Sensors 2011, 11(2), 1489-1525; doi:10.3390/s110201489
Review

Estimating Three-Dimensional Orientation of Human Body Parts by Inertial/Magnetic Sensing

The BioRobotics Institute, Scuola Superiore Sant'Anna, Piazza Martiri della Libertà 33, 56124 Pisa, Italy
Received: 15 December 2010; in revised form: 13 January 2011 / Accepted: 15 January 2011 / Published: 26 January 2011
(This article belongs to the Special Issue Sensors in Biomechanics and Biomedicine)
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Abstract: User-worn sensing units composed of inertial and magnetic sensors are becoming increasingly popular in various domains, including biomedical engineering, robotics, virtual reality, where they can also be applied for real-time tracking of the orientation of human body parts in the three-dimensional (3D) space. Although they are a promising choice as wearable sensors under many respects, the inertial and magnetic sensors currently in use offer measuring performance that are critical in order to achieve and maintain accurate 3D-orientation estimates, anytime and anywhere. This paper reviews the main sensor fusion and filtering techniques proposed for accurate inertial/magnetic orientation tracking of human body parts; it also gives useful recipes for their actual implementation.
Keywords: human body motion tracking; inertial/magnetic sensing; strap-down inertial navigation; sensor fusion; Kalman filtering; quaternion

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MDPI and ACS Style

Sabatini, A.M. Estimating Three-Dimensional Orientation of Human Body Parts by Inertial/Magnetic Sensing. Sensors 2011, 11, 1489-1525.

AMA Style

Sabatini AM. Estimating Three-Dimensional Orientation of Human Body Parts by Inertial/Magnetic Sensing. Sensors. 2011; 11(2):1489-1525.

Chicago/Turabian Style

Sabatini, Angelo Maria. 2011. "Estimating Three-Dimensional Orientation of Human Body Parts by Inertial/Magnetic Sensing." Sensors 11, no. 2: 1489-1525.

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