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In this paper, we propose a novel network, SVDFormer, to tackle two specific challenges in point cloud completion: understanding faithful global shapes from incomplete point clouds and generating high-accuracy local structures. Current…

计算机视觉与模式识别 · 计算机科学 2023-08-15 Zhe Zhu , Honghua Chen , Xing He , Weiming Wang , Jing Qin , Mingqiang Wei

The rapid development of point cloud learning has driven point cloud completion into a new era. However, the information flows of most existing completion methods are solely feedforward, and high-level information is rarely reused to…

计算机视觉与模式识别 · 计算机科学 2022-10-11 Xuejun Yan , Hongyu Yan , Jingjing Wang , Hang Du , Zhihong Wu , Di Xie , Shiliang Pu , Li Lu

Point-cloud data collected in real-world applications are often incomplete. Data is typically missing due to objects being observed from partial viewpoints, which only capture a specific perspective or angle. Additionally, data can be…

计算机视觉与模式识别 · 计算机科学 2023-06-21 Yoni Kasten , Ohad Rahamim , Gal Chechik

In the practical application of point cloud completion tasks, real data quality is usually much worse than the CAD datasets used for training. A small amount of noisy data will usually significantly impact the overall system's accuracy. In…

计算机视觉与模式识别 · 计算机科学 2023-03-06 Jieqi Shi , Peiliang Li , Xiaozhi Chen , Shaojie Shen

Real-scanned point clouds are often incomplete due to viewpoint, occlusion, and noise. Existing point cloud completion methods tend to generate global shape skeletons and hence lack fine local details. Furthermore, they mostly learn a…

计算机视觉与模式识别 · 计算机科学 2021-04-21 Liang Pan , Xinyi Chen , Zhongang Cai , Junzhe Zhang , Haiyu Zhao , Shuai Yi , Ziwei Liu

Point cloud completion aims to reconstruct complete 3D shapes from partial 3D point clouds. With advancements in deep learning techniques, various methods for point cloud completion have been developed. Despite achieving encouraging…

计算机视觉与模式识别 · 计算机科学 2025-01-22 Qiuxia Wu , Haiyang Huang , Kunming Su , Zhiyong Wang , Kun Hu

Point cloud completion is a fundamental yet not well-solved problem in 3D vision. Current approaches often rely on 3D coordinate information and/or additional data (e.g., images and scanning viewpoints) to fill in missing parts. Unlike…

计算机视觉与模式识别 · 计算机科学 2025-02-27 Zhe Zhu , Honghua Chen , Xing He , Mingqiang Wei

Point cloud completion aims to infer a complete shape from its partial observation. Many approaches utilize a pure encoderdecoder paradigm in which complete shape can be directly predicted by shape priors learned from partial scans,…

计算机视觉与模式识别 · 计算机科学 2024-11-25 Zizhao Wu , Jian Shi , Xuan Deng , Cheng Zhang , Genfu Yang , Ming Zeng , Yunhai Wang

Point clouds are a fundamental 3D representation in computer vision, enabling a wide range of perception tasks. However, real-world point clouds often suffer from degradations such as incompleteness, noise, outliers, and irregular density,…

计算机视觉与模式识别 · 计算机科学 2026-05-26 Haoqing Wu , Alexa Nawotki , Jochen Garcke

Shape completion, the problem of estimating the complete geometry of objects from partial observations, lies at the core of many vision and robotics applications. In this work, we propose Point Completion Network (PCN), a novel…

计算机视觉与模式识别 · 计算机科学 2019-09-30 Wentao Yuan , Tejas Khot , David Held , Christoph Mertz , Martial Hebert

Completing an unordered partial point cloud is a challenging task. Existing approaches that rely on decoding a latent feature to recover the complete shape, often lead to the completed point cloud being over-smoothing, losing details, and…

计算机视觉与模式识别 · 计算机科学 2021-12-23 Ren-Wu Li , Bo Wang , Chun-Peng Li , Ling-Xiao Zhang , Lin Gao

Self-supervised learning has not been fully explored for point cloud analysis. Current frameworks are mainly based on point cloud reconstruction. Given only 3D coordinates, such approaches tend to learn local geometric structures and…

计算机视觉与模式识别 · 计算机科学 2022-03-29 Mingye Xu , Yali Wang , Zhipeng Zhou , Hongbin Xu , Yu Qiao

Single-view point cloud completion aims to recover the full geometry of an object based on only limited observation, which is extremely hard due to the data sparsity and occlusion. The core challenge is to generate plausible geometries to…

计算机视觉与模式识别 · 计算机科学 2022-10-05 Bowen Zhang , Xi Zhao , He Wang , Ruizhen Hu

The task of point cloud completion aims to predict the missing part for an incomplete 3D shape. A widely used strategy is to generate a complete point cloud from the incomplete one. However, the unordered nature of point clouds will degrade…

计算机视觉与模式识别 · 计算机科学 2021-06-15 Xin Wen , Peng Xiang , Zhizhong Han , Yan-Pei Cao , Pengfei Wan , Wen Zheng , Yu-Shen Liu

Real-world sensors often produce incomplete, irregular, and noisy point clouds, making point cloud completion increasingly important. However, most existing completion methods rely on large paired datasets for training, which is…

计算机视觉与模式识别 · 计算机科学 2023-07-25 Zhaoxin Fan , Yulin He , Zhicheng Wang , Kejian Wu , Hongyan Liu , Jun He

Point completion refers to complete the missing geometries of objects from partial point clouds. Existing works usually estimate the missing shape by decoding a latent feature encoded from the input points. However, real-world objects are…

计算机视觉与模式识别 · 计算机科学 2020-10-16 Yinyu Nie , Yiqun Lin , Xiaoguang Han , Shihui Guo , Jian Chang , Shuguang Cui , Jian Jun Zhang

Point cloud completion referring to completing 3D shapes from partial 3D point clouds is a fundamental problem for 3D point cloud analysis tasks. Benefiting from the development of deep neural networks, researches on point cloud completion…

计算机视觉与模式识别 · 计算机科学 2022-03-17 Jun Wang , Ying Cui , Dongyan Guo , Junxia Li , Qingshan Liu , Chunhua Shen

This paper introduces a data-driven shape completion approach that focuses on completing geometric details of missing regions of 3D shapes. We observe that existing generative methods lack the training data and representation capacity to…

计算机视觉与模式识别 · 计算机科学 2022-07-26 Bo Sun , Vladimir G. Kim , Noam Aigerman , Qixing Huang , Siddhartha Chaudhuri

In view of the difficulty in reconstructing object details in point cloud completion, we propose a shape prior learning method for object completion. The shape priors include geometric information in both complete and the partial point…

计算机视觉与模式识别 · 计算机科学 2021-07-16 Xiaogang Wang , Marcelo H Ang , Gim Hee Lee

The growing size of point clouds enlarges consumptions of storage, transmission, and computation of 3D scenes. Raw data is redundant, noisy, and non-uniform. Therefore, simplifying point clouds for achieving compact, clean, and uniform…

计算机视觉与模式识别 · 计算机科学 2022-03-18 Yuanqi Li , Jianwei Guo , Xinran Yang , Shun Liu , Jie Guo , Xiaopeng Zhang , Yanwen Guo