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We propose an approach for unsupervised adaptation of object detectors from label-rich to label-poor domains which can significantly reduce annotation costs associated with detection. Recently, approaches that align distributions of source…

Computer Vision and Pattern Recognition · Computer Science 2019-04-09 Kuniaki Saito , Yoshitaka Ushiku , Tatsuya Harada , Kate Saenko

Object detection has achieved remarkable progress in the past decade. However, the detection of oriented and densely packed objects remains challenging because of following inherent reasons: (1) receptive fields of neurons are all…

Computer Vision and Pattern Recognition · Computer Science 2020-06-12 Xingjia Pan , Yuqiang Ren , Kekai Sheng , Weiming Dong , Haolei Yuan , Xiaowei Guo , Chongyang Ma , Changsheng Xu

Recently recurrent neural networks (RNNs) have demonstrated the ability to improve scene labeling through capturing long-range dependencies among image units. In this paper, we propose dense RNNs for scene labeling by exploring various…

Computer Vision and Pattern Recognition · Computer Science 2018-01-23 Heng Fan , Haibin Ling

Large training datasets almost always contain examples with inaccurate or incorrect labels. Deep Neural Networks (DNNs) tend to overfit training label noise, resulting in poorer model performance in practice. To address this problem, we…

Computer Vision and Pattern Recognition · Computer Science 2022-03-01 Chen Gong , Kong Bin , Eric J. Seibel , Xin Wang , Youbing Yin , Qi Song

Training a modern deep neural network on massive labeled samples is the main paradigm in solving the scene classification problem for remote sensing, but learning from only a few data points remains a challenge. Existing methods for…

Computer Vision and Pattern Recognition · Computer Science 2020-09-29 Haifeng Li , Zhenqi Cui , Zhiqing Zhu , Li Chen , Jiawei Zhu , Haozhe Huang , Chao Tao

Existing anchor-base oriented object detection methods have achieved amazing results, but these methods require some manual preset boxes, which introduces additional hyperparameters and calculations. The existing anchor-free methods usually…

Computer Vision and Pattern Recognition · Computer Science 2021-12-02 Zhonghua Li , Biao Hou , Zitong Wu , Licheng Jiao , Bo Ren , Chen Yang

Traditional deep learning-based object detection networks often resize images during the data preprocessing stage to achieve a uniform size and scale in the feature map. Resizing is done to facilitate model propagation and fully connected…

Computer Vision and Pattern Recognition · Computer Science 2024-04-08 Weile Li , Muqing Shi , Zhonghua Hong

In dense retrieval, effective training hinges on selecting high quality hard negatives while avoiding false negatives. Recent methods apply heuristics based on positive document scores to identify hard negatives, improving both performance…

Information Retrieval · Computer Science 2025-08-19 Bongsu Kim

Dense object tracking, the ability to localize specific object points with pixel-level accuracy, is an important computer vision task with numerous downstream applications in robotics. Existing approaches either compute dense keypoint…

Robotics · Computer Science 2021-12-14 Mel Vecerik , Jackie Kay , Raia Hadsell , Lourdes Agapito , Jon Scholz

With basic Semi-Supervised Object Detection (SSOD) techniques, one-stage detectors generally obtain limited promotions compared with two-stage clusters. We experimentally find that the root lies in two kinds of ambiguities: (1) Selection…

Computer Vision and Pattern Recognition · Computer Science 2023-03-28 Chang Liu , Weiming Zhang , Xiangru Lin , Wei Zhang , Xiao Tan , Junyu Han , Xiaomao Li , Errui Ding , Jingdong Wang

Despite its significant success, object detection in traffic and transportation scenarios requires time-consuming and laborious efforts in acquiring high-quality labeled data. Therefore, Unsupervised Domain Adaptation (UDA) for object…

Computer Vision and Pattern Recognition · Computer Science 2025-07-02 Zehua Fu , Chenguang Liu , Yuyu Chen , Jiaqi Zhou , Qingjie Liu , Yunhong Wang

State-of-the-art object detectors rely on regressing and classifying an extensive list of possible anchors, which are divided into positive and negative samples based on their intersection-over-union (IoU) with corresponding groundtruth…

Computer Vision and Pattern Recognition · Computer Science 2020-06-01 Hengduo Li , Zuxuan Wu , Chen Zhu , Caiming Xiong , Richard Socher , Larry S. Davis

A common practice in transfer learning is to initialize the downstream model weights by pre-training on a data-abundant upstream task. In object detection specifically, the feature backbone is typically initialized with Imagenet classifier…

Computer Vision and Pattern Recognition · Computer Science 2022-06-28 Cristina Vasconcelos , Vighnesh Birodkar , Vincent Dumoulin

Few-shot object detection (FSOD) aims to detect objects using only a few examples. How to adapt state-of-the-art object detectors to the few-shot domain remains challenging. Object proposal is a key ingredient in modern object detectors.…

Computer Vision and Pattern Recognition · Computer Science 2022-06-03 Guangxing Han , Shiyuan Huang , Jiawei Ma , Yicheng He , Shih-Fu Chang

Region sampling or weighting is significantly important to the success of modern region-based object detectors. Unlike some previous works, which only focus on "hard" samples when optimizing the objective function, we argue that sample…

Computer Vision and Pattern Recognition · Computer Science 2020-06-16 Qi Cai , Yingwei Pan , Yu Wang , Jingen Liu , Ting Yao , Tao Mei

Recently, adversarial-based domain adaptive object detection (DAOD) methods have been developed rapidly. However, there are two issues that need to be resolved urgently. Firstly, numerous methods reduce the distributional shifts only by…

Computer Vision and Pattern Recognition · Computer Science 2020-12-17 Chengyang Liang , Zixiang Zhao , Junmin Liu , Jiangshe Zhang

This manuscript presents a series of my selected contributions to the topic of label-efficient learning in computer vision and remote sensing. The central focus of this research is to develop and adapt methods that can learn effectively…

Computer Vision and Pattern Recognition · Computer Science 2025-08-25 Minh-Tan Pham

Incremental few-shot learning is highly expected for practical robotics applications. On one hand, robot is desired to learn new tasks quickly and flexibly using only few annotated training samples; on the other hand, such new additional…

Computer Vision and Pattern Recognition · Computer Science 2022-03-24 Yiting Li , Haiyue Zhu , Sichao Tian , Fan Feng , Jun Ma , Chek Sing Teo , Cheng Xiang , Prahlad Vadakkepat , Tong Heng Lee

The ambiguous appearance, tiny scale, and fine-grained classes of objects in remote sensing imagery inevitably lead to the noisy annotations in category labels of detection dataset. However, the effects and treatments of the label noises…

Computer Vision and Pattern Recognition · Computer Science 2024-05-16 Guozhang Liu , Ting Liu , Mengke Yuan , Tao Pang , Guangxing Yang , Hao Fu , Tao Wang , Tongkui Liao

Semi-supervised object detection (SSOD) aims to facilitate the training and deployment of object detectors with the help of a large amount of unlabeled data. Though various self-training based and consistency-regularization based SSOD…

Computer Vision and Pattern Recognition · Computer Science 2022-04-18 Binghui Chen , Pengyu Li , Xiang Chen , Biao Wang , Lei Zhang , Xian-Sheng Hua