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相关论文: Weakly-Supervised Temporal Action Localization wit…

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Weakly supervised temporal action localization aims at learning the instance-level action pattern from the video-level labels, where a significant challenge is action-context confusion. To overcome this challenge, one recent work builds an…

计算机视觉与模式识别 · 计算机科学 2021-11-25 Le Yang , Junwei Han , Tao Zhao , Tianwei Lin , Dingwen Zhang , Jianxin Chen

Point-level weakly-supervised temporal action localization (PWTAL) aims to localize actions with only a single timestamp annotation for each action instance. Existing methods tend to mine dense pseudo labels to alleviate the label sparsity,…

计算机视觉与模式识别 · 计算机科学 2023-09-19 Yueyang Li , Yonghong Hou , Wanqing Li

Weakly-supervised temporal action localization aims to locate action regions and identify action categories in untrimmed videos simultaneously by taking only video-level labels as the supervision. Pseudo label generation is a promising…

计算机视觉与模式识别 · 计算机科学 2023-12-27 Wulian Yun , Mengshi Qi , Chuanming Wang , Huadong Ma

Recently, temporal action localization (TAL), i.e., finding specific action segments in untrimmed videos, has attracted increasing attentions of the computer vision community. State-of-the-art solutions for TAL involves evaluating the…

计算机视觉与模式识别 · 计算机科学 2021-03-01 Peisen Zhao , Lingxi Xie , Chen Ju , Ya Zhang , Yanfeng Wang , Qi Tian

Weakly-Supervised Temporal Action Localization (WSTAL) aims to localize actions in untrimmed videos with only video-level labels. Currently, most state-of-the-art WSTAL methods follow a Multi-Instance Learning (MIL) pipeline: producing…

计算机视觉与模式识别 · 计算机科学 2022-08-24 Meng Cao , Can Zhang , Long Chen , Mike Zheng Shou , Yuexian Zou

Weakly-supervised Temporal Action Localization (WSTAL) aims to localize actions in untrimmed videos using only video-level supervision. Latest WSTAL methods introduce pseudo label learning framework to bridge the gap between…

计算机视觉与模式识别 · 计算机科学 2024-07-15 Qianhan Feng , Wenshuo Li , Tong Lin , Xinghao Chen

Weakly supervised temporal action localization aims to localize temporal boundaries of actions and simultaneously identify their categories with only video-level category labels. Many existing methods seek to generate pseudo labels for…

计算机视觉与模式识别 · 计算机科学 2022-03-15 Linjiang Huang , Liang Wang , Hongsheng Li

Weakly-supervised temporal action localization (WS-TAL) aims to localize actions in untrimmed videos with only video-level labels. Most existing models follow the "localization by classification" procedure: locate temporal regions…

计算机视觉与模式识别 · 计算机科学 2021-07-29 Can Zhang , Meng Cao , Dongming Yang , Jie Chen , Yuexian Zou

Weakly supervised temporal action localization (WTAL) aims to localize actions in untrimmed videos with only weak supervision information (e.g. video-level labels). Most existing models handle all input videos with a fixed temporal scale.…

计算机视觉与模式识别 · 计算机科学 2022-11-22 Weiqi Sun , Rui Su , Qian Yu , Dong Xu

Temporal Action Localization (TAL) in untrimmed video is important for many applications. But it is very expensive to annotate the segment-level ground truth (action class and temporal boundary). This raises the interest of addressing TAL…

计算机视觉与模式识别 · 计算机科学 2018-12-18 Zheng Shou , Hang Gao , Lei Zhang , Kazuyuki Miyazawa , Shih-Fu Chang

Temporal Action Localization (TAL) aims to predict both action category and temporal boundary of action instances in untrimmed videos, i.e., start and end time. Fully-supervised solutions are usually adopted in most existing works, and…

计算机视觉与模式识别 · 计算机科学 2022-12-02 Ding Li , Xuebing Yang , Yongqiang Tang , Chenyang Zhang , Wensheng Zhang

Temporal Action Localization (TAL) is a critical task in video analysis, identifying precise start and end times of actions. Existing methods like CNNs, RNNs, GCNs, and Transformers have limitations in capturing long-range dependencies and…

计算机视觉与模式识别 · 计算机科学 2024-07-19 Sangyoun Lee , Juho Jung , Changdae Oh , Sunghee Yun

Detecting actions in videos have been widely applied in on-device applications. Practical on-device videos are always untrimmed with both action and background. It is desirable for a model to both recognize the class of action and localize…

计算机视觉与模式识别 · 计算机科学 2022-08-29 Yue Tang , Yawen Wu , Peipei Zhou , Jingtong Hu

Unsupervised video representation learning has made remarkable achievements in recent years. However, most existing methods are designed and optimized for video classification. These pre-trained models can be sub-optimal for temporal…

计算机视觉与模式识别 · 计算机科学 2022-03-28 Can Zhang , Tianyu Yang , Junwu Weng , Meng Cao , Jue Wang , Yuexian Zou

Weakly supervised temporal action localization is a challenging task as only the video-level annotation is available during the training process. To address this problem, we propose a two-stage approach to fully exploit multi-resolution…

计算机视觉与模式识别 · 计算机科学 2025-06-24 Rui Su , Dong Xu , Luping Zhou , Wanli Ouyang

Temporal action localization is an important step towards video understanding. Most current action localization methods depend on untrimmed videos with full temporal annotations of action instances. However, it is expensive and…

计算机视觉与模式识别 · 计算机科学 2020-01-23 Ashraful Islam , Richard J. Radke

Weakly supervised video object localization (WSVOL) allows locating object in videos using only global video tags such as object class. State-of-art methods rely on multiple independent stages, where initial spatio-temporal proposals are…

计算机视觉与模式识别 · 计算机科学 2022-10-25 Soufiane Belharbi , Ismail Ben Ayed , Luke McCaffrey , Eric Granger

Weakly-supervised temporal action localization aims to learn detecting temporal intervals of action classes with only video-level labels. To this end, it is crucial to separate frames of action classes from the background frames (i.e.,…

计算机视觉与模式识别 · 计算机科学 2020-12-18 Pilhyeon Lee , Jinglu Wang , Yan Lu , Hyeran Byun

Enabling computational systems with the ability to localize actions in video-based content has manifold applications. Traditionally, such a problem is approached in a fully-supervised setting where video-clips with complete frame-by-frame…

计算机视觉与模式识别 · 计算机科学 2019-05-07 Kurt Degiorgio , Fabio Cuzzolin

We target at the task of weakly-supervised action localization (WSAL), where only video-level action labels are available during model training. Despite the recent progress, existing methods mainly embrace a localization-by-classification…

计算机视觉与模式识别 · 计算机科学 2022-04-01 Junyu Gao , Mengyuan Chen , Changsheng Xu