Wearable device-based gait recognition using angle embedded gait dynamic images and a convolutional neural network

Zhao, Yongjia and Zhou, Suiping (2017) Wearable device-based gait recognition using angle embedded gait dynamic images and a convolutional neural network. Sensors, 17 (3). ISSN 1424-8220 (doi:https://doi.org/10.3390/s17030478)

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Abstract

The widespread installation of inertial sensors in smartphones and other wearable devices provides a valuable opportunity to identify people by analyzing their gait patterns, for either cooperative or non-cooperative circumstances. However, it is still a challenging task to reliably extract discriminative features for gait recognition with noisy and complex data sequences collected from casually worn wearable devices like smartphones. To cope with this problem, we propose a novel image-based gait recognition approach using the Convolutional Neural Network (CNN) without the need to manually extract discriminative features. The CNN’s input image, which is encoded straightforwardly from the inertial sensor data sequences, is called Angle Embedded Gait Dynamic Image (AE-GDI). AE-GDI is a new two-dimensional representation of gait dynamics, which is invariant to rotation and translation. The performance of the proposed approach in gait authentication and gait labeling is evaluated using two datasets: (1) the McGill University dataset, which is collected under realistic conditions; and (2) the Osaka University dataset with the largest number of subjects. Experimental results show that the proposed approach achieves competitive recognition accuracy over existing approaches and provides an effective parametric solution for identification among a large number of subjects by gait patterns.

Item Type: Article
Additional Information: Article number=478
Research Areas: A. > School of Science and Technology > Computer Science
Item ID: 23635
Notes on copyright: © 2017 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
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Depositing User: Suiping Zhou
Date Deposited: 23 Feb 2018 18:06
Last Modified: 03 Apr 2019 16:35
URI: https://eprints.mdx.ac.uk/id/eprint/23635

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