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Related papers: Deep Motion Prior for Weakly-Supervised Temporal A…

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Traffic videos inherently differ from generic videos in their stationary camera setup, thus providing a strong motion prior where objects often move in a specific direction over a short time interval. Existing works predominantly employ…

Computer Vision and Pattern Recognition · Computer Science 2023-11-17 Lihao Liu , Yanqi Cheng , Dongdong Chen , Jing He , Pietro Liò , Carola-Bibiane Schönlieb , Angelica I Aviles-Rivero

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

We consider the task of semi-supervised video object segmentation (VOS). Our approach mitigates shortcomings in previous VOS work by addressing detail preservation and temporal consistency using visual warping. In contrast to prior work…

Computer Vision and Pattern Recognition · Computer Science 2021-11-23 Julia Gong , F. Christopher Holsinger , Serena Yeung

Our goal is to enable machine learning systems to be trained interactively. This requires models that perform well and train quickly, without large amounts of hand-labeled data. We take a step forward in this direction by borrowing from…

Weakly Labelled learning has garnered lot of attention in recent years due to its potential to scale Sound Event Detection (SED) and is formulated as Multiple Instance Learning (MIL) problem. This paper proposes a Multi-Task Learning (MTL)…

Audio and Speech Processing · Electrical Eng. & Systems 2020-11-02 Soham Deshmukh , Bhiksha Raj , Rita Singh

Purpose: Real-time surgical tool tracking is a core component of the future intelligent operating room (OR), because it is highly instrumental to analyze and understand the surgical activities. Current methods for surgical tool tracking in…

Computer Vision and Pattern Recognition · Computer Science 2022-04-04 Chinedu Innocent Nwoye , Didier Mutter , Jacques Marescaux , Nicolas Padoy

Weakly supervised semantic segmentation (WSSS) approaches typically rely on class activation maps (CAMs) for initial seed generation, which often fail to capture global context due to limited supervision from image-level labels. To address…

Computer Vision and Pattern Recognition · Computer Science 2024-09-25 Soojin Jang , Jungmin Yun , Junehyoung Kwon , Eunju Lee , Youngbin Kim

We study weakly-supervised video object grounding: given a video segment and a corresponding descriptive sentence, the goal is to localize objects that are mentioned from the sentence in the video. During training, no object bounding boxes…

Computer Vision and Pattern Recognition · Computer Science 2018-07-23 Luowei Zhou , Nathan Louis , Jason J. Corso

Weakly-supervised action segmentation is a task of learning to partition a long video into several action segments, where training videos are only accompanied by transcripts (ordered list of actions). Most of existing methods need to infer…

Computer Vision and Pattern Recognition · Computer Science 2024-03-29 Angchi Xu , Wei-Shi Zheng

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

Detecting temporal extents of human actions in videos is a challenging computer vision problem that requires detailed manual supervision including frame-level labels. This expensive annotation process limits deploying action detectors to a…

Computer Vision and Pattern Recognition · Computer Science 2020-01-07 Basura Fernando , Cheston Tan Yin Chet , Hakan Bilen

We present a semi-supervised learning approach to the temporal action segmentation task. The goal of the task is to temporally detect and segment actions in long, untrimmed procedural videos, where only a small set of videos are densely…

Computer Vision and Pattern Recognition · Computer Science 2022-07-22 Guodong Ding , Angela Yao

Weakly supervised temporal action localization is a newly emerging yet widely studied topic in recent years. The existing methods can be categorized into two localization-by-classification pipelines, i.e., the pre-classification pipeline…

Computer Vision and Pattern Recognition · Computer Science 2020-10-07 Tao Zhao , Junwei Han , Le Yang , Dingwen Zhang

Significant performance improvement has been achieved for fully-supervised video salient object detection with the pixel-wise labeled training datasets, which are time-consuming and expensive to obtain. To relieve the burden of data…

Computer Vision and Pattern Recognition · Computer Science 2021-04-07 Wangbo Zhao , Jing Zhang , Long Li , Nick Barnes , Nian Liu , Junwei Han

The goal of visual answering localization (VAL) in the video is to obtain a relevant and concise time clip from a video as the answer to the given natural language question. Early methods are based on the interaction modelling between video…

Computer Vision and Pattern Recognition · Computer Science 2022-10-31 Yixuan Weng , Bin Li

The application of Contrastive Language-Image Pre-training (CLIP) in Weakly Supervised Semantic Segmentation (WSSS) research powerful cross-modal semantic understanding capabilities. Existing methods attempt to optimize input text prompts…

Computer Vision and Pattern Recognition · Computer Science 2024-12-30 Zhongxing Xu , Feilong Tang , Zhe Chen , Yingxue Su , Zhiyi Zhao , Ge Zhang , Jionglong Su , Zongyuan Ge

Autism Spectrum Disorder (ASD) presents significant challenges in early diagnosis and intervention, impacting children and their families. With prevalence rates rising, there is a critical need for accessible and efficient screening tools.…

Computer Vision and Pattern Recognition · Computer Science 2024-04-10 Halil Ismail Helvaci , Sen-ching Samson Cheung , Chen-Nee Chuah , Sally Ozonoff

Humans perceive actions through key transitions that structure actions across multiple abstraction levels, whereas machines, relying on visual features, tend to over-segment. This highlights the difficulty of enabling hierarchical reasoning…

Computer Vision and Pattern Recognition · Computer Science 2026-03-02 Junxian Huang , Ruichu Cai , Hao Zhu , Juntao Fang , Boyan Xu , Weilin Chen , Zijian Li , Shenghua Gao

Learning to localize actions in long, cluttered, and untrimmed videos is a hard task, that in the literature has typically been addressed assuming the availability of large amounts of annotated training samples for each class -- either in a…

Computer Vision and Pattern Recognition · Computer Science 2021-09-24 Ting-Ting Xie , Christos Tzelepis , Fan Fu , Ioannis Patras

Weakly Supervised Object Localization (WSOL) methods only require image level labels as opposed to expensive bounding box annotations required by fully supervised algorithms. We study the problem of learning localization model on target…

Computer Vision and Pattern Recognition · Computer Science 2020-07-21 Amir Rahimi , Amirreza Shaban , Thalaiyasingam Ajanthan , Richard Hartley , Byron Boots