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Journal Article

Effect of Impedance-Shaping on Perception of Soft Tissues in Macro-Micro Teleoperation


Son,  HI
Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society;

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Son, H., Bhattacharjee, T., & Hashimoto, H. (2012). Effect of Impedance-Shaping on Perception of Soft Tissues in Macro-Micro Teleoperation. IEEE Transactions on Industrial Electronics, 59(8), 3273-3285. doi:10.1109/TIE.2011.2148672.

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This paper aims at analyzing the effect of widely known impedance-shaping control method on the perception of soft-tissues in tele-microsurgical applications. The generalized teleoperation control architecture has been modified to include the impedance-shaping term. New performance index has been defined based on the two proposed indices for the detection and the discrimination of the soft environments to analyze the effect of this modified control on the kinesthetic perception of soft-tissues. The effect is then theoretically analyzed on the conventional position-position, force-position, and four-channel control architectures based on the newly defined index. The effectiveness of this newly proposed kinesthetic perception index is also verified using psychophysics experiments. The theoretical analysis of the effects of the impedance-shaping method on the perception of soft tissues is then validated using the proposed index by experiments with phantom soft tissues for conventional teleoperation architectures.