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Zero-shot skeleton action recognition is a non-trivial task that requires robust unseen generalization with prior knowledge from only seen classes and shared semantics. Existing methods typically build the skeleton-semantics interactions by…

Computer Vision and Pattern Recognition · Computer Science 2024-11-27 Yang Chen , Jingcai Guo , Song Guo , Dacheng Tao

Recent advances in large-scale pretrained vision models have demonstrated impressive capabilities across a wide range of downstream tasks, including cross-modal and multi-modal scenarios. However, their direct application to 3D human…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Siyuan Yang , Jun Liu , Hao Cheng , Chong Wang , Shijian Lu , Hedvig Kjellstrom , Weisi Lin , Alex C. Kot

In this article, we present a survey of recent advances in passive human behaviour recognition in indoor areas using the channel state information (CSI) of commercial WiFi systems. Movement of human body causes a change in the wireless…

Artificial Intelligence · Computer Science 2017-08-25 Siamak Yousefi , Hirokazu Narui , Sankalp Dayal , Stefano Ermon , Shahrokh Valaee

Point cloud registration, a fundamental task in 3D computer vision, has remained largely unexplored in cross-source point clouds and unstructured scenes. The primary challenges arise from noise, outliers, and variations in scale and…

Computer Vision and Pattern Recognition · Computer Science 2024-03-05 Kezheng Xiong , Maoji Zheng , Qingshan Xu , Chenglu Wen , Siqi Shen , Cheng Wang

Existing 3D skeleton-based action recognition approaches reach impressive performance by encoding handcrafted action features to image format and decoding by CNNs. However, such methods are limited in two ways: a) the handcrafted action…

Computer Vision and Pattern Recognition · Computer Science 2022-08-09 Shannan Guan , Haiyan Lu , Linchao Zhu , Gengfa Fang

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

Human skeleton, as a compact representation of human action, has received increasing attention in recent years. Many skeleton-based action recognition methods adopt graph convolutional networks (GCN) to extract features on top of human…

Computer Vision and Pattern Recognition · Computer Science 2022-04-05 Haodong Duan , Yue Zhao , Kai Chen , Dahua Lin , Bo Dai

3D skeleton-based human action recognition has emerged as a powerful alternative to traditional RGB and depth-based approaches, offering robustness to environmental variations, computational efficiency, and enhanced privacy. Despite…

Computer Vision and Pattern Recognition · Computer Science 2025-09-16 Yang Liu , Jiyao Yang , Madhawa Perera , Pan Ji , Dongwoo Kim , Min Xu , Tianyang Wang , Saeed Anwar , Tom Gedeon , Lei Wang , Zhenyue Qin

This paper extends the Spatial-Temporal Graph Convolutional Network (ST-GCN) for skeleton-based action recognition by introducing two novel modules, namely, the Graph Vertex Feature Encoder (GVFE) and the Dilated Hierarchical Temporal…

Computer Vision and Pattern Recognition · Computer Science 2019-12-23 Konstantinos Papadopoulos , Enjie Ghorbel , Djamila Aouada , Björn Ottersten

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

One-shot skeleton action recognition, which aims to learn a skeleton action recognition model with a single training sample, has attracted increasing interest due to the challenge of collecting and annotating large-scale skeleton action…

Computer Vision and Pattern Recognition · Computer Science 2024-02-07 Siyuan Yang , Jun Liu , Shijian Lu , Er Meng Hwa , Alex C. Kot

We introduce SkelFormer, a novel markerless motion capture pipeline for multi-view human pose and shape estimation. Our method first uses off-the-shelf 2D keypoint estimators, pre-trained on large-scale in-the-wild data, to obtain 3D joint…

Computer Vision and Pattern Recognition · Computer Science 2024-04-22 Vandad Davoodnia , Saeed Ghorbani , Alexandre Messier , Ali Etemad

We study the problem of human action recognition using motion capture (MoCap) sequences. Unlike existing techniques that take multiple manual steps to derive standardized skeleton representations as model input, we propose a novel…

Computer Vision and Pattern Recognition · Computer Science 2024-07-30 Xiaoyu Zhu , Po-Yao Huang , Junwei Liang , Celso M. de Melo , Alexander Hauptmann

Gait-based person re-identification (Re-ID) is valuable for safety-critical applications, and using only 3D skeleton data to extract discriminative gait features for person Re-ID is an emerging open topic. Existing methods either adopt…

Computer Vision and Pattern Recognition · Computer Science 2020-08-24 Haocong Rao , Siqi Wang , Xiping Hu , Mingkui Tan , Huang Da , Jun Cheng , Bin Hu

Human gait is one of important biometric characteristics for human identification at a distance. In practice, occlusion usually occurs and seriously affects accuracy of gait recognition. However, there is no available database to support…

Computer Vision and Pattern Recognition · Computer Science 2021-07-20 Na Li , Xinbo Zhao

This paper presents an image classification based approach for skeleton-based video action recognition problem. Firstly, A dataset independent translation-scale invariant image mapping method is proposed, which transformes the skeleton…

Computer Vision and Pattern Recognition · Computer Science 2017-06-14 Bo Li , Mingyi He , Xuelian Cheng , Yucheng Chen , Yuchao Dai

Gait recognition is a leading remote-based identification method, suitable for real-world surveillance and medical applications. Model-based gait recognition methods have been particularly recognized due to their scale and view-invariant…

Image and Video Processing · Electrical Eng. & Systems 2019-05-20 Nasrin Sadeghzadehyazdi , Tamal Batabyal , A. Glandon , Nibir K. Dhar , B. O. Familoni , K. M. Iftekharuddin , Scott T. Acton

We present a new deep learning approach for real-time 3D human action recognition from skeletal data and apply it to develop a vision-based intelligent surveillance system. Given a skeleton sequence, we propose to encode skeleton poses and…

Computer Vision and Pattern Recognition · Computer Science 2022-08-11 Huy Hieu Pham , Houssam Salmane , Louahdi Khoudour , Alain Crouzil , Pablo Zegers , Sergio A Velastin

Human motion detection is getting considerable attention in the field of Artificial Intelligence (AI) driven healthcare systems. Human motion can be used to provide remote healthcare solutions for vulnerable people by identifying particular…

Signal Processing · Electrical Eng. & Systems 2020-08-07 William Taylor , Syed Aziz Shah , Kia Dashtipour , Adnan Zahid , Qammer H. Abbasi , Muhammad Ali Imran

WiFi-based smart human sensing technology enabled by Channel State Information (CSI) has received great attention in recent years. However, CSI-based sensing systems suffer from performance degradation when deployed in different…

Computer Vision and Pattern Recognition · Computer Science 2022-12-20 Dazhuo Wang , Jianfei Yang , Wei Cui , Lihua Xie , Sumei Sun
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