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Haptic interface protocol for FEM-based deformable model and effects on fineness of force feedback and perceived hardness

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5 Author(s)
Kuroda, Y. ; Graduate School of Engineering Science, Osaka University, Toyonaka 5608531, Japan ; Okumura, Yosuke ; Kamada, Kyousuke ; Imura, M.
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The remote haptic collaboration system between operating and assistant surgeons causes both shift and step delays of force feedback, and then makes users feel coarse reaction forces and different hardness of the object. In this study, we propose a haptic interface protocol for finite-element-method based deformable objects, in order to achieve a high update rate of force calculation. The method exports the necessary information for calculation of reaction forces from the simulation loop to the haptic loop. The experimental results indicated that the proposed method improved the fineness of force feedback and subjective hardness significantly.

Published in:

Engineering in Medicine and Biology Society, EMBC, 2011 Annual International Conference of the IEEE

Date of Conference:

Aug. 30 2011-Sept. 3 2011