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fudan-zvg / 4d-gaussian-splatting

[ICLR 2024] Real-time Photorealistic Dynamic Scene Representation and Rendering with 4D Gaussian Splatting
MIT License
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How to enable the optical flow function? #28

Open GANWANSHUI opened 8 months ago

GANWANSHUI commented 8 months ago

Hi, thanks a lot for sharing the excellent work.

I tried to train the 4dgs under the synthesis scene (dnerf), but the output flow value is zero how to enable the optical flow function? Or did I miss anything?

Thanks again!

XLY43 commented 7 months ago

Hi did you figure it out?

GANWANSHUI commented 7 months ago

Not yet. An alternative is calculating the offset between two frames, which should derive the optical flow.

STLAND-admin commented 4 months ago

Hi did you figure it out? I tried to visualize the offset but it is not right

qrcat commented 3 months ago

The flow is compute by flow_2d as input, and it just use volume render to display flow_2d.