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A new software has been created by scientists at the Massachusetts Institute of Technology. It uses radio signal variations to create and put up visualizations of human silhouettes that can be seen even through opaque walls, according to Digital Trends.

Dina Katabi, a member of the team that has created the technology, explains that the device can look at human movement through walls and also help health care providers and families to check out their children's movements more carefully.

It was back in 2012 that the "X-ray vision" technology started, when the research team just got interested in the concept and its possibility.

"At first we were just interested," she said. "'Can you at all use wireless signals to detect what's happening in occluded spaces, behind a wall, couch?' something like that. 'Could we use it to detect exactly how people are moving in a space if they are behind a wall?'"

The new device uses Wi-Fi signals. It is a sensor in itself, and also utilised the Wi-Fi signal detection in order to manage devices by simply pointing the sensor at them, says the Bangkok Post.

"Think of it just like cameras, except that it's not a camera,'' said Fadel Adib, an MIT researcher working on the device. "It's a sensor that can monitor people and allow you to control devices just by pointing at them."

With a screen, the device displays the radio signal variations that will track a person's movements in real time. It will also display that the target is a "red dot" that is mobile.

Wireless signals can also be harnessed to take measurements of an individual's breathing and heart rate and even locate people just going by their "unique skeletal shapes".

This device is marketed by a company called Emerald, and will be sold in a couple of years at a price between $250 to $300, reports The Daily Mail

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