[ptx] beta version available for pano12.dll with improved optimizer

JD Smith jdsmith at as.arizona.edu
Mon May 17 05:10:49 BST 2004


On Sun, 2004-05-16 at 15:15, Rik Littlefield wrote:
> A beta version of pano12.dll with an improved optimizer is now available 
> at http://www.janrik.net/ptools .
> 
> This is built from the sourceforge cvs as a starting point.
> 
> Major improvements/changes include:
> 
>     * Faster convergence (often *much* faster convergence)
>     * FOV optimization is stabilized to work better with partial panos
>     * Control point errors are consistently reported as angular 
> distance, scaled to pixels at the center of the panorama.  (Scaling was 
> off for partial panos in the old version.)
>     * Error distance is reported correctly for horizontal/vertical/line 
> controls
>     * Added the query feature capability suggested by Joost Nieuwenhuijse
>     * Modified dll function distSquared to return control point error as 
> described above, instead of distance squared in image coordinates.  
> (This change was required to work with existing PTOptimizer.exe's.  If 
> anyone needs the old behavior, we can re-export it under a different name.)

Great to hear!  I wonder if Bruno and Jim would let you create a branch
for this on sourceforge.  Then it would be easy to browse all the
changes you have made, and development could go on in parallel until the
code is proven.

JD


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