Wearable motion capturing with the flexing and turning based on a hetero-core fiber optic stretching sensor

Y. Koyama; M. Nishiyama; K. Watanabe

doi:10.1117/12.885068

17 May 2011 Wearable motion capturing with the flexing and turning based on a hetero-core fiber optic stretching sensor

Y. Koyama, M. Nishiyama, K. Watanabe

Proceedings Volume 7753, 21st International Conference on Optical Fiber Sensors; 77534B (2011) https://doi.org/10.1117/12.885068
Event: 21st International Conference on Optical Fibre Sensors (OFS21), 2011, Ottawa, Canada

Abstract

In recent years, motion capturing technologies have been applied to the service of the rehabilitation for the physically challenged people and practicing sports in human daily life. In these application fields, it is important that a measurement system does not prevent human from doing natural activity for unrestricted motion capture in daily-life. The hetero-core optic fiber sensor that we developed is suited for the unconstrained motion capturing because of optical intensity-based measurement with excellent stability and repeatability using single-mode transmission fibers and needless of any compensation. In this paper, we propose the development of wearable sensor enables unconstrained motion capture systems using the hetero-core fiber optic stretching sensor in real time, which satisfy user's requirements of comfort and ubiquitous. The experiments of motion capturing were demonstrated by setting the hetero-core fiber optic stretching sensor on the elbow, the back of the body and the waist. As a result, the hetero-core fiber optic stretching sensor was able to detect the displacement of expansion and contraction in the optical loss by flexion motion of the arm and the trunk motion. The optical loss performance of the hetero-core fiber optic stretching sensor reveals monotonic characteristics with the displacement. The optical loss changes at the full scale of motion were 1.45dB for the motion of anteflexion and 1.99 dB for the motion of turn. The real-time motion capturing was demonstrated by means of the proposed hetero-core fiber optic stretching sensor without restricting natural human behavior.

Citation Download Citation

Y. Koyama, M. Nishiyama, and K. Watanabe "Wearable motion capturing with the flexing and turning based on a hetero-core fiber optic stretching sensor", Proc. SPIE 7753, 21st International Conference on Optical Fiber Sensors, 77534B (17 May 2011); https://doi.org/10.1117/12.885068

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available