From: Jim Watters <jwatters@ph...> - 2006-07-21 02:33:23
Would it be worth adding another pair of parameters for shifting images
horizontal and vertical similar to d & e, but would happen after
correcting a,b, & c?
The reason is that using d & e to correct for hand held nadir image
that was not lined up exactly will result the a,b, & c correction
happening in the wrong position in the image. The same goes for making
the long street pans (ortho...., walk down the street and take pictures
of the other side.)
Maybe it is better to use shear correction than shift for the hand held
I can usually line up the nadir very well using Photoshop and
free-transform using distortion correction.
The nadir is only one plane. not objects to show parallax error.
Yahoo ID: j1vvy ymsgr:sendIM?j1vvy
jwatters @ photocreations . ca
From: Bruno Postle <bruno@po...> - 2006-07-22 21:16:29
On Thu 20-Jul-2006 at 22:33 -0400, Jim Watters wrote:
> Would it be worth adding another pair of parameters for shifting
> images horizontal and vertical similar to d & e, but would happen
> after correcting a,b, & c?
This would fix the 'mural stitching' problem. Currently the images
have to be processed twice, once to remove lens distortion and again
to do the actual stitching.
There is actually a more generic solution for this in PTStereo,
where each photo can have X, Y and Z positional parameters.
Your solution is effectively to add just X and Z.