Roger Broadie wrote:
Hello Paul,I was a little surprised at the idea that Hugin could output a panorama defined to be rectilinear but which would show with the barrel distortion apparent in your stitch.
I attached my pto file as evidence in my defence :-)
So I tried converting your output from all the list of allowable output formats to rectilinear. Assuming the starting point was a fisheye seems to work well, at least as far as the side (long) edges are concerned.. There was still curvature in the top (short) edges, which I cured with a panini general projection, adjusting the top and bottom sliders. Whether the horizontal/vertical aspect ratio is correct, I cannot say, but the writing in the tables looks unstretched in either dimension as far as one can see at the available resolution. The pto file and output are attached. I chose an hfov of 59 degrees, but there may be a better angle. So my question would be, whatever you may have thought, did you actually choose a rectilinear output projection?
My current pto is attached.
I don't find the rotation behaviour you mention surprising. Surely, optimising will allow the horizontal and vertical lines you have defined to reassert themselves and undo your hand rotation. The moral would appear to be, either to swap all the horizontal and vertical line-types, or, it that's too boring, to do all your optimisation first and then rotate by hand, which is probably what you did.
No - since I wanted hugin to optmise "properly" I allowed it to move the "anchor" image in YPR; in conjunction with H and V CP pairs, this has always (up until now) worked well to regularise images of 2D rectangular objects, compensating for the camera either being off-centre, or pointing off centre. I have successfully captured maps before using this approach and am currently rather baffled as to my current failure. BugBear -- A list of frequently asked questions is available at: http://wiki.panotools.org/Hugin_FAQ--- You received this message because you are subscribed to the Google Groups "hugin and other free panoramic software" group.
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estate_map.pto
Description: application/ptoptimizer-script
