Get 3D scene by using signed distance field within 3D Gaussians with 3DGSR
Get 3D scene by using signed distance field within 3D Gaussians with 3DGSR
3DGSR: Implicit Surface Reconstruction with 3D Gaussian Splatting
arXiv paper abstract https://arxiv.org/abs/2404.00409
arXiv PDF paper https://arxiv.org/pdf/2404.00409.pdf
... present an implicit surface reconstruction method with 3D Gaussian Splatting (3DGS), namely 3DGSR, that allows for accurate 3D reconstruction with intricate details while inheriting the high efficiency and rendering quality of 3DGS.
The key insight is incorporating an implicit signed distance field (SDF) within 3D Gaussians to enable them to be aligned and jointly optimized.
... introduce a differentiable SDF-to-opacity transformation function that converts SDF values into corresponding Gaussians' opacities.
This function connects the SDF and 3D Gaussians, allowing for unified optimization and enforcing surface constraints on the 3D Gaussians.
During learning, optimizing the 3D Gaussians provides supervisory signals for SDF learning, enabling the reconstruction of intricate details.
... extensive experimental results demonstrate that ... 3DGSR method enables high-quality 3D surface reconstruction while preserving the efficiency and rendering quality of 3DGS ...
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