Scientists use Wi-Fi routers to see humans through walls; Researchers demonstrate how Wi-Fi can be used for monitoring - and why it might actually be a good idea. ("good idea"??!?)

ZD net ^ | January 23, 2023 | Liam Tung

[DoodleBob]

Scientists from Carnegie Mellon University have developed a cheap way to sense humans through walls by using two Wi-Fi routers to image a human's 3D shape and pose.

The researchers outline in a new paper how they used a deep neural network called DensePose that maps Wi-Fi signals (phase and amplitude) to UV coordinates, which is when a 3D model's surface is projected to a 2D image for mapping a computer-generated image.

DensePose was developed by researchers at Imperial College London, Facebook AI, and University College London.

The Carnegie Mellon researchers' key achievement with DensePose, first reported by Vice, is that they can accurately map multiple subjects' poses with an off-the-shelf 1D sensor -- Wi-Fi antennas -- rather than expensive RGB cameras, LiDAR, and radars. Also, they were able to use Wi-Fi to sense humans and their pose, rather than just being able to only accurately locate an object in a room.

"The results of the study reveal that our model can estimate the dense pose of multiple subjects, with comparable performance to image-based approaches, by utilizing Wi-Fi signals as the only input. This paves the way for low-cost, broadly accessible, and privacy-preserving algorithms for human sensing," researchers Jiaqi Geng, Dong Huang, and Fernando De la Torre explain in their paper, DensePose From WiFi.

The researchers ague that their Wi-Fi approach to imaging humans in households could be applied to home healthcare, where patients may not want to be monitored with a camera in places like the bathroom or with other sensors and tracking devices.

Importantly, the Wi-Fi-monitoring system is not impacted by poor light or obstructions, such as walls. Also, it requires a very cheap setup, using equipment most people have at home already. The two TP Link Wi-Fi routers used in the study cost about $30 each, versus around $700 for the most common LiDAR.

"We believe that Wi-Fi signals can serve as a ubiquitous substitute for RGB images for human sensing in certain instances. Illumination and occlusion have little effect on Wi-Fi-based solutions used for interior monitoring. In addition, they protect individuals' privacy and the required equipment can be bought at a reasonable price," the researchers write.

"In fact, most households in developed countries already have Wi-Fi at home, and this technology may be scaled to monitor the well-being of elder people or just identify suspicious behaviors at home."

As the researchers note, there is a lot of literature on detection, tracking, and dense pose estimation from images and video, but very little on the subject of human pose estimation from Wi-Fi or radar.

[DoodleBob]

[Roman_War_Criminal]

The BEAST SYSTEM continues to move forward as planned.

[Libloather]

Could be fun.

[BenLurkin]

"identify suspicious behaviors at home."

[Revel]

I bet it is worthless for an old metal mobile home or a metal building.

[ridesthemiles]

I did without the internet for over 65 years of my life-—I can do so again.

[xenia]

“and privacy-preserving algorithms for human sensing,”
____________________

Are they kidding?

and “The researchers ague that their Wi-Fi approach to imaging humans in households could be applied to home healthcare,”
Always the same justification....something medical.

[OSHA]

"I did without the internet for over 65 years of my life-—I can do so again."

Wanna bet? (Not that I would be around to collect.)

[Georgia Girl 2]

Well if they’re watching me I’m on the couch eating a yahoo candy bar and scrolling FR. Pretty boring. 😏

[sauropod]

.

[Paperpusher]

Forget WiFi, I still have Cat 5e cable in my house. I can go back to a cable and 1 GBPS. Though I will need an adapter.

[SaveFerris]

Fix that cushion!!

😜

[conservativeimage]

I’ve not seen one video that effectively demonstrates this but do you think NordVPN will protect me from it? jk

[Vaduz]

Wondered why my telephone land line sounded different.

[Long Jon No Silver]

Or ‘For the children’ or ‘For the common good’. There won’t be anywhere to hide from Health Nazi Super State. But eventually the leaders of this oppressive entity will themselves have no place to hide. He who comes on the clouds will see them in their caves without a problem

[Georgia Girl 2]

😮

[Albion Wilde]

Related:

Researchers Develop a Device That Can Use WiFi To See Through Walls
https://scitechdaily.com/researchers-develop-a-device-that-can-use-wifi-to-see-through-walls/

[TexasGator]

Did you bother to read the article?

I can see it to also be a life saver. Consider an person in elder care.

This system could bring help if the person falls and cannot get up.

And it would be great for detecting home invaders.

[xenia]

“will themselves have no place to hide. He who comes on the clouds will see them in their caves without a problem”
___________________________

Amen

[Long Jon No Silver]

Remember, the enemy of God is called ‘The Prince of the power of air (waves). The Liar harnesses the invisible workd of wi fi and other bandwidths to ensnare, hoodwink and enslave the sheeples who listen. The rogue sheep are tuning into a different Shepherd who know the Liar is a wolf in sheep’s clothing. Wi Fi etc are small beer when compared to the tools that God has to pierce all structures and living things. Think muons on steroids