Re: [photo-3d] Algorithm Wanted

[Robert Thorpe <thorpe@xxxxxxxx>]

Bruce Springsteen wrote:
> I'm looking for the most efficient algorithm - a set of steps - for
> locating and aligning those vectors in an un-registered pair of images.

Let's see if I understand this right. There are two parts as I see it;
the divergence/convergence of the vectors and possible rotational error.
The divergence/convergence is fixed at the time the pictures are taken 
and is therefore only interesting as an academic exercise. Either 
they work or they don't.

If you are looking to correct for rotational error, I would find two
identical points in each picture. Hopefully one on the right edge
and one on the left edge. I would rotate one of the pictures till it
looked right vertically and tape it down. I would align the higher 
of two points in the second picture with the same point in the first,
taped down picture, think of putting a pushpin through the pictures
at that point. Then I would rotate the second picture around the 
push pin till the other two points were aligned. Trim the tops and 
bottoms so they match and then correct for the window.

I suppose this isn't anything that you were interested in and that
I have barked completely up the wrong tree.

======================
Robert Thorpe
Cedar Rapids, IA
thorpe@xxxxxxxx
http://www.skep.com