Abstract
We developed a simple kinematic model of a human body for real-time visualization applications in graphical virtual environments. For practical reasons a reduced number of active markers in optical measurements were employed to assess the values of joint variables, which caused computational issues in the configurations of the model that involved kinematic singularities. A method of handling the singularities by using simple algorithms is presented, enabling smooth and natural-appearing movements of the virtual figure without significantly affecting the natural ranges of human-like motion. The applicability of the model is demonstrated by a virtual mirror – a virtual reality application for real-time visualization of body movements enabling a visual feedback – which is useful in medical and performance studies.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
Similar content being viewed by others
References
Medved, V.: Measurement of Human Locomotion. CRC Press, Boca Raton (2001).
Holden, M.K.: Virtual environments for motor rehabilitation: review. Cyberpsychol. Behav. 8(3), 187–211 (2005).
Lenarčič, J.: Kinematics. In: Dorf R.C., Nof S.Y. (Eds.), International Encyclopedia of Robotics. John Wiley, New York (1988).
Frigo, C. and Rabuffetti, M.: Multifactorial estimation of hip and knee joint centres for clinical application and gait analysis. Gait Posture 8(2), 91–102 (1998).
Zatsiorsky, V.M.: Kinematics of Human Motion. Human Kinetics Publishers, Champaign (1998).
De Leva, P.: Adjustments to Zatsiorsky–Seluyanov’s segment inertia parameters. J. Biomech. 29, 1223–1230 (1995).
Zhao, W., Wu, G., and Sommer, H.J.: Closed form kinematics for a spatial closed-chain mechanism modeling biped stance. Mech. Mach. Theory 33(4), 379–387 (1998).
Koritnik T., Bajd T., and Munih, M.: Virtual environment for lower-extremities training. Gait Posture 27(2), 323–330 (2008).
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2010 Springer Science+Business Media B.V.
About this paper
Cite this paper
Koritnik, T., Bajd, T., Munih, M. (2010). A Simple Kinematic Model of a Human Body for Virtual Environments. In: Lenarcic, J., Stanisic, M. (eds) Advances in Robot Kinematics: Motion in Man and Machine. Springer, Dordrecht. https://doi.org/10.1007/978-90-481-9262-5_43
Download citation
DOI: https://doi.org/10.1007/978-90-481-9262-5_43
Published:
Publisher Name: Springer, Dordrecht
Print ISBN: 978-90-481-9261-8
Online ISBN: 978-90-481-9262-5
eBook Packages: EngineeringEngineering (R0)