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Combining skeleton structure with graph convolutional networks has achieved remarkable performance in human action recognition. Since current research focuses on designing basic graph for representing skeleton data, these embedding features…

Computer Vision and Pattern Recognition · Computer Science 2022-10-12 Dong Yang , Monica Mengqi Li , Hong Fu , Jicong Fan , Zhao Zhang , Howard Leung

Action recognition is a key algorithmic part of emerging on-the-edge smart video surveillance and security systems. Skeleton-based action recognition is an attractive approach which, instead of using RGB pixel data, relies on human pose…

Computer Vision and Pattern Recognition · Computer Science 2022-01-19 Justin Sanchez , Christopher Neff , Hamed Tabkhi

Skeleton-based action recognition has attracted considerable attention in computer vision since skeleton data is more robust to the dynamic circumstance and complicated background than other modalities. Recently, many researchers have used…

Computer Vision and Pattern Recognition · Computer Science 2020-03-18 Hao Yang , Dan Yan , Li Zhang , Dong Li , YunDa Sun , ShaoDi You , Stephen J. Maybank

Important advances have been made using convolutional neural network (CNN) approaches to solve complicated problems in areas that rely on grid structured data such as image processing and object classification. Recently, research on graph…

Machine Learning · Statistics 2018-08-24 Matthew Baron

Graph convolutional networks (GCNs), which generalize CNNs to more generic non-Euclidean structures, have achieved remarkable performance for skeleton-based action recognition. However, there still exist several issues in the previous…

Computer Vision and Pattern Recognition · Computer Science 2020-12-02 Lei Shi , Yifan Zhang , Jian Cheng , Hanqing Lu

This paper proposes a new graph convolutional operator called central difference graph convolution (CDGC) for skeleton based action recognition. It is not only able to aggregate node information like a vanilla graph convolutional operation…

Computer Vision and Pattern Recognition · Computer Science 2021-11-16 Shuangyan Miao , Yonghong Hou , Zhimin Gao , Mingliang Xu , Wanqing Li

Current methods for skeleton-based human action recognition usually work with complete skeletons. However, in real scenarios, it is inevitable to capture incomplete or noisy skeletons, which could significantly deteriorate the performance…

Computer Vision and Pattern Recognition · Computer Science 2020-11-30 Yi-Fan Song , Zhang Zhang , Caifeng Shan , Liang Wang

Graph Convolutional Networks (GCNs) are state-of-the-art graph based representation learning models by iteratively stacking multiple layers of convolution aggregation operations and non-linear activation operations. Recently, in…

Information Retrieval · Computer Science 2020-01-29 Lei Chen , Le Wu , Richang Hong , Kun Zhang , Meng Wang

Current methods for skeleton-based human action recognition usually work with completely observed skeletons. However, in real scenarios, it is prone to capture incomplete and noisy skeletons, which will deteriorate the performance of…

Computer Vision and Pattern Recognition · Computer Science 2020-01-08 Yi-Fan Song , Zhang Zhang , Liang Wang

Graph convolutional networks have been widely used for skeleton-based action recognition due to their excellent modeling ability of non-Euclidean data. As the graph convolution is a local operation, it can only utilize the short-range joint…

Computer Vision and Pattern Recognition · Computer Science 2022-06-28 Zhan Chen , Sicheng Li , Bing Yang , Qinghan Li , Hong Liu

In recent years, action recognition has received much attention and wide application due to its important role in video understanding. Most of the researches on action recognition methods focused on improving the performance via various…

Computer Vision and Pattern Recognition · Computer Science 2025-02-04 Pengcheng Dong , Wenbo Wan , Huaxiang Zhang , Shuai Li , Sujuan Hou , Jiande Sun

Graph structural information such as topologies or connectivities provides valuable guidance for graph convolutional networks (GCNs) to learn nodes' representations. Existing GCN models that capture nodes' structural information weight in-…

Machine Learning · Computer Science 2021-07-22 Yunxiang Zhao , Jianzhong Qi , Qingwei Liu , Rui Zhang

In skeleton-based action recognition, graph convolutional networks (GCNs), which model the human body skeletons as spatiotemporal graphs, have achieved remarkable performance. However, in existing GCN-based methods, the topology of the…

Computer Vision and Pattern Recognition · Computer Science 2019-07-11 Lei Shi , Yifan Zhang , Jian Cheng , Hanqing Lu

Graph Convolution Network (GCN) has attracted significant attention and become the most popular method for learning graph representations. In recent years, many efforts have been focused on integrating GCN into the recommender tasks and…

Machine Learning · Computer Science 2020-07-14 Kang Liu , Feng Xue , Richang Hong

Dynamics of human body skeletons convey significant information for human action recognition. Conventional approaches for modeling skeletons usually rely on hand-crafted parts or traversal rules, thus resulting in limited expressive power…

Computer Vision and Pattern Recognition · Computer Science 2018-01-26 Sijie Yan , Yuanjun Xiong , Dahua Lin

Graph convolutional networks have been widely used in skeleton-based action recognition. However, existing approaches are limited in fine-grained action recognition due to the similarity of inter-class data. Moreover, the noisy data from…

Computer Vision and Pattern Recognition · Computer Science 2023-06-28 Sheng-Lan Liu , Yu-Ning Ding , Jin-Rong Zhang , Kai-Yuan Liu , Si-Fan Zhang , Fei-Long Wang , Gao Huang

Human Activity Recognition (HAR) is a field of study that focuses on identifying and classifying human activities. Skeleton-based Human Activity Recognition has received much attention in recent years, where Graph Convolutional Network…

Computer Vision and Pattern Recognition · Computer Science 2024-08-01 Jingyao Wang , Emmanuel Bergeret , Issam Falih

Graph Convolutional Networks (GCNs) demonstrate strong capability in modeling skeletal topology for action recognition, yet their dense floating-point computations incur high energy costs. Spiking Neural Networks (SNNs), characterized by…

Computer Vision and Pattern Recognition · Computer Science 2025-12-30 Naichuan Zheng , Xiahai Lun , Weiyi Li , Yuchen Du

Spectral graph convolutional neural networks (CNNs) require approximation to the convolution to alleviate the computational complexity, resulting in performance loss. This paper proposes the topology adaptive graph convolutional network…

Machine Learning · Computer Science 2018-02-13 Jian Du , Shanghang Zhang , Guanhang Wu , Jose M. F. Moura , Soummya Kar

How humans understand and recognize the actions of others is a complex neuroscientific problem that involves a combination of cognitive mechanisms and neural networks. Research has shown that humans have brain areas that recognize actions…

Computer Vision and Pattern Recognition · Computer Science 2023-05-23 Haojun Xu , Yan Gao , Zheng Hui , Jie Li , Xinbo Gao