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Object detection in sonar images is a key technology in underwater detection systems. Compared to natural images, sonar images contain fewer texture details and are more susceptible to noise, making it difficult for non-experts to…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Chengzhou Li , Ping Guo , Guanchen Meng , Qi Jia , Jinyuan Liu , Zhu Liu , Xiaokang Liu , Yu Liu , Zhongxuan Luo , Xin Fan

To address the annotation burden in LiDAR-based 3D object detection, active learning (AL) methods offer a promising solution. However, traditional active learning approaches solely rely on a small amount of labeled data to train an initial…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Zengran Wang , Yanan Zhang , Jiaxin Chen , Di Huang

We address the task of domain adaptation in object detection, where there is a domain gap between a domain with annotations (source) and a domain of interest without annotations (target). As an effective semi-supervised learning method, the…

Computer Vision and Pattern Recognition · Computer Science 2022-05-13 Yu-Jhe Li , Xiaoliang Dai , Chih-Yao Ma , Yen-Cheng Liu , Kan Chen , Bichen Wu , Zijian He , Kris Kitani , Peter Vajda

State-of-the-art 3D object detectors are usually trained on large-scale datasets with high-quality 3D annotations. However, such 3D annotations are often expensive and time-consuming, which may not be practical for real applications. A…

Computer Vision and Pattern Recognition · Computer Science 2023-04-05 Chuandong Liu , Chenqiang Gao , Fangcen Liu , Pengcheng Li , Deyu Meng , Xinbo Gao

Semi-supervised object detection (SSOD) based on pseudo-labeling significantly reduces dependence on large labeled datasets by effectively leveraging both labeled and unlabeled data. However, real-world applications of SSOD often face…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Moussa Kassem Sbeyti , Nadja Klein , Azarm Nowzad , Fikret Sivrikaya , Sahin Albayrak

Robust weed detection remains a challenging task in precision weeding, requiring not only potent weed detection models but also large-scale, labeled data. However, the labeled data adequate for model training is practically difficult to…

Computer Vision and Pattern Recognition · Computer Science 2025-02-26 Boyang Deng , Yuzhen Lu

Semi-supervised object detection (SSOD), leveraging unlabeled data to boost object detectors, has become a hot topic recently. However, existing SSOD approaches mainly focus on horizontal objects, leaving oriented objects common in aerial…

Computer Vision and Pattern Recognition · Computer Science 2025-09-26 Dingkang Liang , Wei Hua , Chunsheng Shi , Zhikang Zou , Xiaoqing Ye , Xiang Bai

Scale variation across object instances remains a key challenge in object detection task. Despite the remarkable progress made by modern detection models, this challenge is particularly evident in the semi-supervised case. While existing…

Computer Vision and Pattern Recognition · Computer Science 2023-03-17 Liang Liu , Boshen Zhang , Jiangning Zhang , Wuhao Zhang , Zhenye Gan , Guanzhong Tian , Wenbing Zhu , Yabiao Wang , Chengjie Wang

Semi-supervised learning (SSL) has a potential to improve the predictive performance of machine learning models using unlabeled data. Although there has been remarkable recent progress, the scope of demonstration in SSL has mainly been on…

Computer Vision and Pattern Recognition · Computer Science 2020-12-04 Kihyuk Sohn , Zizhao Zhang , Chun-Liang Li , Han Zhang , Chen-Yu Lee , Tomas Pfister

Given that labeled data is expensive to obtain in real-world scenarios, many semi-supervised algorithms have explored the task of exploitation of unlabeled data. Traditional tri-training algorithm and tri-training with disagreement have…

Machine Learning · Computer Science 2019-09-26 Yash Bhalgat , Zhe Liu , Pritam Gundecha , Jalal Mahmud , Amita Misra

Facial landmark detection aims to localize the anatomically defined points of human faces. In this paper, we study facial landmark detection from partially labeled facial images. A typical approach is to (1) train a detector on the labeled…

Computer Vision and Pattern Recognition · Computer Science 2019-08-14 Xuanyi Dong , Yi Yang

Semi-supervised 3D object detection, aiming to explore unlabeled data for boosting 3D object detectors, has emerged as an active research area in recent years. Some previous methods have shown substantial improvements by either employing…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Jingyu Li , Xiaolong Zhao , Zhe Liu , Wenxiao Wu , Li Zhang

Semi-supervised learning aims to leverage numerous unlabeled data to improve the model performance. Current semi-supervised 3D object detection methods typically use a teacher to generate pseudo labels for a student, and the quality of the…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Xiaopei Wu , Liang Peng , Liang Xie , Yuenan Hou , Binbin Lin , Xiaoshui Huang , Haifeng Liu , Deng Cai , Wanli Ouyang

The performance of object detection, to a great extent, depends on the availability of large annotated datasets. To alleviate the annotation cost, the research community has explored a number of ways to exploit unlabeled or weakly labeled…

Computer Vision and Pattern Recognition · Computer Science 2021-05-25 Shijie Fang , Yuhang Cao , Xinjiang Wang , Kai Chen , Dahua Lin , Wayne Zhang

Fully-supervised salient object detection (SOD) methods have made great progress, but such methods often rely on a large number of pixel-level annotations, which are time-consuming and labour-intensive. In this paper, we focus on a new…

Computer Vision and Pattern Recognition · Computer Science 2022-09-08 Runmin Cong , Qi Qin , Chen Zhang , Qiuping Jiang , Shiqi Wang , Yao Zhao , Sam Kwong

Exploiting pseudo labels (e.g., categories and bounding boxes) of unannotated objects produced by a teacher detector have underpinned much of recent progress in semi-supervised object detection (SSOD). However, due to the limited…

Computer Vision and Pattern Recognition · Computer Science 2023-02-01 Lei Zhang , Yuxuan Sun , Wei Wei

Semi-Supervised Object Detection (SSOD), aiming to explore unlabeled data for boosting object detectors, has become an active task in recent years. However, existing SSOD approaches mainly focus on horizontal objects, leaving multi-oriented…

Computer Vision and Pattern Recognition · Computer Science 2023-04-11 Wei Hua , Dingkang Liang , Jingyu Li , Xiaolong Liu , Zhikang Zou , Xiaoqing Ye , Xiang Bai

Effective weed control plays a crucial role in optimizing crop yield and enhancing agricultural product quality. However, the reliance on herbicide application not only poses a critical threat to the environment but also promotes the…

Computer Vision and Pattern Recognition · Computer Science 2024-03-07 Jiajia Li , Dong Chen , Xunyuan Yin , Zhaojian Li

This study delves into semi-supervised object detection (SSOD) to improve detector performance with additional unlabeled data. State-of-the-art SSOD performance has been achieved recently by self-training, in which training supervision…

Computer Vision and Pattern Recognition · Computer Science 2021-07-13 Fangyuan Zhang , Tianxiang Pan , Bin Wang

One of the most important factors in training object recognition networks using convolutional neural networks (CNNs) is the provision of annotated data accompanying human judgment. Particularly, in object detection or semantic segmentation,…

Computer Vision and Pattern Recognition · Computer Science 2018-02-21 Min-Kook Choi , Jaehyeong Park , Jihun Jung , Heechul Jung , Jin-Hee Lee , Woong Jae Won , Woo Young Jung , Jincheol Kim , Soon Kwon