Greetings,
I am looking for a low cost DEM generation solution. I've seen several
commercial software packages like Orthoengine, Orthobase, AsterDEM, etc. that
can generate DEM/DTM from stereo imagery, but nothing in the open source.
Can GRASS be utilized to generate DEM? If so, what commands/scripts will do
so, and how labor-extensive is the process? If not, can anyone describe, in
layman's terms, what is required to create software that can generate DEM
from stereo imagery? I am specifically targeting ASTER 3N and 3B 15m stereo
image set as the input data.
TIA
Gerald Buckmaster
On Tue, Jun 24, 2003 at 09:23:40PM -0700, Gerald Buckmaster wrote:
Greetings,
I am looking for a low cost DEM generation solution. I've seen several
commercial software packages like Orthoengine, Orthobase, AsterDEM, etc. that
can generate DEM/DTM from stereo imagery, but nothing in the open source.
Can GRASS be utilized to generate DEM? If so, what commands/scripts will do
so, and how labor-extensive is the process? If not, can anyone describe, in
layman's terms, what is required to create software that can generate DEM
from stereo imagery? I am specifically targeting ASTER 3N and 3B 15m stereo
image set as the input data.
TIA
Gerald Buckmaster
This software
http://grass.itc.it/gdp/stereo-grass/
should generate a points (sites) file, which could be used then to
interpolate the DEM using s.surf.rst etc.
The author of above page told me that he used it for creating DEMs.
Best regards
Markus Neteler
Markus,
Wow, everyone else must have interest in the link you provided! I'm getting
the ever-popular Error 503 - Too many users. Is that common with
grass.itc.it? It appears to be mirrored at
http://grass.ibiblio.org/gdp/stereo-grass/ for anyone who hasn't figured that
out yet. I'll have time to read it tonight.
Thanks for the link Markus!
Gerald
On Wednesday 25 June 2003 12:45 am, Markus Neteler wrote:
On Tue, Jun 24, 2003 at 09:23:40PM -0700, Gerald Buckmaster wrote:
> Greetings,
>
> I am looking for a low cost DEM generation solution. I've seen several
> commercial software packages like Orthoengine, Orthobase, AsterDEM, etc.
> that can generate DEM/DTM from stereo imagery, but nothing in the open
> source. Can GRASS be utilized to generate DEM? If so, what
> commands/scripts will do so, and how labor-extensive is the process? If
> not, can anyone describe, in layman's terms, what is required to create
> software that can generate DEM from stereo imagery? I am specifically
> targeting ASTER 3N and 3B 15m stereo image set as the input data.
>
> TIA
>
> Gerald Buckmaster
This software
http://grass.itc.it/gdp/stereo-grass/
should generate a points (sites) file, which could be used then to
interpolate the DEM using s.surf.rst etc.
The author of above page told me that he used it for creating DEMs.
Best regards
Markus Neteler
On Wed, Jun 25, 2003 at 12:45:25PM -0700, Gerald Buckmaster wrote:
Markus,
Wow, everyone else must have interest in the link you provided! I'm getting
the ever-popular Error 503 - Too many users. Is that common with
grass.itc.it?
Recently the GRASS project arrived at consuming the entire institute's
bandwidth :-), so we had to limit it. Please be so kind to use the mirror
sites as well. We have reorganized the mirrors hierarchiy, which is
explained on the mirror site list (you see this list automatically when the
site is overloaded).
Cheers
Markus