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Distribution shifts between training and testing samples frequently occur in practice and impede model generalization performance. This crucial challenge thereby motivates studies on domain generalization (DG), which aim to predict the…

计算机视觉与模式识别 · 计算机科学 2025-10-21 Tianxin Wei , Yifan Chen , Xinrui He , Wenxuan Bao , Jingrui He

Deep learning models for medical image analysis easily suffer from distribution shifts caused by dataset artifacts bias, camera variations, differences in the imaging station, etc., leading to unreliable diagnoses in real-world clinical…

图像与视频处理 · 电气工程与系统科学 2024-01-09 Siyuan Yan , Chi Liu , Zhen Yu , Lie Ju , Dwarikanath Mahapatra , Brigid Betz-Stablein , Victoria Mar , Monika Janda , Peter Soyer , Zongyuan Ge

Multi-organ segmentation in medical imaging remains challenging due to large anatomical variability, complex inter-organ dependencies, and diverse organ scales and shapes. Conventional encoder-decoder architectures often struggle to capture…

计算机视觉与模式识别 · 计算机科学 2026-03-31 Zhuoyi Fang

This paper investigates the 3D domain generalization (3DDG) ability of large 3D models based on prevalent prompt learning. Recent works demonstrate the performances of 3D point cloud recognition can be boosted remarkably by…

计算机视觉与模式识别 · 计算机科学 2025-01-17 Hongyu Sun , Qiuhong Ke , Yongcai Wang , Wang Chen , Kang Yang , Deying Li , Jianfei Cai

Domain Generalization (DG) aims to enhance model robustness in unseen or distributionally shifted target domains through training exclusively on source domains. Although existing DG techniques, such as data manipulation, learning…

计算机视觉与模式识别 · 计算机科学 2025-07-08 Hai Huang , Yan Xia , Sashuai Zhou , Hanting Wang , Shulei Wang , Zhou Zhao

Although Domain Generalization (DG) problem has been fast-growing in the 2D image tasks, its exploration on 3D point cloud data is still insufficient and challenged by more complex and uncertain cross-domain variances with uneven…

计算机视觉与模式识别 · 计算机科学 2023-07-28 Siyuan Huang , Bo Zhang , Botian Shi , Peng Gao , Yikang Li , Hongsheng Li

In recent years, several efforts have been aimed at improving the robustness of vision models to domains and environments unseen during training. An important practical problem pertains to models deployed in a new geography that is…

计算机视觉与模式识别 · 计算机科学 2023-03-28 Tarun Kalluri , Wangdong Xu , Manmohan Chandraker

Recently, the fundamental problem of unsupervised domain adaptation (UDA) on 3D point clouds has been motivated by a wide variety of applications in robotics, virtual reality, and scene understanding, to name a few. The point cloud data…

计算机视觉与模式识别 · 计算机科学 2023-08-29 Siddharth Katageri , Arkadipta De , Chaitanya Devaguptapu , VSSV Prasad , Charu Sharma , Manohar Kaul

Point cloud analysis is very challenging, as the shape implied in irregular points is difficult to capture. In this paper, we propose RS-CNN, namely, Relation-Shape Convolutional Neural Network, which extends regular grid CNN to irregular…

计算机视觉与模式识别 · 计算机科学 2019-05-28 Yongcheng Liu , Bin Fan , Shiming Xiang , Chunhong Pan

Domain adaption (DA) and domain generalization (DG) are two closely related methods which are both concerned with the task of assigning labels to an unlabeled data set. The only dissimilarity between these approaches is that DA can access…

计算机视觉与模式识别 · 计算机科学 2018-12-27 Mohammad Mahfujur Rahman , Clinton Fookes , Mahsa Baktashmotlagh , Sridha Sridharan

Point cloud segmentation is the foundation of 3D environmental perception for modern intelligent systems. To solve this problem and image segmentation, conditional random fields (CRFs) are usually formulated as discrete models in label…

计算机视觉与模式识别 · 计算机科学 2021-10-13 Fei Yang , Franck Davoine , Huan Wang , Zhong Jin

Despite the striking performance achieved by modern detectors when training and test data are sampled from the same or similar distribution, the generalization ability of detectors under unknown distribution shifts remains hardly studied.…

计算机视觉与模式识别 · 计算机科学 2022-03-29 Xingxuan Zhang , Zekai Xu , Renzhe Xu , Jiashuo Liu , Peng Cui , Weitao Wan , Chong Sun , Chen Li

Recently Transformer-based models have advanced point cloud understanding by leveraging self-attention mechanisms, however, these methods often overlook latent information in less prominent regions, leading to increased sensitivity to…

计算机视觉与模式识别 · 计算机科学 2024-11-25 Yi Wang , Jiaze Wang , Ziyu Guo , Renrui Zhang , Donghao Zhou , Guangyong Chen , Anfeng Liu , Pheng-Ann Heng

Federated Domain Generalization (FedDG), aims to tackle the challenge of generalizing to unseen domains at test time while catering to the data privacy constraints that prevent centralized data storage from different domains originating at…

计算机视觉与模式识别 · 计算机科学 2024-07-23 Ahmed Radwan , Mohamed S. Shehata

Following the advent of immersive technologies and the increasing interest in representing interactive geometrical format, 3D Point Clouds (PC) have emerged as a promising solution and effective means to display 3D visual information. In…

计算机视觉与模式识别 · 计算机科学 2022-11-07 Marouane Tliba , Aladine Chetouani , Giuseppe Valenzise , Frederic Dufaux

Invariant approaches have been remarkably successful in tackling the problem of domain generalization, where the objective is to perform inference on data distributions different from those used in training. In our work, we investigate…

计算机视觉与模式识别 · 计算机科学 2021-03-31 Abhimanyu Dubey , Vignesh Ramanathan , Alex Pentland , Dhruv Mahajan

While deep neural networks demonstrate state-of-the-art performance on a variety of learning tasks, their performance relies on the assumption that train and test distributions are the same, which may not hold in real-world applications.…

机器学习 · 计算机科学 2021-02-18 Wenyu Zhang , Mohamed Ragab , Ramon Sagarna

Domain Generalization (DG) is essentially a sub-branch of out-of-distribution generalization, which trains models from multiple source domains and generalizes to unseen target domains. Recently, some domain generalization algorithms have…

计算机视觉与模式识别 · 计算机科学 2023-03-23 Zining Chen , Weiqiu Wang , Zhicheng Zhao , Aidong Men

The goal of objective point cloud quality assessment (PCQA) research is to develop quantitative metrics that measure point cloud quality in a perceptually consistent manner. Merging the research of cognitive science and intuition of the…

计算机视觉与模式识别 · 计算机科学 2023-11-30 Yujie Zhang , Qi Yang , Yifei Zhou , Xiaozhong Xu , Le Yang , Yiling Xu

Point cloud based place recognition is still an open issue due to the difficulty in extracting local features from the raw 3D point cloud and generating the global descriptor, and it's even harder in the large-scale dynamic environments. In…

计算机视觉与模式识别 · 计算机科学 2019-08-20 Zhe Liu , Shunbo Zhou , Chuanzhe Suo , Yingtian Liu , Peng Yin , Hesheng Wang , Yun-Hui Liu