“AI has turned every WiFi router into a camera that can work in the dark” • Hacker News Board

Re: “AI has turned every WiFi router into a camera that can work in the dark”

#21

Post by thfuran » Wed, Aug 30, 2023, 6:40 PM UTC

ofrzeta wrote: post #20

smegsicle wrote: post #14

Earlier quoted context omitted.

gait is fingerprintable

Good point. Actually I thought a lot about this without any connection to tech. Because I noticed that we (I) am able to discern people from quite some distance and wondered if there's some evolutionary reason for this.

IFF is probably pretty useful.

Re: “AI has turned every WiFi router into a camera that can work in the dark”

#22

Post by gumby » Wed, Aug 30, 2023, 7:10 PM UTC

This was done before the "AI" hype. More interestingly you can look through walls as well: https://www.technologyreview.com/2018/11/02/239959/using-wi-...

Re: “AI has turned every WiFi router into a camera that can work in the dark”

#23

Post by jondwillis » Wed, Aug 30, 2023, 7:56 PM UTC

tabtab wrote: post #11

I wanna Faraday'd House.

I have 4 routers to bounce signal well enough to use everywhere in a thick plaster(?) ~1000sqft apartment. Am I somewhat ok or do the multiple routers make it worse?

Re: “AI has turned every WiFi router into a camera that can work in the dark”

#24

Post by ikekkdcjkfke » Wed, Aug 30, 2023, 9:08 PM UTC

kumarvvr wrote: post #9

The model only works if the furniture or the room is not modified much. However, it's scary to think the implications. Could we have a camera pointed through a telescope aimed at a window, have a radio receiver outside the said window, and train a model to predict human movements inside a room?

Drone with kali linux. Does some circling to detect it's own sig

Re: “AI has turned every WiFi router into a camera that can work in the dark”

#25

Post by mondayp » Thu, Aug 31, 2023, 4:28 AM UTC

I’ve been warning people about this shit for more than 10 years, ever since Apple bought WIFISlam and made it disappear... haven’t I? And believe me when I say that 5G give them an even clearer picture. We are being watched and listened to 24/7.

Re: “AI has turned every WiFi router into a camera that can work in the dark”

#26

Post by avery17 » Thu, Aug 31, 2023, 12:57 PM UTC

smegsicle wrote: post #14

ofrzeta wrote: post #12

It's not a "camera", you need more than one WiFi device and you can't identify people. Still impressive and scary without the hyberbole.

gait is fingerprintable

Put a rock in your shoe.

Re: “AI has turned every WiFi router into a camera that can work in the dark”

#27

Post by xethos » Thu, Aug 31, 2023, 3:22 PM UTC

teaearlgraycold wrote: post #6

branon wrote: post #3

Every Wi-Fi router, or only routers it's trained on, deployed into rooms it's been trained on with camera footage?

Seems like you'd need to know the geometry of the room in advanced (either by reconstructing it in software or training like they did with a camera).

Or have a near-identical room to train on, and relatively thin walls in between, say, apartment units, to allow the signal through. This won't account for differences in furniture, but I'd imagine, over time, one could filter out and work around static objects.

America's cheap-as-hell apartments could cause even more problems beyond giving apartments a bad rap!

Re: “AI has turned every WiFi router into a camera that can work in the dark”

#28

Post by rapjr9 » Fri, Sep 01, 2023, 2:30 PM UTC

Dina Katabe at MIT is a leader in this area:

https://people.csail.mit.edu/dina/

She's been able to get heart rate, breathing rate, location, and lots more from WiFi signals:

https://www.youtube.com/watch?v=CXy1byguvJY