How does filter_3D affect?

autonomousvision / gaussian-opacity-fields

Gaussian Opacity Fields: Efficient and Compact Surface Reconstruction in Unbounded Scenes

https://niujinshuchong.github.io/gaussian-opacity-fields/

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How does filter_3D affect? #25

Closed zhouilu closed 1 month ago

zhouilu commented 1 month ago

Tthanks for your great project! I have some questions

How does filter_3D affect? like scale or opacity
There are many artifacts in the sky, but not in the original 3d-gs

niujinshuchong commented 1 month ago

Hi, filter_3D is from mip-splatting and it regularises the minimum size of each Gaussian. Without it, much more small gaussians will be generated. You can check https://niujinshuchong.github.io/mip-splatting/ for the effect of the 3D smoothing filter.

What do you mean by artifacts in the sky? Could you share some visual comparisons.

zhouilu commented 1 month ago

thanks reply！ here is question pic.

niujinshuchong commented 1 month ago

Hi, can you also show a comparison with original 3DGS? How is your training images looks like?

zhouilu commented 1 month ago

here is original 3dgs, less floaters in sky.

zhouilu commented 1 month ago

Mip-splating has a similar problem, so close and check in mip-splating. Thanks.

niujinshuchong commented 1 month ago

@zhouilu Thanks for reporting this. Can you share your data so I can try to figure out the reason?