PanoTools:
Re: Need help stitching my helicopter panorama!
Peter Nyfeler 2005-Jun-03 00:25:33
Hi Ed,
Just tried to stitch, but the parallax error is too big, I'm so sorry
for you.
The only advantage..... you can fly again..... ;-)
Peter Nyfeler
Edward Fink schrieb:
> I could use some help if anyone has the time to try stitching
>some aerial photos to see if I'm doing something wrong.
>
> I shot my first panoramas from a helicopter Tuesday, but they
>have so many stitching errors that I'm about to trash it all and reshoot
>everything.
>
> It was probably too windy that day. We even had to start over
>once because we drifted a couple of blocks down the street between the
>first shot and the second.
>
> My client is trying to talk the pilot into a half price charge
>for the retake, but at this point I can't be certain that I'm not doing
>something wrong. I did shoot down at a -30 to -40 degree angle, trying
>to use the good part of the lens more, and trying to get lots of overlap
>for the nadir, which isn't normal for me, but I don't think that would
>cause the problem.
>
> It looks so bad that I haven't even tried to warp things into
>place with Photoshop yet. I've been so spoiled by my Kaidan Quick Pan
>III that I've never had to deal with anything this far out of whack
>before, so I'm looking to see what I can do to improve it in PTGui
>before using Photoshop. (Especially since I also shot panoramas over two
>other cities, and those look just as bad as the first one.)
>
> I was surprised to find that even with dozens of control points
>per seam and control points on the horizon on all four pictures, the
>horizon still got pretty screwed up. It was so bad that I finally
>stopped optimizing and just typed in all the pitch and roll values to
>level the horizon. I could get a really nice straight horizon that way,
>but some buildings end up being misaligned so bad they're a block or two
>away from where they should be. I've got twin towers where there should
>only be one.
>
> The four JPG's from my Nikon D70/Sigma 8mm are at:
>http://www.new-eden.com/temp/Minneapolis.zip
>
> The VR that I get from them, straight out of Enblend, is at:
>http://www.new-eden.com/temp/MINNEAPOLISSKYTOUR.MOV
>
>
>Ed
>#removed#
>http://www.new-eden.com/
>No eternal reward will forgive us now for wasting the dawn.
>-- Jim Morrison --
>
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