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Predicting other people's action is key to successful social interactions, enabling us to adjust our own behavior to the consequence of the others' future actions. Studies on action recognition have focused on the importance of individual…

Human action recognition has been an important topic in computer vision due to its many applications such as video surveillance, human machine interaction and video retrieval. One core problem behind these applications is automatically…

Computer Vision and Pattern Recognition · Computer Science 2015-01-27 Guangchun Cheng , Yiwen Wan , Abdullah N. Saudagar , Kamesh Namuduri , Bill P. Buckles

Humans exhibit a remarkable capacity for anticipating the actions of others and planning their own actions accordingly. In this study, we strive to replicate this ability by addressing the social motion prediction problem. We introduce a…

Computer Vision and Pattern Recognition · Computer Science 2023-11-09 Wentao Zhu , Jason Qin , Yuke Lou , Hang Ye , Xiaoxuan Ma , Hai Ci , Yizhou Wang

The optical flow of humans is well known to be useful for the analysis of human action. Given this, we devise an optical flow algorithm specifically for human motion and show that it is superior to generic flow methods. Designing a method…

Computer Vision and Pattern Recognition · Computer Science 2018-07-24 Anurag Ranjan , Javier Romero , Michael J. Black

The objective of this paper is to evaluate "human action recognition without human". Motion representation is frequently discussed in human action recognition. We have examined several sophisticated options, such as dense trajectories (DT)…

Computer Vision and Pattern Recognition · Computer Science 2024-10-25 Hirokatsu Kataoka , Kensho Hara , Yutaka Satoh

Large vision and language models learned directly through image-text associations often lack detailed visual substantiation, whereas image segmentation tasks are treated separately from recognition, supervisedly learned without…

Computer Vision and Pattern Recognition · Computer Science 2024-05-06 Tsung-Wei Ke , Sangwoo Mo , Stella X. Yu

Learning to coordinate actions among agents is essential in complicated multi-agent systems. Prior works are constrained mainly by the assumption that all agents act simultaneously, and asynchronous action coordination between agents is…

Multiagent Systems · Computer Science 2022-02-25 Jingqing Ruan , Linghui Meng , Xuantang Xiong , Dengpeng Xing , Bo Xu

The scarcity of high quality actions video data is a bottleneck in the research and application of action recognition. Although significant effort has been made in this area, there still exist gaps in the range of available data types a…

Computer Vision and Pattern Recognition · Computer Science 2023-10-03 Shuo Wang , Amiya Ranjan , Lawrence Jiang

Activity recognition from sensor data deals with various challenges, such as overlapping activities, activity labeling, and activity detection. Although each challenge in the field of recognition has great importance, the most important one…

Machine Learning · Computer Science 2019-03-13 Parviz Asghari , Ehsan Nazerfard

This paper proposes a novel Subdivision-Fusion Model (SFM) to recognize human actions. In most action recognition tasks, overlapping feature distribution is a common problem leading to overfitting. In the subdivision stage of the proposed…

Computer Vision and Pattern Recognition · Computer Science 2015-08-19 Hao Zongbo , Lu Linlin , Zhang Qianni , Wu Jie , Izquierdo Ebroul , Yang Juanyu , Zhao Jun

Activity recognition using built-in sensors in smart and wearable devices provides great opportunities to understand and detect human behavior in the wild and gives a more holistic view of individuals' health and well being. Numerous…

Signal Processing · Electrical Eng. & Systems 2020-11-16 Mehrdad Fazli , Kamran Kowsari , Erfaneh Gharavi , Laura Barnes , Afsaneh Doryab

Deep neural networks have achieved great success for video analysis and understanding. However, designing a high-performance neural architecture requires substantial efforts and expertise. In this paper, we make the first attempt to let…

Computer Vision and Pattern Recognition · Computer Science 2019-07-11 Wei Peng , Xiaopeng Hong , Guoying Zhao

Analyzing videos of human actions involves understanding the temporal relationships among video frames. State-of-the-art action recognition approaches rely on traditional optical flow estimation methods to pre-compute motion information for…

Computer Vision and Pattern Recognition · Computer Science 2018-10-31 Yi Zhu , Zhenzhong Lan , Shawn Newsam , Alexander G. Hauptmann

Human-centred systems require an understanding of human actions in the physical world. Temporally extended sequences of actions are intentional and structured, yet existing methods for recognising what actions are performed often do not…

Artificial Intelligence · Computer Science 2026-04-21 Rimvydas Rubavicius , Manisha Dubey , N. Siddharth , Subramanian Ramamoorthy

Human action recognition still exists many challenging problems such as different viewpoints, occlusion, lighting conditions, human body size and the speed of action execution, although it has been widely used in different areas. To tackle…

Computer Vision and Pattern Recognition · Computer Science 2024-06-10 Lei Wang

The visual recognition of transitive actions comprising human-object interactions is a key component for artificial systems operating in natural environments. This challenging task requires jointly the recognition of articulated body…

Neural and Evolutionary Computing · Computer Science 2018-03-05 Luiza Mici , German I. Parisi , Stefan Wermter

Humans easily recognize object parts and their hierarchical structure by watching how they move; they can then predict how each part moves in the future. In this paper, we propose a novel formulation that simultaneously learns a…

Computer Vision and Pattern Recognition · Computer Science 2019-03-14 Zhenjia Xu , Zhijian Liu , Chen Sun , Kevin Murphy , William T. Freeman , Joshua B. Tenenbaum , Jiajun Wu

Motivation: Recognizing human actions in a video is a challenging task which has applications in various fields. Previous works in this area have either used images from a 2D or 3D camera. Few have used the idea that human actions can be…

Computer Vision and Pattern Recognition · Computer Science 2016-12-21 Adhavan Jayabalan , Harish Karunakaran , Shravan Murlidharan , Tesia Shizume

Network structure evolves with time in the real world, and the discovery of changing communities in dynamic networks is an important research topic that poses challenging tasks. Most existing methods assume that no significant change in the…

Neural and Evolutionary Computing · Computer Science 2022-11-29 Huixin Ma , Kai Wu , Handing Wang , Jing Liu

This paper presents a new method to describe spatio-temporal relations between objects and hands, to recognize both interactions and activities within video demonstrations of manual tasks. The approach exploits Scene Graphs to extract key…

Computer Vision and Pattern Recognition · Computer Science 2023-07-10 Elena Merlo , Marta Lagomarsino , Edoardo Lamon , Arash Ajoudani