Imagine turning a whiteboard, glass window or even a wooden table top into a responsive, touch sensitive surface. A low cost system developed by Nanyang Technological University (NTU), based on the principles of vibration and imaging that is able to track the movements of multiple fingers and of objects, can do just that.
Retrofitting the system onto existing flat-panel TVs will transform it into new, touch sensitive display screens, at only a fraction of the cost of new touch-sensitive display screens, which can cost tens of thousands of dollars.
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New capability allows surfaces to be converted into touch screens
