This code was written by Shenlong Wang, University of Toronto, http://www.cs.toronto.edu/~slwang/

- the code requires:
   * GPU
   * mxnet (https://github.com/dmlc/mxnet)
   * pydensecrf (https://github.com/lucasb-eyer/pydensecrf)

- learned model:
   * weights: http://www.cs.toronto.edu/~slwang/FCN_gpu0-0019.params
   * architecture: http://www.cs.toronto.edu/~slwang/FCN_gpu0-symbol.json