Fwd: [UMN_MAPSERVER-USERS] How to get a plan picture from ortho pictures?

[luca marletta]

Thanks a lot,
unfortunately you are right, I've not all needed.
It seems a process that can be undertaken just by the team that make
the photogrammetric map.

best regards

luca

On 4/20/05, Morten Nielsen <morten at dotnetgis.net> wrote:
> You still need inner and exterior orientation parameters of the images,
> camera parameters and lens distortion measurements. Furthermore you need a
> digital elevation model to do a proper orthorectification.
>
> If the images have been used for photogrammetric mapping, the orientation
> parameters probably exist already, but then you still need a DEM. Just be
> aware that if the images have been oriented using single model setups
> instead of using bundle adjustments / aerotriangulation, you will probably
> get a poor result. Bottom line is that this is no easy task unless you
> already have a full blown orthophoto production setup (which I assume you
> don't have).
>
> Best regards
> Morten Nielsen
>

--
luca marletta  icq: 70590647