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相关论文: Self-Supervised Large Scale Point Cloud Completion…

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As real-scanned point clouds are mostly partial due to occlusions and viewpoints, reconstructing complete 3D shapes based on incomplete observations becomes a fundamental problem for computer vision. With a single incomplete point cloud, it…

Key points, correspondences, projection matrices, point clouds and dense clouds are the skeletons in image-based 3D reconstruction, of which point clouds have the important role in generating a realistic and natural model for a 3D…

计算机视觉与模式识别 · 计算机科学 2022-06-20 Trung-Kien Le , Ping Li

Partial dental point clouds often suffer from large missing regions caused by occlusion and limited scanning views, which bias encoder-only global features and force decoders to hallucinate structures. We propose a retrieval-augmented…

计算机视觉与模式识别 · 计算机科学 2025-12-04 Jianan Sun , Yukang Huang , Dongzhihan Wang , Mingyu Fan

In this paper, we propose a Point Fractal Network (PF-Net), a novel learning-based approach for precise and high-fidelity point cloud completion. Unlike existing point cloud completion networks, which generate the overall shape of the point…

计算机视觉与模式识别 · 计算机科学 2020-03-03 Zitian Huang , Yikuan Yu , Jiawen Xu , Feng Ni , Xinyi Le

The reconstruction of real-world surfaces is on high demand in various applications. Most existing reconstruction approaches apply 3D scanners for creating point clouds which are generally sparse and of low density. These points clouds will…

计算机视觉与模式识别 · 计算机科学 2021-03-01 Rajat Sharma , Tobias Schwandt , Christian Kunert , Steffen Urban , Wolfgang Broll

Point cloud completion aims to predict a complete shape in high accuracy from its partial observation. However, previous methods usually suffered from discrete nature of point cloud and unstructured prediction of points in local regions,…

计算机视觉与模式识别 · 计算机科学 2021-10-28 Peng Xiang , Xin Wen , Yu-Shen Liu , Yan-Pei Cao , Pengfei Wan , Wen Zheng , Zhizhong Han

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

The common occurrence of occlusion-induced incompleteness in point clouds has made point cloud completion (PCC) a highly-concerned task in the field of geometric processing. Existing PCC methods typically produce complete point clouds from…

计算机视觉与模式识别 · 计算机科学 2024-12-12 Jisheng Chu , Wenrui Li , Xingtao Wang , Kanglin Ning , Yidan Lu , Xiaopeng Fan

Manual annotation of large-scale point cloud dataset for varying tasks such as 3D object classification, segmentation and detection is often laborious owing to the irregular structure of point clouds. Self-supervised learning, which…

计算机视觉与模式识别 · 计算机科学 2022-03-25 Mohamed Afham , Isuru Dissanayake , Dinithi Dissanayake , Amaya Dharmasiri , Kanchana Thilakarathna , Ranga Rodrigo

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…

计算机视觉与模式识别 · 计算机科学 2022-03-16 Jaesung Choe , Byeongin Joung , Francois Rameau , Jaesik Park , In So Kweon

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…

计算机视觉与模式识别 · 计算机科学 2022-09-07 Junshu Tang , Jiachen Xu , Jingyu Gong , Haichuan Song , Yuan Xie , Lizhuang Ma

Point cloud completion aims at completing geometric and topological shapes from a partial observation. However, some topology of the original shape is missing, existing methods directly predict the location of complete points, without…

计算机视觉与模式识别 · 计算机科学 2022-04-01 Junshu Tang , Zhijun Gong , Ran Yi , Yuan Xie , Lizhuang Ma

Point cloud completion seeks to recover geometrically consistent shapes from partial or sparse 3D observations. Although recent methods have achieved reasonable global shape reconstruction, they often rely on Euclidean proximity and…

计算机视觉与模式识别 · 计算机科学 2025-12-08 Jianan Sun , Dongzhihan Wang , Mingyu Fan

Pseudo-LiDAR point cloud interpolation is a novel and challenging task in the field of autonomous driving, which aims to address the frequency mismatching problem between camera and LiDAR. Previous works represent the 3D spatial motion…

计算机视觉与模式识别 · 计算机科学 2020-06-23 Haojie Liu , Kang Liao , Chunyu Lin , Yao Zhao , Yulan Guo

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

Reconstruction of geometric structures from images using supervised learning suffers from limited available amount of accurate data. One type of such data is accurate real-world RGB-D images. A major challenge in acquiring such ground truth…

计算机视觉与模式识别 · 计算机科学 2022-04-13 Noam Rotstein , Amit Bracha , Ron Kimmel

Scanning real-life scenes with modern registration devices typically gives incomplete point cloud representations, primarily due to the limitations of partial scanning, 3D occlusions, and dynamic light conditions. Recent works on processing…

计算机视觉与模式识别 · 计算机科学 2024-04-15 Haipeng Wang

A 3D point cloud is often synthesized from depth measurements collected by sensors at different viewpoints. The acquired measurements are typically both coarse in precision and corrupted by noise. To improve quality, previous works denoise…

图像与视频处理 · 电气工程与系统科学 2020-02-12 Xue Zhang , Gene Cheung , Jiahao Pang , Dong Tian

This paper focuses on the recently popular task of point cloud completion guided by multimodal information. Although existing methods have achieved excellent performance by fusing auxiliary images, there are still some deficiencies,…

计算机视觉与模式识别 · 计算机科学 2023-08-21 Wei Song , Jun Zhou , Mingjie Wang , Hongchen Tan , Nannan Li , Xiuping Liu

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