Using WiFi to "see through walls" and follow community
when they're moving could be a fresh feature on your new smartphone, if MIT
researchers contain their technique with a low-cost method of tracking relying
on the wireless connectivity cooked up in their labs. The scheme, dubbed Wi-Vi,
repurposes WiFi in a parallel method to sonar or radar, pinging out radio waves
and then tracking how they're bounce back. Since WiFi can go by through walls,
so Wi-Vi can give a quick look of what's happening throughout barriers, albeit
with a few limitations.
For the rest of us, just as action gaming technologies similar
to Kinect and Wii have taken off, thus the Wi-Vi team believes there's scope
for the scanning method in games and entertainment. That can include controller
that can see "through" other group of players, or that don't
have
full line-of view.
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