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This paper is not motivated to seek innovation within the attention mechanism. Instead, it focuses on overcoming the existing trade-offs between accuracy and efficiency within the context of point cloud processing, leveraging the power of…

Computer Vision and Pattern Recognition · Computer Science 2024-03-26 Xiaoyang Wu , Li Jiang , Peng-Shuai Wang , Zhijian Liu , Xihui Liu , Yu Qiao , Wanli Ouyang , Tong He , Hengshuang Zhao

Pre-trained large-scale models have exhibited remarkable efficacy in computer vision, particularly for 2D image analysis. However, when it comes to 3D point clouds, the constrained accessibility of data, in contrast to the vast repositories…

Computer Vision and Pattern Recognition · Computer Science 2024-08-06 Mengke Li , Da Li , Guoqing Yang , Yiu-ming Cheung , Hui Huang

Anomaly detection (AD) in 3D point clouds is crucial in a wide range of industrial applications, especially in various forms of precision manufacturing. Considering the industrial demand for reliable 3D AD, several methods have been…

Computer Vision and Pattern Recognition · Computer Science 2025-02-18 Jiaxiang Wang , Haote Xu , Xiaolu Chen , Haodi Xu , Yue Huang , Xinghao Ding , Xiaotong Tu

Affordable 3D scanners often produce sparse and non-uniform point clouds that negatively impact downstream applications in robotic systems. While existing point cloud upsampling architectures have demonstrated promising results on standard…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Ahmed Hatem , Yiming Qian , Yang Wang

Prompt-tuning has emerged as a promising method for adapting pre-trained models to downstream tasks or aligning with human preferences. Prompt learning is widely used in NLP but has limited applicability to RL due to the complex physical…

Machine Learning · Computer Science 2023-05-17 Shengchao Hu , Li Shen , Ya Zhang , Dacheng Tao

Neural networks pre-trained on a self-supervision scheme have become the standard when operating in data rich environments with scarce annotations. As such, fine-tuning a model to a downstream task in a parameter-efficient but effective…

Computer Vision and Pattern Recognition · Computer Science 2022-11-18 Marc Fischer , Alexander Bartler , Bin Yang

A promising direction for pre-training 3D point clouds is to leverage the massive amount of data in 2D, whereas the domain gap between 2D and 3D creates a fundamental challenge. This paper proposes a novel approach to point-cloud…

Computer Vision and Pattern Recognition · Computer Science 2024-04-30 Siming Yan , Chen Song , Youkang Kong , Qixing Huang

Point cloud analysis (such as 3D segmentation and detection) is a challenging task, because of not only the irregular geometries of many millions of unordered points, but also the great variations caused by depth, viewpoint, occlusion, etc.…

Computer Vision and Pattern Recognition · Computer Science 2023-07-28 Tuo Feng , Wenguan Wang , Xiaohan Wang , Yi Yang , Qinghua Zheng

The development of practical applications, such as autonomous driving and robotics, has brought increasing attention to 3D point cloud understanding. While deep learning has achieved remarkable success on image-based tasks, there are many…

Computer Vision and Pattern Recognition · Computer Science 2021-05-25 Haoming Lu , Humphrey Shi

Deep neural networks have revolutionized 3D point cloud processing, yet efficiently handling large and irregular point clouds remains challenging. To tackle this problem, we introduce FastPoint, a novel software-based acceleration technique…

Computer Vision and Pattern Recognition · Computer Science 2025-08-01 Donghyun Lee , Dawoon Jeong , Jae W. Lee , Hongil Yoon

Recent advances in multi-modal pre-training methods have shown promising effectiveness in learning 3D representations by aligning multi-modal features between 3D shapes and their corresponding 2D counterparts. However, existing multi-modal…

Computer Vision and Pattern Recognition · Computer Science 2025-07-24 Liwen Liu , Weidong Yang , Lipeng Ma , Ben Fei

Large-scale 3D point clouds (LS3DPC) obtained by LiDAR scanners require huge storage space and transmission bandwidth due to a large amount of data. The existing methods of LS3DPC compression separately perform rule-based point sampling and…

Computer Vision and Pattern Recognition · Computer Science 2024-12-11 Jae-Young Yim , Jae-Young Sim

Although recent point cloud analysis achieves impressive progress, the paradigm of representation learning from a single modality gradually meets its bottleneck. In this work, we take a step towards more discriminative 3D point cloud…

Computer Vision and Pattern Recognition · Computer Science 2022-10-11 Xu Yan , Heshen Zhan , Chaoda Zheng , Jiantao Gao , Ruimao Zhang , Shuguang Cui , Zhen Li

This paper presents a robust fine-tuning method designed for pre-trained 3D point cloud models, to enhance feature robustness in downstream fine-tuned models. We highlight the limitations of current fine-tuning methods and the challenges of…

Computer Vision and Pattern Recognition · Computer Science 2024-04-26 Zhibo Zhang , Ximing Yang , Weizhong Zhang , Cheng Jin

Large and rich data is a prerequisite for effective training of deep neural networks. However, the irregularity of point cloud data makes manual annotation time-consuming and laborious. Self-supervised representation learning, which…

Computer Vision and Pattern Recognition · Computer Science 2023-12-07 Xin Cao , Xinxin Han , Yifan Wang , Mengna Yang , Kang Li

In computer vision, fine-tuning is the de-facto approach to leverage pre-trained vision models to perform downstream tasks. However, deploying it in practice is quite challenging, due to adopting parameter inefficient global update and…

Computer Vision and Pattern Recognition · Computer Science 2022-08-24 Xing Nie , Bolin Ni , Jianlong Chang , Gaomeng Meng , Chunlei Huo , Zhaoxiang Zhang , Shiming Xiang , Qi Tian , Chunhong Pan

Parameter efficient transfer learning (PETL) is an emerging research spot that aims to adapt large-scale pre-trained models to downstream tasks. Recent advances have achieved great success in saving storage and computation costs. However,…

Computer Vision and Pattern Recognition · Computer Science 2023-09-13 Chunqing Ruan , Hongjian Wang

The recent success of pre-trained 2D vision models is mostly attributable to learning from large-scale datasets. However, compared with 2D image datasets, the current pre-training data of 3D point cloud is limited. To overcome this…

Computer Vision and Pattern Recognition · Computer Science 2022-12-20 Yuan Yao , Yuanhan Zhang , Zhenfei Yin , Jiebo Luo , Wanli Ouyang , Xiaoshui Huang

Scene-level point cloud understanding remains challenging due to diverse geometries, imbalanced category distributions, and highly varied spatial layouts. Existing methods improve object-level performance but rely on static network…

Computer Vision and Pattern Recognition · Computer Science 2026-04-07 Siyuan Liu , Chaoqun Zheng , Xin Zhou , Tianrui Feng , Dingkang Liang , Xiang Bai

3D Point cloud registration is still a very challenging topic due to the difficulty in finding the rigid transformation between two point clouds with partial correspondences, and it's even harder in the absence of any initial estimation…

Computer Vision and Pattern Recognition · Computer Science 2021-06-21 Zhijian Qiao , Huanshu Wei , Zhe Liu , Chuanzhe Suo , Hesheng Wang