Mailinglist archive
| Mailinglist: | PanoTools NG |
| Sender: | John Houghton |
| Date/Time: | 16-Dec-2008 22:11:52 +0100 |
| Subject: | Re: Awful time stitching square suspended ceiling tiles :-( |
Thread:
--- In #removed#, "pedro_silva58"
<pedro_silva58@...> wrote:
>
> sorry for being so late to join the party, but i don't understand
> the purpose of one cp per seam. what parameters did you optimize,
> and why?
I was merely making the point that by intelligent optimization and
making use of parameter values already known (applied by a template),
you can manage with far fewer control points than is the case if you
expect PTGui to evaluate everything automatically from scratch. My
example was an extreme case, showing that only one point per seam
actually enabled a perfectly good stitch to be performed. I already
knew the lens parameters (from calibration) and approximate yaw
values, and I knew that the pitch of all 4 images was the same and
the roll was also the same (since a spherical pano head was used).
So I optimised fov, yaw (of 3 images) together with linked pitch and
roll of all 4 images. Of course I am not suggesting that you would
use only one point per seam in a general workflow.
John
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