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We introduce a novel deep learning based group activity recognition approach called the Pose Only Group Activity Recognition System (POGARS), designed to use only tracked poses of people to predict the performed group activity. In contrast…

Computer Vision and Pattern Recognition · Computer Science 2024-01-09 Haritha Thilakarathne , Aiden Nibali , Zhen He , Stuart Morgan

Group activity recognition is a hot topic in computer vision. Recognizing activities through group relationships plays a vital role in group activity recognition. It holds practical implications in various scenarios, such as video analysis,…

Computer Vision and Pattern Recognition · Computer Science 2023-07-26 Chuanchuan Wang , Ahmad Sufril Azlan Mohamed

Object re-identification is of increasing importance in visual surveillance. Most existing works focus on re-identify individual from multiple cameras while the application of group re-identification (Re-ID) is rarely discussed. We redefine…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Hao Xiao

This paper presents a deep neural-network-based hierarchical graphical model for individual and group activity recognition in surveillance scenes. Deep networks are used to recognize the actions of individual people in a scene. Next, a…

Computer Vision and Pattern Recognition · Computer Science 2015-06-16 Zhiwei Deng , Mengyao Zhai , Lei Chen , Yuhao Liu , Srikanth Muralidharan , Mehrsan Javan Roshtkhari , Greg Mori

Group activity recognition is the task of understanding the activity conducted by a group of people as a whole in a multi-person video. Existing models for this task are often impractical in that they demand ground-truth bounding box labels…

Computer Vision and Pattern Recognition · Computer Science 2022-04-06 Dongkeun Kim , Jinsung Lee , Minsu Cho , Suha Kwak

Current datasets for video-based person re-identification (re-ID) do not include structural knowledge in form of human pose annotations for the persons of interest. Nonetheless, pose information is very helpful to disentangle useful feature…

Computer Vision and Pattern Recognition · Computer Science 2020-11-13 Andreas Doering , Di Chen , Shanshan Zhang , Bernt Schiele , Juergen Gall

Designing a scheme that can achieve a good performance in predicting single person activities and group activities is a challenging task. In this paper, we propose a novel robust and efficient human activity recognition scheme called ReHAR,…

Computer Vision and Pattern Recognition · Computer Science 2018-02-28 Xin Li , Mooi Choo Chuah

Human action recognition (HAR) in videos is a fundamental research topic in computer vision. It consists mainly in understanding actions performed by humans based on a sequence of visual observations. In recent years, HAR have witnessed…

Computer Vision and Pattern Recognition · Computer Science 2020-10-30 Soufiane Lamghari , Guillaume-Alexandre Bilodeau , Nicolas Saunier

The task of re-identifying groups of people underdifferent camera views is an important yet less-studied problem.Group re-identification (Re-ID) is a very challenging task sinceit is not only adversely affected by common issues in…

Computer Vision and Pattern Recognition · Computer Science 2019-05-28 Weiyao Lin , Yuxi Li , Hao Xiao , John See , Junni Zou , Hongkai Xiong , Jingdong Wang , Tao Mei

This paper presents a novel approach for automatic recognition of human activities for video surveillance applications. We propose to represent an activity by a combination of category components, and demonstrate that this approach offers…

Computer Vision and Pattern Recognition · Computer Science 2015-03-03 Weiyao Lin , Ming-Ting Sun , Radha Poovendran , Zhengyou Zhang

Human pose analysis has garnered significant attention within both the research community and practical applications, owing to its expanding array of uses, including gaming, video surveillance, sports performance analysis, and…

Computer Vision and Pattern Recognition · Computer Science 2023-10-23 Lijuan Zhou , Xiang Meng , Zhihuan Liu , Mengqi Wu , Zhimin Gao , Pichao Wang

Recognizing every person's action in a crowded and cluttered environment is a challenging task. In this paper, we propose a real-time action recognition method, Action4D, which gives reliable and accurate results in the real-world settings.…

Computer Vision and Pattern Recognition · Computer Science 2018-06-08 Quanzeng You , Hao Jiang

We propose DeepGRU, a novel end-to-end deep network model informed by recent developments in deep learning for gesture and action recognition, that is streamlined and device-agnostic. DeepGRU, which uses only raw skeleton, pose or vector…

Computer Vision and Pattern Recognition · Computer Science 2019-10-11 Mehran Maghoumi , Joseph J. LaViola

Deep learning models have achieved state-of-the- art performance in recognizing human activities, but often rely on utilizing background cues present in typical computer vision datasets that predominantly have a stationary camera. If these…

Robotics · Computer Science 2017-09-20 Fahimeh Rezazadegan , Sareh Shirazi , Ben Upcroft , Michael Milford

In this work we study the benefits of using tracking and 3D poses for action recognition. To achieve this, we take the Lagrangian view on analysing actions over a trajectory of human motion rather than at a fixed point in space. Taking this…

Computer Vision and Pattern Recognition · Computer Science 2023-08-08 Jathushan Rajasegaran , Georgios Pavlakos , Angjoo Kanazawa , Christoph Feichtenhofer , Jitendra Malik

Group activity detection in multi-person scenes is challenging due to complex human interactions, occlusions, and variations in appearance over time. This work presents a computer vision based framework for group activity recognition and…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Narthana Sivalingam , Santhirarajah Sivasthigan , Thamayanthi Mahendranathan , G. M. R. I. Godaliyadda , M. P. B. Ekanayake , H. M. V. R. Herath

Activity recognition is the ability to identify and recognize the action or goals of the agent. The agent can be any object or entity that performs action that has end goals. The agents can be a single agent performing the action or group…

Machine Learning · Computer Science 2019-06-19 Ashwin Geet D'Sa , B. G. Prasad

This paper presents a comprehensive review on regression-based method for human pose estimation. The problem of human pose estimation has been intensively studied and enabled many application from entertainment to training. Traditional…

Computer Vision and Pattern Recognition · Computer Science 2017-09-08 Wenye He

Recognizing group activities is challenging due to the difficulties in isolating individual entities, finding the respective roles played by the individuals and representing the complex interactions among the participants. Individual…

Computer Vision and Pattern Recognition · Computer Science 2015-03-20 Qiang Qiu , Rama Chellappa

Repetitive counting (RepCount) is critical in various applications, such as fitness tracking and rehabilitation. Previous methods have relied on the estimation of red-green-and-blue (RGB) frames and body pose landmarks to identify the…

Computer Vision and Pattern Recognition · Computer Science 2024-02-27 Haodong Chen , Ming C. Leu , Md Moniruzzaman , Zhaozheng Yin , Solmaz Hajmohammadi
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