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    Soft tissue deformation with neural dynamics for surgery simulation

    Access Status
    Fulltext not available
    Authors
    Zhong, Yongmin
    Shirinzadeh, B.
    Smith, J.
    Date
    2007
    Type
    Journal Article
    
    Metadata
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    Citation
    Zhong, Yongmin and Shirinzadeh, Bijian and Smith, Julian. 2007. Soft tissue deformation with neural dynamics for surgery simulation. International Journal of Robotics and Automation 22 (1): pp. 1-9.
    Source Title
    International Journal of Robotics and Automation
    DOI
    10.2316/Journal.206.2007.1.206-1000
    ISSN
    0826-8185
    URI
    http://hdl.handle.net/20.500.11937/47516
    Collection
    • Curtin Research Publications
    Abstract

    Soft tissue deformation is of great importance to virtual-reality-based-surgery simulation. This paper presents a new neural-dynamics-based methodology for simulation of soft tissue deformation from the perspective of energy propagation. A novel neural network is established to propagate the energy generated by an external force among mass points of a soft tissue. The stability of the proposed neural network system is proved by using the Lyapunov stability theory. A potential-based method is presented to derive the internal forces from the natural energy distribution established by the neural dynamics. Integration with a haptic device has been achieved for interactive deformation simulation with force feedback. The proposed methodology not only accommodates isotropic, anisotropic and inhomogeneous materials by simple modification of the control coefficients, but it also accepts large-range deformations.

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