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We consider the problem of weakly supervised object detection, where the training samples are annotated using only image-level labels that indicate the presence or absence of an object category. In order to model the uncertainty in the…

Computer Vision and Pattern Recognition · Computer Science 2018-11-27 Aditya Arun , C. V. Jawahar , M. Pawan Kumar

Weakly supervised object detection aims at learning precise object detectors, given image category labels. In recent prevailing works, this problem is generally formulated as a multiple instance learning module guided by an image…

Computer Vision and Pattern Recognition · Computer Science 2019-04-02 Xiaoyan Li , Meina Kan , Shiguang Shan , Xilin Chen

Learning to localize and name object instances is a fundamental problem in vision, but state-of-the-art approaches rely on expensive bounding box supervision. While weakly supervised detection (WSOD) methods relax the need for boxes to that…

Computer Vision and Pattern Recognition · Computer Science 2019-08-19 Keren Ye , Mingda Zhang , Adriana Kovashka , Wei Li , Danfeng Qin , Jesse Berent

Fine-grained object categorization aims for distinguishing objects of subordinate categories that belong to the same entry-level object category. The task is challenging due to the facts that (1) training images with ground-truth labels are…

Computer Vision and Pattern Recognition · Computer Science 2019-12-05 Yabin Zhang , Kui Jia , Zhixin Wang

Object detectors trained on fully-annotated data currently yield state of the art performance but require expensive manual annotations. On the other hand, weakly-supervised detectors have much lower performance and cannot be used reliably…

Computer Vision and Pattern Recognition · Computer Science 2020-02-19 Linpu Fang , Hang Xu , Zhili Liu , Sarah Parisot , Zhenguo Li

Existing object detectors often struggle to generalize across domains while adapting to emerging novel categories. Adaptive open-set object detection (AOOD) addresses this challenge by training on base categories in the source domain and…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Yuqi Ji , Junjie Ke , Lihuo He , Lizhi Wang , Xinbo Gao

Object detection under imperfect data receives great attention recently. Weakly supervised object detection (WSOD) suffers from severe localization issues due to the lack of instance-level annotation, while semi-supervised object detection…

Computer Vision and Pattern Recognition · Computer Science 2022-03-31 Hanjun Li , Xingjia Pan , Ke Yan , Fan Tang , Wei-Shi Zheng

Weakly supervised object detection aims at reducing the amount of supervision required to train detection models. Such models are traditionally learned from images/videos labelled only with the object class and not the object bounding box.…

Computer Vision and Pattern Recognition · Computer Science 2019-04-04 Zhenheng Yang , Dhruv Mahajan , Deepti Ghadiyaram , Ram Nevatia , Vignesh Ramanathan

The reliability of artificial intelligence (AI) systems in open-world settings depends heavily on their ability to flag out-of-distribution (OOD) inputs unseen during training. Recent advances in large-scale vision-language models (VLMs)…

Machine Learning · Computer Science 2025-10-14 Faizul Rakib Sayem , Shahana Ibrahim

In this paper, we study the problem of semi-supervised 3D object detection, which is of great importance considering the high annotation cost for cluttered 3D indoor scenes. We resort to the robust and principled framework of selfteaching,…

Computer Vision and Pattern Recognition · Computer Science 2023-08-14 Huan-ang Gao , Beiwen Tian , Pengfei Li , Hao Zhao , Guyue Zhou

Driven by the growing need for Oriented Object Detection (OOD), learning from point annotations under a weakly-supervised framework has emerged as a promising alternative to costly and laborious manual labeling. In this paper, we discuss…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Teng Zhang , Ziqian Fan , Mingxin Liu , Xin Zhang , Xudong Lu , Wentong Li , Yue Zhou , Yi Yu , Xiang Li , Junchi Yan , Xue Yang

Underwater object detection (UOD), aiming to identify and localise the objects in underwater images or videos, presents significant challenges due to the optical distortion, water turbidity, and changing illumination in underwater scenes.…

Computer Vision and Pattern Recognition · Computer Science 2024-10-10 Long Chen , Yuzhi Huang , Junyu Dong , Qi Xu , Sam Kwong , Huimin Lu , Huchuan Lu , Chongyi Li

Annotation-efficient segmentation of the numerous mitochondria instances from various electron microscopy (EM) images is highly valuable for biological and neuroscience research. Although unsupervised domain adaptation (UDA) methods can…

Computer Vision and Pattern Recognition · Computer Science 2026-05-04 Shan Xiong , Jiabao Chen , Ye Wang , Jialin Peng

The great progress of 3D object detectors relies on large-scale data and 3D annotations. The annotation cost for 3D bounding boxes is extremely expensive while the 2D ones are easier and cheaper to collect. In this paper, we introduce a…

Computer Vision and Pattern Recognition · Computer Science 2022-11-16 Jinrong Yang , Tiancai Wang , Zheng Ge , Weixin Mao , Xiaoping Li , Xiangyu Zhang

Open-vocabulary 3D Object Detection (OV-3DDet) aims to detect objects from an arbitrary list of categories within a 3D scene, which remains seldom explored in the literature. There are primarily two fundamental problems in OV-3DDet, i.e.,…

Computer Vision and Pattern Recognition · Computer Science 2023-10-05 Yang Cao , Yihan Zeng , Hang Xu , Dan Xu

The difficulty of pixel-level annotation has significantly hindered the development of the Camouflaged Object Detection (COD) field. To save on annotation costs, previous works leverage the semi-supervised COD framework that relies on a…

Computer Vision and Pattern Recognition · Computer Science 2025-08-26 Weiqi Yan , Lvhai Chen , Shengchuan Zhang , Yan Zhang , Liujuan Cao

Open World Object Detection (OWOD) combines open-set object detection with incremental learning capabilities to handle the challenge of the open and dynamic visual world. Existing works assume that a foreground predictor trained on the seen…

Computer Vision and Pattern Recognition · Computer Science 2023-11-07 Xuanyi Liu , Zhongqi Yue , Xian-Sheng Hua

Supervised learning based object detection frameworks demand plenty of laborious manual annotations, which may not be practical in real applications. Semi-supervised object detection (SSOD) can effectively leverage unlabeled data to improve…

Computer Vision and Pattern Recognition · Computer Science 2021-03-23 Qiang Zhou , Chaohui Yu , Zhibin Wang , Qi Qian , Hao Li

Deep learning has emerged as an effective solution for solving the task of object detection in images but at the cost of requiring large labeled datasets. To mitigate this cost, semi-supervised object detection methods, which consist in…

Computer Vision and Pattern Recognition · Computer Science 2025-02-18 Renaud Vandeghen , Gilles Louppe , Marc Van Droogenbroeck

Detecting out-of-domain (OOD) intents from user queries is essential for a task-oriented dialogue system. Previous OOD detection studies generally work on the assumption that plenty of labeled IND intents exist. In this paper, we focus on a…

Computation and Language · Computer Science 2024-02-23 Pei Wang , Keqing He , Yutao Mou , Xiaoshuai Song , Yanan Wu , Jingang Wang , Yunsen Xian , Xunliang Cai , Weiran Xu
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