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Sensor-based human activity recognition (HAR) requires to predict the action of a person based on sensor-generated time series data. HAR has attracted major interest in the past few years, thanks to the large number of applications enabled…

Machine Learning · Computer Science 2021-03-30 Davide Buffelli , Fabio Vandin

Multi-shot pedestrian re-identification problem is at the core of surveillance video analysis. It matches two tracks of pedestrians from different cameras. In contrary to existing works that aggregate single frames features by time series…

Computer Vision and Pattern Recognition · Computer Science 2018-05-10 Jianfu Zhang , Naiyan Wang , Liqing Zhang

This work describes the use of on-board vehicle data from cars with advanced driver assistance features as a trip summary, with the goal of helping drivers contextualize their driving habits in terms of sustainability. The approach is…

Human-Computer Interaction · Computer Science 2024-04-26 Xia Wang , Sobenna Onwumelu , Jonathan Sprinkle

Wearable cameras are becoming more and more popular in several applications, increasing the interest of the research community in developing approaches for recognizing actions from the first-person point of view. An open challenge in…

Computer Vision and Pattern Recognition · Computer Science 2020-12-08 Mirco Planamente , Andrea Bottino , Barbara Caputo

Mobile sensing applications usually require time-series inputs from sensors. Some applications, such as tracking, can use sensed acceleration and rate of rotation to calculate displacement based on physical system models. Other…

Machine Learning · Computer Science 2017-07-04 Shuochao Yao , Shaohan Hu , Yiran Zhao , Aston Zhang , Tarek Abdelzaher

Sensor-based Human Activity Recognition facilitates unobtrusive monitoring of human movements. However, determining the most effective sensor placement for optimal classification performance remains challenging. This paper introduces a…

Machine Learning · Computer Science 2023-07-07 Orhan Konak , Alexander Wischmann , Robin van de Water , Bert Arnrich

The automatic characterization of pedestrians in surveillance footage is a tough challenge, particularly when the data is extremely diverse with cluttered backgrounds, and subjects are captured from varying distances, under multiple poses,…

Computer Vision and Pattern Recognition · Computer Science 2020-04-03 Ehsan Yaghoubi , Diana Borza , João Neves , Aruna Kumar , Hugo Proença

Human Activity Recognition (HAR) training data is often privacy-sensitive or held by non-cooperative entities. Federated Learning (FL) addresses such concerns by training ML models on edge clients. This work studies the impact of privacy in…

Sensing technology has significantly advanced in automating systems that reflect human movement, particularly in robotics and healthcare, where it is used to automatically detect target movements. This study develops a method to…

Machine Learning · Computer Science 2024-10-10 Yooseok Lim , Sujee Lee

Advances in IoT technologies combined with new algorithms have enabled the collection and processing of high-rate multi-source data streams that quantify human behavior in a fine-grained level and can lead to deeper insights on individual…

In this paper, we present work in progress on activity recognition and prediction in real homes using either binary sensor data or depth video data. We present our field trial and set-up for collecting and storing the data, our methods, and…

Computer Vision and Pattern Recognition · Computer Science 2019-05-22 Flavia Dias Casagrande , Evi Zouganeli

We propose a real-time human activity analysis system, where a user's activity can be quantiatively evaluated with respect to a ground truth recording. We use two Kinects to solve the ptorblem of self-occlusion through extraction optimal…

Multimedia · Computer Science 2017-12-01 Randy Tan , Naimul Khan , Ling Guan

Human health is closely associated with their daily behavior and environment. However, keeping a healthy lifestyle is still challenging for most people as it is difficult to recognize their living behaviors and identify their surrounding…

Machine Learning · Computer Science 2023-01-13 Mengxi Liu , Sungho Suh , Bo Zhou , Agnes Gruenerbl , Paul Lukowicz

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

Skeleton-based human action recognition has received widespread attention in recent years due to its diverse range of application scenarios. Due to the different sources of human skeletons, skeleton data naturally exhibit heterogeneity. The…

Computer Vision and Pattern Recognition · Computer Science 2025-06-05 Hongsong Wang , Xiaoyan Ma , Jidong Kuang , Jie Gui

Energy efficiency and low latency are crucial requirements for designing wearable AI-empowered human activity recognition systems, due to the hard constraints of battery operations and closed-loop feedback. While neural network models have…

Neural and Evolutionary Computing · Computer Science 2023-08-03 Sizhen Bian , Michele Magno

Due to the increasing number of mobile robots including domestic robots for cleaning and maintenance in developed countries, human activity recognition is inevitable for congruent human-robot interaction. Needless to say that this is indeed…

Human-Computer Interaction · Computer Science 2018-09-26 Iyiola E. Olatunji

Smartphone sensors based human activity recognition is attracting increasing interests nowadays with the popularization of smartphones. With the high sampling rates of smartphone sensors, it is a highly long-range temporal recognition…

Computer Vision and Pattern Recognition · Computer Science 2020-11-09 Beidi Zhao , Shuai Li , Yanbo Gao , Chuankun Li , Wanqing Li

Motion sensors such as accelerometers and gyroscopes measure the instant acceleration and rotation of a device, in three dimensions. Raw data streams from motion sensors embedded in portable and wearable devices may reveal private…

Machine Learning · Computer Science 2019-02-20 Mohammad Malekzadeh , Richard G. Clegg , Andrea Cavallaro , Hamed Haddadi

One-shot action recognition allows the recognition of human-performed actions with only a single training example. This can influence human-robot-interaction positively by enabling the robot to react to previously unseen behaviour. We…

Computer Vision and Pattern Recognition · Computer Science 2021-03-09 Raphael Memmesheimer , Simon Häring , Nick Theisen , Dietrich Paulus
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