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Automatic analysis of the video is one of most complex problems in the fields of computer vision and machine learning. A significant part of this research deals with (human) activity recognition (HAR) since humans, and the activities that…

Computer Vision and Pattern Recognition · Computer Science 2018-05-04 Konstantin Sozykin , Stanislav Protasov , Adil Khan , Rasheed Hussain , Jooyoung Lee

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

With the success of deep learning, object recognition systems that can be deployed for real-world applications are becoming commonplace. However, inference that needs to largely take place on the `edge' (not processed on servers), is a…

Computer Vision and Pattern Recognition · Computer Science 2020-01-30 Andres Ussa , Luca Della Vedova , Vandana Reddy Padala , Deepak Singla , Jyotibdha Acharya , Charles Zhang Lei , Garrick Orchard , Arindam Basu , Bharath Ramesh

Human detection in videos plays an important role in various real-life applications. Most traditional approaches depend on utilizing handcrafted features, which are problem-dependent and optimal for specific tasks. Moreover, they are highly…

Machine Learning · Computer Science 2026-01-06 Nouar AlDahoul , Aznul Qalid Md Sabri , Ali Mohammed Mansoor

Human activity recognition (HAR) with wearables is promising research that can be widely adopted in many smart healthcare applications. In recent years, the deep learning-based HAR models have achieved impressive recognition performance.…

Computer Vision and Pattern Recognition · Computer Science 2022-08-17 Songpengcheng Xia , Lei Chu , Ling Pei , Wenxian Yu , Robert C. Qiu

Human Activity Recognition (HAR) plays a critical role in a wide range of real-world applications, and it is traditionally achieved via wearable sensing. Recently, to avoid the burden and discomfort caused by wearable devices, device-free…

Networking and Internet Architecture · Computer Science 2021-10-29 Zhe Chen , Chao Cai , Tianyue Zheng , Jun Luo , Jie Xiong , Xin Wang

Advancements in Biological Signal Processing (BSP) and Machine-Learning (ML) models have paved the path for development of novel immersive Human-Machine Interfaces (HMI). In this context, there has been a surge of significant interest in…

Machine Learning · Computer Science 2022-10-28 Soheil Zabihi , Elahe Rahimian , Amir Asif , Arash Mohammadi

This paper takes initial strides at designing and evaluating a vision-based system for privacy ensured activity monitoring. The proposed technology utilizing Artificial Intelligence (AI)-empowered proactive systems offering continuous…

Computer Vision and Pattern Recognition · Computer Science 2021-02-09 Anbumalar Saravanan , Justin Sanchez , Hassan Ghasemzadeh , Aurelia Macabasco-O'Connell , Hamed Tabkhi

The field of Human Activity Recognition (HAR) focuses on obtaining and analysing data captured from monitoring devices (e.g. sensors). There is a wide range of applications within the field; for instance, assisted living, security…

Machine Learning · Computer Science 2020-05-18 Flávia Alves , Martin Gairing , Frans A. Oliehoek , Thanh-Toan Do

Deep learning inference that needs to largely take place on the 'edge' is a highly computational and memory intensive workload, making it intractable for low-power, embedded platforms such as mobile nodes and remote security applications.…

Computer Vision and Pattern Recognition · Computer Science 2020-07-23 Andres Ussa , Chockalingam Senthil Rajen , Deepak Singla , Jyotibdha Acharya , Gideon Fu Chuanrong , Arindam Basu , Bharath Ramesh

Understanding accurate information on human behaviours is one of the most important tasks in machine intelligence. Human Activity Recognition that aims to understand human activities from a video is a challenging task due to various…

Computer Vision and Pattern Recognition · Computer Science 2021-06-25 Ivaxi Sheth

Subjective interpretation and content diversity make predicting whether an image is private or public a challenging task. Graph neural networks combined with convolutional neural networks (CNNs), which consist of 14,000 to 500 millions…

Computer Vision and Pattern Recognition · Computer Science 2025-03-18 Alessio Xompero , Andrea Cavallaro

Automated human action recognition is one of the most attractive and practical research fields in computer vision, in spite of its high computational costs. In such systems, the human action labelling is based on the appearance and patterns…

Computer Vision and Pattern Recognition · Computer Science 2020-07-07 Fatemeh Serpush , Mahdi Rezaei

Despite the fact that notable improvements have been made recently in the field of feature extraction and classification, human action recognition is still challenging, especially in images, in which, unlike videos, there is no motion.…

Computer Vision and Pattern Recognition · Computer Science 2020-03-24 Sina Mohammadi , Sina Ghofrani Majelan , Shahriar B. Shokouhi

Perceiving humans in the context of Intelligent Transportation Systems (ITS) often relies on multiple cameras or expensive LiDAR sensors. In this work, we present a new cost-effective vision-based method that perceives humans' locations in…

Computer Vision and Pattern Recognition · Computer Science 2021-05-04 Lorenzo Bertoni , Sven Kreiss , Alexandre Alahi

Video-based behavior recognition is essential in fields such as public safety, intelligent surveillance, and human-computer interaction. Traditional 3D Convolutional Neural Network (3D CNN) effectively capture local spatiotemporal features…

Computer Vision and Pattern Recognition · Computer Science 2025-08-12 Xiuliang Zhang , Tadiwa Elisha Nyamasvisva , Chuntao Liu

Real-time 3D human action recognition has broad industrial applications, such as surveillance, human-computer interaction, and healthcare monitoring. By relying on complex spatio-temporal local encoding, most existing point cloud sequence…

Computer Vision and Pattern Recognition · Computer Science 2024-02-27 Xing Li , Qian Huang , Zhijian Wang , Zhenjie Hou , Tianjin Yang , Zhuang Miao

This study introduces a method for efficiently detecting objects within 3D point clouds using convolutional neural networks (CNNs). Our approach adopts a unique feature-centric voting mechanism to construct convolutional layers that…

Computer Vision and Pattern Recognition · Computer Science 2024-12-05 Tianyi Lyu , Dian Gu , Peiyuan Chen , Yaoting Jiang , Zhenhong Zhang , Huadong Pang , Li Zhou , Yiping Dong

Human actions recognition has attracted more and more people's attention. Many technology have been developed to express human action's features, such as image, skeleton-based, and channel state information(CSI). Among them, on account of…

Computer Vision and Pattern Recognition · Computer Science 2019-11-22 Liu Yafeng , Chen Tian , Liu Zhongyu , Zhang Lei , Hu Yanjun , Ding Enjie

Human Activity Recognition (HAR) using wearable sensor data has become a central task in mobile computing, healthcare, and human-computer interaction. Despite the success of traditional deep learning models such as CNNs and RNNs, they often…

Machine Learning · Computer Science 2025-05-27 Yunbo Liu , Xukui Qin , Yifan Gao , Xiang Li , Chengwei Feng