Haptic interaction objective evaluation in needle insertion task simulation

Formulation of perceptual objective metrics for haptic interaction evaluation is still a challenge. These metrics are created including the human perception and the distortion intensity of the haptic signals, however, they disregarded peculiarities of tasks to be performed during human-computer interaction. Thus, we proposed a metric specialized in healthcare training for haptic interaction evaluation, that considers the importance degree of the different steps of a task and distortion intensity. The novel perceptual objective metric was validated with experts from dentistry area. The task selected was needle insertion, a common task in healthcare training systems. Our metric was compared to a state of the art metric using position haptic attribute and presented more coherent results with users perception in some cases.

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