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Due to the few annotated labels of 3D point clouds, how to learn discriminative features of point clouds to segment object instances is a challenging problem. In this paper, we propose a simple yet effective 3D instance segmentation…

Computer Vision and Pattern Recognition · Computer Science 2022-10-12 Linghua Tang , Le Hui , Jin Xie

This paper proposes a general solution to enable point cloud recognition models to handle distribution shifts at test time. Unlike prior methods, which rely heavily on training data (often inaccessible during online inference) and are…

Computer Vision and Pattern Recognition · Computer Science 2025-04-29 Hongyu Sun , Qiuhong Ke , Ming Cheng , Yongcai Wang , Deying Li , Chenhui Gou , Jianfei Cai

Learning for manipulation requires using policies that have access to rich sensory information such as point clouds or RGB images. Point clouds efficiently capture geometric structures, making them essential for manipulation tasks in…

Global localization in 3D point clouds is a challenging problem of estimating the pose of vehicles without any prior knowledge. In this paper, a solution to this problem is presented by achieving place recognition and metric pose estimation…

Robotics · Computer Science 2022-11-29 Huan Yin , Li Tang , Xiaqing Ding , Yue Wang , Rong Xiong

Text-to-video generation has evolved rapidly in recent years, delivering remarkable results. Training typically relies on video-caption paired data, which plays a crucial role in enhancing generation performance. However, current video…

Computer Vision and Pattern Recognition · Computer Science 2024-12-13 Tiehan Fan , Kepan Nan , Rui Xie , Penghao Zhou , Zhenheng Yang , Chaoyou Fu , Xiang Li , Jian Yang , Ying Tai

A 3D point cloud describes the real scene precisely and intuitively.To date how to segment diversified elements in such an informative 3D scene is rarely discussed. In this paper, we first introduce a simple and flexible framework to…

Computer Vision and Pattern Recognition · Computer Science 2019-03-01 Xinlong Wang , Shu Liu , Xiaoyong Shen , Chunhua Shen , Jiaya Jia

The irregularity and permutation invariance of point cloud data pose challenges for effective learning. Conventional methods for addressing this issue involve converting raw point clouds to intermediate representations such as 3D voxel…

Computer Vision and Pattern Recognition · Computer Science 2023-06-29 Athrva Atul Pandhare

3D instance segmentation plays a crucial role in comprehending 3D scenes. Despite recent advancements in this field, existing approaches exhibit certain limitations. These methods often rely on fixed instance positions obtained from sampled…

Computer Vision and Pattern Recognition · Computer Science 2023-12-12 Mengnan Zhao , Lihe Zhang , Yuqiu Kong , Baocai Yin

Visual localization is one of the primary capabilities for mobile robots. Long-term visual localization in real time is particularly challenging, in which the robot is required to efficiently localize itself using visual data where…

Robotics · Computer Science 2019-03-12 Xiaqing Ding , Yue Wang , Li Tang , Huan Yin , Rong Xiong

Point cloud registration is a key problem for computer vision applied to robotics, medical imaging, and other applications. This problem involves finding a rigid transformation from one point cloud into another so that they align. Iterative…

Computer Vision and Pattern Recognition · Computer Science 2019-05-10 Yue Wang , Justin M. Solomon

Place recognition plays a crucial role in the fields of robotics and computer vision, finding applications in areas such as autonomous driving, mapping, and localization. Place recognition identifies a place using query sensor data and a…

Computer Vision and Pattern Recognition · Computer Science 2024-10-08 Sijie Wang , Qiyu Kang , Rui She , Kai Zhao , Yang Song , Wee Peng Tay

Locating and retrieving objects from scene-level point clouds is a challenging problem with broad applications in robotics and augmented reality. This task is commonly formulated as open-vocabulary 3D instance segmentation. Although recent…

Computer Vision and Pattern Recognition · Computer Science 2025-12-23 Khanh Nguyen , Dasith de Silva Edirimuni , Ghulam Mubashar Hassan , Ajmal Mian

Self-supervised representation learning for point cloud has demonstrated effectiveness in improving pre-trained model performance across diverse tasks. However, as pre-trained models grow in complexity, fully fine-tuning them for downstream…

Computer Vision and Pattern Recognition · Computer Science 2025-05-28 Song Wang , Xiaolu Liu , Lingdong Kong , Jianyun Xu , Chunyong Hu , Gongfan Fang , Wentong Li , Jianke Zhu , Xinchao Wang

Cross-domain object detection is challenging, and it involves aligning labeled source and unlabeled target domains. Previous approaches have used adversarial training to align features at both image-level and instance-level. At the instance…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Onkar Krishna , Hiroki Ohashi , Saptarshi Sinha

Text-based person search is a sub-task in the field of image retrieval, which aims to retrieve target person images according to a given textual description. The significant feature gap between two modalities makes this task very…

Computer Vision and Pattern Recognition · Computer Science 2021-05-26 Yuhao Chen , Guoqing Zhang , Yujiang Lu , Zhenxing Wang , Yuhui Zheng , Ruili Wang

To autonomously navigate and plan interactions in real-world environments, robots require the ability to robustly perceive and map complex, unstructured surrounding scenes. Besides building an internal representation of the observed scene…

The point cloud based 3D single object tracking has drawn increasing attention. Although many breakthroughs have been achieved, we also reveal two severe issues. By extensive analysis, we find the prediction manner of current approaches is…

Computer Vision and Pattern Recognition · Computer Science 2023-02-10 Pan Wang , Liangliang Ren , Shengkai Wu , Jinrong Yang , En Yu , Hangcheng Yu , Xiaoping Li

Localization has been a challenging task for autonomous navigation. A loop detection algorithm must overcome environmental changes for the place recognition and re-localization of robots. Therefore, deep learning has been extensively…

Robotics · Computer Science 2023-04-19 Alex Junho Lee , Seungwon Song , Hyungtae Lim , Woojoo Lee , Hyun Myung

This paper focuses on building semantic maps, containing object poses and shapes, using a monocular camera. This is an important problem because robots need rich understanding of geometry and context if they are to shape the future of…

Computer Vision and Pattern Recognition · Computer Science 2021-03-09 Qiaojun Feng , Yue Meng , Mo Shan , Nikolay Atanasov

Real-time registration of partially overlapping point clouds has emerging applications in cooperative perception for autonomous vehicles and multi-agent SLAM. The relative translation between point clouds in these applications is higher…

Computer Vision and Pattern Recognition · Computer Science 2021-12-21 Eduardo Arnold , Sajjad Mozaffari , Mehrdad Dianati