Realistic model of spine geometry in the human skeleton in the VICON system

• Autorzy: Długosz M. , Chwała W. , Maciejasz P. , Alda W.
• Języki publikacji: EN

Abstrakty

EN

The human spine is definitively one of the most important parts of a living body. From biomechanical point of view, this organ is the most complicated structure, and a dynamic analysis of its motion still requires more detailed models be created. The aim of this study is to build an accurate computer model of the geometry of the spine and insert it into available skeleton models, used in Vicon. Up to now such models were simplified and that is why they were not sufficient for research of detailed motion of the spine. The paper describes the process of creating models of the vertebrae. During research, authors simultaneously used two techniques: 3D scanning of the vertebrae and computed modeling in 3D graphics software. A universal data format: .obj used to keep the information about surface shape of an object, its colour, texture etc. is presented in detail. In a discussion on Vicon data formats and relations between them, several file types are taken under consideration: marker files: .mkr, global model parameters files: .mp, files of the model structure: .mod. But first of all, step-by-step instructions of how to connect the files with geometrical objects for the visualization purposes, are presented.

Słowa kluczowe

EN

VICON system; motion capture; spine modeling; biomechanics

• Wydawca: Uniwersytet Jagielloński - Collegium Medicum ; Index Copernicus Sp. z o.o.
• Czasopismo: Bio-Algorithms and Med-Systems
• Rocznik: 2012
• Tom: Vol. 8, no. 1
• Strony: 123--132
• Opis fizyczny: Bibliogr. 5 poz., zdj.

Twórcy

autor

Długosz M.

• AGH University of Science and Technology, Faculty of Electrical Engineering, Automatics, Computer Science and Electronics, Department of Automatics, Kraków,

autor

Chwała W.

• University School of Physical Education in Kraków

autor

Maciejasz P.

• Institute of Precision and Biomedical Engineering, Warsaw University of Technology

autor

Alda W.

• AGH University of Science and Technology, Faculty of Electrical Engineering, Automatics, Computer Science and Electronics, Department of Computer Science, Kraków

Bibliografia

• [1] Monheit, G., Badler, N.I. A Kinematic Model of the Human Spine and Torso, IEEE Computer Graphics and Applications,Vol. 11, 2, March 1991
• [2] de Jager, M. Mathematical Modelling of the Human Cervical Spine: A Survey of the Literature, Report No. WFW-93.027 April 1993, Computational and Experimental Mechanics Faculty of Mechanical Engineering Eindhoven University of Technology The Netherlands
• [3] Scifert J, Totoribe K, Goel V, Huntzinger J , Spinal cord mechanics during flexion and extension of the cervical spine: a finite element study, Pain Physician. 2002 Oct;5(4):394-400.
• [4] Maciejasz P, Chwala W, A method of evaluating the kinematics of a spine deformed by scoliosis using a motion capture system, Journal of Biomechanics, 2006, vol. 39, S172
• [5] obj file specification is available on http://www.martinreddy.net/gfx/3d/OBJ.spec