Abstract
Haptic augmented reality (AR) allows to modulate the haptic properties of a real object by providing virtual haptic feedback. We previously developed a haptic AR system wherein the stiffness of a real object can be augmented with the aid of a haptic interface. To demonstrate its potential, this paper presents a case study for medical training of breast cancer palpation. A real breast model made of soft silicone is augmented with a virtual tumor rendered inside. Haptic stimuli for the virtual tumor are generated based on a contact dynamics model identified via real measurements, without the need of geometric information on the breast. A subjective evaluation confirmed the realism and fidelity of our palpation system.
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