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Point cloud completion, which aims at recovering original shape information from partial point clouds, has attracted attention on 3D vision community. Existing methods usually succeed in completion for standard shape, while failing to…

Computer Vision and Pattern Recognition · Computer Science 2022-09-07 Junshu Tang , Jiachen Xu , Jingyu Gong , Haichuan Song , Yuan Xie , Lizhuang Ma

Point cloud completion aims to recover accurate global geometry and preserve fine-grained local details from partial point clouds. Conventional methods typically predict unseen points directly from 3D point cloud coordinates or use…

Computer Vision and Pattern Recognition · Computer Science 2024-08-14 Jinpeng Yu , Binbin Huang , Yuxuan Zhang , Huaxia Li , Xu Tang , Shenghua Gao

One major challenge in 3D reconstruction is to infer the complete shape geometry from partial foreground occlusions. In this paper, we propose a method to reconstruct the complete 3D shape of an object from a single RGB image, with…

Computer Vision and Pattern Recognition · Computer Science 2019-07-30 Chuhang Zou , Derek Hoiem

In real-world scenarios, scanned point clouds are often incomplete due to occlusion issues. The tasks of self-supervised and weakly-supervised point cloud completion involve reconstructing missing regions of these incomplete objects without…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Lintai Wu , Xianjing Cheng , Yong Xu , Huanqiang Zeng , Junhui Hou

We describe a simple pre-training approach for point clouds. It works in three steps: 1. Mask all points occluded in a camera view; 2. Learn an encoder-decoder model to reconstruct the occluded points; 3. Use the encoder weights as…

Computer Vision and Pattern Recognition · Computer Science 2021-10-15 Hanchen Wang , Qi Liu , Xiangyu Yue , Joan Lasenby , Matthew J. Kusner

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…

Computer Vision and Pattern Recognition · Computer Science 2021-02-12 Przemysław Spurek , Artur Kasymov , Marcin Mazur , Diana Janik , Sławomir Tadeja , Łukasz Struski , Jacek Tabor , Tomasz Trzciński

Point cloud obtained from 3D scanning is often sparse, noisy, and irregular. To cope with these issues, recent studies have been separately conducted to densify, denoise, and complete inaccurate point cloud. In this paper, we advocate that…

Computer Vision and Pattern Recognition · Computer Science 2022-03-16 Jaesung Choe , Byeongin Joung , Francois Rameau , Jaesik Park , In So Kweon

Point cloud completion concerns to predict missing part for incomplete 3D shapes. A common strategy is to generate complete shape according to incomplete input. However, unordered nature of point clouds will degrade generation of…

Computer Vision and Pattern Recognition · Computer Science 2022-03-01 Xin Wen , Peng Xiang , Zhizhong Han , Yan-Pei Cao , Pengfei Wan , Wen Zheng , Yu-Shen Liu

Most existing point cloud completion methods are only applicable to partial point clouds without any noises and outliers, which does not always hold in practice. We propose in this paper an end-to-end network, named CS-Net, to complete the…

Computer Vision and Pattern Recognition · Computer Science 2022-03-21 Changfeng Ma , Yang Yang , Jie Guo , Chongjun Wang , Yanwen Guo

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…

Computer Vision and Pattern Recognition · Computer Science 2022-09-15 Zejia Su , Haibin Huang , Chongyang Ma , Hui Huang , Ruizhen Hu

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…

Computer Vision and Pattern Recognition · Computer Science 2025-01-27 Tianxin Huang , Zhiwen Yan , Yuyang Zhao , Gim Hee Lee

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…

Computer Vision and Pattern Recognition · Computer Science 2026-01-28 Jiangyuan Liu , Yuhao Zhao , Hongxuan Ma , Zhe Liu , Jian Wang , Wei Zou

Point cloud completion aims to generate a complete and high-fidelity point cloud from an initially incomplete and low-quality input. A prevalent strategy involves leveraging Transformer-based models to encode global features and facilitate…

Computer Vision and Pattern Recognition · Computer Science 2026-05-20 Yixuan Li , Weidong Yang , Ben Fei

Point cloud completion is a generation and estimation issue derived from the partial point clouds, which plays a vital role in the applications in 3D computer vision. The progress of deep learning (DL) has impressively improved the…

Computer Vision and Pattern Recognition · Computer Science 2023-01-02 Ben Fei , Weidong Yang , Wenming Chen , Zhijun Li , Yikang Li , Tao Ma , Xing Hu , Lipeng Ma

Point cloud completion task aims to predict the missing part of incomplete point clouds and generate complete point clouds with details. In this paper, we propose a novel point cloud completion network, namely CompleteDT. Specifically,…

Computer Vision and Pattern Recognition · Computer Science 2022-06-13 Jun Li , Shangwei Guo , Shaokun Han

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,…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Haoqing Wu , Alexa Nawotki , Jochen Garcke

Tooth point cloud segmentation is a fundamental task in many orthodontic applications. Current research mainly focuses on fully supervised learning which demands expensive and tedious manual point-wise annotation. Although recent…

Computer Vision and Pattern Recognition · Computer Science 2024-09-04 Yifan Liu , Wuyang Li , Cheng Wang , Hui Chen , Yixuan Yuan

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…

Computer Vision and Pattern Recognition · Computer Science 2022-03-17 Jun Wang , Ying Cui , Dongyan Guo , Junxia Li , Qingshan Liu , Chunhua Shen

Occlusions are very common in face images in the wild, leading to the degraded performance of face-related tasks. Although much effort has been devoted to removing occlusions from face images, the varying shapes and textures of occlusions…

Computer Vision and Pattern Recognition · Computer Science 2021-12-16 Xiangnan Yin , Di Huang , Zehua Fu , Yunhong Wang , Liming Chen

We challenge the common assumption that deeper decoder architectures always yield better performance in point cloud reconstruction. Our analysis reveals that, beyond a certain depth, increasing decoder complexity leads to overfitting and…

Computer Vision and Pattern Recognition · Computer Science 2025-05-27 Pedro Alonso , Tianrui Li , Chongshou Li