Get 3D scene by removing redundant or inaccurate Gaussians and keeping small Gaussians with TrimGS
Get 3D scene by removing redundant or inaccurate Gaussians and keeping small Gaussians with TrimGS
Trim 3D Gaussian Splatting for Accurate Geometry Representation
arXiv paper abstract https://arxiv.org/abs/2406.07499
arXiv PDF paper https://arxiv.org/pdf/2406.07499
Project page https://trimgs.github.io
… introduce Trim 3D Gaussian Splatting (TrimGS) to reconstruct accurate 3D geometry from images.
… propose to obtain accurate 3D geometry of a scene by Gaussian trimming, which selectively removes the inaccurate geometry while preserving accurate structures.
… analyze the contributions of individual 3D Gaussians and propose a contribution-based trimming strategy to remove the redundant or inaccurate Gaussians.
… experimental and theoretical analyses reveal that a relatively small Gaussian scale is a non-negligible factor in representing and optimizing the intricate details.
Therefore … TrimGS maintains relatively small Gaussian scales. In addition, TrimGS is also compatible with the effective geometry regularization strategies in previous arts.
When combined with the original 3DGS and the state-of-the-art 2DGS, TrimGS consistently yields more accurate geometry and higher perceptual quality …
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