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Learning models on one labeled dataset that generalize well on another domain is a difficult task, as several shifts might happen between the data domains. This is notably the case for lidar data, for which models can exhibit large…

Computer Vision and Pattern Recognition · Computer Science 2024-06-27 Björn Michele , Alexandre Boulch , Gilles Puy , Tuan-Hung Vu , Renaud Marlet , Nicolas Courty

Extensive Unsupervised Domain Adaptation (UDA) studies have shown great success in practice by learning transferable representations across a labeled source domain and an unlabeled target domain with deep models. However, previous works…

Machine Learning · Computer Science 2021-09-03 Muhammad Awais , Fengwei Zhou , Hang Xu , Lanqing Hong , Ping Luo , Sung-Ho Bae , Zhenguo Li

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.…

Computer Vision and Pattern Recognition · Computer Science 2025-06-24 Ravi Kant Gupta , Shounak Das , Amit Sethi

Spatio-temporal action localization is an important problem in computer vision that involves detecting where and when activities occur, and therefore requires modeling of both spatial and temporal features. This problem is typically…

Computer Vision and Pattern Recognition · Computer Science 2020-10-20 Nakul Agarwal , Yi-Ting Chen , Behzad Dariush , Ming-Hsuan Yang

Most unsupervised domain adaptation (UDA) methods assume that labeled source images are available during model adaptation. However, this assumption is often infeasible owing to confidentiality issues or memory constraints on mobile devices.…

Computer Vision and Pattern Recognition · Computer Science 2023-03-17 JoonHo Lee , Gyemin Lee

Existing object detection models assume both the training and test data are sampled from the same source domain. This assumption does not hold true when these detectors are deployed in real-world applications, where they encounter new…

Computer Vision and Pattern Recognition · Computer Science 2022-10-25 Vibashan VS , Poojan Oza , Vishal M. Patel

Unsupervised Domain Adaptation (UDA) aims to utilize labeled data from a source domain to solve tasks in an unlabeled target domain, often hindered by significant domain gaps. Traditional CNN-based methods struggle to fully capture complex…

Computer Vision and Pattern Recognition · Computer Science 2024-12-06 A. Enes Doruk , Erhan Oztop , Hasan F. Ates

Deep learning models are sensitive to domain shift phenomena. A model trained on images from one domain cannot generalise well when tested on images from a different domain, despite capturing similar anatomical structures. It is mainly…

Computer Vision and Pattern Recognition · Computer Science 2021-03-16 Sulaiman Vesal , Mingxuan Gu , Ronak Kosti , Andreas Maier , Nishant Ravikumar

We propose a novel domain adaptive action detection approach and a new adaptation protocol that leverages the recent advancements in image-level unsupervised domain adaptation (UDA) techniques and handle vagaries of instance-level video…

Computer Vision and Pattern Recognition · Computer Science 2022-10-07 Yifan Lu , Gurkirt Singh , Suman Saha , Luc Van Gool

A dominant approach for addressing unsupervised domain adaptation is to map data points for the source and the target domains into an embedding space which is modeled as the output-space of a shared deep encoder. The encoder is trained to…

Machine Learning · Computer Science 2022-09-30 Mohammad Rostami

Deep neural networks (DNNs) have proven their capabilities in many areas in the past years, such as robotics, or automated driving, enabling technological breakthroughs. DNNs play a significant role in environment perception for the…

Computer Vision and Pattern Recognition · Computer Science 2023-04-25 Manuel Schwonberg , Joshua Niemeijer , Jan-Aike Termöhlen , Jörg P. Schäfer , Nico M. Schmidt , Hanno Gottschalk , Tim Fingscheidt

In an effort to reduce annotation costs in action recognition, unsupervised video domain adaptation methods have been proposed that aim to adapt a predictive model from a labelled dataset (i.e., source domain) to an unlabelled dataset…

Computer Vision and Pattern Recognition · Computer Science 2023-01-10 Giacomo Zara , Victor Guilherme Turrisi da Costa , Subhankar Roy , Paolo Rota , Elisa Ricci

Deep learning based object detectors require thousands of diversified bounding box and class annotated examples. Though image object detectors have shown rapid progress in recent years with the release of multiple large-scale static image…

Computer Vision and Pattern Recognition · Computer Science 2018-10-05 Avisek Lahiri , Charan Reddy , Prabir Kumar Biswas

Unsupervised domain adaptation (UDA) aims to learn transferable knowledge from a labeled source domain and adapts a trained model to an unlabeled target domain. To bridge the gap between source and target domains, one prevailing strategy is…

Computer Vision and Pattern Recognition · Computer Science 2022-03-01 Xu Ma , Junkun Yuan , Yen-wei Chen , Ruofeng Tong , Lanfen Lin

Unsupervised Domain Adaptation (UDA) methods facilitate knowledge transfer from a labeled source domain to an unlabeled target domain, navigating the obstacle of domain shift. While Convolutional Neural Networks (CNNs) are a staple in UDA,…

Computer Vision and Pattern Recognition · Computer Science 2023-12-05 Gauransh Sawhney , Daksh Dave , Adeel Ahmed , Jiechao Gao , Khalid Saleem

In this report, we describe the technical details of our submission to the EPIC-Kitchens-100 Unsupervised Domain Adaptation (UDA) Challenge in Action Recognition. To tackle the domain-shift which exists under the UDA setting, we first…

Computer Vision and Pattern Recognition · Computer Science 2021-07-02 Chiara Plizzari , Mirco Planamente , Emanuele Alberti , Barbara Caputo

Most existing studies on unsupervised domain adaptation (UDA) assume that each domain's training samples come with domain labels (e.g., painting, photo). Samples from each domain are assumed to follow the same distribution and the domain…

Computer Vision and Pattern Recognition · Computer Science 2022-07-27 Zhongying Deng , Kaiyang Zhou , Da Li , Junjun He , Yi-Zhe Song , Tao Xiang

The recent person re-identification research has achieved great success by learning from a large number of labeled person images. On the other hand, the learned models often experience significant performance drops when applied to images…

Computer Vision and Pattern Recognition · Computer Science 2022-10-04 Changgong Zhang , Fangneng Zhan

Domain shift poses a fundamental challenge in time series analysis, where models trained on source domain often fail dramatically when applied in target domain with different yet similar distributions. While current unsupervised domain…

Machine Learning · Computer Science 2025-08-07 Rongyao Cai , Ming Jin , Qingsong Wen , Kexin Zhang

Despite the rapid progress in deep visual recognition, modern computer vision datasets significantly overrepresent the developed world and models trained on such datasets underperform on images from unseen geographies. We investigate the…

Computer Vision and Pattern Recognition · Computer Science 2022-04-26 Viraj Prabhu , Ramprasaath R. Selvaraju , Judy Hoffman , Nikhil Naik