Takayuki Iwamoto
Mari Tatezono
Hiroyuki Shinoda
Summary:
Goal: to provide high fidelity tactile feedback for interaction with ultrasound, acoustic radiation pressure.
An array of 91 transducers were used to form a tactile feedback surface. The sensors were activated to find the radius of the focus point , force/pressure exerted at a distance by the tactile device on the hand. The evaluation of the system was done based on comparison of the theoretical values calculated with the practical measurements. The user study was not systematic and does not have quantitative data. The user felt the tactile sensation when the feedback was in the form of vibration rather than constant pressure.
Discussion:
This mode of feedback enriches user experience. This device could change the mode of interaction for blind people. The interaction medium for blind people is predominantly voice based. The visual display can be replaced by this device to provide a better interaction for the blind.
Yes, I agree that this combined with speech and sound might be able to greatly enhance the user experience for the blind. Currently, those who are fully blind can only imagine what the computer interface looks like. I think adding this extra interface dimension can give them a much better idea of what they are interacting with as well as increasing productivity.
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