[CREATE] [hugin-ptx] Re: Lens correction database
Bruno Postle
bruno at postle.net
Sun May 20 15:28:43 PDT 2007
On Thu 17-May-2007 at 15:02 +0200, Pablo d'Angelo wrote:
> > During the stitching process, hugin evaluates the quality of the
> > optimisation by calculating error distances, why not improve
> > this with some extra checks and give the user an option to
> > upload the results from _all_ good optimisation passes.
> This could happen through uploading an anonymized pto file (image
> filenames etc. removed) to some central server.
The pto files can get very large, especially when calibrating lenses
with thousands of control points. Is it practical to upload a 30kB
pto file with a dial-up connection? How many is it practical to
receive concurrently?
Perhaps this is too simplistic: but the lens parameters could be
submitted to a server with a single http GET just by appending them
to the URL:
http://example.com/lens?CameraModel=Nikon%20D100;CropFactor=1.5;a=0.01;b=-0.021;etc...
This could be received by a CGI or PHP script and stuffed into an
SQL database, but it would be even simpler to have no script on the
server and pull the information out of the server logs - This system
is _very_ scalable even with modest server hardware.
--
Bruno
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