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Domain Adaptation aiming to learn a transferable feature between different but related domains has been well investigated and has shown excellent empirical performances. Previous works mainly focused on matching the marginal feature…

Machine Learning · Computer Science 2020-05-26 Fan Zhou , Changjian Shui , Bincheng Huang , Boyu Wang , Brahim Chaib-draa

We address the problem of face anti-spoofing which aims to make the face verification systems robust in the real world settings. The context of detecting live vs. spoofed face images may differ significantly in the target domain, when…

Computer Vision and Pattern Recognition · Computer Science 2021-05-19 Ankush Panwar , Pratyush Singh , Suman Saha , Danda Pani Paudel , Luc Van Gool

Although current face anti-spoofing methods achieve promising results under intra-dataset testing, they suffer from poor generalization to unseen attacks. Most existing works adopt domain adaptation (DA) or domain generalization (DG)…

Computer Vision and Pattern Recognition · Computer Science 2021-02-25 Jingjing Wang , Jingyi Zhang , Ying Bian , Youyi Cai , Chunmao Wang , Shiliang Pu

The success of most advanced facial expression recognition works relies heavily on large-scale annotated datasets. However, it poses great challenges in acquiring clean and consistent annotations for facial expression datasets. On the other…

Computer Vision and Pattern Recognition · Computer Science 2022-10-11 Yuxuan Shu , Xiao Gu , Guang-Zhong Yang , Benny Lo

Despite the great success achieved by deep learning methods in face recognition, severe performance drops are observed for large pose variations in unconstrained environments (e.g., in cases of surveillance and photo-tagging). To address…

Computer Vision and Pattern Recognition · Computer Science 2021-07-27 Qiang Meng , Xiaqing Xu , Xiaobo Wang , Yang Qian , Yunxiao Qin , Zezheng Wang , Chenxu Zhao , Feng Zhou , Zhen Lei

Recent advances in domain adaptation reveal that adversarial learning on deep neural networks can learn domain invariant features to reduce the shift between source and target domains. While such adversarial approaches achieve domain-level…

Computer Vision and Pattern Recognition · Computer Science 2023-01-11 Nishant Yadav , Mahbubul Alam , Ahmed Farahat , Dipanjan Ghosh , Chetan Gupta , Auroop R. Ganguly

We introduce a new representation learning approach for domain adaptation, in which data at training and test time come from similar but different distributions. Our approach is directly inspired by the theory on domain adaptation…

Recent works on domain adaptation reveal the effectiveness of adversarial learning on filling the discrepancy between source and target domains. However, two common limitations exist in current adversarial-learning-based methods. First,…

Computer Vision and Pattern Recognition · Computer Science 2019-12-05 Minghao Xu , Jian Zhang , Bingbing Ni , Teng Li , Chengjie Wang , Qi Tian , Wenjun Zhang

Unsupervised domain adaption aims to learn a powerful classifier for the target domain given a labeled source data set and an unlabeled target data set. To alleviate the effect of `domain shift', the major challenge in domain adaptation,…

Computer Vision and Pattern Recognition · Computer Science 2018-12-03 Yexun Zhang , Ya Zhang , Yanfeng Wang , Qi Tian

Domain adaptive pose estimation aims to enable deep models trained on source domain (synthesized) datasets produce similar results on the target domain (real-world) datasets. The existing methods have made significant progress by conducting…

Computer Vision and Pattern Recognition · Computer Science 2024-04-26 Yugan Chen , Lin Zhao , Yalong Xu , Honglei Zu , Xiaoqi An , Guangyu Li

Although deep convolutional networks have achieved great performance in face recognition tasks, the challenge of domain discrepancy still exists in real world applications. Lack of domain coverage of training data (source domain) makes the…

Computer Vision and Pattern Recognition · Computer Science 2022-01-25 Chun-Hsien Lin , Bing-Fei Wu

Data inconsistency and bias are inevitable among different facial expression recognition (FER) datasets due to subjective annotating process and different collecting conditions. Recent works resort to adversarial mechanisms that learn…

Computer Vision and Pattern Recognition · Computer Science 2020-08-05 Yuan Xie , Tianshui Chen , Tao Pu , Hefeng Wu , Liang Lin

Due to the numerous potential applications in visual surveillance and nighttime driving, recognizing human action in low-light conditions remains a difficult problem in computer vision. Existing methods separate action recognition and dark…

Computer Vision and Pattern Recognition · Computer Science 2022-11-01 Anwaar Ulhaq

Given labeled instances on a source domain and unlabeled ones on a target domain, unsupervised domain adaptation aims to learn a task classifier that can well classify target instances. Recent advances rely on domain-adversarial training of…

Computer Vision and Pattern Recognition · Computer Science 2019-12-18 Hui Tang , Kui Jia

Face anti-spoofing (FAS) based on domain generalization (DG) has been recently studied to improve the generalization on unseen scenarios. Previous methods typically rely on domain labels to align the distribution of each domain for learning…

Computer Vision and Pattern Recognition · Computer Science 2023-12-01 Qianyu Zhou , Ke-Yue Zhang , Taiping Yao , Xuequan Lu , Ran Yi , Shouhong Ding , Lizhuang Ma

Recent works have demonstrated convolutional neural networks are vulnerable to adversarial examples, i.e., inputs to machine learning models that an attacker has intentionally designed to cause the models to make a mistake. To improve the…

Computer Vision and Pattern Recognition · Computer Science 2020-05-12 Xianxu Hou , Jingxin Liu , Bolei Xu , Xiaolong Wang , Bozhi Liu , Guoping Qiu

We consider unsupervised domain adaptation: given labelled examples from a source domain and unlabelled examples from a related target domain, the goal is to infer the labels of target examples. Under the assumption that features from…

Machine Learning · Statistics 2019-01-08 Jeroen Manders , Twan van Laarhoven , Elena Marchiori

Continuous appearance shifts such as changes in weather and lighting conditions can impact the performance of deployed machine learning models. While unsupervised domain adaptation aims to address this challenge, current approaches do not…

Machine Learning · Statistics 2018-02-27 Markus Wulfmeier , Alex Bewley , Ingmar Posner

Face images are subject to many different factors of variation, especially in unconstrained in-the-wild scenarios. For most tasks involving such images, e.g. expression recognition from video streams, having enough labeled data is…

Computer Vision and Pattern Recognition · Computer Science 2020-08-19 Marah Halawa , Manuel Wöllhaf , Eduardo Vellasques , Urko Sánchez Sanz , Olaf Hellwich

We address the problem of camera pose estimation in visual localization. Current regression-based methods for pose estimation are trained and evaluated scene-wise. They depend on the coordinate frame of the training dataset and show a low…

Computer Vision and Pattern Recognition · Computer Science 2020-11-24 Boris Chidlovskii , Assem Sadek
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