[ptx] Hugin under OS X problems

[Rik Littlefield]

Daniel,

Unfortunately, I cannot recommend an article or tutorial on the math of 
panorama tools.  Perhaps someone else on the list can do that.

I agree, http://www.dojoe.net/tutorials/linear-pano/ is an excellent 
tutorial for what you're doing.

Keep working on the pano.  You might get some better idea what's going 
on by starting with a small problem, just two or three pictures, then 
working up.

I will be out of touch for a week or so.  Best regards in the meantime.

--Rik

PS. I don't understand your comment that "If I shot it all from one 
point the edges would have been too small".  If the subject is planar, 
the projection is rectilinear, and the center of the pano is at the 
closest point of the subject, then the subject geometry will be 
preserved.  More like "restored", actually, since what the rendering 
will actually do is take parts of the subject that were shrunk by 
perspective, and blow them back up to match the center.

Daniel M. German wrote:

>Ed, Rick, 
>
>I appreciate you both took the time to write the postings. One thing
>that is clear to me is that I need to learn the math behind the
>creation of the panoramas. Would anybody recommend articles or
>textbooks to do so?
>
> Rik> The situation that I hear is this: The subject is a flat surface, the 
> Rik> lens is rectilinear, and the camera moves between shots.  It's probably 
> Rik> pointed in slightly different directions too, and at different distances 
> Rik> from the subject surface.
>
>I am more less following this method. The subject is a mural, and it
>was just too wide. If I shot from the other side of the street I would
>not get the detail I wanted (plus objects in between), and if I shot
>it all from one point the edges would have been too small. That is why
>I shifted at each photo.
>
>The lens I am using is a Canon EF 100 2.8 USM macro. This test
>http://www.photozone.de/8Reviews/lenses/canon_100_28/index.htm shows
>that its distortion is negligible.
>
>I am setting a different "lens" for each photo, a,b,c=0 for all
>photos, and trying to optimize FOV in all and d,e in all but anchor. I
>have also added several horizontal control lines. But I have not been
>able to get hugin to cooperate yet :)
>
>I was following this tutorial:
>
>http://www.dojoe.net/tutorials/linear-pano/
>
>
>
>
>--
>Daniel M. German                  "Technology now more often
>                                   arouses apocalyptic ecstasies
>                                   or visions of the kingdom of God
>   Jacques Ellul ->                than rational reflection"
>http://turingmachine.org/
>http://silvernegative.com/
>dmg (at) uvic (dot) ca
>replace (at) with @ and (dot) with .
>
> 
>
>
>  
>