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Automated and accurate human activity recognition (HAR) using body-worn sensors enables practical and cost efficient remote monitoring of Activity of DailyLiving (ADL), which are shown to provide clinical insights across multiple…

Signal Processing · Electrical Eng. & Systems 2023-05-01 Maximilien Burq , Niranjan Sridhar

In practical applications, computer vision tasks often need to be addressed simultaneously. Multitask learning typically achieves this by jointly training a single deep neural network to learn shared representations, providing efficiency…

Computer Vision and Pattern Recognition · Computer Science 2025-05-26 Konstantinos Spathis , Nikolaos Kardaris , Petros Maragos

Human activity recognition is challenging because sensor signals shift with context, motion, and environment; effective models must therefore remain stable as the world around them changes. We introduce a categorical symmetry-aware learning…

Machine Learning · Computer Science 2025-11-04 Yoshihiro Maruyama

Recent years have witnessed the rapid development of human activity recognition (HAR) based on wearable sensor data. One can find many practical applications in this area, especially in the field of health care. Many machine learning…

Machine Learning · Computer Science 2019-05-16 H. D. Nguyen , K. P. Tran , X. Zeng , L. Koehl , G. Tartare

In the human activity recognition research area, prior studies predominantly concentrate on leveraging advanced algorithms on public datasets to enhance recognition performance, little attention has been paid to executing real-time kitchen…

Signal Processing · Electrical Eng. & Systems 2024-09-11 Mengxi Liu , Sungho Suh , Juan Felipe Vargas , Bo Zhou , Agnes Grünerbl , Paul Lukowicz

Understanding continuous human actions is a non-trivial but important problem in computer vision. Although there exists a large corpus of work in the recognition of action sequences, most approaches suffer from problems relating to vast…

Computer Vision and Pattern Recognition · Computer Science 2019-09-27 Eren Erdal Aksoy , Adil Orhan , Florentin Woergoetter

Recent advances in digital platforms generate rich, high-dimensional logs of human behavior, and machine learning models have helped social scientists explain knowledge accumulation, communication, and information diffusion. Such models,…

Human-Computer Interaction · Computer Science 2025-05-02 Akira Matsui , Emilio Ferrara

Existing work in human activity detection classifies physical activities using a single fixed-length subset of a sensor signal. However, temporally consecutive subsets of a sensor signal are not utilized. This is not optimal for classifying…

Neural and Evolutionary Computing · Computer Science 2018-12-06 Niko Reunanen , Ville Könönen , Hermanni Hälvä , Jani Mäntyjärvi , Arttu Lämsä , Jussi Liikka

Human activity recognition (HAR) is an essential research field that has been used in different applications including home and workplace automation, security and surveillance as well as healthcare. Starting from conventional machine…

Signal Processing · Electrical Eng. & Systems 2023-09-15 Rebeen Ali Hamad , Wai Lok Woo , Bo Wei , Longzhi Yang

Active perception has been employed in many domains, particularly in the field of robotics. The idea of active perception is to utilize the input data to predict the next action that can help robots to improve their performance. The main…

Robotics · Computer Science 2021-09-08 Elijah S. Lee

In a human-centered intelligent manufacturing system, sensing and understanding of the worker's activity are the primary tasks. In this paper, we propose a novel multi-modal approach for worker activity recognition by leveraging information…

Computer Vision and Pattern Recognition · Computer Science 2019-08-22 Wenjin Tao , Ming C. Leu , Zhaozheng Yin

This paper presents a novel framework for real-time human action recognition in industrial contexts, using standard 2D cameras. We introduce a complete pipeline for robust and real-time estimation of human joint kinematics, input to a…

Despite the notable progress made in action recognition tasks, not much work has been done in action recognition specifically for human-robot interaction. In this paper, we deeply explore the characteristics of the action recognition task…

Computer Vision and Pattern Recognition · Computer Science 2020-07-03 Ziyang Song , Ziyi Yin , Zejian Yuan , Chong Zhang , Wanchao Chi , Yonggen Ling , Shenghao Zhang

Wearable sensor devices, which offer the advantage of recording daily objects used by a person while performing an activity, enable the feasibility of unsupervised Human Activity Recognition (HAR). Unfortunately, previous unsupervised…

Human-Computer Interaction · Computer Science 2023-06-12 Qingxin Xia , Takuya Maekawa , Takahiro Hara

This paper presents a survey of human action recognition approaches based on visual data recorded from a single video camera. We propose an organizing framework which puts in evidence the evolution of the area, with techniques moving from…

Computer Vision and Pattern Recognition · Computer Science 2010-06-18 Ana Paula Brandão Lopes , Eduardo Alves do Valle , Jussara Marques de Almeida , Arnaldo Albuquerque de Araújo

We introduce Action Discovery, a novel setup within Temporal Action Segmentation that addresses the challenge of defining and annotating ambiguous actions and incomplete annotations in partially labeled datasets. In this setup, only a…

Computer Vision and Pattern Recognition · Computer Science 2025-08-08 Federico Spurio , Emad Bahrami , Olga Zatsarynna , Yazan Abu Farha , Gianpiero Francesca , Juergen Gall

Although dense local spatial-temporal features with bag-of-features representation achieve state-of-the-art performance for action recognition, the huge feature number and feature size prevent current methods from scaling up to real size…

Computer Vision and Pattern Recognition · Computer Science 2015-01-29 Youjie Zhou , Hongkai Yu , Song Wang

Derived from rapid advances in computer vision and machine learning, video analysis tasks have been moving from inferring the present state to predicting the future state. Vision-based action recognition and prediction from videos are such…

Computer Vision and Pattern Recognition · Computer Science 2022-02-15 Yu Kong , Yun Fu

Incremental learning is a complex process due to potential catastrophic forgetting of old tasks when learning new ones. This is mainly due to transient features that do not fit from task to task. In this paper, we focus on complex emotion…

Computer Vision and Pattern Recognition · Computer Science 2025-10-17 Thibault Geoffroy , Gauthier Gerspacher , Lionel Prevost

Human Activity Recognition (HAR) has recently witnessed advancements with Transformer-based models. Especially, ActionFormer shows us a new perspectives for HAR in the sense that this approach gives us additional outputs which detect the…

Machine Learning · Computer Science 2025-05-28 Kunpeng Zhao , Asahi Miyazaki , Tsuyoshi Okita