Using jacobians or rotation matrix for warping features

[ghost]

Hi @zhanglonghao1992 ,
Thanks for sharing your implementation of the paper!

As I understand there is difference from the first to the last version of the paper regarding the using of the jacobians as part of the feature deformation- the jacobians are replaced with the rotation matrices of the source and the driving.
I see in lines 50-60 of your implementation to the dense motion model that you comment the use of the rotation matrices and now you are using the the location of the keypoints only - why did you do this?

Thanks in advance,
Tal