[Submitted on 28 Oct 2026]
Title:PointNDF: Cascaded Neural Displacement Fields for Point Cloud Denoising
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Abstract:Point cloud denoising aims to recover clean geometry from noisy 3D observations while preserving both fine surface details and the underlying spatial distribution of the points. Many learning-based methods adopt a two-stage pipeline that first extracts point-wise features from the noisy input and subsequently predicts point-wise displacements via simple regressions. However, these approaches often lack robust feature guidance and distribution-aware geometric refinement, causing them to fail at maintaining optimal point uniformity and geometric quality. To address these limitations, we propose PointNDF, a denoising framework that combines patch-level geometric context with local displacement prediction. Specifically, a Point Transformer V3 (PTv3) encoder aggregates multiscale geometric information into a global patch descriptor. Rather than directly regressing an unconstrained displacement vector, a Neural Displacement Field (NDF) fuses this global patch descriptor with per-point neighborhood features. It then predicts each displacement through bounded-vector and scale factor branches, thereby achieving a superior, more uniform point distribution. Three cascaded NDF stages propagate local features and progressively refine the point positions. Experiments on PU-Net and ModelNet10 demonstrate competitive denoising accuracy and favorable inference efficiency. The source code is publicly available at this https URL.
Comments: 14 pages, 3 figures, 7 tables. Accepted to MMM 2027 (33rd International Conference on Multimedia Modeling)
Subjects:
Computer Vision and Pattern Recognition (cs.CV)
Cite as: arXiv:2611.05411 [cs.CV]
(or arXiv:2611.05411v1 [cs.CV] for this version)
https://doi.org/10.48550/arXiv.2611.05411
arXiv-issued DOI via DataCite
Submission history
From: Michael Wang [view email] [v1] Wed, 28 Oct 2026 03:38:36 UTC (1,545 KB)
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