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It's common for current methods in skeleton-based action recognition to mainly consider capturing long-term temporal dependencies as skeleton sequences are typically long (>128 frames), which forms a challenging problem for previous…

Computer Vision and Pattern Recognition · Computer Science 2022-09-14 Lianyu Hu , Shenglan Liu , Wei Feng

3D skeleton-based action recognition and motion prediction are two essential problems of human activity understanding. In many previous works: 1) they studied two tasks separately, neglecting internal correlations; 2) they did not capture…

Computer Vision and Pattern Recognition · Computer Science 2019-10-08 Maosen Li , Siheng Chen , Xu Chen , Ya Zhang , Yanfeng Wang , Qi Tian

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 (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

Skeleton-based human action recognition has achieved remarkable progress in recent years. However, most existing GCN-based methods rely on short-range motion topologies, which not only struggle to capture long-range joint dependencies and…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Ruosi Wang , Fangwei Zuo , Lei Li , Zhaoqiang Xia

Sign language is commonly used by deaf or mute people to communicate but requires extensive effort to master. It is usually performed with the fast yet delicate movement of hand gestures, body posture, and even facial expressions. Current…

Computer Vision and Pattern Recognition · Computer Science 2021-10-13 Songyao Jiang , Bin Sun , Lichen Wang , Yue Bai , Kunpeng Li , Yun Fu

Recently, there has been a remarkable increase in the interest towards skeleton-based action recognition within the research community, owing to its various advantageous features, including computational efficiency, representative features,…

Computer Vision and Pattern Recognition · Computer Science 2023-02-01 Ayman Ali , Ekkasit Pinyoanuntapong , Pu Wang , Mohsen Dorodchi

Graph convolution networks (GCN) have been widely used in skeleton-based action recognition. We note that existing GCN-based approaches primarily rely on prescribed graphical structures (ie., a manually defined topology of skeleton joints),…

Computer Vision and Pattern Recognition · Computer Science 2022-10-13 Haodong Duan , Jiaqi Wang , Kai Chen , Dahua Lin

In the last years, the computer vision research community has studied on how to model temporal dynamics in videos to employ 3D human action recognition. To that end, two main baseline approaches have been researched: (i) Recurrent Neural…

Computer Vision and Pattern Recognition · Computer Science 2019-09-13 Carlos Caetano , François Brémond , William Robson Schwartz

Skeleton-based gesture recognition methods have achieved high success using Graph Convolutional Network (GCN). In addition, context-dependent adaptive topology as a neighborhood vertex information and attention mechanism leverages a model…

Computer Vision and Pattern Recognition · Computer Science 2024-04-04 Ikuo Nakamura

Skeleton-based action recognition has recently attracted a lot of attention. Researchers are coming up with new approaches for extracting spatio-temporal relations and making considerable progress on large-scale skeleton-based datasets.…

Computer Vision and Pattern Recognition · Computer Science 2019-12-19 Sangwoo Cho , Muhammad Hasan Maqbool , Fei Liu , Hassan Foroosh

Recently, skeleton based action recognition gains more popularity due to cost-effective depth sensors coupled with real-time skeleton estimation algorithms. Traditional approaches based on handcrafted features are limited to represent the…

Computer Vision and Pattern Recognition · Computer Science 2017-04-13 Hongsong Wang , Liang Wang

We present a module that extends the temporal graph of a graph convolutional network (GCN) for action recognition with a sequence of skeletons. Existing methods attempt to represent a more appropriate spatial graph on an intra-frame, but…

Computer Vision and Pattern Recognition · Computer Science 2020-10-20 Yuya Obinata , Takuma Yamamoto

Micro-Actions (MAs) are an important form of non-verbal communication in social interactions, with potential applications in human emotional analysis. However, existing methods in Micro-Action Recognition often overlook the inherent subtle…

Computer Vision and Pattern Recognition · Computer Science 2025-12-01 Jihao Gu , Kun Li , Fei Wang , Yanyan Wei , Zhiliang Wu , Hehe Fan , Meng Wang

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

We propose novel dynamic multiscale graph neural networks (DMGNN) to predict 3D skeleton-based human motions. The core idea of DMGNN is to use a multiscale graph to comprehensively model the internal relations of a human body for motion…

Computer Vision and Pattern Recognition · Computer Science 2020-03-20 Maosen Li , Siheng Chen , Yangheng Zhao , Ya Zhang , Yanfeng Wang , Qi Tian

Human skeleton joints are popular for action analysis since they can be easily extracted from videos to discard background noises. However, current skeleton representations do not fully benefit from machine learning with CNNs. We propose…

Computer Vision and Pattern Recognition · Computer Science 2018-08-06 Jian Liu , Naveed Akhtar , Ajmal Mian

Human actions comprise of joint motion of articulated body parts or `gestures'. Human skeleton is intuitively represented as a sparse graph with joints as nodes and natural connections between them as edges. Graph convolutional networks…

Computer Vision and Pattern Recognition · Computer Science 2018-09-14 Kalpit Thakkar , P J Narayanan

Recent methods based on 3D skeleton data have achieved outstanding performance due to its conciseness, robustness, and view-independent representation. With the development of deep learning, Convolutional Neural Networks (CNN) and Long…

Computer Vision and Pattern Recognition · Computer Science 2017-07-11 Chuankun Li , Pichao Wang , Shuang Wang , Yonghong Hou , Wanqing Li

Skeleton-based action recognition has gained significant attention for its ability to efficiently represent spatiotemporal information in a lightweight format. Most existing approaches use graph-based models to process skeleton sequences,…

Computer Vision and Pattern Recognition · Computer Science 2025-02-25 Jushang Qiu , Lei Wang