Mirror Turns That Frown Upside Down


University of Tokyo researchers have developed a mirror that makes a person appear happy even when not. A built-in camera tracks facial features in real time, then tweaks the image to turn up the corners of the mouth and create the beginnings of a smile in the eyes. Of what practical use would such a mirror be? Other Japanese researchers, according to a report in August, believe happy-face mirrors in retail stores would improve shoppers' dispositions and lead to more sales.

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