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Existing learning-based point feature descriptors are usually task-agnostic, which pursue describing the individual 3D point clouds as accurate as possible. However, the matching task aims at describing the corresponding points consistently…

计算机视觉与模式识别 · 计算机科学 2022-10-27 Zhiyuan Zhang , Yuchao Dai , Bin Fan , Jiadai Sun , Mingyi He

Domain generalization in 3D segmentation is a critical challenge in deploying models to unseen environments. Current methods mitigate the domain shift by augmenting the data distribution of point clouds. However, the model learns global…

计算机视觉与模式识别 · 计算机科学 2025-08-18 Pei He , Lingling Li , Licheng Jiao , Ronghua Shang , Fang Liu , Shuang Wang , Xu Liu , Wenping Ma

Feature fusion and similarity computation are two core problems in 3D object tracking, especially for object tracking using sparse and disordered point clouds. Feature fusion could make similarity computing more efficient by including…

计算机视觉与模式识别 · 计算机科学 2021-10-29 Yubo Cui , Zheng Fang , Jiayao Shan , Zuoxu Gu , Sifan Zhou

With the development of the 3D data acquisition facilities, the increasing scale of acquired 3D point clouds poses a challenge to the existing data compression techniques. Although promising performance has been achieved in static point…

计算机视觉与模式识别 · 计算机科学 2022-04-26 Guangchi Fang , Qingyong Hu , Yiling Xu , Yulan Guo

Decentralized federated learning (DFL) captures FL settings where both (i) model updates and (ii) model aggregations are exclusively carried out by the clients without a central server. Existing DFL works have mostly focused on settings…

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,…

计算机视觉与模式识别 · 计算机科学 2022-06-13 Jun Li , Shangwei Guo , Shaokun Han

Feature-level fusion shows promise in collaborative perception (CP) through balanced performance and communication bandwidth trade-off. However, its effectiveness critically relies on input feature quality. The acquisition of high-quality…

计算机视觉与模式识别 · 计算机科学 2025-09-24 Chengchang Tian , Jianwei Ma , Yan Huang , Zhanye Chen , Honghao Wei , Hui Zhang , Wei Hong

We propose a local-to-global representation learning algorithm for 3D point cloud data, which is appropriate to handle various geometric transformations, especially rotation, without explicit data augmentation with respect to the…

计算机视觉与模式识别 · 计算机科学 2021-04-01 Seohyun Kim , Jaeyoo Park , Bohyung Han

Despite the advances in the field of Face Recognition (FR), the precision of these methods is not yet sufficient. To improve the FR performance, this paper proposes a technique to aggregate the outputs of two state-of-the-art (SOTA) deep FR…

计算机视觉与模式识别 · 计算机科学 2023-09-26 Mohammad Akyash , Ali Zafari , Nasser M. Nasrabadi

Point cloud processing methods exploit local point features and global context through aggregation which does not explicity model the internal correlations between local and global features. To address this problem, we propose full point…

计算机视觉与模式识别 · 计算机科学 2023-03-09 Yong He , Hongshan Yu , Zhengeng Yang , Xiaoyan Liu , Wei Sun , Ajmal Mian

Conventional methods for point cloud completion, typically trained on synthetic datasets, face significant challenges when applied to out-of-distribution real-world scans. In this paper, we propose an effective yet simple source-free domain…

计算机视觉与模式识别 · 计算机科学 2025-03-20 Xing He , Zhe Zhu , Liangliang Nan , Honghua Chen , Jing Qin , Mingqiang Wei

Environmental perception systems are crucial for high-precision mapping and autonomous navigation, with LiDAR serving as a core sensor providing accurate 3D point cloud data. Efficiently processing unstructured point clouds while extracting…

计算机视觉与模式识别 · 计算机科学 2025-11-25 Chuang Chen , Yi Lin , Bo Wang , Jing Hu , Xi Wu , Wenyi Ge

Due to the point cloud's irregular and unordered geometry structure, conventional knowledge distillation technology lost a lot of information when directly used on point cloud tasks. In this paper, we propose Feature Adversarial…

计算机视觉与模式识别 · 计算机科学 2023-06-28 YuXing Lee , Wei Wu

Visual-based perception is the key module for autonomous driving. Among those visual perception tasks, video object detection is a primary yet challenging one because of feature degradation caused by fast motion or multiple poses. Current…

计算机视觉与模式识别 · 计算机科学 2024-05-30 Yiming Cui , Cheng Han , Dongfang Liu

Federated Learning (FL) faces significant challenges with domain shifts in heterogeneous data, degrading performance. Traditional domain generalization aims to learn domain-invariant features, but the federated nature of model averaging…

机器学习 · 计算机科学 2024-05-29 Marc Bartholet , Taehyeon Kim , Ami Beuret , Se-Young Yun , Joachim M. Buhmann

Federated Learning (FL) faces significant challenges in evolving environments, particularly regarding data heterogeneity and the rigidity of fixed network topologies. To address these issues, this paper proposes \textbf{SOFA-FL}…

机器学习 · 计算机科学 2025-12-10 Yi Ni , Xinkun Wang , Han Zhang

Traditional federated learning (FL) algorithms operate under the assumption that the data distributions at training (source domains) and testing (target domain) are the same. The fact that domain shifts often occur in practice necessitates…

机器学习 · 计算机科学 2023-11-02 Jungwuk Park , Dong-Jun Han , Jinho Kim , Shiqiang Wang , Christopher G. Brinton , Jaekyun Moon

Point clouds are an increasingly relevant data type but they are often corrupted by noise. We propose a deep neural network based on graph-convolutional layers that can elegantly deal with the permutation-invariance problem encountered by…

计算机视觉与模式识别 · 计算机科学 2020-07-07 Francesca Pistilli , Giulia Fracastoro , Diego Valsesia , Enrico Magli

Augmenting LiDAR input with multiple previous frames provides richer semantic information and thus boosts performance in 3D object detection, However, crowded point clouds in multi-frames can hurt the precise position information due to the…

计算机视觉与模式识别 · 计算机科学 2023-05-25 Yao Rong , Xiangyu Wei , Tianwei Lin , Yueyu Wang , Enkelejda Kasneci

Traditional federated learning (FL) methods have limited support for clients with varying computational and communication abilities, leading to inefficiencies and potential inaccuracies in model training. This limitation hinders the…

机器学习 · 计算机科学 2024-06-17 Jong-Ik Park , Carlee Joe-Wong