[ptx] Coordinates transform urls ?

[alexandre jenny]

Hi,

I'm going to write a new class for space transform for the hough transform
of sift algorithm.
So I'm looking for the exact transform from :
  basis 1 : picture coordinates (params : yaw, pitch, roll, fov) (also
xsize, ysize)
     picture (x, y) basis
To
  basis 2 : absolute equirectangular basis
     (x', y')

Does anyone have a link giving details ? I'm a currently writting it my own,
but it's long ...

Thanks

Bye
   Alexandre