identify control points from groups of overlapping images
Autopano-SIFT-C automatically creates control points for
groups of overlapping photographs using SIFT ("scale-invariant
feature transform").
It can be controlled from within the Hugin GUI front-end.
N.B. The SIFT algorithm is restricted in the USA by a patent
owned by the University of British Columbia.
Homepage: https://hugin.sourceforge.net/