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Hi Johan,<BR>
What you are looking for is grass indeed. But I belive what you trying to do is quite in vain. It would be much easier to get a DEM and drape the IR-Photographs over it. This all is very easy to do with Grass and nviz. Watch<BR>
<A HREF="http://grass.itc.it">http://grass.itc.it</A><BR>
you will find all the links and hints to tutorials and manuals for doing this.<BR>
If you have no DEM (I guess because you aks your question ...) youl will find the GLOBE projekt where you can get a world covering DEM of 30 arc seconds which results in a one kilometer elevation model:<BR>
<A HREF="http://www.ngdc.noaa.gov/mgg/topo/globeget.html">http://www.ngdc.noaa.gov/mgg/topo/globeget.html</A><BR>
<BR>
there are also some tools for that data. As far as I remember grass is able to directly import GLOBE-Data<BR>
<BR>
hope that helps you.<BR>
<BR>
cheers<BR>
<BR>
Stefan<BR>
Am Montag, den 26.04.2010, 15:01 +0200 schrieb Johan Nilsson:
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I have very little knowlight of terminology in this area.
Is there a possibility if you have 2 semi-overlapping IR-photo, with
known flight-altitude, distance between picture, camera-model and
pictures corners coordinat, to make a 3D model with height-data?
To use 2 pictures to get "stereo-vision", requere quite special
dual-screens and gfx-card and polaroid-glasses, so to skip this, are
there some other software that can pick altitude for every pixel in
the area there 2 IR-photo cover?.
If not QGIS have this, is there any other open source-applications to
use, for instance GRASS that manage this, and what is the name of the
process to make a 3D-map from at leaste 2 airphoto in GIS-terminology?
/Cheers
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