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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

Weakly-supervised temporal action localization aims to identify and localize the action instances in the untrimmed videos with only video-level action labels. When humans watch videos, we can adapt our abstract-level knowledge about actions…

Computer Vision and Pattern Recognition · Computer Science 2023-12-27 Xijun Wang , Aggelos K. Katsaggelos

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…

Computer Vision and Pattern Recognition · Computer Science 2025-06-24 Rui Su , Dong Xu , Luping Zhou , Wanli Ouyang

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,…

Computer Vision and Pattern Recognition · Computer Science 2023-03-22 Chen Ju , Zeqian Li , Peisen Zhao , Ya Zhang , Xiaopeng Zhang , Qi Tian , Yanfeng Wang , Weidi Xie

This paper tackles the challenge of point-supervised temporal action detection, wherein only a single frame is annotated for each action instance in the training set. Most of the current methods, hindered by the sparse nature of annotated…

Computer Vision and Pattern Recognition · Computer Science 2024-06-07 Elahe Vahdani , Yingli Tian

State-of-the-art temporal action detectors inefficiently search the entire video for specific actions. Despite the encouraging progress these methods achieve, it is crucial to design automated approaches that only explore parts of the video…

Computer Vision and Pattern Recognition · Computer Science 2018-07-30 Humam Alwassel , Fabian Caba Heilbron , Bernard Ghanem

This paper addresses the challenge of point-supervised temporal action detection, in which only one frame per action instance is annotated in the training set. Self-training aims to provide supplementary supervision for the training process…

Computer Vision and Pattern Recognition · Computer Science 2023-11-28 Elahe Vahdani , Yingli Tian

Temporal action segmentation approaches have been very successful recently. However, annotating videos with frame-wise labels to train such models is very expensive and time consuming. While weakly supervised methods trained using only…

Computer Vision and Pattern Recognition · Computer Science 2021-03-29 Zhe Li , Yazan Abu Farha , Juergen Gall

Anomaly action detection and localization play an essential role in security and advanced surveillance systems. However, due to the tremendous amount of surveillance videos, most of the available data for the task is unlabeled or…

Computer Vision and Pattern Recognition · Computer Science 2024-08-27 Nada Osman , Marwan Torki

In Multi-Label Text Classification (MLTC), one sample can belong to more than one class. It is observed that most MLTC tasks, there are dependencies or correlations among labels. Existing methods tend to ignore the relationship among…

Computation and Language · Computer Science 2020-03-27 Ankit Pal , Muru Selvakumar , Malaikannan Sankarasubbu

Temporal Action Detection (TAD) aims to identify the action boundaries and the corresponding category within untrimmed videos. Inspired by the success of DETR in object detection, several methods have adapted the query-based framework to…

Computer Vision and Pattern Recognition · Computer Science 2024-04-02 Yuhan Zhu , Guozhen Zhang , Jing Tan , Gangshan Wu , Limin Wang

In this paper, we introduce a novel large-scale video dataset dubbed MM-SEAL for multi-person multi-grained spatio-temporal action localization among human daily life. We are the first to propose a new benchmark for multi-person…

Computer Vision and Pattern Recognition · Computer Science 2024-11-28 Shimin Chen , Wei Li , Chen Chen , Jianyang Gu , Jiaming Chu , Xunqiang Tao , Yandong Guo

Training temporal action detection in videos requires large amounts of labeled data, yet such annotation is expensive to collect. Incorporating unlabeled or weakly-labeled data to train action detection model could help reduce annotation…

Computer Vision and Pattern Recognition · Computer Science 2021-02-19 Baifeng Shi , Qi Dai , Judy Hoffman , Kate Saenko , Trevor Darrell , Huijuan Xu

Nuanced understanding and the generation of detailed descriptive content for (bimanual) manipulation actions in videos is important for disciplines such as robotics, human-computer interaction, and video content analysis. This study…

Computer Vision and Pattern Recognition · Computer Science 2023-10-03 Fatemeh Ziaeetabar , Reza Safabakhsh , Saeedeh Momtazi , Minija Tamosiunaite , Florentin Wörgötter

This paper focuses on temporal localization of actions in untrimmed videos. Existing methods typically train classifiers for a pre-defined list of actions and apply them in a sliding window fashion. However, activities in the wild consist…

Computer Vision and Pattern Recognition · Computer Science 2017-08-07 Jiyang Gao , Chen Sun , Zhenheng Yang , Ram Nevatia

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

Learning robot policies using imitation learning requires collecting large amounts of costly action-labeled expert demonstrations, which fundamentally limits the scale of training data. A promising approach to address this bottleneck is to…

Robotics · Computer Science 2025-05-12 Anthony Liang , Pavel Czempin , Matthew Hong , Yutai Zhou , Erdem Biyik , Stephen Tu

We are given a set of video clips, each one annotated with an {\em ordered} list of actions, such as "walk" then "sit" then "answer phone" extracted from, for example, the associated text script. We seek to temporally localize the…

Computer Vision and Pattern Recognition · Computer Science 2014-07-07 Piotr Bojanowski , Rémi Lajugie , Francis Bach , Ivan Laptev , Jean Ponce , Cordelia Schmid , Josef Sivic

Recently, the rise of large-scale vision-language pretrained models like CLIP, coupled with the technology of Parameter-Efficient FineTuning (PEFT), has captured substantial attraction in video action recognition. Nevertheless, prevailing…

Computer Vision and Pattern Recognition · Computer Science 2024-01-23 Mengmeng Wang , Jiazheng Xing , Boyuan Jiang , Jun Chen , Jianbiao Mei , Xingxing Zuo , Guang Dai , Jingdong Wang , Yong Liu

As a very popular multi-label classification method, Classifiers Chain has recently been widely applied to many multi-label classification tasks. However, existing Classifier Chains methods are difficult to model and exploit the underlying…

Artificial Intelligence · Computer Science 2022-04-14 Gao Pengfei , Lai Dedi , Zhao Lijiao , Liang Yue , Ma Yinglong