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autonomousvision / mip-splatting

[CVPR'24 Best Student Paper] Mip-Splatting: Alias-free 3D Gaussian Splatting
https://niujinshuchong.github.io/mip-splatting/
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About 2D filter #41

Open Zhentao-Liu opened 1 month ago

Zhentao-Liu commented 1 month ago

I wanna ask why the 2D filter could work. In original 3DGS, it uses 0.3f, and you use 0.1f with a coef. mip why does it work?

niujinshuchong commented 1 month ago

Hi, besides kernel size, we also consider the normalization factor (coef in your screenshot). The kernel size should be choose to match a single pixel area and using 0.1 is a better approximation.