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Geometric deep learning is increasingly important thanks to the popularity of 3D sensors. Inspired by the recent advances in NLP domain, the self-attention transformer is introduced to consume the point clouds. We develop Point Attention…

Computer Vision and Pattern Recognition · Computer Science 2019-04-09 Jiancheng Yang , Qiang Zhang , Bingbing Ni , Linguo Li , Jinxian Liu , Mengdie Zhou , Qi Tian

Great progress has been made in point cloud classification with learning-based methods. However, complex scene and sensor inaccuracy in real-world application make point cloud data suffer from corruptions, such as occlusion, noise and…

Computer Vision and Pattern Recognition · Computer Science 2022-11-01 Lifa Zhu , Changwei Lin , Chen Zheng , Ninghua Yang

3D point cloud has been widely used in many mobile application scenarios, including autonomous driving and 3D sensing on mobile devices. However, existing 3D point cloud models tend to be large and cumbersome, making them hard to deploy on…

Computer Vision and Pattern Recognition · Computer Science 2024-03-01 Zhiyuan Yang , Yunjiao Zhou , Lihua Xie , Jianfei Yang

A point cloud is a crucial geometric data structure utilized in numerous applications. The adoption of deep neural networks referred to as Point Cloud Neural Networks (PC- NNs), for processing 3D point clouds, has significantly advanced…

Computer Vision and Pattern Recognition · Computer Science 2024-08-28 Amrijit Biswas , Md. Ismail Hossain , M M Lutfe Elahi , Ali Cheraghian , Fuad Rahman , Nabeel Mohammed , Shafin Rahman

Three-dimensional point cloud anomaly detection that aims to detect anomaly data points from a training set serves as the foundation for a variety of applications, including industrial inspection and autonomous driving. However, existing…

Computer Vision and Pattern Recognition · Computer Science 2024-03-05 Baozhu Zhao , Qiwei Xiong , Xiaohan Zhang , Jingfeng Guo , Qi Liu , Xiaofen Xing , Xiangmin Xu

Anomaly detection based on 3D point cloud data is an important research problem and receives more and more attention recently. Untrained anomaly detection based on only one sample is an emerging research problem motivated by real…

Machine Learning · Computer Science 2025-07-29 Juan Du , Dongheng Chen

In computer-aided design (CAD) community, the point cloud data is pervasively applied in reverse engineering, where the point cloud analysis plays an important role. While a large number of supervised learning methods have been proposed to…

Computer Vision and Pattern Recognition · Computer Science 2022-03-22 Cheng Zhang , Jian Shi , Xuan Deng , Zizhao Wu

3D surface reconstruction from point clouds is a key step in areas such as content creation, archaeology, digital cultural heritage, and engineering. Current approaches either try to optimize a non-data-driven surface representation to fit…

Computer Vision and Pattern Recognition · Computer Science 2024-02-09 Philipp Erler , Lizeth Fuentes , Pedro Hermosilla , Paul Guerrero , Renato Pajarola , Michael Wimmer

Point clouds are an increasingly relevant data type but they are often corrupted by noise. We propose a deep neural network based on graph-convolutional layers that can elegantly deal with the permutation-invariance problem encountered by…

Computer Vision and Pattern Recognition · Computer Science 2020-07-07 Francesca Pistilli , Giulia Fracastoro , Diego Valsesia , Enrico Magli

Point cloud analysis without pose priors is very challenging in real applications, as the orientations of point clouds are often unknown. In this paper, we propose a brand new point-set learning framework PRIN, namely, Point-wise Rotation…

Computer Vision and Pattern Recognition · Computer Science 2021-11-23 Yang You , Yujing Lou , Ruoxi Shi , Qi Liu , Yu-Wing Tai , Lizhuang Ma , Weiming Wang , Cewu Lu

In recent years, point cloud normal estimation, as a classical and foundational algorithm, has garnered extensive attention in the field of 3D geometric processing. Despite the remarkable performance achieved by current Neural Network-based…

Computer Vision and Pattern Recognition · Computer Science 2024-06-28 Jun Zhou , Yaoshun Li , Hongchen Tan , Mingjie Wang , Nannan Li , Xiuping Liu

This paper presents an end-to-end differentiable algorithm for robust and detail-preserving surface normal estimation on unstructured point-clouds. We utilize graph neural networks to iteratively parameterize an adaptive anisotropic kernel…

Computer Vision and Pattern Recognition · Computer Science 2020-06-24 Jan Eric Lenssen , Christian Osendorfer , Jonathan Masci

The ability to cope with out-of-distribution (OOD) corruptions and adversarial attacks is crucial in real-world safety-demanding applications. In this study, we develop a general mechanism to increase neural network robustness based on…

Computer Vision and Pattern Recognition · Computer Science 2024-03-13 Meir Yossef Levi , Guy Gilboa

Recovering dense and uniformly distributed point clouds from sparse or noisy data remains a significant challenge. Recently, great progress has been made on these tasks, but usually at the cost of increasingly intricate modules or…

Computer Vision and Pattern Recognition · Computer Science 2024-10-23 Jihe Li , Bo Pang , Peng-Shuai Wang

Deep Neural Networks (DNNs) for 3D point cloud recognition are vulnerable to adversarial examples, threatening their practical deployment. Despite the many research endeavors have been made to tackle this issue in recent years, the…

Computer Vision and Pattern Recognition · Computer Science 2023-08-11 Qiufan Ji , Lin Wang , Cong Shi , Shengshan Hu , Yingying Chen , Lichao Sun

3D object detection from point clouds plays a critical role in autonomous driving. Currently, the primary methods for point cloud processing are voxel-based and pillar-based approaches. Voxel-based methods offer high accuracy through…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Liu Qifeng , Zhao Dawei , Dong Yabo , Xiao Liang , Wang Juan , Min Chen , Li Fuyang , Jiang Weizhong , Lu Dongming , Nie Yiming

We present a novel attention-based mechanism to learn enhanced point features for point cloud processing tasks, e.g., classification and segmentation. Unlike prior works, which were trained to optimize the weights of a pre-selected set of…

Computer Vision and Pattern Recognition · Computer Science 2022-07-20 Liqiang Lin , Pengdi Huang , Chi-Wing Fu , Kai Xu , Hao Zhang , Hui Huang

3D point cloud semantic segmentation aims to group all points into different semantic categories, which benefits important applications such as point cloud scene reconstruction and understanding. Existing supervised point cloud semantic…

Computer Vision and Pattern Recognition · Computer Science 2023-03-29 Canyu Zhang , Zhenyao Wu , Xinyi Wu , Ziyu Zhao , Song Wang

While there are novel point cloud semantic segmentation schemes that continuously surpass state-of-the-art results, the success of learning an effective model usually rely on the availability of abundant labeled data. However, data…

Computer Vision and Pattern Recognition · Computer Science 2021-10-07 Puzuo Wang , Wei Yao

The annotation of 3D datasets is required for semantic-segmentation and object detection in scene understanding. In this paper we present a framework for the weakly supervision of a point clouds transformer that is used for 3D object…

Computer Vision and Pattern Recognition · Computer Science 2024-01-22 Zuojin Tang , Bo Sun , Tongwei Ma , Daosheng Li , Zhenhui Xu
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