Comparison of camera based and inertial measurement unit based motion analysis

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

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

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.

Original languageEnglish
Title of host publicationSENSORNETS 2018 - Proceedings of the 7th International Conference on Sensor Networks
EditorsEric Fleury, Andreas Ahrens, Cesar Benavente-Peces, Nancy Cam-Winget
PublisherSciTePress
Pages161-167
Number of pages7
ISBN (Electronic)9789897582844
StatePublished - 1 Jan 2018
Event7th International Conference on Sensor Networks, SENSORNETS 2018 - Funchal, Madeira, Portugal
Duration: 22 Jan 201824 Jan 2018

Publication series

NameSENSORNETS 2018 - Proceedings of the 7th International Conference on Sensor Networks
Volume2018-January

Other

Other7th International Conference on Sensor Networks, SENSORNETS 2018
CountryPortugal
CityFunchal, Madeira
Period22/01/1824/01/18

Fingerprint

Units of measurement
Gait analysis
Cameras
Kinematics
Motion analysis
Experiments

Keywords

  • Gait
  • Inertial Measurement Unit
  • Motion Analysis

Cite this

Jang, S., Park, S. B., Moon, S. B., Kim, J. M., & Lee, S-U. (2018). Comparison of camera based and inertial measurement unit based motion analysis. In E. Fleury, A. Ahrens, C. Benavente-Peces, & N. Cam-Winget (Eds.), SENSORNETS 2018 - Proceedings of the 7th International Conference on Sensor Networks (pp. 161-167). (SENSORNETS 2018 - Proceedings of the 7th International Conference on Sensor Networks; Vol. 2018-January). SciTePress.
Jang, Seongho ; Park, Si bog ; Moon, Sang bok ; Kim, Jae Min ; Lee, Shi-Uk. / Comparison of camera based and inertial measurement unit based motion analysis. SENSORNETS 2018 - Proceedings of the 7th International Conference on Sensor Networks. editor / Eric Fleury ; Andreas Ahrens ; Cesar Benavente-Peces ; Nancy Cam-Winget. SciTePress, 2018. pp. 161-167 (SENSORNETS 2018 - Proceedings of the 7th International Conference on Sensor Networks).
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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.",
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Jang, S, Park, SB, Moon, SB, Kim, JM & Lee, S-U 2018, Comparison of camera based and inertial measurement unit based motion analysis. in E Fleury, A Ahrens, C Benavente-Peces & N Cam-Winget (eds), SENSORNETS 2018 - Proceedings of the 7th International Conference on Sensor Networks. SENSORNETS 2018 - Proceedings of the 7th International Conference on Sensor Networks, vol. 2018-January, SciTePress, pp. 161-167, 7th International Conference on Sensor Networks, SENSORNETS 2018, Funchal, Madeira, Portugal, 22/01/18.

Comparison of camera based and inertial measurement unit based motion analysis. / Jang, Seongho; Park, Si bog; Moon, Sang bok; Kim, Jae Min; Lee, Shi-Uk.

SENSORNETS 2018 - Proceedings of the 7th International Conference on Sensor Networks. ed. / Eric Fleury; Andreas Ahrens; Cesar Benavente-Peces; Nancy Cam-Winget. SciTePress, 2018. p. 161-167 (SENSORNETS 2018 - Proceedings of the 7th International Conference on Sensor Networks; Vol. 2018-January).

Research output: Chapter in Book/Report/Conference proceedingConference contributionResearchpeer-review

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Jang S, Park SB, Moon SB, Kim JM, Lee S-U. Comparison of camera based and inertial measurement unit based motion analysis. In Fleury E, Ahrens A, Benavente-Peces C, Cam-Winget N, editors, SENSORNETS 2018 - Proceedings of the 7th International Conference on Sensor Networks. SciTePress. 2018. p. 161-167. (SENSORNETS 2018 - Proceedings of the 7th International Conference on Sensor Networks).