[Freegis-list] HELP - Othorectification in Free and Open Software (GRASS, OSSIM...)

[Luigi Pirelli]

thanks a lot Markus

Bye Ginetto

Markus Neteler wrote:
> On Wed, Apr 12, 2006 at 04:52:16PM +0200, Luigi Pirelli wrote:
>> hi at all,
>>
>> We're studing Orthorectfication solutions inside the GFOSS world. We need 
>> to know and share common problems.
>>
>> In the GRASS world, we found i.ortho.photo, but it's not clear for us what 
>> algorithm is used by this command (GCP, RPC, others...). Do you have 
>> experience?
> 
> The i.ortho.photo implementation follows the algorithms
> described in this book:
> 
>  Elements of Photogrammetry, With Air Photo Interpretation and
>  Remote Sensing by Paul R. Wolf, 562 pages
>  Publisher: McGraw Hill Text; 2nd edition (January 1983)
> 
> You can still find it for a few Euros/Dollars.
> 
> In GRASS 5, there is a src/libes/image3/ library which is
> an extended version including LANDSAT ortho-rectification but
> it was never completed (as far as I know). Related commands
> are i.points3 and i.rectify3 in GRASS 5. It would be great
> if capable programmer(s) make this code (treasure?) ready
> for GRASS 6.
> 
> Best
>  Markus
>