Simple ‘smart’ glass reveals the future of artificial vision

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From left to right, Zongfu Yu, Ang Chen and Efram Khoram developed the concept for a “smart” piece of glass that recognizes images without any external power or circuits.

The sophisticated technology that powers face recognition in many modern smartphones someday could receive a high-tech upgrade that sounds — and looks — surprisingly low-tech.

This window to the future is none other than a piece of glass. University of Wisconsin–Madison engineers have devised a method to create pieces of “smart” glass that can recognize images without requiring any sensors or circuits or power sources.

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