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相关论文: Test-Time Zero-Shot Temporal Action Localization

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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…

计算机视觉与模式识别 · 计算机科学 2022-05-26 Hassan Keshvarikhojasteh , Hoda Mohammadzade , Hamid Behroozi

Temporal action localization is a recently-emerging task, aiming to localize video segments from untrimmed videos that contain specific actions. Despite the remarkable recent progress, most two-stage action localization methods still suffer…

计算机视觉与模式识别 · 计算机科学 2019-08-05 Guoqiang Gong , Liangfeng Zheng , Kun Bai , Yadong Mu

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…

计算机视觉与模式识别 · 计算机科学 2024-06-07 Elahe Vahdani , Yingli Tian

Temporal Action Localization (TAL) aims to identify actions' start, end, and class labels in untrimmed videos. While recent advancements using transformer networks and Feature Pyramid Networks (FPN) have enhanced visual feature recognition…

计算机视觉与模式识别 · 计算机科学 2023-10-06 Edward Fish , Jon Weinbren , Andrew Gilbert

Zero-shot Video Object Segmentation (ZSVOS) aims at segmenting the primary moving object without any human annotations. Mainstream solutions mainly focus on learning a single model on large-scale video datasets, which struggle to generalize…

计算机视觉与模式识别 · 计算机科学 2024-03-08 Weihuang Liu , Xi Shen , Haolun Li , Xiuli Bi , Bo Liu , Chi-Man Pun , Xiaodong Cun

Video action localization aims to find the timings of specific actions from a long video. Although existing learning-based approaches have been successful, they require annotating videos, which comes with a considerable labor cost. This…

计算机视觉与模式识别 · 计算机科学 2025-04-08 Naoki Wake , Atsushi Kanehira , Kazuhiro Sasabuchi , Jun Takamatsu , Katsushi Ikeuchi

Visual Place Recognition (VPR) has evolved from handcrafted descriptors to deep learning approaches, yet significant challenges remain. Current approaches, including Vision Foundation Models (VFMs) and Multimodal Large Language Models…

机器学习 · 计算机科学 2025-09-03 Jintao Cheng , Weibin Li , Jiehao Luo , Xiaoyu Tang , Zhijian He , Jin Wu , Yao Zou , Wei Zhang

Video Temporal Grounding (VTG) aims to localize relevant temporal segments in videos given natural language queries. Despite recent progress with large vision-language models (LVLMs) and instruction-tuning, existing approaches often suffer…

计算机视觉与模式识别 · 计算机科学 2025-07-25 Ruizhe Chen , Zhiting Fan , Tianze Luo , Heqing Zou , Zhaopeng Feng , Guiyang Xie , Hansheng Zhang , Zhuochen Wang , Zuozhu Liu , Huaijian Zhang

Online Temporal Action Localization (On-TAL) aims to immediately provide action instances from untrimmed streaming videos. The model is not allowed to utilize future frames and any processing techniques to modify past predictions, making…

计算机视觉与模式识别 · 计算机科学 2022-11-10 Tuan N. Tang , Jungin Park , Kwonyoung Kim , Kwanghoon Sohn

There is a growing interest in learning a model which could recognize novel classes with only a few labeled examples. In this paper, we propose Temporal Alignment Module (TAM), a novel few-shot learning framework that can learn to classify…

计算机视觉与模式识别 · 计算机科学 2019-06-28 Kaidi Cao , Jingwei Ji , Zhangjie Cao , Chien-Yi Chang , Juan Carlos Niebles

Spatio-temporal action detection encompasses the tasks of localizing and classifying individual actions within a video. Recent works aim to enhance this process by incorporating interaction modeling, which captures the relationship between…

计算机视觉与模式识别 · 计算机科学 2024-12-06 Wei-Jhe Huang , Min-Hung Chen , Shang-Hong Lai

Video understanding has shown remarkable improvements in recent years, largely dependent on the availability of large scaled labeled datasets. Recent advancements in visual-language models, especially based on contrastive pretraining, have…

计算机视觉与模式识别 · 计算机科学 2025-04-08 Shreyank N Gowda , Boyan Gao , Xiao Gu , Xiaobo Jin

Existing video copy detection methods generally measure video similarity based on spatial similarities between key frames, neglecting the latent similarity in temporal dimension, so that the video similarity is biased towards spatial…

计算机视觉与模式识别 · 计算机科学 2021-08-05 Zhen Han , Xiangteng He , Mingqian Tang , Yiliang Lv

Weakly-supervised Temporal Action Localization (WTAL) has achieved notable success but still suffers from a lack of temporal annotations, leading to a performance and framework gap compared with fully-supervised methods. While recent…

计算机视觉与模式识别 · 计算机科学 2025-04-22 Ziyi Liu , Yangcen Liu

Temporal Action Localization (TAL) remains a fundamental challenge in video understanding, aiming to identify the start time, end time, and category of all action instances within untrimmed videos. While recent single-stage, anchor-free…

计算机视觉与模式识别 · 计算机科学 2025-12-02 Thisara Rathnayaka , Uthayasanker Thayasivam

We address the problem of fine-grained action localization from temporally untrimmed web videos. We assume that only weak video-level annotations are available for training. The goal is to use these weak labels to identify temporal segments…

计算机视觉与模式识别 · 计算机科学 2015-08-05 Chen Sun , Sanketh Shetty , Rahul Sukthankar , Ram Nevatia

Online temporal action localization from an untrimmed video stream is a challenging problem in computer vision. It is challenging because of i) in an untrimmed video stream, more than one action instance may appear, including background…

计算机视觉与模式识别 · 计算机科学 2020-03-18 Da-Hye Yoon , Nam-Gyu Cho , Seong-Whan Lee

Traditional temporal action detection (TAD) usually handles untrimmed videos with small number of action instances from a single label (e.g., ActivityNet, THUMOS). However, this setting might be unrealistic as different classes of actions…

计算机视觉与模式识别 · 计算机科学 2023-03-22 Jing Tan , Xiaotong Zhao , Xintian Shi , Bin Kang , Limin Wang

Temporal Action Detection (TAD) is an essential and challenging topic in video understanding, aiming to localize the temporal segments containing human action instances and predict the action categories. The previous works greatly rely upon…

计算机视觉与模式识别 · 计算机科学 2021-09-21 Jiannan Wu , Peize Sun , Shoufa Chen , Jiewen Yang , Zihao Qi , Lan Ma , Ping Luo

In this work, we focus on semi-supervised learning for video action detection which utilizes both labeled as well as unlabeled data. We propose a simple end-to-end consistency based approach which effectively utilizes the unlabeled data.…

计算机视觉与模式识别 · 计算机科学 2022-07-04 Akash Kumar , Yogesh Singh Rawat