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Related papers: Boosting Weakly-Supervised Temporal Action Localiz…

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Weakly-supervised Temporal Action Localization (WS-TAL) methods learn to localize temporal starts and ends of action instances in a video under only video-level supervision. Existing WS-TAL methods rely on deep features learned for action…

Computer Vision and Pattern Recognition · Computer Science 2021-03-31 Ziyi Liu , Le Wang , Wei Tang , Junsong Yuan , Nanning Zheng , Gang Hua

Weakly-supervised temporal action localization aims to recognize and localize action segments in untrimmed videos given only video-level action labels for training. Without the boundary information of action segments, existing methods…

Computer Vision and Pattern Recognition · Computer Science 2022-03-30 Bo He , Xitong Yang , Le Kang , Zhiyu Cheng , Xin Zhou , Abhinav Shrivastava

Weakly Supervised Temporal Action Localization (WTAL) aims to classify and localize temporal boundaries of actions for the video, given only video-level category labels in the training datasets. Due to the lack of boundary information…

Computer Vision and Pattern Recognition · Computer Science 2023-04-26 Guozhang Li , De Cheng , Xinpeng Ding , Nannan Wang , Jie Li , Xinbo Gao

Most activity localization methods in the literature suffer from the burden of frame-wise annotation requirement. Learning from weak labels may be a potential solution towards reducing such manual labeling effort. Recent years have…

Computer Vision and Pattern Recognition · Computer Science 2018-12-18 Sujoy Paul , Sourya Roy , Amit K Roy-Chowdhury

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…

Computer Vision and Pattern Recognition · Computer Science 2020-01-23 Ashraful Islam , Richard J. Radke

Weakly Supervised Temporal Action Localization (WSTAL) aims to localize and classify action instances in long untrimmed videos with only video-level category labels. Due to the lack of snippet-level supervision for indicating action…

Computer Vision and Pattern Recognition · Computer Science 2024-09-09 Jia-Run Du , Jia-Chang Feng , Kun-Yu Lin , Fa-Ting Hong , Xiao-Ming Wu , Zhongang Qi , Ying Shan , Wei-Shi Zheng

With video-level labels, weakly supervised temporal action localization (WTAL) applies a localization-by-classification paradigm to detect and classify the action in untrimmed videos. Due to the characteristic of classification,…

Computer Vision and Pattern Recognition · Computer Science 2022-07-15 Ziqiang Li , Yongxin Ge , Jiaruo Yu , Zhongming Chen

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…

Computer Vision and Pattern Recognition · Computer Science 2023-12-27 Wulian Yun , Mengshi Qi , Chuanming Wang , Huadong Ma

Weakly supervised temporal action localization (WSTAL) aims to localize actions in untrimmed videos using video-level labels. Despite recent advances, existing approaches mainly follow a localization-by-classification pipeline, generally…

Computer Vision and Pattern Recognition · Computer Science 2023-12-12 Songchun Zhang , Chunhui Zhao

Recently, Weakly-supervised Temporal Action Localization (WTAL) has been densely studied but there is still a large gap between weakly-supervised models and fully-supervised models. It is practical and intuitive to annotate temporal…

Computer Vision and Pattern Recognition · Computer Science 2020-03-24 Xudong Lin , Zheng Shou , Shih-Fu Chang

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…

Computer Vision and Pattern Recognition · Computer Science 2024-07-15 Qianhan Feng , Wenshuo Li , Tong Lin , Xinghao Chen

Recent breakthroughs in Multimodal Large Language Models (MLLMs) have gained significant recognition within the deep learning community, where the fusion of the Video Foundation Models (VFMs) and Large Language Models(LLMs) has proven…

Computer Vision and Pattern Recognition · Computer Science 2025-06-10 Quan Zhang , Jinwei Fang , Rui Yuan , Xi Tang , Yuxin Qi , Ke Zhang , Chun Yuan

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.…

Computer Vision and Pattern Recognition · Computer Science 2022-11-22 Weiqi Sun , Rui Su , Qian Yu , Dong Xu

The crux of semi-supervised temporal action localization (SS-TAL) lies in excavating valuable information from abundant unlabeled videos. However, current approaches predominantly focus on building models that are robust to the error-prone…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 Kun Xia , Le Wang , Sanping Zhou , Gang Hua , Wei Tang

Weakly-Supervised Temporal Action Localization (WS-TAL) task aims to recognize and localize temporal starts and ends of action instances in an untrimmed video with only video-level label supervision. Due to lack of negative samples of…

Computer Vision and Pattern Recognition · Computer Science 2021-06-23 Xiang Wang , Zhiwu Qing , Ziyuan Huang , Yutong Feng , Shiwei Zhang , Jianwen Jiang , Mingqian Tang , Yuanjie Shao , Nong Sang

This technical report presents an overview of our solution used in the submission to 2021 HACS Temporal Action Localization Challenge on both Supervised Learning Track and Weakly-Supervised Learning Track. Temporal Action Localization (TAL)…

Computer Vision and Pattern Recognition · Computer Science 2021-07-28 Haisheng Su , Peiqin Zhuang , Yukun Li , Dongliang Wang , Weihao Gan , Wei Wu , Yu Qiao

Point-level supervised temporal action localization (PTAL) aims at recognizing and localizing actions in untrimmed videos where only a single point (frame) within every action instance is annotated in training data. Without temporal…

Computer Vision and Pattern Recognition · Computer Science 2023-10-10 Yuan Yin , Yifei Huang , Ryosuke Furuta , Yoichi Sato

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…

Computer Vision and Pattern Recognition · Computer Science 2022-03-15 Linjiang Huang , Liang Wang , Hongsheng Li

Weakly-supervised Temporal Action Localization (W-TAL) aims to classify and localize all action instances in an untrimmed video under only video-level supervision. However, without frame-level annotations, it is challenging for W-TAL…

Computer Vision and Pattern Recognition · Computer Science 2020-10-23 Yuanhao Zhai , Le Wang , Wei Tang , Qilin Zhang , Junsong Yuan , Gang Hua

Weakly-supervised temporal action localization (WTAL) in untrimmed videos has emerged as a practical but challenging task since only video-level labels are available. Existing approaches typically leverage off-the-shelf segment-level…

Computer Vision and Pattern Recognition · Computer Science 2021-12-22 Zichen Yang , Jie Qin , Di Huang
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