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Weakly Supervised Object Localization (WSOL) methodsusually rely on fully convolutional networks in order to ob-tain class activation maps(CAMs) of targeted labels. How-ever, these networks always highlight the most discriminativeparts to…

Computer Vision and Pattern Recognition · Computer Science 2019-09-12 Ziyi Kou , Wentian Zhao , Guofeng Cui , Shaojie Wang

Weakly supervised object detection (WSOD) focuses on training object detector with only image-level annotations, and is challenging due to the gap between the supervision and the objective. Most of existing approaches model WSOD as a…

Computer Vision and Pattern Recognition · Computer Science 2019-06-17 Yan Gao , Boxiao Liu , Nan Guo , Xiaochun Ye , Fang Wan , Haihang You , Dongrui Fan

Weakly Supervised Object Detection (WSOD) with only image-level annotation has recently attracted wide attention. Many existing methods ignore the inter-image relationship of instances which share similar characteristics while can certainly…

Computer Vision and Pattern Recognition · Computer Science 2024-06-28 Yu Zhang , Chuang Zhu , Guoqing Yang , Siqi Chen

Most WSOD methods rely on traditional object proposals to generate candidate regions and are confronted with unstable training, which easily gets stuck in a poor local optimum. In this paper, we introduce a unified, high-capacity weakly…

Computer Vision and Pattern Recognition · Computer Science 2024-06-28 Liujuan Cao , Jianghang Lin , Zebo Hong , Yunhang Shen , Shaohui Lin , Chao Chen , Rongrong Ji

Though image-level weakly supervised semantic segmentation (WSSS) has achieved great progress with Class Activation Maps (CAMs) as the cornerstone, the large supervision gap between classification and segmentation still hampers the model to…

Computer Vision and Pattern Recognition · Computer Science 2022-03-15 Ye Du , Zehua Fu , Qingjie Liu , Yunhong Wang

Weakly supervised multiple instance learning (MIL) is a challenging task given that only bag-level labels are provided, while each bag typically contains multiple instances. This topic has been extensively studied in histopathological image…

Computer Vision and Pattern Recognition · Computer Science 2025-08-01 Bodong Zhang , Hamid Manoochehri , Xiwen Li , Beatrice S. Knudsen , Tolga Tasdizen

Digital histopathology whole slide images (WSIs) provide gigapixel-scale high-resolution images that are highly useful for disease diagnosis. However, digital histopathology image analysis faces significant challenges due to the limited…

Computer Vision and Pattern Recognition · Computer Science 2026-02-13 Bodong Zhang , Xiwen Li , Hamid Manoochehri , Xiaoya Tang , Deepika Sirohi , Beatrice S. Knudsen , Tolga Tasdizen

In recent years, weakly supervised object detection (WSOD) has attracted much attention due to its low labeling cost. The success of recent WSOD models is often ascribed to the two-stage multi-class classification (MCC) task, i.e., multiple…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Yufei Yin , Lechao Cheng , Wengang Zhou , Jiajun Deng , Zhou Yu , Houqiang Li

Weakly supervised object detection~(WSOD) has recently attracted much attention. However, the lack of bounding-box supervision makes its accuracy much lower than fully supervised object detection (FSOD), and currently modern FSOD techniques…

Computer Vision and Pattern Recognition · Computer Science 2022-05-10 Lin Sui , Chen-Lin Zhang , Jianxin Wu

Weakly supervised instance segmentation (WSIS) using only image-level labels is a challenging task due to the difficulty of aligning coarse annotations with the finer task. However, with the advancement of deep neural networks (DNNs), WSIS…

Computer Vision and Pattern Recognition · Computer Science 2024-02-13 Zecheng Li , Zening Zeng , Yuqi Liang , Jin-Gang Yu

Weakly supervised object localization (WSOL) focuses on localizing objects only with the supervision of image-level classification masks. Most previous WSOL methods follow the classification activation map (CAM) that localizes objects based…

Computer Vision and Pattern Recognition · Computer Science 2022-03-28 Lei Zhu , Qi She , Qian Chen , Yunfei You , Boyu Wang , Yanye Lu

The use of pretrained deep neural networks represents an attractive way to achieve strong results with few data available. When specialized in dense problems such as object detection, learning local rather than global information in images…

Computer Vision and Pattern Recognition · Computer Science 2023-10-26 Quentin Bouniot , Romaric Audigier , Angélique Loesch , Amaury Habrard

Unsupervised object discovery (UOD) refers to the task of discriminating the whole region of objects from the background within a scene without relying on labeled datasets, which benefits the task of bounding-box-level localization and…

Computer Vision and Pattern Recognition · Computer Science 2023-07-10 Yunqiu Lv , Jing Zhang , Nick Barnes , Yuchao Dai

Weakly supervised semantic segmentation (WSSS) has gained significant popularity since it relies only on weak labels such as image level annotations rather than pixel level annotations required by supervised semantic segmentation (SSS)…

Computer Vision and Pattern Recognition · Computer Science 2022-01-19 Kunhao Yuan , Gerald Schaefer , Yu-Kun Lai , Yifan Wang , Xiyao Liu , Lin Guan , Hui Fang

Weakly supervised object detection (WSOD) is a challenging task, in which image-level labels (e.g., categories of the instances in the whole image) are used to train an object detector. Many existing methods follow the standard multiple…

Computer Vision and Pattern Recognition · Computer Science 2023-05-18 Guanchun Wang , Xiangrong Zhang , Zelin Peng , Xu Tang , Huiyu Zhou , Licheng Jiao

Weakly-Supervised Object Detection (WSOD) and Localization (WSOL), i.e., detecting multiple and single instances with bounding boxes in an image using image-level labels, are long-standing and challenging tasks in the CV community. With the…

Computer Vision and Pattern Recognition · Computer Science 2021-05-27 Feifei Shao , Long Chen , Jian Shao , Wei Ji , Shaoning Xiao , Lu Ye , Yueting Zhuang , Jun Xiao

This paper reports a new solution of leveraging temporal classification to support weakly supervised object detection (WSOD). Specifically, we introduce raster scan-order techniques to serialize 2D images into 1D sequence data, and then…

Computer Vision and Pattern Recognition · Computer Science 2021-03-10 Chia-Yu Hsu , Wenwen Li

The acquisition of large-scale, precisely labeled datasets for person re-identification (ReID) poses a significant challenge. Weakly supervised ReID has begun to address this issue, although its performance lags behind fully supervised…

Computer Vision and Pattern Recognition · Computer Science 2024-02-13 Jacob Tyo , Zachary C. Lipton

Training object detectors with only image-level annotations is very challenging because the target objects are often surrounded by a large number of background clutters. Many existing approaches tackle this problem through object proposal…

Computer Vision and Pattern Recognition · Computer Science 2017-08-08 Wenhui Jiang , Thuyen Ngo , B. S. Manjunath , Zhicheng Zhao , Fei Su

Weakly supervised object detection (WSOD) aims to tackle the object detection problem using only labeled image categories as supervision. A common approach used in WSOD to deal with the lack of localization information is Multiple Instance…

Computer Vision and Pattern Recognition · Computer Science 2020-04-24 Luis Felipe Zeni , Claudio Jung