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Automatically understanding emotions from visual data is a fundamental task for human behaviour understanding. While models devised for Facial Expression Recognition (FER) have demonstrated excellent performances on many datasets, they…

计算机视觉与模式识别 · 计算机科学 2022-10-12 Alessandro Conti , Paolo Rota , Yiming Wang , Elisa Ricci

We present a novel approach for unsupervised road segmentation in adverse weather conditions such as rain or fog. This includes a new algorithm for source-free domain adaptation (SFDA) using self-supervised learning. Moreover, our approach…

计算机视觉与模式识别 · 计算机科学 2025-02-13 Divya Kothandaraman , Rohan Chandra , Dinesh Manocha

Medical image segmentation models face severe performance drops under domain shifts, especially when data sharing constraints prevent access to source images. We present a novel Uncertainty-aware Progressive Pseudo-label Denoising (UP2D)…

图像与视频处理 · 电气工程与系统科学 2025-11-03 Quang-Khai Bui-Tran , Thanh-Huy Nguyen , Manh D. Ho , Thinh B. Lam , Vi Vu , Hoang-Thien Nguyen , Phat Huynh , Ulas Bagci

Domain adaptation (DA) has been widely applied in the diabetic retinopathy (DR) grading of unannotated ultra-wide-field (UWF) fundus images, which can transfer annotated knowledge from labeled color fundus images. However, suffering from…

计算机视觉与模式识别 · 计算机科学 2023-09-20 Jinye Ran , Guanghua Zhang , Ximei Zhang , Juan Xie , Fan Xia , Hao Zhang

Unsupervised Domain Adaptation (UDA) addresses the problem of performance degradation due to domain shift between training and testing sets, which is common in computer vision applications. Most existing UDA approaches are based on…

计算机视觉与模式识别 · 计算机科学 2019-05-14 Songsong Wu , Yan Yan , Hao Tang , Jianjun Qian , Jian Zhang , Xiao-Yuan Jing

Deep learning based medical image diagnosis has shown great potential in clinical medicine. However, it often suffers two major difficulties in practice: 1) only limited labeled samples are available due to expensive annotation costs over…

机器学习 · 计算机科学 2019-11-19 Yifan Zhang , Ying Wei , Peilin Zhao , Shuaicheng Niu , Qingyao Wu , Mingkui Tan , Junzhou Huang

Deep neural networks for semantic segmentation always require a large number of samples with pixel-level labels, which becomes the major difficulty in their real-world applications. To reduce the labeling cost, unsupervised domain…

计算机视觉与模式识别 · 计算机科学 2019-10-01 Minghao Chen , Hongyang Xue , Deng Cai

Domain Adaptation (DA) is crucial for robust deployment of medical image segmentation models when applied to new clinical centers with significant domain shifts. Source-Free Domain Adaptation (SFDA) is appealing as it can deal with privacy…

计算机视觉与模式识别 · 计算机科学 2025-06-12 Xinya Liu , Jianghao Wu , Tao Lu , Shaoting Zhang , Guotai Wang

Unsupervised domain adaptation (UDA) aims to transfer the knowledge on a labeled source domain distribution to perform well on an unlabeled target domain. Recently, the deep self-training involves an iterative process of predicting on the…

计算机视觉与模式识别 · 计算机科学 2021-01-05 Xiaofeng Liu , Bo Hu , Xiongchang Liu , Jun Lu , Jane You , Lingsheng Kong

Unsupervised domain adaptation (UDA) plays a crucial role in object detection when adapting a source-trained detector to a target domain without annotated data. In this paper, we propose a novel and effective four-step UDA approach that…

计算机视觉与模式识别 · 计算机科学 2023-08-30 Mohamed L. Mekhalfi , Davide Boscaini , Fabio Poiesi

Unsupervised domain adaptation (UDA) methods facilitate the transfer of models to target domains without labels. However, these methods necessitate a labeled target validation set for hyper-parameter tuning and model selection. In this…

计算机视觉与模式识别 · 计算机科学 2023-09-19 Minghao Chen , Zepeng Gao , Shuai Zhao , Qibo Qiu , Wenxiao Wang , Binbin Lin , Xiaofei He

Source-free Unsupervised Domain Adaptation (SFDA) aims to classify target samples by only accessing a pre-trained source model and unlabelled target samples. Since no source data is available, transferring the knowledge from the source…

计算机视觉与模式识别 · 计算机科学 2024-05-14 Jinkun Jiang , Qingxuan Lv , Yuezun Li , Yong Du , Sheng Chen , Hui Yu , Junyu Dong

Unsupervised domain adaptation (UDA) approaches focus on adapting models trained on a labeled source domain to an unlabeled target domain. UDA methods have a strong assumption that the source data is accessible during adaptation, which may…

计算机视觉与模式识别 · 计算机科学 2023-03-31 Nazmul Karim , Niluthpol Chowdhury Mithun , Abhinav Rajvanshi , Han-pang Chiu , Supun Samarasekera , Nazanin Rahnavard

Emotion recognition is crucial for advancing mental health, healthcare, and technologies like brain-computer interfaces (BCIs). However, EEG-based emotion recognition models face challenges in cross-domain applications due to the high cost…

信号处理 · 电气工程与系统科学 2025-04-08 Md Niaz Imtiaz , Naimul Khan

Unsupervised domain adaptation (UDA) aims to learn the unlabeled target domain by transferring the knowledge of the labeled source domain. To date, most of the existing works focus on the scenario of one source domain and one target domain…

机器学习 · 计算机科学 2018-09-18 Huanhuan Yu , Menglei Hu , Songcan Chen

In the face of the deep learning model's vulnerability to domain shift, source-free domain adaptation (SFDA) methods have been proposed to adapt models to new, unseen target domains without requiring access to source domain data. Although…

计算机视觉与模式识别 · 计算机科学 2024-03-19 Uiwon Hwang , Jonghyun Lee , Juhyeon Shin , Sungroh Yoon

In theory, the success of unsupervised domain adaptation (UDA) largely relies on domain gap estimation. However, for source free UDA, the source domain data can not be accessed during adaptation, which poses great challenge of measuring the…

计算机视觉与模式识别 · 计算机科学 2022-10-04 Ziyang Zong , Jun He , Lei Zhang , Hai Huan

We introduce LiDAR-UDA, a novel two-stage self-training-based Unsupervised Domain Adaptation (UDA) method for LiDAR segmentation. Existing self-training methods use a model trained on labeled source data to generate pseudo labels for target…

计算机视觉与模式识别 · 计算机科学 2023-09-26 Amirreza Shaban , JoonHo Lee , Sanghun Jung , Xiangyun Meng , Byron Boots

Multi-source unsupervised domain adaptation (MS-UDA) for sentiment analysis (SA) aims to leverage useful information in multiple source domains to help do SA in an unlabeled target domain that has no supervised information. Existing…

计算与语言 · 计算机科学 2020-06-11 Yong Dai , Jian Liu , Xiancong Ren , Zenglin Xu

Unsupervised domain adaptation (UDA) involves a supervised loss in a labeled source domain and an unsupervised loss in an unlabeled target domain, which often faces more severe overfitting (than classical supervised learning) as the…

计算机视觉与模式识别 · 计算机科学 2021-08-17 Jiaxing Huang , Dayan Guan , Aoran Xiao , Shijian Lu