [1]. [0] http://landsat.usgs.gov/ldcm_vs_previous.php http://landsat.usgs.gov/ldcm_vs_previous.php [1] https://github.com/USGS-EROS/espa-cloud-masking https://github.com/USGS-EROS/espa-cloud-masking