How is the local motion feature extracted exactly?

ajseo95 / MASN-pytorch

pytorch implementation for the paper Attend What You Need: Motion-Appearance Synergistic Networks for Video Question Answering

MIT License

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How is the local motion feature extracted exactly? #8

Open HopLee6 opened 2 years ago

HopLee6 commented 2 years ago

I have looked into the local motion feature and found out that most of the motion features of objects are zeros. Additionally, for the features that are not zero, they have the same (small) value in each dimension, not likely to be the C3D features with RoIAlign. So how is the local motion feature extracted exactly?