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3D reconstruction from images is a core problem in computer vision. With recent advances in deep learning, it has become possible to recover plausible 3D shapes even from single RGB images for the first time. However, obtaining detailed…

计算机视觉与模式识别 · 计算机科学 2019-12-24 Tao Hu , Geng Lin , Zhizhong Han , Matthias Zwicker

The prevalence of real-world multi-view data makes incomplete multi-view clustering (IMVC) a crucial research. The rapid development of Graph Neural Networks (GNNs) has established them as one of the mainstream approaches for multi-view…

Graph Convolutional Networks (GCNs) have attracted more and more attentions in recent years. A typical GCN layer consists of a linear feature propagation step and a nonlinear transformation step. Recent works show that a linear GCN can…

机器学习 · 计算机科学 2021-10-29 Yifei Wang , Yisen Wang , Jiansheng Yang , Zhouchen Lin

Graph Convolutional Networks (GCNs) have proven to be successful tools for semi-supervised classification on graph-based datasets. We propose a new GCN variant whose three-part filter space is targeted at dense graphs. Examples include…

机器学习 · 计算机科学 2021-01-29 Dominik Alfke , Martin Stoll

Short-term passenger flow forecasting is a crucial task for urban rail transit operations. Emerging deep-learning technologies have become effective methods used to overcome this problem. In this study, the authors propose a deep-learning…

物理与社会 · 物理学 2020-08-12 Jinlei Zhang , Feng Chen , Yinan Guo , Xiaohong Li

Point clouds captured by depth sensors are often contaminated by noises, obstructing further analysis and applications. In this paper, we emphasize the importance of point distribution uniformity to downstream tasks. We demonstrate that…

计算机视觉与模式识别 · 计算机科学 2022-07-22 Tian-Xing Xu , Yuan-Chen Guo , Yong-Liang Yang , Song-Hai Zhang

This paper investigates an open research task of reconstructing and generating 3D point clouds. Most existing works of 3D generative models directly take the Gaussian prior as input for the decoder to generate 3D point clouds, which fail to…

计算机视觉与模式识别 · 计算机科学 2023-03-29 Yunfan Zhang , Hao Wang , Guosheng Lin , Vun Chan Hua Nicholas , Zhiqi Shen , Chunyan Miao

Point cloud completion is a vital task focused on reconstructing complete point clouds and addressing the incompleteness caused by occlusion and limited sensor resolution. Traditional methods relying on fixed local region partitioning, such…

图形学 · 计算机科学 2025-09-30 Zhenyu Shu , Jian Yao , Shiqing Xin

3D point cloud - a new signal representation of volumetric objects - is a discrete collection of triples marking exterior object surface locations in 3D space. Conventional imperfect acquisition processes of 3D point cloud - e.g.,…

计算机视觉与模式识别 · 计算机科学 2019-05-01 Jin Zeng , Gene Cheung , Michael Ng , Jiahao Pang , Cheng Yang

Graph convolutional networks have been widely used in skeleton-based action recognition. However, existing approaches are limited in fine-grained action recognition due to the similarity of inter-class data. Moreover, the noisy data from…

计算机视觉与模式识别 · 计算机科学 2023-06-28 Sheng-Lan Liu , Yu-Ning Ding , Jin-Rong Zhang , Kai-Yuan Liu , Si-Fan Zhang , Fei-Long Wang , Gao Huang

The decoupled Graph Convolutional Network (GCN), a recent development of GCN that decouples the neighborhood aggregation and feature transformation in each convolutional layer, has shown promising performance for graph representation…

机器学习 · 计算机科学 2022-11-16 Jinsong Chen , Boyu Li , Kun He

Graph convolutional neural networks (GCNs) generalize tradition convolutional neural networks (CNNs) from low-dimensional regular graphs (e.g., image) to high dimensional irregular graphs (e.g., text documents on word embeddings). Due to…

机器学习 · 计算机科学 2021-03-30 Mehrnaz Najafi , Philip S. Yu

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

Graph convolutional networks (GCNs) have achieved great success on graph-structured data. Many graph convolutional networks can be thought of as low-pass filters for graph signals. In this paper, we propose a more powerful graph…

机器学习 · 计算机科学 2023-06-22 Zhixian Chen , Tengfei Ma , Zhihua Jin , Yangqiu Song , Yang Wang

Generating continuous surfaces from discrete point cloud data is a fundamental task in several 3D vision applications. Real-world point clouds are inherently noisy due to various technical and environmental factors. Existing data-driven…

计算机视觉与模式识别 · 计算机科学 2025-09-22 Stuti Pathak , Rhys G. Evans , Gunther Steenackers , Rudi Penne

Convolutional Neural Network (CNN) has demonstrated impressive ability to represent hyperspectral images and to achieve promising results in hyperspectral image classification. However, traditional CNN models can only operate convolution on…

图像与视频处理 · 电气工程与系统科学 2019-05-16 Sheng Wan , Chen Gong , Ping Zhong , Bo Du , Lefei Zhang , Jian Yang

Graph neural networks (GNNs) have significantly improved the representation power for graph-structured data. Despite of the recent success of GNNs, the graph convolution in most GNNs have two limitations. Since the graph convolution is…

机器学习 · 计算机科学 2021-12-30 Jinyoung Park , Sungdong Yoo , Jihwan Park , Hyunwoo J. Kim

Point cloud registration is a fundamental problem in computer vision that aims to estimate the transformation between corresponding sets of points. Non-rigid registration, in particular, involves addressing challenges including various…

计算机视觉与模式识别 · 计算机科学 2025-06-06 Sara Monji-Azad , Marvin Kinz , Jürgen Hesser

Thanks to the application of deep learning technology in point cloud processing of the remote sensing field, point cloud segmentation has become a research hotspot in recent years, which can be applied to real-world 3D, smart cities, and…

计算机视觉与模式识别 · 计算机科学 2024-08-06 Yong-Qiang Mao , Hanbo Bi , Xuexue Li , Kaiqiang Chen , Zhirui Wang , Xian Sun , Kun Fu

Recent feed-forward networks have achieved remarkable progress in sparse-view 3D reconstruction by predicting dense point maps directly from RGB images. However, they often suffer from geometric inconsistencies and limited fine-grained…

计算机视觉与模式识别 · 计算机科学 2026-03-13 Yutong Chen , Yiming Wang , Xucong Zhang , Sergey Prokudin , Siyu Tang