Cited by 324Context-Aware Activity Recognition SystemsGait Recognition and AnalysisHuman Mobility and Location-Based Analysis

A Comparative Study on Human Activity Recognition Using Inertial Sensors in a Smartphone

Wang, Aiguo, Chen, Guilin, Yang, Jing, Zhao, Shenghui, Chang, Chih-Yung·2016·IEEE Sensors Journal

Abstract

Activity recognition plays an essential role in bridging the gap between the low-level sensor data and the high-level applications in ambient-assisted living systems. With the aim to obtain satisfactory recognition rate and adapt to various application scenarios, a variety of sensors have been exploited, among which, smartphone-embedded inertial sensors are widely applied due to its convenience, low cost, and intrusiveness. In this paper, we explore the power of triaxial accelerometer and gyroscope built-in a smartphone in recognizing human physical activities in situations, where they are used simultaneously or separately. A novel feature selection approach is then proposed in order to select a subset of discriminant features, construct an online activity recognizer with better generalization ability, and reduce the smartphone power consumption. Experimental results on a publicly available data set show that the fusion of both accelerometer and gyroscope data contributes to obtain better recognition performance than that of using single source data, and that the proposed feature selector outperforms three other comparative approaches in terms of four performance measures. In addition, great improvement in time performance can be achieved with an effective feature selector, indicating the way of power saving and its applicability to real-world activity recognition.

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Crossref · 10.1109/jsen.2016.2545708

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Authors
Wang, A., Chen, G., Yang, J., Zhao, S., & Chang, C.-Y.
Affiliations
  • Hefei University of Technology (CN)
  • Chuzhou University (CN)
  • Tamkang University (TW)
Venue
IEEE Sensors Journal
Published
2016-06
Volume
16
Issue
11
Pages
4566-4578
ISSN
  • 1530-437X (ISSN-L)
  • 1558-1748
  • 2379-9153
OpenAlex
W2316564986
Cited by
324
References
46
Citations by year
2026: 5 · 2025: 16 · 2024: 26 · 2023: 36 · 2022: 55 · 2021: 42 · 2020: 51 · 2019: 35 · 2018: 28 · 2017: 27 · 2016: 3
FWCI
21.04
Type
journal article
Language
en
Open access
closed
Locations
  • IEEE Sensors Journal (publishedVersion)
  • Tamkang University Institutional Repository (TKUIR) (submittedVersion)
Funders
National Natural Science Foundation of China (61305064, 61472057)
Topics
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Context-Aware Activity Recognition Systems
  • Physical Sciences › Engineering › Biomedical Engineering › Gait Recognition and Analysis
  • Social Sciences › Transportation › Human Mobility and Location-Based Analysis
Keywords
human activity recognition, smartphone inertial sensors, accelerometer, gyroscope, sensor fusion, feature selection, ambient assisted living, smartphone power consumption, wearable sensors

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