Selena Ling
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selenaling.bsky.social
Selena Ling
@selenaling.bsky.social
We show many more experiments across different implicit surface representations in our paper. Please check out our #SGP25 paper here arxiv.org/pdf/2506.05268 and reach out if you have any questions! Code coming soon! (9/9)
arxiv.org
June 10, 2025 at 2:40 PM
With uniformly sampled points, one can also easily perform importance sampling using curvature or other quantities like losses, and construct geometry-aware regularization terms to improve neural implicit optimization. (8/9)
June 10, 2025 at 2:40 PM
Our white noise samples are also essential for enabling neural implicit deformation as proposed in [Yang et al. 2021]. (7/9)
June 10, 2025 at 2:40 PM
A uniformly sampled set of points on implicit surfaces enables many downstream applications:

One can take our white noise samples and easily subsample to blue noise samples. (6/9)
June 10, 2025 at 2:40 PM
More specifically, sampling on extracted meshes from isosurfacing algorithms like Marching Cubes requires expensive evaluation to a grid and easily aliases thin structures, while our method is both efficient and accurate. (5/9)
June 10, 2025 at 2:40 PM
Our method is more efficient than the common alternatives: rejection sampling, sampling on extracted meshes via Marching Cubes, and a principled sampling algorithm using Markov chain Monte Carlo (e.g., Hamiltonian Monte Carlo). (4/9)
June 10, 2025 at 2:40 PM
Our method exploits a classic mathematical relationship: to sample a point set, gather all intersections of randomly-cast rays against the surface — and intersecting rays with implicit surfaces is easy! (3/9)
June 10, 2025 at 2:40 PM
Suppose you have an implicit surface, like a neural SDF or shadertoy-style analytic function, and you want to uniformly sample points on the surface 𝘄𝗶𝘁𝗵𝗼𝘂𝘁 lossy mesh extraction. (2/9)
June 10, 2025 at 2:40 PM