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Domain adaptation helps generalizing object detection models to target domain data with distribution shift. It is often achieved by adapting with access to the whole target domain data. In a more realistic scenario, target distribution is…

Computer Vision and Pattern Recognition · Computer Science 2023-04-03 Yijin Chen , Xun Xu , Yongyi Su , Kui Jia

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

Domain Adaptive Object Detection (DAOD) models a joint distribution of images and labels from an annotated source domain and learns a domain-invariant transformation to estimate the target labels with the given target domain images.…

Computer Vision and Pattern Recognition · Computer Science 2022-04-07 Xinyu Liu , Wuyang Li , Qiushi Yang , Baopu Li , Yixuan Yuan

Applying pseudo labeling techniques has been found to be advantageous in semi-supervised 3D object detection (SSOD) in Bird's-Eye-View (BEV) for autonomous driving, particularly where labeled data is limited. In the literature, Exponential…

Computer Vision and Pattern Recognition · Computer Science 2024-12-06 Saheli Hazra , Sudip Das , Rohit Choudhary , Arindam Das , Ganesh Sistu , Ciaran Eising , Ujjwal Bhattacharya

Deep learning based object detectors struggle generalizing to a new target domain bearing significant variations in object and background. Most current methods align domains by using image or instance-level adversarial feature alignment.…

Computer Vision and Pattern Recognition · Computer Science 2023-11-10 Muhammad Akhtar Munir , Muhammad Haris Khan , M. Saquib Sarfraz , Mohsen Ali

Domain adaptive object detection (DAOD) aims to generalize an object detector trained on labeled source-domain data to a target domain without annotations, the core principle of which is \emph{source-target feature alignment}. Typically,…

Computer Vision and Pattern Recognition · Computer Science 2024-12-18 Xinyu He , Xinhui Li , Xiaojie Guo

Deep learning (DL) techniques are highly effective for defect detection from images. Training DL classification models, however, requires vast amounts of labeled data which is often expensive to collect. In many cases, not only the…

Computer Vision and Pattern Recognition · Computer Science 2023-06-02 Adrian Shuai Li , Elisa Bertino , Rih-Teng Wu , Ting-Yan Wu

Domain adaptation (DA) is transfer learning which aims to learn an effective predictor on target data from source data despite data distribution mismatch between source and target. We present in this paper a novel unsupervised DA method for…

Computer Vision and Pattern Recognition · Computer Science 2018-02-23 Lingkun Luo , Liming Chen , Ying lu , Shiqiang Hu

In real-world applications, an object detector often encounters object instances from new classes and needs to accommodate them effectively. Previous work formulated this critical problem as incremental object detection (IOD), which assumes…

Computer Vision and Pattern Recognition · Computer Science 2024-01-12 Ziqi Yuan , Liyuan Wang , Wenbo Ding , Xingxing Zhang , Jiachen Zhong , Jianyong Ai , Jianmin Li , Jun Zhu

Cross domain object detection learns an object detector for an unlabeled target domain by transferring knowledge from an annotated source domain. Promising results have been achieved via Mean Teacher, however, pseudo labeling which is the…

Computer Vision and Pattern Recognition · Computer Science 2024-07-11 Jiangming Chen , Li Liu , Wanxia Deng , Zhen Liu , Yu Liu , Yingmei Wei , Yongxiang Liu

This work addresses the unsupervised adaptation of an existing object detector to a new target domain. We assume that a large number of unlabeled videos from this domain are readily available. We automatically obtain labels on the target…

Computer Vision and Pattern Recognition · Computer Science 2019-04-17 Aruni RoyChowdhury , Prithvijit Chakrabarty , Ashish Singh , SouYoung Jin , Huaizu Jiang , Liangliang Cao , Erik Learned-Miller

I present the Lower Biased Teacher model, an enhancement of the Unbiased Teacher model, specifically tailored for semi-supervised object detection tasks. The primary innovation of this model is the integration of a localization loss into…

Computer Vision and Pattern Recognition · Computer Science 2024-10-07 Shuang Wang

We present an approach to domain adaptation, addressing the case where data from the source domain is abundant, labelled data from the target domain is limited or non-existent, and a small amount of paired source-target data is available.…

Machine Learning · Statistics 2020-03-20 Lawrence G. Phillips , David B. Grimes , Yihan Jessie Li

Semi-Supervised Object Detection (SSOD) has achieved resounding success by leveraging unlabeled data to improve detection performance. However, in Open Scene Semi-Supervised Object Detection (O-SSOD), unlabeled data may contains unknown…

Computer Vision and Pattern Recognition · Computer Science 2024-01-04 Jingyu Zhuang , Kuo Wang , Liang Lin , Guanbin Li

Semi-Supervised Object Detection (SSOD) has been successful in improving the performance of both R-CNN series and anchor-free detectors. However, one-stage anchor-based detectors lack the structure to generate high-quality or flexible…

Computer Vision and Pattern Recognition · Computer Science 2023-03-15 Bowen Xu , Mingtao Chen , Wenlong Guan , Lulu Hu

Unsupervised domain adaptation (UDA) assumes that source and target domain data are freely available and usually trained together to reduce the domain gap. However, considering the data privacy and the inefficiency of data transmission, it…

Computer Vision and Pattern Recognition · Computer Science 2020-12-11 Xianfeng Li , Weijie Chen , Di Xie , Shicai Yang , Peng Yuan , Shiliang Pu , Yueting Zhuang

We study adapting trained object detectors to unseen domains manifesting significant variations of object appearance, viewpoints and backgrounds. Most current methods align domains by either using image or instance-level feature alignment…

Computer Vision and Pattern Recognition · Computer Science 2021-10-04 Muhammad Akhtar Munir , Muhammad Haris Khan , M. Saquib Sarfraz , Mohsen Ali

Unsupervised domain adaptation object detection (UDAOD) research on Detection Transformer(DETR) mainly focuses on feature alignment and existing methods can be divided into two kinds, each of which has its unresolved issues. One-stage…

Computer Vision and Pattern Recognition · Computer Science 2024-01-19 Weixi Weng , Chun Yuan

Distantly-Supervised Named Entity Recognition (DS-NER) effectively alleviates the data scarcity problem in NER by automatically generating training samples. Unfortunately, the distant supervision may induce noisy labels, thus undermining…

Computation and Language · Computer Science 2022-12-14 Xiaoye Qu , Jun Zeng , Daizong Liu , Zhefeng Wang , Baoxing Huai , Pan Zhou

Deep Neural Networks trained in a fully supervised fashion are the dominant technology in perception-based autonomous driving systems. While collecting large amounts of unlabeled data is already a major undertaking, only a subset of it can…

Computer Vision and Pattern Recognition · Computer Science 2020-04-10 Elmar Haussmann , Michele Fenzi , Kashyap Chitta , Jan Ivanecky , Hanson Xu , Donna Roy , Akshita Mittel , Nicolas Koumchatzky , Clement Farabet , Jose M. Alvarez