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Hendrik Richter, Kadri Januzaj
Perceive-Sleeve: Towards Personalized Tactile Feedback on Interactive Surfaces
Young Researchers Consortium, 12th International Conference on Computers Helping People with Special Needs, ICCHP 2010, Vienna, Austria, July 2010. (bib)

Tactile feedback on interactive surfaces such as touchscreens provides significant benefits in terms of reducing error-rates, enhancing interaction-speed and minimizing visual distraction. Research about tactile feedback on direct-touch-surfaces can be categorized as follows: First, mobile actuator systems like the one used by Kaaresoja et al. move the mobile device or the devices screen as a whole using motors or piezoelectric actuators. With this approach only a single touch-input can be augmented haptically. Second, shape displays, such as FEELEX or Lumen are based on the segmentation of the interactive surface into individually movable haptic pixels. Currently, these systems only provide a small number of actuated points due to mechanical constraints. All these approaches share the assumption that haptic feedback has to be given at the location of the interaction. We propose spatially disuniting the body-part of interaction (hand, finger) and the resulting tactile feedback. In other words: while the user explores a virtual element on the interactive surface with his finger or hand, the resulting haptic stimuli are applied somewhere else on the body. Decisive for the position of application are human physiological conditions, the character of tactile information to be conveyed and the nature of the used haptic interface. This approach is potentially beneficial for providing haptic feedback on multi-touch surfaces, accuracy of interaction as well as additional personalized information via the sense of touch.