ResearchResearch paperImage, Video & 3D Generation · Computer Vision1 source · Oct 7, 2026

PCAsplat: Gaussian Splatting with Local PCA Regularization

We introduce PCAsplat, a geometry-aware regularization framework for Gaussian splatting based on differentiable local principal component analysis (PCA).

Key points

  • Gaussian splatting has emerged as a flexible representation for 3D reconstruction from posed images.
  • We regularize the PCA eigenvalues to encourage Gaussians to move to the underlying surface with isotropic tangent-plane coverage.
  • These surface-aligned splats enable downstream geometry-processing tasks, including point cloud segmentation, and direct Poisson reconstruction.
  • Additionally, PCAsplat remains competitive under conventional novel view synthesis and mesh extraction tasks.

Sources (1)

  • [1]PCAsplat: Gaussian Splatting with Local PCA Regularization
    arXiv (AI, ML, NLP, CV, robotics, multi-agent) · Oct 7, 11:49 PM
    We introduce PCAsplat, a geometry-aware regularization framework for Gaussian splatting based on differentiable local principal component analysis (PCA).
    Gaussian splatting has emerged as a flexible representation for 3D reconstruction from posed images.

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