Flow Propagation in GMFlow (CVPR22) vs Flow Field Deformation in LiteFlowNet3 (ECCV20)

[twhui]

Congratulations on your new work!

I think the idea of flow propagation in GMFlow is similar to the flow field deformation in LiteFlowNet3. Both of us propagate flow predictions and measure feature self-similarity. However, LiteFlowNet3 was not cited in GMFlow.

[haofeixu]

Hi @twhui , thank you for bringing the flow field deformation in LiteFlowNet3 to our attention, sorry that we are not aware of this approach while working on our GMFlow project.

Actually, our flow propagation was inspired by the GMA (ICCV 2021) paper, as we have mentioned in our paper. However, I do agree that our high-level idea is similar after checking the LiteFlowNet3 paper despite some difference in implementations. Unfortunately the CVPR camera ready deadline has passed, but I will add LiteFlowNet3 in our extended paper in future. Thanks and wish all the best!

[twhui]

Hi Haofei, I think you can cite LiteFlowNet3 in your updated arxiv version (https://arxiv.org/abs/2111.13680). Do you think this is possible?

[haofeixu]

Hi @twhui ,

FYI, I have referenced LiteFlowNet3 in our updated arxiv paper.

[twhui]

Thank you.