For easy explanation, parts that are difficult for the general public to read are boldly omitted
Just read it for fun
Introduction
Researchers at Carnegie Mellon University in the U.S. are the only ones who have ever been
3 Wi-Fi routers
by means of
I can see the behavior of the person beyond the wall
It develops artificial intelligence deep learning technology that can do it
Previously, RGB images were studied as cameras used for autonomous driving or detection sensors in front of radar LIDAR serving robots, but RGB images are a common camera that we know, so of course, they can’t see through walls
However, through this study, we can detect the behavior of people over the wall with only three Wi-Fi routers available at local E-Mart
methodology
0
Three WIFI transmitters
Wow
3 receivers over the wall
a situation in which exists and various people and objects are freely placed
Electromagnetic waves from 13 transmitters are refracted to and from people and objects and then entered into 3 receivers
2
Transmitter output value
Department
Receiver Inputs
in combination of
Amplitude data
Topological Data
Conversion to
For a detailed methodology, refer to the original text of the paper and understand that the CSI tensor was used
3
Amplitude data and phase data
using the encoding-decoding deep learning model
Convert to RGB image form
box
derived from four
RGB Image Features
Human Pose Estimation Input to Deep Learning Model
Detect human joints and arms and legs
I made it
5 Transfer Learning is used to improve accuracy
Simply put, it learns a Wi-Fi-based model based on a high-performance human detection model based on an existing RGB image
Result
a hell of a thing
It can be seen that even the joints of a person’s presence or absence are neatly detected
However, the paper states that the detection accuracy of more than four people is somewhat inferior
As AI technology advances further in the future, hundreds of people are expected to be able to detect through the walls
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Link to thesis
httpsarxivorgpdf230100250pdf
Personally, it’s the first technology I think will be used for military purposes