I've worked with spherical panoramas since today with only little problems.
Now I've tried to stitch a simple 3 photo vertical sequence but all my attempts produced very poor results.
I can't understand which projection is the best choice for such a "simple" task.
I guessed the planar projection was the best, and as a matter of fact it looks so, but it cause a large progressive stretch in the upper and lower section of the panorama (you can play a bit with the pitch angle setting to "center" the panorama, but stretch persists).
All others projections give unacceptable distortions in the upper and lower section of the resulting panorama.
Obviously some projections (spherical, cylindrical, little planet, mirror ball) are surely unfit for this goal, but, as I wrote, all the others seem not better in my newbie experience.
Paradoxically I get much better results with a "generic" (even though top level) software like Photoshop.
Which is your experience about this matter?
Thank you in advance for your attention.
alfapapa wrote:Tank you for your posts,
My goal was to generate a pano similar as a single photo I could shot if could walk back till entire subject was included in a single shot (exclusive of the image resolution of course) possibly printed on paper and not to be used as a virtual tour.
It looks a very complex matter indeed!
As I read in one of your links "If you are looking for a single projection, that will map a spherical (even partial) panorama on a flat surface without bending lines: This won't work!".
I tried with Panini projection parameters too, but I can't minimize the "bubble" distortions at the pano extremity (as in your sample jpg).
I'll try to take some shots extending the photo coverage up and down in order to use only the best part of the images (center section=less parallax?) and cut away the stretched extremities...Hmmm... no, the crucial point should be the (wide) FOV.
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