reference to https://github.com/meng-tang/rloss/tree/master/pytorch and https://github.com/lucasb-eyer/pydensecrf prebuild version on windows, python 3.6
reference to https://github.com/meng-tang/rloss/tree/master/pytorch and https://github.com/lucasb-eyer/pydensecrf prebuild version on windows, python 3.6