Countermeasures?
Carry something metallic, so the neural network no longer classifies your reflection as human?
Through-Wall Human Pose Estimation Using Radio Signals
161–170 of 180 posts
Re: Through-Wall Human Pose Estimation Using Radio Signals
#162I'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 interf…
A spectrum analyzer or SDR dongle would tip you off really quickly if there’s active jamming, and the FCC doesn’t play games with those types of violations.
Re: Through-Wall Human Pose Estimation Using Radio Signals
#163The defense applications for this are tantalizing. However, given the staggering amount of room clearing that's been taking place in US military operations for the past 15 or so years, I'd be shocked if there wasn't already an existing capability to detect bad guys through walls in a CQB environment.
>I'd be shocked if there wasn't already an existing capability to detect bad guys through walls in a CQB environment. Existing and exist in a state you can deploy are two totally different things that often happen many years apart. Usually something exists as an impractical wish list item for a long time before some other development pushes it into the realm of being practical to use.
Yeah, it's just that western special operations kick in so many doors on a daily basis that one would think such tech would be fast-tracked.
Re: Through-Wall Human Pose Estimation Using Radio Signals
#164The paper [1] doesn't show the antennas, but the text seems to indicate the antennas are quite large, as large as the area being observed. Plus, you have to have two perpendicular axes of antenna, so you have to be behind two walls, or one wall and a floor or ceiling. That's a big setup.
It might be useful if you wanted to count people in a crowd going in and out through a big opening, like a subway station or mall.
[1] http://openaccess.thecvf.com/content_cvpr_2018/papers/Zhao_T...
Re: Through-Wall Human Pose Estimation Using Radio Signals
#165I'll repeat it again. - Machines that see through walls are coming - Microscopic drones are coming - Mind-reading machines are coming - Private key cryptography will become obsolete Fighting for privacy is backward. It's unsustainable. We must work toward a post-privacy world. The sooner we do it, the smoother the transition will be.
Describing the exact same inevitable phenomena as "The Age of Transparency" is probably going to elicit a better response from most people. "Post Privacy" is negatively charged and makes it sound like more of a net loss as opposed to progress.
But they're the same thing. You can't get rid of the negative consequences just by using a different term.
Re: Through-Wall Human Pose Estimation Using Radio Signals
#166Earlier quoted context omitted.
Yeah, I think it's more what lgats suggested, and simply that they have a naturally impermeable building in the middle. Not even the cabinets, more the metal shelving up to the ceiling and such. I also notice that my current phone does a terrible job of falling back on the much more long distance 3G, so maybe that's part of it.
> Yeah, I think it's more what lgats suggested, and simply that they have a naturally impermeable building in the middle. That kind of contradicts the OP... since they said that it was only recently that the signal stopped working, and that the building was not being remodeled during that time. So if the building is now impenetrable then something changed. Maybe modern phones just have a horrible time falling back fr…
I was the OP...
I noticed this recently, but cell towers get upgraded/replaced at intervals unrelated to "nationwide rollout of LTE!" from carriers.
Re: Through-Wall Human Pose Estimation Using Radio Signals
#167Earlier quoted context omitted.
This isn’t something AT&T can force, afaik. Two things: 1. Go to Settings > WiFi and turn Ask to Join Networks ON. 2. Any time you are auto-connected to a network and don’t want to do that again, go to Settings > WiFi, tap the blue info icon next to the currently active wifi network, and then tap Forget this Network when the details show up. Ask to Join Networks is usually off by default. That means your phone will a…
Thank you (for those who don’t know) but I’ve already done that multiple times. I’ve reset network settings. I’ve done crazy voodoo with restarts, airplane mode, etc. It’s possible that it’s been “fixed” in subsequent iOS updates. I haven’t tried recently.
Do you have a Mac or iPad that it might be pulling the settings off of?
Re: Through-Wall Human Pose Estimation Using Radio Signals
#168Great. More murder tech. There's always funding for murder tech.
Re: Through-Wall Human Pose Estimation Using Radio Signals
#169Earlier quoted context omitted.
> Yeah, I think it's more what lgats suggested, and simply that they have a naturally impermeable building in the middle. That kind of contradicts the OP... since they said that it was only recently that the signal stopped working, and that the building was not being remodeled during that time. So if the building is now impenetrable then something changed. Maybe modern phones just have a horrible time falling back fr…
I was the OP... I noticed this recently, but cell towers get upgraded/replaced at intervals unrelated to "nationwide rollout of LTE!" from carriers.
Why you contradict yo self...
Re: Through-Wall Human Pose Estimation Using Radio Signals
#170With this paper our last shreds of privacy are being taken away, but they presented the news with nice background music, so there's that.
Guess you shouldn't read about what synthetic aperture radar systems have been able to do for decades... you can actually make a ghetto radar capable of capturing the data used for this demo with about $350 (in 2012) in materials. But don't worry too much. Their limitations section states that "the operating distance of a radio is dependent on its transmission power" so their system only works reliably up to 40 feet,…
It's because of the distance limitation that it will be used for medical purposes mostly, methinks.