Hi Terry,

Am Mittwoch, 6. November 2013 04:33:42 UTC+1 schrieb Tduell:
>
>
> is there some reference material or somewhere I can go to learn a bit more 
>   
> about how to use Tpy and Tpp? 
>
> unfortunately not. Tpy and Tpp are based on Pablos work about the 
translation parameters TrXYZ. But these parameters were not exposed to 
Hugin.
They are an extension for TrXYZ and work only together with them.
If TrXYZ are zero and not optimized, then Tpy and Tpp have no effect.

A short introduction for TrXYZ is given here: 
http://wiki.panotools.org/Stitching_a_photo-mosaic
The translation plane yaw (Tpy) and translation plane pitch (Tpp) allow now 
to rotate the remapping plane to a arbitrary position - instead of the 
fixed one (0,0,1) in the older version.
This should allow to use TrXYZ+Tpp+Tpy for nadir images without the need to 
rotate the panorama in between (to move the nadir into the middle and after 
stitching back).

Because there are now 3+3+2 parameter to describe the image position, the 
optimisation is more fragile when optimizing all. So I would recommend 
first to optimize "only" yaw/pitch/roll. When now all images are in the 
position, fix all image position and optimize y,p,r,TrXYZ+Tpp+Tpy only for 
the nadir image.
In some cases I had better results, when starting with Tpp/Tpy=0. In other 
projects it works better when trying to guess Tpp/Tpy before and start the 
optimizer with this start values (Tpy/Tpp have the same convention as the 
normal yaw/pitch.)

Thomas

-- 
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.
To unsubscribe from this group and stop receiving emails from it, send an email 
to [email protected].
To view this discussion on the web visit 
https://groups.google.com/d/msgid/hugin-ptx/9044ee53-16f8-460d-905d-fcf650206c43%40googlegroups.com.
For more options, visit https://groups.google.com/groups/opt_out.

Reply via email to