MIT researchers use WiFi to recognize people behind walls

Wi-Fi logoEver wish you had superpowers that allows you look through solid objects? Turns out that we don’t really need superpowers to do that. The folks at MIT have recently come up with a way that can sort of let you do that, and that is by harnessing the power of WiFi which in turn allows the computer to identify the person behind a solid object like a wall.

How does it work? The concept is actually pretty simple. Basically the device will send out WiFi signals from one side of the wall. The signals will then hit the person behind the wall and those reflections will be captured by the device, and then sent to a software to be cleaned up in which a rough shape of the person’s body can be seen.

Now this only gives us a clue that a person is behind the wall, but how does it identify who it is? Speaking to Gizmodo, one of the researchers by the name of Fadel Adi explains that by using machine language, the algorithms can spot subtle differences in body shapes, which in turn will allow it to identify one person from another.

According to Adi, “[W]e use the captured human silhouettes from our reconstruction algorithm to train a classifier on these silhouettes which allows us to distinguish between people. The classifier captures features like height and body builds, which allows us to distinguish between people using RF-Capture.”

As far as its uses are concerned, the team envisions how it could be used as a nursing tool for the elderly. For example it could be placed in homes of the elderly and will keep scanning for them, and should it detect that they have fallen over, it could even be programmed to call 911 on their behalf.

Source: Ubergizmo

Tags: technologies, Wi-Fi

Add comment

Your name:
Sign in with:
Your comment:

Enter code:

E-mail (not required)
E-mail will not be disclosed to the third party

Last news

Galaxy Note10 really is built around a 6.7-inch display
You may still be able to download your content
Facebook, Messenger and Instagram are all going away
Minimize apps to a floating, always-on-top bubble
Japan Display has been providing LCDs for the iPhone XR, the only LCD model in Apple’s 2018 line-up
The 2001 operating system has reached its lowest share level
The entire TSMC 5nm design infrastructure is available now from TSMC
The smartphone uses a Snapdragon 660 processor running Android 9 Pie
The Samsung Galaxy A5 (2017) Review
The evolution of the successful smartphone, now with a waterproof body and USB Type-C
February 7, 2017 / 2
Samsung Galaxy TabPro S - a tablet with the Windows-keyboard
The first Windows-tablet with the 12-inch display Super AMOLED
June 7, 2016 /
Keyboards for iOS
Ten iOS keyboards review
July 18, 2015 /
Samsung E1200 Mobile Phone Review
A cheap phone with a good screen
March 8, 2015 / 4
Creative Sound Blaster Z sound card review
Good sound for those who are not satisfied with the onboard solution
September 25, 2014 / 2
Samsung Galaxy Gear: Smartwatch at High Price
The first smartwatch from Samsung - almost a smartphone with a small body
December 19, 2013 /

News Archive



Do you use microSD card with your phone?
or leave your own version in comments (15)