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Point cloud shape completion is a challenging problem in 3D vision and robotics. Existing learning-based frameworks leverage encoder-decoder architectures to recover the complete shape from a highly encoded global feature vector. Though the…

计算机视觉与模式识别 · 计算机科学 2020-07-07 Wenxiao Zhang , Qingan Yan , Chunxia Xiao

Scanning real-life scenes with modern registration devices typically give incomplete point cloud representations, mostly due to the limitations of the scanning process and 3D occlusions. Therefore, completing such partial representations…

计算机视觉与模式识别 · 计算机科学 2021-02-12 Przemysław Spurek , Artur Kasymov , Marcin Mazur , Diana Janik , Sławomir Tadeja , Łukasz Struski , Jacek Tabor , Tomasz Trzciński

In this paper we explore the recent topic of point cloud completion, guided by an auxiliary image. We show how it is possible to effectively combine the information from the two modalities in a localized latent space, thus avoiding the need…

计算机视觉与模式识别 · 计算机科学 2022-09-21 Emanuele Aiello , Diego Valsesia , Enrico Magli

3D point clouds directly collected from objects through sensors are often incomplete due to self-occlusion. Conventional methods for completing these partial point clouds rely on manually organized training sets and are usually limited to…

计算机视觉与模式识别 · 计算机科学 2025-01-27 Tianxin Huang , Zhiwen Yan , Yuyang Zhao , Gim Hee Lee

Point clouds captured in real-world applications are often incomplete due to the limited sensor resolution, single viewpoint, and occlusion. Therefore, recovering the complete point clouds from partial ones becomes an indispensable task in…

计算机视觉与模式识别 · 计算机科学 2021-08-20 Xumin Yu , Yongming Rao , Ziyi Wang , Zuyan Liu , Jiwen Lu , Jie Zhou

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

In this paper, we tackle the challenging problem of point cloud completion from the perspective of feature learning. Our key observation is that to recover the underlying structures as well as surface details, given partial input, a…

计算机视觉与模式识别 · 计算机科学 2022-09-15 Zejia Su , Haibin Huang , Chongyang Ma , Hui Huang , Ruizhen Hu

This paper presents PCDreamer, a novel method for point cloud completion. Traditional methods typically extract features from partial point clouds to predict missing regions, but the large solution space often leads to unsatisfactory…

计算机视觉与模式识别 · 计算机科学 2025-03-26 Guangshun Wei , Yuan Feng , Long Ma , Chen Wang , Yuanfeng Zhou , Changjian Li

Point cloud completion aims to recover the completed 3D shape of an object from its partial observation caused by occlusion, sensor's limitation, noise, etc. When some key semantic information is lost in the incomplete point cloud, the…

计算机视觉与模式识别 · 计算机科学 2025-02-03 Zhanpeng Luo , Linna Wang , Guangwu Qian , Li Lu

Given partial objects and some complete ones as references, point cloud completion aims to recover authentic shapes. However, existing methods pay little attention to general shapes, which leads to the poor authenticity of completion…

计算机视觉与模式识别 · 计算机科学 2023-03-21 Kaiyi Zhang , Ximing Yang , Yuan Wu , Cheng Jin

Point cloud completion has become increasingly popular among generation tasks of 3D point clouds, as it is a challenging yet indispensable problem to recover the complete shape of a 3D object from its partial observation. In this paper, we…

计算机视觉与模式识别 · 计算机科学 2022-07-22 Haoran Zhou , Yun Cao , Wenqing Chu , Junwei Zhu , Tong Lu , Ying Tai , Chengjie Wang

Point cloud completion aims to recover complete 3D geometry from partial observations caused by limited viewpoints and occlusions. Existing learning-based works, including 3D Convolutional Neural Network (CNN)-based, point-based, and…

计算机视觉与模式识别 · 计算机科学 2026-01-28 Jiangyuan Liu , Yuhao Zhao , Hongxuan Ma , Zhe Liu , Jian Wang , Wei Zou

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

3D scanning is a complex multistage process that generates a point cloud of an object typically containing damaged parts due to occlusions, reflections, shadows, scanner motion, specific properties of the object surface, imperfect…

计算机视觉与模式识别 · 计算机科学 2022-01-07 Taras Rumezhak , Oles Dobosevych , Rostyslav Hryniv , Vladyslav Selotkin , Volodymyr Karpiv , Mykola Maksymenko

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

This paper presents a view-guided solution for the task of point cloud completion. Unlike most existing methods directly inferring the missing points using shape priors, we address this task by introducing ViPC (view-guided point cloud…

计算机视觉与模式识别 · 计算机科学 2021-04-14 Xuancheng Zhang , Yutong Feng , Siqi Li , Changqing Zou , Hai Wan , Xibin Zhao , Yandong Guo , Yue Gao

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

When navigating in urban environments, many of the objects that need to be tracked and avoided are heavily occluded. Planning and tracking using these partial scans can be challenging. The aim of this work is to learn to complete these…

计算机视觉与模式识别 · 计算机科学 2021-11-23 Himangi Mittal , Brian Okorn , Arpit Jangid , David Held

LiDAR-based 3D object detection is an important task for autonomous driving and current approaches suffer from sparse and partial point clouds of distant and occluded objects. In this paper, we propose a novel two-stage approach, namely…

计算机视觉与模式识别 · 计算机科学 2020-12-23 Yanan Zhang , Di Huang , Yunhong Wang

Point cloud completion aims to recover partial geometric and topological shapes caused by equipment defects or limited viewpoints. Current methods either solely rely on the 3D coordinates of the point cloud to complete it or incorporate…

计算机视觉与模式识别 · 计算机科学 2024-12-12 Feng Zhou , Qi Zhang , Ju Dai , Lei Li , Qing Fan , Junliang Xing