[GRASS-user] rectifying digital images

[Markus Neteler]

On Jan 7, 2008 3:03 PM, Maning Sambale <emmanuel.sambale at gmail.com> wrote:
> Markus,
>
> > Well, you have what you have, I think. For which country do you need
> > the DEM?
> Philippines

You could also try ASTER DEM (30m).
And ask on this mailing list:
http://www.osgeo.org/geodata

> > > >>I once received a script collection to use Octave and GRASS
> > > to perform bundle block adjustment but never got that working
> > > (still have the code, we could contact the author).
> I've been reading through a couple of articles using bundle block
> adjustment.
>
> >From the manual of Leica Photogrammetry Suite:
> Bundle block adjustment determines the position and orientation for each
> image in a project as they existed at the time of photographic or image
> exposure. The resulting parameters are referred to as exterior
> orientation parameters. In order estimate the exterior orientation
> parameters, a minimum three GCPs is required for the entire block,
> regardless of how many images are contained within the project.
>
> This maybe what GRASS needs as an additional functionality.

I have found the author's recent email address of these BBA scripts,
will le you know if he responds.

Markus