This is a modified version of USAC (Universal Sample Consensus)
using CMake to compile it on Windows, Mac and Linux.

The original USAC source code (in branch 'usac') is available from:
http://www.cs.unc.edu/~rraguram/usac/

CMake/Mac porting by Christian Richardt (http://richardt.name).

Based on the paper:
  USAC: A Universal Framework for Random Sample Consensus
  Rahul Raguram, Ondrej Chum, Marc Pollefeys, Jirí Matas and Jan-Michael Frahm
  IEEE Transactions on Pattern Analysis and Machine Intelligence, 2013, 35(8), 2022–2038
  http://dx.doi.org/10.1109/TPAMI.2012.257