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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

Node classification using Graph Neural Networks (GNNs) has been widely applied in various practical scenarios, such as predicting user interests and detecting communities in social networks. However, recent studies have shown that…

Machine Learning · Computer Science 2024-08-14 Shuqi He , Jun Zhuang , Ding Wang , Jun Song

Graph convolutional networks (GCNs) are the most commonly used methods for skeleton-based action recognition and have achieved remarkable performance. Generating adjacency matrices with semantically meaningful edges is particularly…

Computer Vision and Pattern Recognition · Computer Science 2023-07-20 Jungho Lee , Minhyeok Lee , Dogyoon Lee , Sangyoun Lee

Graph Convolutional Networks (GCNs) have been widely used to model the high-order dynamic dependencies for skeleton-based action recognition. Most existing approaches do not explicitly embed the high-order spatio-temporal importance to…

Computer Vision and Pattern Recognition · Computer Science 2022-02-07 Lipeng Ke , Kuan-Chuan Peng , Siwei Lyu

This paper presents a collaborative fall detection and response system integrating Wi-Fi sensing with robotic assistance. The proposed system leverages channel state information (CSI) disruptions caused by movements to detect falls in…

Robotics · Computer Science 2024-07-18 Yunwang Chen , Yaozhong Kang , Ziqi Zhao , Yue Hong , Lingxiao Meng , Max Q. -H. Meng

Falls in wet bathroom environments are a major safety risk for seniors living alone. Recent work has shown that mmWave-only, vibration-only, and existing multimodal schemes, such as vibration-triggered radar activation, early feature…

Computer Vision and Pattern Recognition · Computer Science 2026-04-06 Haitian Wang , Yiren Wang , Xinyu Wang , Sheldon Fung , Atif Mansoor

Video based fall detection accuracy has been largely improved due to the recent progress on deep convolutional neural networks. However, there still exists some challenges, such as lighting variation, complex background, which degrade the…

Computer Vision and Pattern Recognition · Computer Science 2021-08-02 Ziwei Chen , Yiye Wang , Wankou Yang

The analysis of 3D point clouds has diverse applications in robotics, vision and graphics. Processing them presents specific challenges since they are naturally sparse, can vary in spatial resolution and are typically unordered. Graph-based…

Computer Vision and Pattern Recognition · Computer Science 2023-04-03 Mohammad Khodadad , Morteza Rezanejad , Ali Shiraee Kasmaee , Kaleem Siddiqi , Dirk Walther , Hamidreza Mahyar

Dynamic Quality-of-Service (QoS) data capturing temporal variations in user-service interactions, are essential source for service selection and user behavior understanding. Approaches based on Latent Feature Analysis (LFA) have shown to be…

Machine Learning · Computer Science 2024-08-15 Fanghui Bi

Falling can have fatal consequences for elderly people especially if the fallen person is unable to call for help due to loss of consciousness or any injury. Automatic fall detection systems can assist through prompt fall alarms and by…

Computer Vision and Pattern Recognition · Computer Science 2020-04-06 Umar Asif , Stefan Von Cavallar , Jianbin Tang , Stefan Harrer

Skeleton detection is a technique that can beapplied to a variety of situations. It is especially critical identifying and tracking the movements of the elderly, especially in real-time fall detection. While conventional image processing…

Image and Video Processing · Electrical Eng. & Systems 2024-12-02 Masaharu Kodama , Runhe Huang

Attention-based transformers have played an important role in wireless sensor network (WSN) timing anomaly detection due to their ability to capture long-term dependencies. However, there are several issues that must be addressed, such as…

Signal Processing · Electrical Eng. & Systems 2025-03-04 Miao Ye , Zhibang Jiang , Xingsi Xue , Xingwang Li , Peng Wen , Yong Wang

Recommendation models utilizing Graph Convolutional Networks (GCNs) have achieved state-of-the-art performance, as they can integrate both the node information and the topological structure of the user-item interaction graph. However, these…

Information Retrieval · Computer Science 2022-11-28 Xin Zhou , Donghui Lin , Yong Liu , Chunyan Miao

Abnormal gait, its associated falls and complications have high patient morbidity, mortality. Computer vision detects, predicts patient gait abnormalities, assesses fall risk and serves as clinical decision support tool for physicians. This…

Computer Vision and Pattern Recognition · Computer Science 2020-04-07 Jasmin Hundall , Benson A. Babu

Deep convolutional neural networks (CNNs) have delivered superior performance in many computer vision tasks. In this paper, we propose a novel deep fully convolutional network model for accurate salient object detection. The key…

Computer Vision and Pattern Recognition · Computer Science 2017-08-08 Pingping Zhang , Dong Wang , Huchuan Lu , Hongyu Wang , Baocai Yin

Accurate real-time traffic forecasting is a core technological problem against the implementation of the intelligent transportation system. However, it remains challenging considering the complex spatial and temporal dependencies among…

Machine Learning · Computer Science 2020-06-23 Jiawei Zhu , Yujiao Song , Ling Zhao , Haifeng Li

Understanding dynamic systems like disease outbreaks, social influence, and information diffusion requires effective modeling of complex networks. Traditional evaluation methods for static networks often fall short when applied to temporal…

Social and Information Networks · Computer Science 2025-09-26 Alireza Rashnu , Sadegh Aliakbary

One essential problem in skeleton-based action recognition is how to extract discriminative features over all skeleton joints. However, the complexity of the State-Of-The-Art (SOTA) models of this task tends to be exceedingly sophisticated…

Computer Vision and Pattern Recognition · Computer Science 2020-10-21 Yi-Fan Song , Zhang Zhang , Caifeng Shan , Liang Wang

Graph convolutional networks (GCNs) have proven to be an effective approach for 3D human pose estimation. By naturally modeling the skeleton structure of the human body as a graph, GCNs are able to capture the spatial relationships between…

Computer Vision and Pattern Recognition · Computer Science 2023-08-09 Zaedul Islam , A. Ben Hamza

There has been a dramatic increase in the volume of videos and their related content uploaded to the internet. Accordingly, the need for efficient algorithms to analyse this vast amount of data has attracted significant research interest.…

Computer Vision and Pattern Recognition · Computer Science 2021-11-08 Motasem Alsawadi , Miguel Rio