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相关论文: Weakly-Supervised Temporal Action Localization by …

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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…

计算机视觉与模式识别 · 计算机科学 2021-12-22 Zichen Yang , Jie Qin , Di Huang

Previous work on action representation learning focused on global representations for short video clips. In contrast, many practical applications, such as video alignment, strongly demand learning the intensive representation of long…

计算机视觉与模式识别 · 计算机科学 2023-03-03 Minghao Chen , Renbo Tu , Chenxi Huang , Yuqi Lin , Boxi Wu , Deng Cai

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…

计算机视觉与模式识别 · 计算机科学 2025-06-10 Quan Zhang , Jinwei Fang , Rui Yuan , Xi Tang , Yuxin Qi , Ke Zhang , Chun Yuan

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…

计算机视觉与模式识别 · 计算机科学 2025-06-24 Rui Su , Dong Xu , Luping Zhou , Wanli Ouyang

Temporal action localization presents a trade-off between test performance and annotation-time cost. Fully supervised methods achieve good performance with time-consuming boundary annotations. Weakly supervised methods with cheaper…

计算机视觉与模式识别 · 计算机科学 2020-07-06 Xinpeng Ding , Nannan Wang , Xinbo Gao , Jie Li , Xiaoyu Wang , Tongliang Liu

Weakly-supervised temporal action localization (WTAL) intends to detect action instances with only weak supervision, e.g., video-level labels. The current~\textit{de facto} pipeline locates action instances by thresholding and grouping…

计算机视觉与模式识别 · 计算机科学 2024-05-06 Qinying Liu , Zilei Wang , Ruoxi Chen , Zhilin Li

Weakly-Supervised Video Object Localization (WSVOL) involves localizing an object in videos using only video-level labels, also referred to as tags. State-of-the-art WSVOL methods like Temporal CAM (TCAM) rely on class activation mapping…

计算机视觉与模式识别 · 计算机科学 2024-07-09 Shakeeb Murtaza , Marco Pedersoli , Aydin Sarraf , Eric Granger

Temporal Activity Detection aims to predict activity classes per frame, in contrast to video-level predictions in Activity Classification (i.e., Activity Recognition). Due to the expensive frame-level annotations required for detection, the…

计算机视觉与模式识别 · 计算机科学 2023-02-07 Kumara Kahatapitiya , Zhou Ren , Haoxiang Li , Zhenyu Wu , Michael S. Ryoo , Gang Hua

Weakly supervised temporal action detection is a Herculean task in understanding untrimmed videos, since no supervisory signal except the video-level category label is available on training data. Under the supervision of category labels,…

计算机视觉与模式识别 · 计算机科学 2018-07-19 Jia-Xing Zhong , Nannan Li , Weijie Kong , Tao Zhang , Thomas H. Li , Ge Li

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…

计算机视觉与模式识别 · 计算机科学 2024-03-19 Kun Xia , Le Wang , Sanping Zhou , Gang Hua , Wei Tang

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

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 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…

计算机视觉与模式识别 · 计算机科学 2020-10-23 Yuanhao Zhai , Le Wang , Wei Tang , Qilin Zhang , Junsong Yuan , Gang Hua

The Audio-Visual Video Parsing task aims to identify and temporally localize the events that occur in either or both the audio and visual streams of audible videos. It often performs in a weakly-supervised manner, where only video event…

计算机视觉与模式识别 · 计算机科学 2024-06-04 Jinxing Zhou , Dan Guo , Yiran Zhong , Meng Wang

In recent years, Contrastive Language-Image Pretraining (CLIP) has been widely applied to Weakly Supervised Semantic Segmentation (WSSS) tasks due to its powerful cross-modal semantic understanding capabilities. This paper proposes a novel…

计算机视觉与模式识别 · 计算机科学 2025-12-23 Xiuli Bi , Die Xiao , Junchao Fan , Bin Xiao

Alleviating noisy pseudo labels remains a key challenge in Semi-Supervised Temporal Action Localization (SS-TAL). Existing methods often filter pseudo labels based on strict conditions, but they typically assess classification and…

计算机视觉与模式识别 · 计算机科学 2024-07-26 Feixiang Zhou , Bryan Williams , Hossein Rahmani

Weakly-supervised object localization (WSOL) has gained popularity over the last years for its promise to train localization models with only image-level labels. Since the seminal WSOL work of class activation mapping (CAM), the field has…

计算机视觉与模式识别 · 计算机科学 2020-04-02 Junsuk Choe , Seong Joon Oh , Seungho Lee , Sanghyuk Chun , Zeynep Akata , Hyunjung Shim

We introduce count-guided weakly supervised localization (C-WSL), an approach that uses per-class object count as a new form of supervision to improve weakly supervised localization (WSL). C-WSL uses a simple count-based region selection…

计算机视觉与模式识别 · 计算机科学 2018-07-26 Mingfei Gao , Ang Li , Ruichi Yu , Vlad I. Morariu , Larry S. Davis

Weakly-supervised object localization (WSOL) has gained popularity over the last years for its promise to train localization models with only image-level labels. Since the seminal WSOL work of class activation mapping (CAM), the field has…

计算机视觉与模式识别 · 计算机科学 2021-12-08 Junsuk Choe , Seong Joon Oh , Sanghyuk Chun , Seungho Lee , Zeynep Akata , Hyunjung Shim

Weakly supervised object localization (WSOL) aims at predicting object locations in an image using only image-level category labels. Common challenges that image classification models encounter when localizing objects are, (a) they tend to…

计算机视觉与模式识别 · 计算机科学 2022-04-15 Saurav Gupta , Sourav Lakhotia , Abhay Rawat , Rahul Tallamraju