Seeing through walls using wireless signals

A team of researchers at MIT’s Computer Science and Artificial Intelligence Lab has unveiled new technology, called RF Capture, that picks up wireless reflections off the human body to see the silhouette of a human standing behind a solid wall.

By tracking the silhouette, the device can trace a person’s hand as he writes in the air, and even distinguish between 15 different people through a wall with nearly 90% accuracy.

In other words, from the opposite side of a building, RF Capture can determine where you are, who you are, and which hand you are moving.

Researchers say the technology could have major implications for everything from gaming and filmmaking to emergency response.

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