Comparison of Camera based and Inertial Measurement Unit based Motion Analysis

Seongho Jang, Si-bog Park, Sang-bog Moon, Jae Min Kim, Shi-uk Lee

2018

Abstract

Camera-based 3D motion analyzers are widely used to analyze body movements and gait, but they are expensive and require a large dedicated space. This study investigated whether inertial measurement unit (IMU)-based systems can replace such systems by analyzing kinematic measurement parameters. IMUs were attached to the abdomen and thigh and the shank and foot of both legs. The participant completed a 10 m-gait course 10 times and the hips, knees, and ankle joints were observed from the sagittal, frontal, and transverse planes during each gait cycle. The experiments were conducted with both a camera-based system and an IMU-based system. The measured gait analysis data were evaluated for validity and reliability using RMSE. In this regard, the differences between the RMSE values of the two systems determined through kinematic parameters ranged from a minimum of 1.39 to a maximum of 3.86. These results confirm that IMU-based systems can reliably replace camera-based systems for clinical body motion analysis and gait analysis.

Paper Citation

in Harvard Style

Jang S., Park S., Moon S., Kim J. and Lee S. (2018). Comparison of Camera based and Inertial Measurement Unit based Motion Analysis .In Proceedings of the 7th International Conference on Sensor Networks - Volume 1: SENSORNETS, ISBN 978-989-758-284-4, pages 161-167. DOI: 10.5220/0006716601610167

in Bibtex Style

@conference{sensornets18,
author={Seongho Jang and Si-bog Park and Sang-bog Moon and Jae Min Kim and Shi-uk Lee},
title={Comparison of Camera based and Inertial Measurement Unit based Motion Analysis },
booktitle={Proceedings of the 7th International Conference on Sensor Networks - Volume 1: SENSORNETS,},
year={2018},
pages={161-167},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006716601610167},
isbn={978-989-758-284-4},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 7th International Conference on Sensor Networks - Volume 1: SENSORNETS,
TI - Comparison of Camera based and Inertial Measurement Unit based Motion Analysis
SN - 978-989-758-284-4
AU - Jang S.
AU - Park S.
AU - Moon S.
AU - Kim J.
AU - Lee S.
PY - 2018
SP - 161
EP - 167
DO - 10.5220/0006716601610167