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Single Domain Generalization (SDG) tackles the problem of training a model on a single source domain so that it generalizes to any unseen target domain. While this has been well studied for image classification, the literature on SDG object…

Computer Vision and Pattern Recognition · Computer Science 2023-03-07 Vidit Vidit , Martin Engilberge , Mathieu Salzmann

Semi- and weakly-supervised learning have recently attracted considerable attention in the object detection literature since they can alleviate the cost of annotation needed to successfully train deep learning models. State-of-art…

Computer Vision and Pattern Recognition · Computer Science 2022-06-20 Akhil Meethal , Marco Pedersoli , Zhongwen Zhu , Francisco Perdigon Romero , Eric Granger

Recently, DEtection TRansformer (DETR), an end-to-end object detection pipeline, has achieved promising performance. However, it requires large-scale labeled data and suffers from domain shift, especially when no labeled data is available…

Computer Vision and Pattern Recognition · Computer Science 2022-08-17 Jinze Yu , Jiaming Liu , Xiaobao Wei , Haoyi Zhou , Yohei Nakata , Denis Gudovskiy , Tomoyuki Okuno , Jianxin Li , Kurt Keutzer , Shanghang Zhang

Recent semi-supervised object detection (SSOD) has achieved remarkable progress by leveraging unlabeled data for training. Mainstream SSOD methods rely on Consistency Regularization methods and Exponential Moving Average (EMA), which form a…

Computer Vision and Pattern Recognition · Computer Science 2024-05-24 Liyu Chen , Huaao Tang , Yi Wen , Hanting Chen , Wei Li , Junchao Liu , Jie Hu

Weakly-supervised object detection (WSOD) aims to train an object detector only requiring the image-level annotations. Recently, some works have managed to select the accurate boxes generated from a well-trained WSOD network to supervise a…

Computer Vision and Pattern Recognition · Computer Science 2022-07-26 Zitong Huang , Yiping Bao , Bowen Dong , Erjin Zhou , Wangmeng Zuo

Although fully-supervised oriented object detection has made significant progress in multimodal remote sensing image understanding, it comes at the cost of labor-intensive annotation. Recent studies have explored weakly and semi-supervised…

Computer Vision and Pattern Recognition · Computer Science 2025-04-16 Yu Lin , Jianghang Lin , Kai Ye , You Shen , Yan Zhang , Shengchuan Zhang , Liujuan Cao , Rongrong Ji

Ideally, visual learning algorithms should be generalizable, for dealing with any unseen domain shift when deployed in a new target environment; and data-efficient, for reducing development costs by using as little labels as possible. To…

Computer Vision and Pattern Recognition · Computer Science 2021-12-17 Kaiyang Zhou , Chen Change Loy , Ziwei Liu

Object detection for autonomous vehicles has received increasing attention in recent years, where labeled data are often expensive while unlabeled data can be collected readily, calling for research on semi-supervised learning for this…

Computer Vision and Pattern Recognition · Computer Science 2022-10-18 Longhui Yu , Yifan Zhang , Lanqing Hong , Fei Chen , Zhenguo Li

Stripe-like space target detection (SSTD) is crucial for space situational awareness. Traditional unsupervised methods often fail in low signal-to-noise ratio and variable stripe-like space targets scenarios, leading to weak generalization.…

Computer Vision and Pattern Recognition · Computer Science 2024-08-12 Zijian Zhu , Ali Zia , Xuesong Li , Bingbing Dan , Yuebo Ma , Hongfeng Long , Kaili Lu , Enhai Liu , Rujin Zhao

Target sound detection (TSD) aims to detect the target sound from mixture audio given the reference information. Previous works have shown that TSD models can be trained on fully-annotated (frame-level label) or weakly-annotated (clip-level…

Sound · Computer Science 2022-07-20 Dongchao Yang , Helin Wang , Yuexian Zou , Wenwu Wang

Object detectors encounter challenges in handling domain shifts. Cutting-edge domain adaptive object detection methods use the teacher-student framework and domain adversarial learning to generate domain-invariant pseudo-labels for…

Computer Vision and Pattern Recognition · Computer Science 2024-08-20 Kaiwen Wang , Yinzhe Shen , Martin Lauer

With the recent development of Semi-Supervised Object Detection (SS-OD) techniques, object detectors can be improved by using a limited amount of labeled data and abundant unlabeled data. However, there are still two challenges that are not…

Computer Vision and Pattern Recognition · Computer Science 2022-06-22 Yen-Cheng Liu , Chih-Yao Ma , Zsolt Kira

To safely deploy autonomous vehicles, onboard perception systems must work reliably at high accuracy across a diverse set of environments and geographies. One of the most common techniques to improve the efficacy of such systems in new…

Computer Vision and Pattern Recognition · Computer Science 2021-03-04 Benjamin Caine , Rebecca Roelofs , Vijay Vasudevan , Jiquan Ngiam , Yuning Chai , Zhifeng Chen , Jonathon Shlens

Semi-supervised object detection (SSOD) aims to boost detection performance by leveraging extra unlabeled data. The teacher-student framework has been shown to be promising for SSOD, in which a teacher network generates pseudo-labels for…

Computer Vision and Pattern Recognition · Computer Science 2022-12-07 Honggyu Choi , Zhixiang Chen , Xuepeng Shi , Tae-Kyun Kim

We approach the challenge of addressing semi-supervised domain generalization (SSDG). Specifically, our aim is to obtain a model that learns domain-generalizable features by leveraging a limited subset of labelled data alongside a…

Computer Vision and Pattern Recognition · Computer Science 2024-05-08 Chamuditha Jayanga Galappaththige , Sanoojan Baliah , Malitha Gunawardhana , Muhammad Haris Khan

Source-free object detection (SFOD) faces persistent challenges due to class imbalance-driven context bias and instability in teacher-student training under noisy pseudo-labels. Existing techniques tend to ignore context bias and…

Computer Vision and Pattern Recognition · Computer Science 2026-05-26 Tajamul Ashraf , Rajes Manna , Partha Sarathi Purkayastha , Tavaheed Tariq , Janibul Bashir

Both limited annotation and domain shift are significant challenges frequently encountered in medical image segmentation, leading to derivative scenarios like semi-supervised medical (SSMIS), semi-supervised medical domain generalization…

Computer Vision and Pattern Recognition · Computer Science 2025-10-30 Wei Li , Pengcheng Zhou , Linye Ma , Wenyi Zhao , Huihua Yang , Yuchen Guo

Current state-of-the-art object detectors can have significant performance drop when deployed in the wild due to domain gaps with training data. Unsupervised Domain Adaptation (UDA) is a promising approach to adapt models for new…

Computer Vision and Pattern Recognition · Computer Science 2021-08-06 Fuxun Yu , Di Wang , Yinpeng Chen , Nikolaos Karianakis , Tong Shen , Pei Yu , Dimitrios Lymberopoulos , Sidi Lu , Weisong Shi , Xiang Chen

Object detectors often suffer a decrease in performance due to the large domain gap between the training data (source domain) and real-world data (target domain). Diffusion-based generative models have shown remarkable abilities in…

Computer Vision and Pattern Recognition · Computer Science 2025-06-05 Boyong He , Yuxiang Ji , Zhuoyue Tan , Liaoni Wu

Few-shot object detection (FSOD) has thrived in recent years to learn novel object classes with limited data by transferring knowledge gained on abundant base classes. FSOD approaches commonly assume that both the scarcely provided examples…

Computer Vision and Pattern Recognition · Computer Science 2022-09-20 Karim Guirguis , George Eskandar , Matthias Kayser , Bin Yang , Juergen Beyerer