Standard every-Nth-frame holdouts in 3D scene reconstruction primarily measure near-trajectory interpolation, with a consistent 3-12 dB gap to matched-count contiguous spatial holdouts that persists across Gaussian, non-Gaussian, and NeRF representations.
Gottwald,et al.PRIMU: Uncertainty estimation for novel views in Gaussian Splatting from primitive-based representations of error and coverage.arXiv preprint arXiv:2508.02443, 2025
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Mind the Gap: Standard 3DGS Evaluation Primarily Measures Near-Trajectory Interpolation
Standard every-Nth-frame holdouts in 3D scene reconstruction primarily measure near-trajectory interpolation, with a consistent 3-12 dB gap to matched-count contiguous spatial holdouts that persists across Gaussian, non-Gaussian, and NeRF representations.