sfchng / Gaussian-Activated-Radiance-Fields

[ECCV 2022 Oral] GARF: Gaussian Activated Radiance Fields for High Fidelity Reconstruction & Pose Estimation
https://sfchng.github.io/garf/
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question for the paper: learnable sigma #5

Open robot0321 opened 1 year ago

robot0321 commented 1 year ago

Hi, I enjoy the series of papers published your group about Gaussain activation function applied in implicit neural representation. I hope to say thank you guys for the hard working. I really appreciate that your work may open another horizon for INR research, except the hyperparameter $\sigma$

The hyperparameter $\sigma$, which controls the Band Width of the signals outputed from Gaussian activation function, hinder me to utilize your novel idea to my next works. Because it is important to find a proper sigma, I wonder that it is feasible to make $\sigma$ as a learnable parameter. it may help to utilize the Gaussian activation function easily. Is there any ablation study about the learnable $\sigma$? (e.g. it does not converge easily, etc.) could I ask any experiments about that? Thank you for your time!