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This paper demonstrates a system for 3D force prediction using fingernail imaging, in which video images of the human fingernail are used to predict the normal and shear forces that occur when the finger is in contact with a flat surface. The automated calibration uses a magnetic levitation haptic device (MLHD) whose flotor has been modified to apply forces to the human fingerpad. The system accurately...
This paper demonstrates fast, accurate, and stable force control in three axes simultaneously when a flat surface is pressed against the human fingerpad. The primary application of this force control is for the automated calibration of a fingernail imaging system, where video images of the human fingernail are used to predict the normal and shear forces that occur when the fingerpad is pressed against...
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