[GRASS-user] Geometric Correction

[Markus Neteler]

On Thu, Feb 4, 2010 at 2:06 PM, Luis Lisboa <luislisboa1975 at gmail.com> wrote:
>> Relevant for you is this:
>> - "implement/finish linewise ortho-rectification of satellite data"
>> ...unfortunately stuck since GRASS 4/5...
>
> Regarding this... According to Lillesand and Kiefer the idea is to correct
> geometric distortions of the image.
> For instance, the Georrectify module is not enough? or the i.rectify
> function?

It is not enough because it is made for aerial photos (central projection)
while satellite data are line-wise scanners (so central projection only
in one direction).

>> It would be great to see the existing algorithms integrated.
>
> Ok Since I will need to do some work on this, at the end I can contribute
> with some code/functions

great! happy hacking,
Markus