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Through-Wall Human Pose Estimation Using Radio Signals

rfpose.csail.mit.edu

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Re: Through-Wall Human Pose Estimation Using Radio Signals

#41

Post by sudhirj »

gohwell wrote: post #20

Does it only detect moving bodies?

Depends on the training data and the room config. The system sees a difference in an empty vs occupied room, movement doesn’t seem to be strictly necessary. The heat map video looks more like radio spectrum signatures, which might even be working on still frames - which would imply that movement isn’t necessary at all. It would help the AI, though. Easier to classify moving bodies, the speed and gait is a signal.

Re: Through-Wall Human Pose Estimation Using Radio Signals

#43

Post by wcunning »

I've noticed, recently, that literally every major chain store I go into blocks my cell signal. I get full bars outside, perfect LTE, and about 5 ft past the glass doors, I'm suddenly cut off. Specifically, Meijer grocery stores and Home Depot are the worst offenders. Coincidentally they offer free in store WiFi to track me with, so I turn off my wifi radio on both smartphone and smartwatch before walking in the door... Note, this was not the case in the exact same physical stores a couple years ago, and they weren't closed for remodeling in the interim.

Does anyone know if this sort of Faraday cage technology for large buildings is easily available for me to install in my own home? If so, what's it called, what does it cost and where do I get it?

Re: Through-Wall Human Pose Estimation Using Radio Signals

#45

Post by mLuby »

warent wrote: post #27
sudhirj wrote: post #6

Love it. This is a game mechanic / movie superhero device that's been around a long time, just love the fact that this does it so simply and with so much promise. As sensitivity and the quality of the neural net increases, combined with AR, this is going to make super soldiers out of SWAT teams.

Was just thinking that this reminds me of the alien weapon in Perfect Dark: https://youtu.be/8DlVQ6OjRcA?t=6s

Pretty common in games actually:

- Deus Ex: Human Revolution https://www.youtube.com/watch?v=3WoaLJ10ZB8

- GoldenEye: Rogue Agent https://youtu.be/EV8xxZec4j8?t=6m39s

Re: Through-Wall Human Pose Estimation Using Radio Signals

#46

Post by bufbupa »

visarga wrote: post #7

With this paper our last shreds of privacy are being taken away, but they presented the news with nice background music, so there's that.

Meh, that seems a little sensationalist. Any significant metal would likely throw this in a loop. You could even buy paint with graphite in it to block weak RF signals outright. IIRC most military bases and data centers protect against this sort of leakage.

Re: Through-Wall Human Pose Estimation Using Radio Signals

#49

Post by lgats »

wcunning wrote: post #43

I've noticed, recently, that literally every major chain store I go into blocks my cell signal. I get full bars outside, perfect LTE, and about 5 ft past the glass doors, I'm suddenly cut off. Specifically, Meijer grocery stores and Home Depot are the worst offenders. Coincidentally they offer free in store WiFi to track me with, so I turn off my wifi radio on both smartphone and smartwatch before walking in the door…

I believe you can achieve the same result in your home by adding a sheet metal roof, metal cabinets, and refrigerators along every wall.

Re: Through-Wall Human Pose Estimation Using Radio Signals

#50

Post by strombofulous »

wcunning wrote: post #43

I've noticed, recently, that literally every major chain store I go into blocks my cell signal. I get full bars outside, perfect LTE, and about 5 ft past the glass doors, I'm suddenly cut off. Specifically, Meijer grocery stores and Home Depot are the worst offenders. Coincidentally they offer free in store WiFi to track me with, so I turn off my wifi radio on both smartphone and smartwatch before walking in the door…

FWIW, if they are intentionally (or unintentionally) blocking your cell signal with an electronic signal (And since you mentioned that they didn't remodel, this is the only way they could feasibly do it), they're breaking a very serious FCC law - https://www.fcc.gov/general/jammer-enforcement.

I know that the FCC is kind of regarded as a joke lately, but this is a law they take pretty seriously as jammers can interfere with E911 calls. It would just take one emergency that 911 couldn't respond to for the FCC to realize what was going on, and no large store is going to take those odds. It's likely something else.

That said, if you really believe that they are blocking cell signals, you should probably file a tipoff, as they could honestly be putting lives at risk (go to https://consumercomplaints.fcc.gov/hc/en-us and click "phone"). As far as I know there's no penalty if you are wrong (as long as you honestly believe there might be an active jammer in the area and you aren't abusing their system somehow), worst case you'll get a call confirming they don't use one.

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