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Current state-of-the-art weakly supervised object detection (WSOD) studies mainly follow a two-stage training strategy which integrates a fully supervised detector (FSD) with a pure WSOD model. There are two main problems hindering the…

Computer Vision and Pattern Recognition · Computer Science 2022-03-21 Jun Wang , Hefeng Zhou , Xiaohan Yu

Recent advances in deep learning have led to the development of accurate and efficient models for various computer vision applications such as classification, segmentation, and detection. However, learning highly accurate models relies on…

Computer Vision and Pattern Recognition · Computer Science 2021-07-06 Poojan Oza , Vishwanath A. Sindagi , Vibashan VS , Vishal M. Patel

Pseudo-label based self training approaches are a popular method for source-free unsupervised domain adaptation. However, their efficacy depends on the quality of the labels generated by the source trained model. These labels may be…

Computer Vision and Pattern Recognition · Computer Science 2021-10-01 Deepti Hegde , Vishwanath Sindagi , Velat Kilic , A. Brinton Cooper , Mark Foster , Vishal Patel

Unsupervised Domain Adaptive Object Detection (UDA-OD) uses unlabelled data to improve the reliability of robotic vision systems in open-world environments. Previous approaches to UDA-OD based on self-training have been effective in…

Computer Vision and Pattern Recognition · Computer Science 2023-08-29 Nicolas Harvey Chapman , Feras Dayoub , Will Browne , Christopher Lehnert

Previous unsupervised domain adaptation (UDA) methods aim to promote target learning via a single-directional knowledge transfer from label-rich source domain to unlabeled target domain, while its reverse adaption from target to source has…

Computer Vision and Pattern Recognition · Computer Science 2022-07-12 Yunyun Wang , Weiwen Zheng , Songcan 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

Annotating large scale datasets to train modern convolutional neural networks is prohibitively expensive and time-consuming for many real tasks. One alternative is to train the model on labeled synthetic datasets and apply it in the real…

Computer Vision and Pattern Recognition · Computer Science 2019-08-13 Yuhu Shan , Wen Feng Lu , Chee Meng Chew

For monocular depth estimation, acquiring ground truths for real data is not easy, and thus domain adaptation methods are commonly adopted using the supervised synthetic data. However, this may still incur a large domain gap due to the lack…

Computer Vision and Pattern Recognition · Computer Science 2022-09-20 Yu-Ting Yen , Chia-Ni Lu , Wei-Chen Chiu , Yi-Hsuan Tsai

Simulation data can be accurately labeled and have been expected to improve the performance of data-driven algorithms, including object detection. However, due to the various domain inconsistencies from simulation to reality…

Computer Vision and Pattern Recognition · Computer Science 2024-10-01 Meiying Zhang , Weiyuan Peng , Guangyao Ding , Chenyang Lei , Chunlin Ji , Qi Hao

The extremes of lighting (e.g. too much or too little light) usually cause many troubles for machine and human vision. Many recent works have mainly focused on under-exposure cases where images are often captured in low-light conditions…

Computer Vision and Pattern Recognition · Computer Science 2022-10-04 Hue Nguyen , Diep Tran , Khoi Nguyen , Rang Nguyen

Day-to-night unpaired image translation is important to downstream tasks but remains challenging due to large appearance shifts and the lack of direct pixel-level supervision. Existing methods often introduce semantic hallucinations, where…

Computer Vision and Pattern Recognition · Computer Science 2026-02-18 Shuwei Li , Lei Tan , Robby T. Tan

Real-time transportation surveillance is an essential part of the intelligent transportation system (ITS). However, images captured under low-light conditions often suffer the poor visibility with types of degradation, such as noise…

Computer Vision and Pattern Recognition · Computer Science 2023-09-18 Jingxiang Qu , Ryan Wen Liu , Yuan Gao , Yu Guo , Fenghua Zhu , Fei-yue Wang

Weakly supervised segmentation methods have gained significant attention due to their ability to reduce the reliance on costly pixel-level annotations during model training. However, the current weakly supervised nuclei segmentation…

Image and Video Processing · Electrical Eng. & Systems 2025-02-04 Ye Zhang , Yifeng Wang , Zijie Fang , Hao Bian , Linghan Cai , Ziyue Wang , Yongbing Zhang

Underwater degraded images greatly challenge existing algorithms to detect objects of interest. Recently, researchers attempt to adopt attention mechanisms or composite connections for improving the feature representation of detectors.…

Computer Vision and Pattern Recognition · Computer Science 2023-07-10 Chenping Fu , Wanqi Yuan , Jiewen Xiao , Risheng Liu , Xin Fan

Low-visibility scenarios, such as low-light conditions, pose significant challenges to human pose estimation due to the scarcity of annotated low-light datasets and the loss of visual information under poor illumination. Recent domain…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Haopeng Chen , Yihao Ai , Kabeen Kim , Robby T. Tan , Yixin Chen , Bo Wang

Person re-identification is a key technology for analyzing video-based human behavior; however, its application is still challenging in practical situations due to the performance degradation for domains different from those in the training…

Computer Vision and Pattern Recognition · Computer Science 2022-10-26 S. Takeuchi , F. Li , S. Iwasaki , J. Ning , G. Suzuki

Unsupervised domain adaptation (DA) with the aid of pseudo labeling techniques has emerged as a crucial approach for domain-adaptive 3D object detection. While effective, existing DA methods suffer from a substantial drop in performance…

Computer Vision and Pattern Recognition · Computer Science 2023-08-21 Zhuoxiao Chen , Yadan Luo , Zheng Wang , Mahsa Baktashmotlagh , Zi Huang

Driving is challenging in conditions like night, rain, and snow. Lack of good labeled datasets has hampered progress in scene understanding under such conditions. Unsupervised Domain Adaptation (UDA) using large labeled clear-day datasets…

Computer Vision and Pattern Recognition · Computer Science 2024-12-05 Shen Zheng , Anurag Ghosh , Srinivasa G. Narasimhan

Object detection in urban scenarios is crucial for autonomous driving in intelligent traffic systems. However, unlike conventional object detection tasks, urban-scene images vary greatly in style. For example, images taken on sunny days…

Computer Vision and Pattern Recognition · Computer Science 2023-11-23 Lei Qi , Peng Dong , Tan Xiong , Hui Xue , Xin Geng

We consider the problem of unsupervised domain adaptation for image classification. To learn target-domain-aware features from the unlabeled data, we create a self-supervised pretext task by augmenting the unlabeled data with a certain type…

Computer Vision and Pattern Recognition · Computer Science 2020-10-16 L. Xiao , J. Xu , D. Zhao , Z. Wang , L. Wang , Y. Nie , B. Dai