Optical Flow SDK 2.0 accuracy

I am using Nvidia Optical flow SDK to obtain the optical flow. then, There is no difference in accuracy between 1.0 and 2.0.
I exchange code and file to use SDK2.0
(kernel.cu, Freeimage.h, FreeImage.dll, FreeImage.lib, and other NvOF files)

  1. I want to know if there may be any improvement in accuracy for certain data.

  2. For accuracy measurement, MPI-Sintel testset with slow preset and 1-gridsize.
    I got 11.15 EPE-all(final).but Nvidia OpticalFlow introduction page got 6.47 with post-processing.
    I would be grateful if you let me know what further processing is done to improve the accuracy.

And it would be nice to see the improved results with 2.0.

Thank you for your good technology and knowledge.