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The data-centric machine learning aims to find effective ways to build appropriate datasets which can improve the performance of AI models. In this paper, we mainly focus on designing an efficient data-centric scheme to improve robustness…

机器学习 · 计算机科学 2022-03-09 Xiaogeng Liu , Haoyu Wang , Yechao Zhang , Fangzhou Wu , Shengshan Hu

Learning from bounding-boxes annotations has shown great potential in weakly-supervised 3D point cloud instance segmentation. However, we observed that existing methods would suffer severe performance degradation with perturbed bounding box…

计算机视觉与模式识别 · 计算机科学 2023-09-06 Qingtao Yu , Heming Du , Chen Liu , Xin Yu

In clinical research, the lack of events of interest often necessitates imbalanced learning. One approach to resolve this obstacle is data integration or sharing, but due to privacy concerns neither is practical. Therefore, there is an…

机器学习 · 计算机科学 2020-09-01 Seok-Ju Hahn , Junghye Lee

Deep convolutional neural networks (CNNs) are state-of-the-art for semantic image segmentation, but typically require many labeled training samples. Obtaining 3D segmentations of medical images for supervised training is difficult and labor…

计算机视觉与模式识别 · 计算机科学 2019-07-29 Zhenlin Xu , Marc Niethammer

Point cloud registration plays a critical role in a multitude of computer vision tasks, such as pose estimation and 3D localization. Recently, a plethora of deep learning methods were formulated that aim to tackle this problem. Most of…

计算机视觉与模式识别 · 计算机科学 2021-09-24 Lisa Tse , Abdoul Aziz Amadou , Axen Georget , Ahmet Tuysuzoglu

In autonomous navigation systems, the solution of the place recognition problem is crucial for their safe functioning. But this is not a trivial solution, since it must be accurate regardless of any changes in the scene, such as seasonal…

机器学习 · 计算机科学 2025-05-26 Judith Vilella-Cantos , Juan José Cabrera , Luis Payá , Mónica Ballesta , David Valiente

Point cloud-based medical registration promises increased computational efficiency, robustness to intensity shifts, and anonymity preservation but is limited by the inefficacy of unsupervised learning with similarity metrics. Supervised…

计算机视觉与模式识别 · 计算机科学 2023-07-06 Alexander Bigalke , Mattias P. Heinrich

Joint channel estimation and signal detection (JCESD) is crucial in orthogonal frequency division multiplexing (OFDM) systems, but traditional algorithms perform poorly in low signal-to-noise ratio (SNR) scenarios. Deep learning (DL)…

信号处理 · 电气工程与系统科学 2024-06-24 Haocheng Ju , Haimiao Zhang , Lin Li , Xiao Li , Bin Dong

Point set registration is the process of finding the best alignment between two point sets, and it is a common task in different domains, especially in the automotive and mobile robotics domains. Lots of approaches are proposed in the…

机器人学 · 计算机科学 2022-04-22 Karim Haggag

Accurate uncertainty estimation associated with the pose transformation between two 3D point clouds is critical for autonomous navigation, grasping, and data fusion. Iterative closest point (ICP) is widely used to estimate the…

机器人学 · 计算机科学 2020-04-20 Fahira Afzal Maken , Fabio Ramos , Lionel Ott

In this paper, we propose a novel 3D registration paradigm, Generative Point Cloud Registration, which bridges advanced 2D generative models with 3D matching tasks to enhance registration performance. Our key idea is to generate cross-view…

计算机视觉与模式识别 · 计算机科学 2026-02-17 Haobo Jiang , Jin Xie , Jian Yang , Liang Yu , Jianmin Zheng

Accurate and efficient point cloud registration is a challenge because the noise and a large number of points impact the correspondence search. This challenge is still a remaining research problem since most of the existing methods rely on…

计算机视觉与模式识别 · 计算机科学 2021-11-24 Xiaoshui Huang , Zongyi Xu , Guofeng Mei , Sheng Li , Jian Zhang , Yifan Zuo , Yucheng Wang

Deep learning-based feature matching has shown great superiority for point cloud registration in the absence of pose priors. Although coarse-to-fine matching approaches are prevalent, the coarse matching of existing methods is typically…

计算机视觉与模式识别 · 计算机科学 2024-10-15 Renlang Huang , Yufan Tang , Jiming Chen , Liang Li

Data for face analysis often exhibit highly-skewed class distribution, i.e., most data belong to a few majority classes, while the minority classes only contain a scarce amount of instances. To mitigate this issue, contemporary deep…

计算机视觉与模式识别 · 计算机科学 2019-05-01 Chen Huang , Yining Li , Chen Change Loy , Xiaoou Tang

Point cloud data now are popular data representations in a number of three-dimensional (3D) vision research realms. However, due to the limited performance of sensors and sensing noise, the raw data usually suffer from sparsity, noise, and…

计算机视觉与模式识别 · 计算机科学 2024-11-05 Siwen Quan , Junhao Yu , Ziming Nie , Muze Wang , Sijia Feng , Pei An , Jiaqi Yang

Class imbalance is a common issue in real-world data distributions, negatively impacting the training of accurate classifiers. Traditional approaches to mitigate this problem fall into three main categories: class re-balancing, information…

机器学习 · 计算机科学 2024-06-26 Zhiwei Yao

Point cloud registration sits at the core of many important and challenging 3D perception problems including autonomous navigation, SLAM, object/scene recognition, and augmented reality. In this paper, we present a new registration…

计算机视觉与模式识别 · 计算机科学 2018-07-10 Ben Eckart , Kihwan Kim , Jan Kautz

The task of learning from point cloud data is always challenging due to the often occurrence of noise and outliers in the data. Such data inaccuracies can significantly influence the performance of state-of-the-art deep learning networks…

计算机视觉与模式识别 · 计算机科学 2021-06-22 Ayman Mukhaimar , Ruwan Tennakoon , Chow Yin Lai , Reza Hoseinnezhad , AlirezaBab-Hadiashar

Deep learning has achieved impressive results in nuclei segmentation, but the massive requirement for pixel-wise labels remains a significant challenge. To alleviate the annotation burden, existing methods generate pseudo masks for model…

计算机视觉与模式识别 · 计算机科学 2024-06-25 Ziyue Wang , Ye Zhang , Yifeng Wang , Linghan Cai , Yongbing Zhang

Modern robotic systems are required to operate in challenging environments, which demand reliable localization under challenging conditions. LiDAR-based localization methods, such as the Iterative Closest Point (ICP) algorithm, can suffer…

机器人学 · 计算机科学 2024-02-20 Turcan Tuna , Julian Nubert , Yoshua Nava , Shehryar Khattak , Marco Hutter