Activity-Free User Identification Using Wearables Based on Vision Techniques

In order to achieve the promise of smart spaces where the environment acts to fulfill the needs of users in an unobtrusive and personalized manner, it is necessary to provide means for a seamless and continuous identification of users to know who indeed is interacting with the system and to whom the...

Full description

Bibliographic Details
Main Authors: Alejandro Sanchez Guinea, Simon Heinrich, Max Mühlhäuser
Format: Article
Language:English
Published: MDPI AG 2022-09-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/22/19/7368
_version_ 1827652995721986048
author Alejandro Sanchez Guinea
Simon Heinrich
Max Mühlhäuser
author_facet Alejandro Sanchez Guinea
Simon Heinrich
Max Mühlhäuser
author_sort Alejandro Sanchez Guinea
collection DOAJ
description In order to achieve the promise of smart spaces where the environment acts to fulfill the needs of users in an unobtrusive and personalized manner, it is necessary to provide means for a seamless and continuous identification of users to know who indeed is interacting with the system and to whom the smart services are to be provided. In this paper, we propose a new approach capable of performing activity-free identification of users based on hand and arm motion patterns obtained from an wrist-worn inertial measurement unit (IMU). Our approach is not constrained to particular types of movements, gestures, or activities, thus, allowing users to perform freely and unconstrained their daily routine while the user identification takes place. We evaluate our approach based on IMU data collected from 23 people performing their daily routines unconstrained. Our results indicate that our approach is able to perform activity-free user identification with an accuracy of 0.9485 for 23 users without requiring any direct input or specific action from users. Furthermore, our evaluation provides evidence regarding the robustness of our approach in various different configurations.
first_indexed 2024-03-09T21:10:53Z
format Article
id doaj.art-3008e683cb45477d896d98f998c8d659
institution Directory Open Access Journal
issn 1424-8220
language English
last_indexed 2024-03-09T21:10:53Z
publishDate 2022-09-01
publisher MDPI AG
record_format Article
series Sensors
spelling doaj.art-3008e683cb45477d896d98f998c8d6592023-11-23T21:48:04ZengMDPI AGSensors1424-82202022-09-012219736810.3390/s22197368Activity-Free User Identification Using Wearables Based on Vision TechniquesAlejandro Sanchez Guinea0Simon Heinrich1Max Mühlhäuser2Department of Computer Science, Technical University of Darmstadt, 64289 Darmstadt, GermanyDepartment of Computer Science, Technical University of Darmstadt, 64289 Darmstadt, GermanyDepartment of Computer Science, Technical University of Darmstadt, 64289 Darmstadt, GermanyIn order to achieve the promise of smart spaces where the environment acts to fulfill the needs of users in an unobtrusive and personalized manner, it is necessary to provide means for a seamless and continuous identification of users to know who indeed is interacting with the system and to whom the smart services are to be provided. In this paper, we propose a new approach capable of performing activity-free identification of users based on hand and arm motion patterns obtained from an wrist-worn inertial measurement unit (IMU). Our approach is not constrained to particular types of movements, gestures, or activities, thus, allowing users to perform freely and unconstrained their daily routine while the user identification takes place. We evaluate our approach based on IMU data collected from 23 people performing their daily routines unconstrained. Our results indicate that our approach is able to perform activity-free user identification with an accuracy of 0.9485 for 23 users without requiring any direct input or specific action from users. Furthermore, our evaluation provides evidence regarding the robustness of our approach in various different configurations.https://www.mdpi.com/1424-8220/22/19/7368user identificationimage representationCNNsIMUinertial sensorswearable sensors
spellingShingle Alejandro Sanchez Guinea
Simon Heinrich
Max Mühlhäuser
Activity-Free User Identification Using Wearables Based on Vision Techniques
Sensors
user identification
image representation
CNNs
IMU
inertial sensors
wearable sensors
title Activity-Free User Identification Using Wearables Based on Vision Techniques
title_full Activity-Free User Identification Using Wearables Based on Vision Techniques
title_fullStr Activity-Free User Identification Using Wearables Based on Vision Techniques
title_full_unstemmed Activity-Free User Identification Using Wearables Based on Vision Techniques
title_short Activity-Free User Identification Using Wearables Based on Vision Techniques
title_sort activity free user identification using wearables based on vision techniques
topic user identification
image representation
CNNs
IMU
inertial sensors
wearable sensors
url https://www.mdpi.com/1424-8220/22/19/7368
work_keys_str_mv AT alejandrosanchezguinea activityfreeuseridentificationusingwearablesbasedonvisiontechniques
AT simonheinrich activityfreeuseridentificationusingwearablesbasedonvisiontechniques
AT maxmuhlhauser activityfreeuseridentificationusingwearablesbasedonvisiontechniques