Using Virtual Worlds to ‘Soft Control’ People’s Movements in the Real One

Science Daily

ScienceDaily (Mar. 16, 2012) — Eighty-eight percent of Americans now own a cell phone, forming a massive network that offers scientists a wealth of information and an infinite number of new applications. With the help of these phone users — and their devices’ cameras, audio recorders, and other features — researchers envision endless possibilities for gathering huge amounts of data, from services that collect user data to monitor noise pollution and air quality to applications that build maps from people’s cell phone snapshots.

Today, user data provides some opportunities; for example, researchers can use Flickr photos to compile 3-D virtual representations of various landmarks. But even opportunities like these have limits, as researchers are limited to using only photos that people choose to take and share. This creates a significant imbalance: Some geographic areas and landmarks have thousands of Flickr photos, while others have none.

“Take the Lincoln Memorial, for example,” said Fabian Bustamante, associate professor of electrical engineering and computer science at the McCormick School of Engineering. “Flickr has thousands of photos of the front of the Lincoln Memorial. But who takes a picture of the back? Very few people.”

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