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Class Activation Mapping (CAM) methods have recently gained much attention for weakly-supervised object localization (WSOL) tasks. They allow for CNN visualization and interpretation without training on fully annotated image datasets. CAM…

Computer Vision and Pattern Recognition · Computer Science 2021-10-22 Soufiane Belharbi , Aydin Sarraf , Marco Pedersoli , Ismail Ben Ayed , Luke McCaffrey , Eric Granger

Weakly supervised object localization (WSOL) is a challenging problem when given image category labels but requires to learn object localization models. Optimizing a convolutional neural network (CNN) for classification tends to activate…

Computer Vision and Pattern Recognition · Computer Science 2021-08-05 Wei Gao , Fang Wan , Xingjia Pan , Zhiliang Peng , Qi Tian , Zhenjun Han , Bolei Zhou , Qixiang Ye

Weakly-supervised object localization (WSOL) has gained popularity over the last years for its promise to train localization models with only image-level labels. Since the seminal WSOL work of class activation mapping (CAM), the field has…

Computer Vision and Pattern Recognition · Computer Science 2021-12-08 Junsuk Choe , Seong Joon Oh , Sanghyuk Chun , Seungho Lee , Zeynep Akata , Hyunjung Shim

Weakly Supervised Object Localization (WSOL), which aims to localize objects by only using image-level labels, has attracted much attention because of its low annotation cost in real applications. Recent studies leverage the advantage of…

Computer Vision and Pattern Recognition · Computer Science 2023-03-13 Haotian Bai , Ruimao Zhang , Jiong Wang , Xiang Wan

Weakly Supervised Semantic Segmentation (WSSS) with image-level labels has long been suffering from fragmentary object regions led by Class Activation Map (CAM), which is incapable of generating fine-grained masks for semantic segmentation.…

Computer Vision and Pattern Recognition · Computer Science 2023-03-07 Jiren Mai , Fei Zhang , Junjie Ye , Marcus Kalander , Xian Zhang , WanKou Yang , Tongliang Liu , Bo Han

Weakly supervised object localization (WSOL) aims to localize objects by only utilizing image-level labels. Class activation maps (CAMs) are the commonly used features to achieve WSOL. However, previous CAM-based methods did not take full…

Computer Vision and Pattern Recognition · Computer Science 2021-08-03 Jun Wei , Qin Wang , Zhen Li , Sheng Wang , S. Kevin Zhou , Shuguang Cui

Leveraging spatiotemporal information in videos is critical for weakly supervised video object localization (WSVOL) tasks. However, state-of-the-art methods only rely on visual and motion cues, while discarding discriminative information,…

Computer Vision and Pattern Recognition · Computer Science 2025-01-28 Soufiane Belharbi , Shakeeb Murtaza , Marco Pedersoli , Ismail Ben Ayed , Luke McCaffrey , Eric Granger

Weakly Supervised Object Localization (WSOL) methods generate both classification and localization results by learning from only image category labels. Previous methods usually utilize class activation map (CAM) to obtain target object…

Computer Vision and Pattern Recognition · Computer Science 2021-01-14 Ziyi Kou , Guofeng Cui , Shaojie Wang , Wentian Zhao , Chenliang Xu

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

Extracting class activation maps (CAM) from a classification model often results in poor coverage on foreground objects, i.e., only the discriminative region (e.g., the "head" of "sheep") is recognized and the rest (e.g., the "leg" of…

Computer Vision and Pattern Recognition · Computer Science 2023-03-21 Zhaozheng Chen , Qianru Sun

Generating precise class-aware pseudo ground-truths, a.k.a, class activation maps (CAMs), is essential for weakly-supervised semantic segmentation. The original CAM method usually produces incomplete and inaccurate localization maps. To…

Computer Vision and Pattern Recognition · Computer Science 2022-09-21 Jinlong Li , Zequn Jie , Xu Wang , Xiaolin Wei , Lin Ma

Weakly Supervised Object Localization (WSOL), which aims to localize objects by only using image-level labels, has attracted much attention because of its low annotation cost in real applications. Current studies focus on the Class…

Computer Vision and Pattern Recognition · Computer Science 2025-05-09 Xi Yang , Songsong Duan , Nannan Wang , Xinbo Gao

Weakly supervised object localization(WSOL) remains an open problem given the deficiency of finding object extent information using a classification network. Although prior works struggled to localize objects through various spatial…

Computer Vision and Pattern Recognition · Computer Science 2021-03-31 Xingjia Pan , Yingguo Gao , Zhiwen Lin , Fan Tang , Weiming Dong , Haolei Yuan , Feiyue Huang , Changsheng Xu

Obtaining accurate pixel-level localization from class labels is a crucial process in weakly supervised semantic segmentation and object localization. Attribution maps from a trained classifier are widely used to provide pixel-level…

Computer Vision and Pattern Recognition · Computer Science 2022-04-12 Jungbeom Lee , Eunji Kim , Jisoo Mok , Sungroh Yoon

Weakly supervised object localization (WSOL) is a challenging problem which aims to localize objects with only image-level labels. Due to the lack of ground truth bounding boxes, class labels are mainly employed to train the model. This…

Computer Vision and Pattern Recognition · Computer Science 2020-11-24 Sabrina Narimene Benassou , Wuzhen Shi , Feng Jiang , Abdallah Benzine

Using deep learning models to diagnose cancer from histology data presents several challenges. Cancer grading and localization of regions of interest (ROIs) in these images normally relies on both image- and pixel-level labels, the latter…

Computer Vision and Pattern Recognition · Computer Science 2023-06-29 Jérôme Rony , Soufiane Belharbi , Jose Dolz , Ismail Ben Ayed , Luke McCaffrey , Eric Granger

Weakly-Supervised Video Object Localization (WSVOL) involves localizing an object in videos using only video-level labels, also referred to as tags. State-of-the-art WSVOL methods like Temporal CAM (TCAM) rely on class activation mapping…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Shakeeb Murtaza , Marco Pedersoli , Aydin Sarraf , Eric Granger

Localizing objects with weak supervision in an image is a key problem of the research in computer vision community. Many existing Weakly-Supervised Object Localization (WSOL) approaches tackle this problem by estimating the most…

Computer Vision and Pattern Recognition · Computer Science 2019-09-25 Pei Lv , Haiyu Yu , Junxiao Xue , Junjin Cheng , Lisha Cui , Bing Zhou , Mingliang Xu , Yi Yang

Most of the existing semantic segmentation approaches with image-level class labels as supervision, highly rely on the initial class activation map (CAM) generated from the standard classification network. In this paper, a novel…

Computer Vision and Pattern Recognition · Computer Science 2022-09-19 Jinlong Li , Zequn Jie , Xu Wang , Yu Zhou , Xiaolin Wei , Lin Ma

Weakly supervised object localization (WSOL) aims to localize objects using only image-level labels. Recently a new paradigm has emerged by generating a foreground prediction map (FPM) to achieve localization task. Existing FPM-based…

Computer Vision and Pattern Recognition · Computer Science 2022-04-05 Pingyu Wu , Wei Zhai , Yang Cao