[CREATE] [hugin-ptx] Re: Lens correction database

[Bruno Postle]

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