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Unsupervised domain adaptation for point cloud semantic segmentation has attracted great attention due to its effectiveness in learning with unlabeled data. Most of existing methods use global-level feature alignment to transfer the…

计算机视觉与模式识别 · 计算机科学 2022-08-10 Yikai Bian , Le Hui , Jianjun Qian , Jin Xie

It is common in computer vision to be confronted with domain shift: images which have the same class but different acquisition conditions. In domain adaptation (DA), one wants to classify unlabeled target images using source labeled images.…

计算机视觉与模式识别 · 计算机科学 2022-06-23 Kilian Fatras , Hiroki Naganuma , Ioannis Mitliagkas

Contrastive Language-Image Pre-training, benefiting from large-scale unlabeled text-image pairs, has demonstrated great performance in open-world vision understanding tasks. However, due to the limited Text-3D data pairs, adapting the…

计算机视觉与模式识别 · 计算机科学 2023-03-28 Yihan Zeng , Chenhan Jiang , Jiageng Mao , Jianhua Han , Chaoqiang Ye , Qingqiu Huang , Dit-Yan Yeung , Zhen Yang , Xiaodan Liang , Hang Xu

Feature alignment between domains is one of the mainstream methods for Unsupervised Domain Adaptation (UDA) semantic segmentation. Existing feature alignment methods for semantic segmentation learn domain-invariant features by adversarial…

计算机视觉与模式识别 · 计算机科学 2021-05-10 Shuang Wang , Dong Zhao , Yi Li , Chi Zhang , Yuwei Guo , Qi Zang , Biao Hou , Licheng Jiao

Conventional unsupervised domain adaptation (UDA) assumes that training data are sampled from a single domain. This neglects the more practical scenario where training data are collected from multiple sources, requiring multi-source domain…

计算机视觉与模式识别 · 计算机科学 2019-08-29 Xingchao Peng , Qinxun Bai , Xide Xia , Zijun Huang , Kate Saenko , Bo Wang

Currently, the divergence in distributions of design and operational data, and large computational complexity are limiting factors in the adoption of CNNs in real-world applications. For instance, person re-identification systems typically…

机器学习 · 计算机科学 2020-05-19 Le Thanh Nguyen-Meidine , Eric Granger , Madhu Kiran , Jose Dolz , Louis-Antoine Blais-Morin

Unsupervised domain adaptation (UDA) aims to transfer knowledge learned from a labeled source domain to an unlabeled target domain. Contrastive learning (CL) in the context of UDA can help to better separate classes in feature space.…

计算机视觉与模式识别 · 计算机科学 2022-06-09 Mingxuan Gu , Sulaiman Vesal , Mareike Thies , Zhaoya Pan , Fabian Wagner , Mirabela Rusu , Andreas Maier , Ronak Kosti

As point cloud data increases in prevalence in a variety of applications, the ability to detect out-of-distribution (OOD) point cloud objects becomes critical for ensuring model safety and reliability. However, this problem remains…

计算机视觉与模式识别 · 计算机科学 2025-06-30 Adam Goodge , Xun Xu , Bryan Hooi , Wee Siong Ng , Jingyi Liao , Yongyi Su , Xulei Yang

Unsupervised domain adaptation (UDA) for semantic segmentation has been well-studied in recent years. However, most existing works largely neglect the local regional consistency across different domains and are less robust to changes in…

计算机视觉与模式识别 · 计算机科学 2022-09-13 Qianyu Zhou , Chuyun Zhuang , Ran Yi , Xuequan Lu , Lizhuang Ma

For unsupervised domain adaptation (UDA), to alleviate the effect of domain shift, many approaches align the source and target domains in the feature space by adversarial learning or by explicitly aligning their statistics. However, the…

计算机视觉与模式识别 · 计算机科学 2021-03-26 Guoqiang Wei , Cuiling Lan , Wenjun Zeng , Zhibo Chen

Place recognition plays an essential role in the field of autonomous driving and robot navigation. Point cloud based methods mainly focus on extracting global descriptors from local features of point clouds. Despite having achieved…

计算机视觉与模式识别 · 计算机科学 2022-10-13 Tian-Xing Xu , Yuan-Chen Guo , Zhiqiang Li , Ge Yu , Yu-Kun Lai , Song-Hai Zhang

In time series anomaly detection (TSAD), the scarcity of labeled data poses a challenge to the development of accurate models. Unsupervised domain adaptation (UDA) offers a solution by leveraging labeled data from a related domain to detect…

Domain adaptation (DA) aims to generalize a learning model across training and testing data despite the mismatch of their data distributions. In light of a theoretical estimation of upper error bound, we argue in this paper that an…

计算机视觉与模式识别 · 计算机科学 2018-01-01 Lingkun Luo , Liming Chen , Shiqiang Hu , Ying Lu , Xiaofang Wang

We introduce an unsupervised domain adaption (UDA) strategy that combines multiple image translations, ensemble learning and self-supervised learning in one coherent approach. We focus on one of the standard tasks of UDA in which a semantic…

计算机视觉与模式识别 · 计算机科学 2021-07-14 Fabrizio J. Piva , Gijs Dubbelman

Recently, considerable effort has been devoted to deep domain adaptation in computer vision and machine learning communities. However, most of existing work only concentrates on learning shared feature representation by minimizing the…

机器学习 · 计算机科学 2019-04-24 Chao Chen , Zhihong Chen , Boyuan Jiang , Xinyu Jin

Unsupervised Domain Adaptation (UDA) is quite challenging due to the large distribution discrepancy between the source domain and the target domain. Inspired by diffusion models which have strong capability to gradually convert data…

计算机视觉与模式识别 · 计算机科学 2023-08-29 Duo Peng , Qiuhong Ke , Yinjie Lei , Jun Liu

We present a novel approach for unsupervised domain adaptation (UDA) for natural images. A commonly-used objective for UDA schemes is to enhance domain alignment in representation space even if there is a domain shift in the input space.…

计算机视觉与模式识别 · 计算机科学 2025-06-24 Ravi Kant Gupta , Shounak Das , Amit Sethi

Unsupervised domain adaptation (UDA) aims to transfer knowledge from a well-labeled source domain to a different but related unlabeled target domain with identical label space. Currently, the main workhorse for solving UDA is domain…

计算机视觉与模式识别 · 计算机科学 2022-12-19 Weikai Li , Songcan Chen

Previous feature alignment methods in Unsupervised domain adaptation(UDA) mostly only align global features without considering the mismatch between class-wise features. In this work, we propose a new coarse-to-fine feature alignment method…

计算机视觉与模式识别 · 计算机科学 2021-03-24 Shiyu Tang , Peijun Tang , Yanxiang Gong , Zheng Ma , Mei Xie

Recent works on domain adaptation exploit adversarial training to obtain domain-invariant feature representations from the joint learning of feature extractor and domain discriminator networks. However, domain adversarial methods render…

计算机视觉与模式识别 · 计算机科学 2019-10-15 Seungmin Lee , Dongwan Kim , Namil Kim , Seong-Gyun Jeong