On Wed, 06 Aug 2014 08:49:42 +1000, Robert Krawitz <[email protected]>
wrote:
On Wed, 06 Aug 2014 08:24:25 +1000, Terry Duell wrote:
[snip]
Using this .pto (almanor-16-bad-1.pto), if I deselect images
1,3,5,7,9,11,12 I can then optimise everything without all hell breaking
loose. I optimised in steps, positions, positions and view, positions
and
barrel, positions view and barrel, then everything. Are you able to
reproduce this behaviour?
It still eventually happens, after enough iterations of removing bad
points, reoptimizing everything but translation, and fine tuning all
points. In this case, when I got the max error under 2 (average .6,
max 1.7), the problem showed up again. This is about when I'd
typically expect it to show. I've attached it at the point it shows up.
Ok. I didn't remove any bad points or do any fine tuning, simply optimised
the project 'as was' in steps.
Whilst this might not be an acceptable workaround for you, the mean
error
is 3.1 pix, max 12.4, it is still considered a good fit.
It doesn't solve the basic problem, but maybe adds a bit more info to
help
track down the cause.
It would be helpful if there were a way to trace every operation I
perform. My description isn't very specific, but it's very hard to be
precise when there are thousands of control points and all that.
That is the 'difficult part', something that needs to be done in a
debugging mode where one can watch variables. Unfortunately I don't know
enough to do that. Hopefully someone who does can use your project file to
track down the problem.
Cheers,
--
Regards,
Terry Duell
--
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