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相关论文: Weakly Supervised Temporal Action Localization Thr…

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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…

计算机视觉与模式识别 · 计算机科学 2020-12-16 Chen Ju , Peisen Zhao , Ya Zhang , Yanfeng Wang , Qi Tian

Temporal action localization plays an important role in video analysis, which aims to localize and classify actions in untrimmed videos. The previous methods often predict actions on a feature space of a single-temporal scale. However, the…

计算机视觉与模式识别 · 计算机科学 2022-08-17 Zan Gao , Xinglei Cui , Tao Zhuo , Zhiyong Cheng , An-An Liu , Meng Wang , Shenyong Chen

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…

计算机视觉与模式识别 · 计算机科学 2024-10-15 Yinan Han , Qingyuan Jiang , Hongming Mei , Yang Yang , Jinhui Tang

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

Weakly-supervised action localization requires training a model to localize the action segments in the video given only video level action label. It can be solved under the Multiple Instance Learning (MIL) framework, where a bag (video)…

计算机视觉与模式识别 · 计算机科学 2020-12-23 Zhekun Luo , Devin Guillory , Baifeng Shi , Wei Ke , Fang Wan , Trevor Darrell , Huijuan Xu

Weakly-supervised temporal action localization aims to localize actions in untrimmed videos with only video-level action category labels. Most of previous methods ignore the incompleteness issue of Class Activation Sequences (CAS),…

计算机视觉与模式识别 · 计算机科学 2021-04-07 Chen Ju , Peisen Zhao , Siheng Chen , Ya Zhang , Xiaoyun Zhang , Qi Tian

We present a method for weakly-supervised action localization based on graph convolutions. In order to find and classify video time segments that correspond to relevant action classes, a system must be able to both identify discriminative…

计算机视觉与模式识别 · 计算机科学 2020-02-05 Maheen Rashid , Hedvig Kjellström , Yong Jae Lee

Effectively tackling the problem of temporal action localization (TAL) necessitates a visual representation that jointly pursues two confounding goals, i.e., fine-grained discrimination for temporal localization and sufficient visual…

计算机视觉与模式识别 · 计算机科学 2021-08-10 Zixin Zhu , Wei Tang , Le Wang , Nanning Zheng , Gang Hua

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

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…

计算机视觉与模式识别 · 计算机科学 2025-04-01 Yupeng Hu , Han Jiang , Hao Liu , Kun Wang , Haoyu Tang , Liqiang Nie

Weakly-supervised temporal action localization (WTAL) aims to recognize and localize action instances with only video-level labels. Despite the significant progress, existing methods suffer from severe performance degradation when…

计算机视觉与模式识别 · 计算机科学 2024-04-23 Yangcen Liu , Ziyi Liu , Yuanhao Zhai , Wen Li , David Doerman , Junsong Yuan

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

Online Temporal Action Localization (On-TAL) aims to detect the occurrence time and category of actions in untrimmed streaming videos immediately upon their completion. Recent advancements in this field focus on developing more…

计算机视觉与模式识别 · 计算机科学 2026-05-12 Chaolei Han , Hongsong Wang , Xin Gong , Jie Gui

Weakly supervised temporal action localization is a challenging vision task due to the absence of ground-truth temporal locations of actions in the training videos. With only video-level supervision during training, most existing methods…

计算机视觉与模式识别 · 计算机科学 2021-03-26 Ashraful Islam , Chengjiang Long , Richard Radke

Localizing actions in video is a core task in computer vision. The weakly supervised temporal localization problem investigates whether this task can be adequately solved with only video-level labels, significantly reducing the amount of…

计算机视觉与模式识别 · 计算机科学 2021-05-07 Junwei Ma , Satya Krishna Gorti , Maksims Volkovs , Guangwei Yu

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 (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

In this paper, we consider the problem of temporal action localization under low-shot (zero-shot & few-shot) scenario, with the goal of detecting and classifying the action instances from arbitrary categories within some untrimmed videos,…

计算机视觉与模式识别 · 计算机科学 2023-03-22 Chen Ju , Zeqian Li , Peisen Zhao , Ya Zhang , Xiaopeng Zhang , Qi Tian , Yanfeng Wang , Weidi Xie

Weakly-supervised temporal action localization (WTAL) learns to detect and classify action instances with only category labels. Most methods widely adopt the off-the-shelf Classification-Based Pre-training (CBP) to generate video features…

计算机视觉与模式识别 · 计算机科学 2022-12-20 Chen Ju , Kunhao Zheng , Jinxiang Liu , Peisen Zhao , Ya Zhang , Jianlong Chang , Yanfeng Wang , Qi Tian

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