Some questions about PWC-Net

[christian-cahig]

• As stated in the README, the tfoptflow implementation of PWC-Net was used. However, tfoptflow has some alarming yet unresolved issues (e.g., regarding scaling and flow equation). What modification(s) were employed in this work?

• Also, the Requirements Setup says that:

  Please overwrite tfoptflow/model_pwcnet.py and tfoptflow/model_base.py using the ones in this repository.

  The "ones in this repository"—which I believe are to be used in place of model_pwcnet.py and model_base.py from the tfoptflow code base—seem to be missing.