A strange result was generated

[406809573]

Hello，I tried to reproduce this work, but after I ran the following code with a sample video, the result has a severe distortion, what is causing this? Or what parameters need to be adjusted?

conda activate FuSta_CVPR2020
cd CVPR2020CODE_yulunliu_modified
python main.py [input_frames_path] [output_frames_path] [output_warping_field_path]