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Point clouds obtained from capture devices or 3D reconstruction techniques are often noisy and interfere with downstream tasks. The paper aims to recover the underlying surface of noisy point clouds. We design a novel model, NoiseTrans,…

计算机视觉与模式识别 · 计算机科学 2023-04-25 Guangzhe Hou , Guihe Qin , Minghui Sun , Yanhua Liang , Jie Yan , Zhonghan Zhang

We introduce a novel technique for neural point cloud consolidation which learns from only the input point cloud. Unlike other point upsampling methods which analyze shapes via local patches, in this work, we learn from global subsets. We…

图形学 · 计算机科学 2022-05-16 Gal Metzer , Rana Hanocka , Raja Giryes , Daniel Cohen-Or

Real-world environment-derived point clouds invariably exhibit noise across varying modalities and intensities. Hence, point cloud denoising (PCD) is essential as a preprocessing step to improve downstream task performance. Deep learning…

计算机视觉与模式识别 · 计算机科学 2025-08-19 Chengwei Zhang , Xueyi Zhang , Mingrui Lao , Tao Jiang , Xinhao Xu , Wenjie Li , Fubo Zhang , Longyong Chen

In recent years, three-dimensional point clouds are used increasingly to document natural environments. Each dataset contains a diverse set of objects, at varying shapes and sizes, distributed throughout the data and intricately intertwined…

计算机视觉与模式识别 · 计算机科学 2024-08-27 Reuma Arav , Dennis Wittich , Franz Rottensteiner

Point cloud denoising task aims to recover the clean point cloud from the scanned data coupled with different levels or patterns of noise. The recent state-of-the-art methods often train deep neural networks to update the point locations…

计算机视觉与模式识别 · 计算机科学 2025-09-19 Zhaonan Wang , Manyi Li , ShiQing Xin , Changhe Tu

Self-supervised image denoising techniques emerged as convenient methods that allow training denoising models without requiring ground-truth noise-free data. Existing methods usually optimize loss metrics that are calculated from multiple…

We present a new paradigm for rigid alignment between point clouds based on learnable weighted consensus which is robust to noise as well as the full spectrum of the rotation group. Current models, learnable or axiomatic, work well for…

计算机视觉与模式识别 · 计算机科学 2021-05-07 Dvir Ginzburg , Dan Raviv

Recovering high-quality surfaces from irregular point cloud is ill-posed unless strong geometric priors are available. We introduce an implicit self-prior approach that distills a shape-specific prior directly from the input point cloud…

计算机视觉与模式识别 · 计算机科学 2025-11-13 Kyle Fogarty , Chenyue Cai , Jing Yang , Zhilin Guo , Cengiz Öztireli

This paper presents a novel non-local part-aware deep neural network to denoise point clouds by exploring the inherent non-local self-similarity in 3D objects and scenes. Different from existing works that explore small local patches, we…

计算机视觉与模式识别 · 计算机科学 2020-03-17 Chao Huang , Ruihui Li , Xianzhi Li , Chi-Wing Fu

Building on recent advances in Bayesian statistics and image denoising, we propose Noise2Score3D, a fully unsupervised framework for point cloud denoising. Noise2Score3D learns the score function of the underlying point cloud distribution…

计算机视觉与模式识别 · 计算机科学 2025-10-08 Xiangbin Wei , Yuanfeng Wang , Ao XU , Lingyu Zhu , Dongyong Sun , Keren Li , Yang Li , Qi Qin

Point cloud denoising aims to restore clean point clouds from raw observations corrupted by noise and outliers while preserving the fine-grained details. We present a novel deep learning-based denoising model, that incorporates normalizing…

计算机视觉与模式识别 · 计算机科学 2022-07-26 Aihua Mao , Zihui Du , Yu-Hui Wen , Jun Xuan , Yong-Jin Liu

Point cloud filtering is a fundamental problem in geometry modeling and processing. Despite of significant advancement in recent years, the existing methods still suffer from two issues: 1) they are either designed without preserving sharp…

图形学 · 计算机科学 2020-09-29 Dongbo Zhang , Xuequan Lu , Hong Qin , Ying He

The prevalence of accessible depth sensing and 3D laser scanning techniques has enabled the convenient acquisition of 3D dynamic point clouds, which provide efficient representation of arbitrarily-shaped objects in motion. Nevertheless,…

计算机视觉与模式识别 · 计算机科学 2020-04-10 Wei Hu , Qianjiang Hu , Zehua Wang , Xiang Gao

Place recognition gives a SLAM system the ability to correct cumulative errors. Unlike images that contain rich texture features, point clouds are almost pure geometric information which makes place recognition based on point clouds…

计算机视觉与模式识别 · 计算机科学 2021-07-13 Lin Li , Xin Kong , Xiangrui Zhao , Tianxin Huang , Yong Liu

Noise suppression is an essential step in any seismic processing workflow. A portion of this noise, particularly in land datasets, presents itself as random noise. In recent years, neural networks have been successfully used to denoise…

地球物理 · 物理学 2021-09-16 Claire Birnie , Matteo Ravasi , Tariq Alkhalifah , Sixiu Liu

Designing a point cloud upsampler, which aims to generate a clean and dense point cloud given a sparse point representation, is a fundamental and challenging problem in computer vision. A line of attempts achieves this goal by establishing…

计算机视觉与模式识别 · 计算机科学 2023-12-05 Pingping Cai , Zhenyao Wu , Xinyi Wu , Song Wang

Recovering high quality surfaces from noisy point clouds, known as point cloud denoising, is a fundamental yet challenging problem in geometry processing. Most of the existing methods either directly denoise the noisy input or filter raw…

计算机视觉与模式识别 · 计算机科学 2023-07-04 Zheng Liu , Yaowu Zhao , Sijing Zhan , Yuanyuan Liu , Renjie Chen , Ying He

Coherent noise regularly plagues seismic recordings, causing artefacts and uncertainties in products derived from down-the-line processing and imaging tasks. The outstanding capabilities of deep learning in denoising of natural and medical…

地球物理 · 物理学 2022-06-02 Sixiu Liu , Claire Birnie , Tariq Alkhalifah

Recent progress of semantic point clouds analysis is largely driven by synthetic data (e.g., the ModelNet and the ShapeNet), which are typically complete, well-aligned and noisy free. Therefore, representations of those ideal synthetic…

计算机视觉与模式识别 · 计算机科学 2024-09-12 Li Yu , Hongchao Zhong , Longkun Zou , Ke Chen , Pan Gao

Rigid point cloud registration is a fundamental problem and highly relevant in robotics and autonomous driving. Nowadays deep learning methods can be trained to match a pair of point clouds, given the transformation between them. However,…

计算机视觉与模式识别 · 计算机科学 2024-09-13 Christian Löwens , Thorben Funke , André Wagner , Alexandru Paul Condurache