Giant smiley face tower broadcasts the mood of German town

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This may seem like a sinister social engineering experiment conducted by a dystopian sugar-shocked dictator, but it's just the Fühlometer, a performance art piece by Julius von Bismarck, Benjamin Maus, and Richard Wilhelmer. Explains Wilhelmer's website:

"Fuehlometer" (Feel-o-meter) or "Public Face" is an interactive art installation that shows the mood of a city by displaying it in the form of a monumental Smiley. The system allows to read emotions out of random people's faces. The faces are analyzed by sophisticated software (contributed by the Fraunhofer Institut). The obtained mood data are then stored on a server and processed by the smiley to visualize the emotions in real-time.

Here's the piece on display in 2010 at Lindau Island in Germany. Could these be established across the land as public indicators of the National Happiness Index?

[Via Laughing Squid]