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Related papers: Learning to Align Sequential Actions in the Wild

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Temporal alignment is an inherent task in most applications dealing with videos: action recognition, motion transfer, virtual trainers, rehabilitation, etc. In this paper we dive into the understanding of this task from a geometric point of…

Differential Geometry · Mathematics 2023-03-28 Alice Barbara Tumpach , Peter Kán

We propose a self-supervised learning approach for videos that learns representations of both the RGB frames and the accompanying audio without human supervision. In contrast to images that capture the static scene appearance, videos also…

Computer Vision and Pattern Recognition · Computer Science 2023-02-16 Simon Jenni , Alexander Black , John Collomosse

In recent years, creative content generations like style transfer and neural photo editing have attracted more and more attention. Among these, cartoonization of real-world scenes has promising applications in entertainment and industry.…

Computer Vision and Pattern Recognition · Computer Science 2022-04-05 Zhenhuan Liu , Liang Li , Huajie Jiang , Xin Jin , Dandan Tu , Shuhui Wang , Zheng-Jun Zha

Real-time video analysis remains a challenging problem in computer vision, requiring efficient processing of both spatial and temporal information while maintaining computational efficiency. Existing approaches often struggle to balance…

Computer Vision and Pattern Recognition · Computer Science 2025-07-31 Shahla John

Achieving high-performance in multi-object tracking algorithms heavily relies on modeling spatio-temporal relationships during the data association stage. Mainstream approaches encompass rule-based and deep learning-based methods for…

Computer Vision and Pattern Recognition · Computer Science 2024-04-18 Zhonglin Liu , Shujie Chen , Jianfeng Dong , Xun Wang , Di Zhou

Learning to recognize actions from only a handful of labeled videos is a challenging problem due to the scarcity of tediously collected activity labels. We approach this problem by learning a two-pathway temporal contrastive model using…

Computer Vision and Pattern Recognition · Computer Science 2021-03-30 Ankit Singh , Omprakash Chakraborty , Ashutosh Varshney , Rameswar Panda , Rogerio Feris , Kate Saenko , Abir Das

Multiple supervised learning scenarios are composed by a sequence of classification tasks. For instance, multi-task learning and continual learning aim to learn a sequence of tasks that is either fixed or grows over time. Existing…

Machine Learning · Statistics 2025-01-10 Verónica Álvarez , Santiago Mazuelas , Jose A. Lozano

The ability to sequence unordered events is an essential skill to comprehend and reason about real world task procedures, which often requires thorough understanding of temporal common sense and multimodal information, as these procedures…

Computation and Language · Computer Science 2024-02-22 Te-Lin Wu , Alex Spangher , Pegah Alipoormolabashi , Marjorie Freedman , Ralph Weischedel , Nanyun Peng

The task of temporally detecting and segmenting actions in untrimmed videos has seen an increased attention recently. One problem in this context arises from the need to define and label action boundaries to create annotations for training…

Computer Vision and Pattern Recognition · Computer Science 2019-04-09 Anna Kukleva , Hilde Kuehne , Fadime Sener , Juergen Gall

Multimodal alignment constructs a joint latent vector space where modalities representing the same concept map to neighboring latent vectors. We formulate this as an inverse problem and show that, under certain conditions, paired data from…

Machine Learning · Computer Science 2025-06-10 Abhi Kamboj , Minh N. Do

Spatially dense self-supervised learning is a rapidly growing problem domain with promising applications for unsupervised segmentation and pretraining for dense downstream tasks. Despite the abundance of temporal data in the form of videos,…

Computer Vision and Pattern Recognition · Computer Science 2023-08-24 Mohammadreza Salehi , Efstratios Gavves , Cees G. M. Snoek , Yuki M. Asano

Attempt to fully discover the temporal diversity and chronological characteristics for self-supervised video representation learning, this work takes advantage of the temporal dependencies within videos and further proposes a novel…

Computer Vision and Pattern Recognition · Computer Science 2021-03-18 Yang Liu , Keze Wang , Haoyuan Lan , Liang Lin

Humans can easily reason about the sequence of high level actions needed to complete tasks, but it is particularly difficult to instil this ability in robots trained from relatively few examples. This work considers the task of neural…

Robotics · Computer Science 2021-02-08 Michael Burke , Kartic Subr , Subramanian Ramamoorthy

Actions are more than just movements and trajectories: we cook to eat and we hold a cup to drink from it. A thorough understanding of videos requires going beyond appearance modeling and necessitates reasoning about the sequence of…

Computer Vision and Pattern Recognition · Computer Science 2017-07-25 Gunnar A. Sigurdsson , Santosh Divvala , Ali Farhadi , Abhinav Gupta

This work tackles Weakly Supervised Anomaly detection, in which a predictor is allowed to learn not only from normal examples but also from a few labeled anomalies made available during training. In particular, we deal with the localization…

Computer Vision and Pattern Recognition · Computer Science 2022-08-11 Aniello Panariello , Angelo Porrello , Simone Calderara , Rita Cucchiara

Recurrent neural network models with an attention mechanism have proven to be extremely effective on a wide variety of sequence-to-sequence problems. However, the fact that soft attention mechanisms perform a pass over the entire input…

Machine Learning · Computer Science 2017-07-03 Colin Raffel , Minh-Thang Luong , Peter J. Liu , Ron J. Weiss , Douglas Eck

Deep convolutional networks have achieved great success for visual recognition in still images. However, for action recognition in videos, the advantage over traditional methods is not so evident. This paper aims to discover the principles…

Computer Vision and Pattern Recognition · Computer Science 2016-08-03 Limin Wang , Yuanjun Xiong , Zhe Wang , Yu Qiao , Dahua Lin , Xiaoou Tang , Luc Van Gool

Semi-Supervised Learning can be more beneficial for the video domain compared to images because of its higher annotation cost and dimensionality. Besides, any video understanding task requires reasoning over both spatial and temporal…

Computer Vision and Pattern Recognition · Computer Science 2023-03-30 Ishan Rajendrakumar Dave , Mamshad Nayeem Rizve , Chen Chen , Mubarak Shah

One central question for video action recognition is how to model motion. In this paper, we present hierarchical contrastive motion learning, a new self-supervised learning framework to extract effective motion representations from raw…

Computer Vision and Pattern Recognition · Computer Science 2022-01-19 Xitong Yang , Xiaodong Yang , Sifei Liu , Deqing Sun , Larry Davis , Jan Kautz

In this work we address the challenging problem of unsupervised learning from videos. Existing methods utilize the spatio-temporal continuity in contiguous video frames as regularization for the learning process. Typically, this temporal…

Computer Vision and Pattern Recognition · Computer Science 2018-10-12 Carolina Redondo-Cabrera , Roberto J. López-Sastre