[GRASS-user] Geometric correction with GRASS

Margherita Di Leo diregola at gmail.com
Tue Jan 15 06:34:46 PST 2013


Hi Josep,

maybe OSSIM can be of use:
http://trac.osgeo.org/ossim/wiki/orthorectification

HTH,
madi

On Tue, Jan 15, 2013 at 1:05 PM, Josep Sitjar <josep at sigte.udg.edu> wrote:

>  OK Moritz, thanks for the comment.
> While the linewise ortho-rectification of satellite data is not
> implemented, do you know another open source solution to perform this task?
>
> Thanks,
>
>
>
>
> On 01/15/2013 12:09 PM, Moritz Lennert wrote:
>
> On 15/01/13 10:44, Nikos Alexandris wrote:
>
> Josep:
>
> Hi,
>
>
> Hi Josep!
>
> I'm working with an SPOT scene, which is preprocessed at the level 1A.
> Now I need to do a geometric correction of this scene, not only with
> control points but also with a Digital Terrain Model. It's possible to
> do this in GRASS? How?
>
>
> Of course it is possible. Please, get your grip on the respective
> GRASS-wiki
> page and the related manuals.
>
> Pointers:
>
> <http://grasswiki.osgeo.org/wiki/Georeferencing><http://grasswiki.osgeo.org/wiki/Georeferencing>
>
> and
>
> <http://grass.osgeo.org/grass64/manuals/gm_georect.html><http://grass.osgeo.org/grass64/manuals/gm_georect.html>
> <http://grass.osgeo.org/grass64/manuals/wxGUI.GCP_Manager.html><http://grass.osgeo.org/grass64/manuals/wxGUI.GCP_Manager.html>
>
> and, of course<http://grass.osgeo.org/grass64/manuals/i.ortho.photo.html><http://grass.osgeo.org/grass64/manuals/i.ortho.photo.html>
>
>
> i.ortho.photo is used for aerial photography, not for satellite imagery.
> There is currently no orthorectification of satellite images in GRASS. It
> is on the ToDo list though:
> http://trac.osgeo.org/grass/wiki/Grass7/ImageryLib => "Implement/finish
> linewise ortho-rectification of satellite data"
>
> Moritz
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>
>
>
> --
>      Josep Sitjar
> Técnico SIG  Tel. (34)972418039
> www.sigte.udg.edu  <http://exploradoressig.wordpress.com/> <http://twitter.com/SIGTE_UDG>
> <http://www.linkedin.com/company/1337058?trk=NUS_CMPY_FOL-co>
>
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>


-- 
Margherita DI LEO
Postdoctoral Researcher

European Commission - DG JRC
Institute for Environment and Sustainability (IES). Unit H03 – FRC
Via Fermi, 2749
I-21027 Ispra (VA) - Italy - TP 261

Tel. +39 0332 78 3600
margherita.di-leo at jrc.ec.europa.eu

Disclaimer: The views expressed are purely those of the writer and may not
in any circumstance be regarded as stating an official position of the
European Commission.
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