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Related papers: Bottom-Up Temporal Action Localization with Mutual…

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Point-supervised Temporal Action Localization (PTAL) adopts a lightly frame-annotated paradigm (\textit{i.e.}, labeling only a single frame per action instance) to train a model to effectively locate action instances within untrimmed…

Computer Vision and Pattern Recognition · Computer Science 2026-02-06 Yunchuan Ma , Laiyun Qing , Guorong Li , Yuqing Liu , Yuankai Qi , Qingming Huang

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

This report presents our method for Temporal Action Localisation (TAL), which focuses on identifying and classifying actions within specific time intervals throughout a video sequence. We employ a data augmentation technique by expanding…

Computer Vision and Pattern Recognition · Computer Science 2024-10-15 Yinan Han , Qingyuan Jiang , Hongming Mei , Yang Yang , Jinhui Tang

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…

Computer Vision and Pattern Recognition · Computer Science 2022-03-28 Can Zhang , Tianyu Yang , Junwu Weng , Meng Cao , Jue Wang , Yuexian Zou

Point-Level temporal action localization (PTAL) aims to localize actions in untrimmed videos with only one timestamp annotation for each action instance. Existing methods adopt the frame-level prediction paradigm to learn from the sparse…

Computer Vision and Pattern Recognition · Computer Science 2020-12-16 Chen Ju , Peisen Zhao , Ya Zhang , Yanfeng Wang , Qi Tian

Temporal action localization (TAL) involves dual tasks to classify and localize actions within untrimmed videos. However, the two tasks often have conflicting requirements for features. Existing methods typically employ separate heads for…

Computer Vision and Pattern Recognition · Computer Science 2024-12-16 Qiang Li , Di Liu , Jun Kong , Sen Li , Hui Xu , Jianzhong Wang

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…

Computer Vision and Pattern Recognition · Computer Science 2022-12-02 Ding Li , Xuebing Yang , Yongqiang Tang , Chenyang Zhang , Wensheng Zhang

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

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…

Computer Vision and Pattern Recognition · Computer Science 2018-12-18 Zheng Shou , Hang Gao , Lei Zhang , Kazuyuki Miyazawa , Shih-Fu Chang

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…

Computer Vision and Pattern Recognition · Computer Science 2024-07-19 Sangyoun Lee , Juho Jung , Changdae Oh , Sunghee Yun

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

Temporal Action Localization (TAL) task which is to predict the start and end of each action in a video along with the class label of the action has numerous applications in the real world. But due to the complexity of this task, acceptable…

Computer Vision and Pattern Recognition · Computer Science 2022-05-26 Hassan Keshvarikhojasteh , Hoda Mohammadzade , Hamid Behroozi

As of today, state-of-the-art activity recognition from wearable sensors relies on algorithms being trained to classify fixed windows of data. In contrast, video-based Human Activity Recognition, known as Temporal Action Localization (TAL),…

Machine Learning · Computer Science 2024-10-15 Marius Bock , Michael Moeller , Kristof Van Laerhoven

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

Temporal action localization (TAL) is a task of identifying a set of actions in a video, which involves localizing the start and end frames and classifying each action instance. Existing methods have addressed this task by using predefined…

Computer Vision and Pattern Recognition · Computer Science 2022-07-22 Tae-Kyung Kang , Gun-Hee Lee , Seong-Whan Lee

The present few-shot temporal action localization model can't handle the situation where videos contain multiple action instances. So the purpose of this paper is to achieve manifold action instances localization in a lengthy untrimmed…

Computer Vision and Pattern Recognition · Computer Science 2024-08-27 Fengshun Wang , Qiurui Wang , Yuting Wang

Recently, temporal action localization (TAL) has garnered significant interest in information retrieval community. However, existing supervised/weakly supervised methods are heavily dependent on extensive labeled temporal boundaries and…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Yupeng Hu , Han Jiang , Hao Liu , Kun Wang , Haoyu Tang , Liqiang Nie

The goal of Temporal Action Localization (TAL) is to find the categories and temporal boundaries of actions in an untrimmed video. Most TAL methods rely heavily on action recognition models that are sensitive to action labels rather than…

Computer Vision and Pattern Recognition · Computer Science 2023-09-26 Hao Zhang , Chunyan Feng , Jiahui Yang , Zheng Li , Caili Guo

Temporal action localization (TAL) aims to detect the boundary and identify the class of each action instance in a long untrimmed video. Current approaches treat video frames homogeneously, and tend to give background and key objects…

Computer Vision and Pattern Recognition · Computer Science 2022-11-11 Yifan Liu , Youbao Tang , Ning Zhang , Ruei-Sung Lin , Haoqian Wang

Temporal action localization aims to identify the boundaries and categories of actions in videos, such as scoring a goal in a football match. Single-frame supervision has emerged as a labor-efficient way to train action localizers as it…

Human-Computer Interaction · Computer Science 2023-12-11 Changjian Chen , Jiashu Chen , Weikai Yang , Haoze Wang , Johannes Knittel , Xibin Zhao , Steffen Koch , Thomas Ertl , Shixia Liu
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