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city-super / Scaffold-GS

[CVPR 2024 Highlight] Scaffold-GS: Structured 3D Gaussians for View-Adaptive Rendering

Home Page:https://city-super.github.io/scaffold-gs

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Prune points

bmikaili opened this issue · comments

commented

Has anyone tried combining this approach with a prune step like in https://github.com/VITA-Group/LightGaussian?

commented

This is an interesting idea. I try to set a more strict pruning rule during training to simulate the LightGaussian (not perfectly consistent). For simplicity, I set self.min_opacity to 0.005(original), 0.2, 0.5. The results on Tandt/truck are as follows:

image

With a more strict rule (larger min_opacity), Scaffold-GS enjoys a smaller storage and faster speed, at the sacrifice of LPIPS. This is just a simple and not very rigorous exploration, further conclusions are welcome in the future.