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Point cloud source data for surface reconstruction is usually contaminated with noise and outliers. To overcome this deficiency, a density-based point cloud denoising method is presented to remove outliers and noisy points. First,…

计算机视觉与模式识别 · 计算机科学 2016-02-18 Faisal Zaman , Ya Ping Wong , Boon Yian Ng

Multibeam echo-sounder (MBES) is the de-facto sensor for bathymetry mapping. In recent years, cheaper MBES sensors and global mapping initiatives have led to exponential growth of available data. However, raw MBES data contains 1-25% of…

机器学习 · 计算机科学 2024-09-23 Li Ling , Yiping Xie , Nils Bore , John Folkesson

Though a number of point cloud learning methods have been proposed to handle unordered points, most of them are supervised and require labels for training. By contrast, unsupervised learning of point cloud data has received much less…

计算机视觉与模式识别 · 计算机科学 2023-01-25 Jincen Jiang , Xuequan Lu , Wanli Ouyang , Meili Wang

Over the past two decades, we have seen an exponentially increased amount of point clouds collected with irregular shapes in various areas. Motivated by the importance of solid modeling for point clouds, we develop a novel and efficient…

统计计算 · 统计学 2023-02-21 Xinyi Li , Shan Yu , Yueying Wang , Guannan Wang , Ming-Jun Lai , Li Wang

We introduce ModelNet40-E, a new benchmark designed to assess the robustness and calibration of point cloud classification models under synthetic LiDAR-like noise. Unlike existing benchmarks, ModelNet40-E provides both noise-corrupted point…

计算机视觉与模式识别 · 计算机科学 2025-09-30 Pedro Alonso , Tianrui Li , Chongshou Li

3D dynamic point clouds provide a discrete representation of real-world objects or scenes in motion, which have been widely applied in immersive telepresence, autonomous driving, surveillance, etc. However, point clouds acquired from…

计算机视觉与模式识别 · 计算机科学 2022-04-20 Qianjiang Hu , Wei Hu

Seismic data denoising is an important part of seismic data processing, which directly relate to the follow-up processing of seismic data. In terms of this issue, many authors proposed many methods based on rank reduction, sparse…

地球物理 · 物理学 2024-08-27 Xueting Yang , Yong Li , Zhangquan Liao , Yingtian Liu , Junheng Peng

Visual imitation learning with 3D point clouds has advanced robotic manipulation by providing geometry-aware, appearance-invariant observations. However, point cloud-based policies remain highly sensitive to sensor noise, pose…

机器人学 · 计算机科学 2026-01-27 Zhiyuan Zhang , Yu She

Real noisy-clean pairs on a large scale are costly and difficult to obtain. Meanwhile, supervised denoisers trained on synthetic data perform poorly in practice. Self-supervised denoisers, which learn only from single noisy images, solve…

图像与视频处理 · 电气工程与系统科学 2023-05-09 Zejin Wang , Jiazheng Liu , Guoqing Li , Hua Han

Estimating normals for noisy point clouds is a persistent challenge in 3D geometry processing, particularly for end-to-end oriented normal estimation. Existing methods generally address relatively clean data and rely on supervised priors to…

计算机视觉与模式识别 · 计算机科学 2025-11-27 Qing Li , Huifang Feng , Xun Gong , Yu-Shen Liu

Recently, many self-supervised learning methods for image reconstruction have been proposed that can learn from noisy data alone, bypassing the need for ground-truth references. Most existing methods cluster around two classes: i) Stein's…

机器学习 · 统计学 2025-02-12 Julián Tachella , Mike Davies , Laurent Jacques

This paper presents a novel self-supervised approach to reconstruct human shape and pose from noisy point cloud data. Relying on large amount of dataset with ground-truth annotations, recent learning-based approaches predict correspondences…

计算机视觉与模式识别 · 计算机科学 2021-11-30 Xinxin Zuo , Sen Wang , Qiang Sun , Minglun Gong , Li Cheng

Self-supervised frameworks that learn denoising models with merely individual noisy images have shown strong capability and promising performance in various image denoising tasks. Existing self-supervised denoising frameworks are mostly…

计算机视觉与模式识别 · 计算机科学 2020-10-26 Yaochen Xie , Zhengyang Wang , Shuiwang Ji

Existing deep learning methods for the reconstruction and denoising of point clouds rely on small datasets of 3D shapes. We circumvent the problem by leveraging deep learning methods trained on billions of images. We propose a method to…

计算机视觉与模式识别 · 计算机科学 2024-04-25 Pietro Bonazzi , Marie-Julie Rakatosaona , Marco Cannici , Federico Tombari , Davide Scaramuzza

We present a method for training a neural network to perform image denoising without access to clean training examples or access to paired noisy training examples. Our method requires only a single noisy realization of each training example…

图像与视频处理 · 电气工程与系统科学 2019-10-29 Nick Moran , Dan Schmidt , Yu Zhong , Patrick Coady

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

Supervised training for real-world denoising presents challenges due to the difficulty of collecting large datasets of paired noisy and clean images. Recent methods have attempted to address this by utilizing unpaired datasets of clean and…

计算机视觉与模式识别 · 计算机科学 2025-03-28 Hamadi Chihaoui , Paolo Favaro

Today, Convolutional Neural Networks (CNNs) are the leading method for image denoising. They are traditionally trained on pairs of images, which are often hard to obtain for practical applications. This motivates self-supervised training…

图像与视频处理 · 电气工程与系统科学 2020-12-21 Alexander Krull , Tomas Vicar , Florian Jug

We propose a novel self-supervised image blind denoising approach in which two neural networks jointly predict the clean signal and infer the noise distribution. Assuming that the noisy observations are independent conditionally to the…

机器学习 · 计算机科学 2021-02-17 Jean Ollion , Charles Ollion , Elisabeth Gassiat , Luc Lehéricy , Sylvain Le Corff

Recovering a high-quality image from noisy indirect measurements is an important problem with many applications. For such inverse problems, supervised deep convolutional neural network (CNN)-based denoising methods have shown strong…

图像与视频处理 · 电气工程与系统科学 2020-09-16 Allard A. Hendriksen , Daniel M. Pelt , K. Joost Batenburg