[GRASS-user] i.atcorr for GeoEye-1 and Worldview-3

Nikos Alexandris nik at nikosalexandris.net
Fri Jun 5 02:00:38 PDT 2015

* Nick Ves <vesnikos at gmail.com> [2015-06-05 11:44:18 +0300]:

> ​​
> Take note for WV3 [0] digital globe states that
> ​​
> "
>  WorldView-3 addresses this problem by being the first commercial imaging
> satellite with an atmospheric sensor as part of its payload. During image
> capture, the WorldView-3 atmospheric sensor is designed to detect the
> presence of clouds, aerosols and water vapor at 31 meter resolution,
> thereby measuring the exact atmospheric conditions corresponding to every
> recorded image [...].
> *​​DigitalGlobe has developed proprietary algorithms that use these
> atmospheric measurements to normalize WorldView-3 imagery for consistency*.
> This normalization is called atmospheric compensation, which is especially
> important for information extraction, such as change detection and
> vegetation analysis because changes
> *​​due to the ​​atmosphere have been removed*.
>> "
> Which seems to imply that their (of-the-shelf) products are already
> cleaned​ from any atmospheric artistic.
> ​Further confirmation on that would I think is needed.​
> [0]
> https://www.digitalglobe.com/sites/default/files/DG_Pixels_to_Products_forWeb.pdf

Or, maybe it's simply still "new" and calibration wroks are still


Nikos A

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