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[Gizmodo] Wifi Networks Can Now Identify Who You Are Through Walls - Page 3

post #21 of 37
Quote:
Originally Posted by Zen00 View Post

You don't understand, seeing the entire EM spectrum at one time will always be a white blur. You have to select specific wavelengths to see.

Hence the filter.

Take the picture data from visible light, filter and add the useful data from UV, filter and add the useful data from wifi, filter and add the useful data from infrared, filter and add... (ect ect ect).

It would be like adding thermal imaging to a visible light picture. They wouldn't just pass through every bit of thermal image they get and wash out the visible picture because you'd get a blurry mess. Instead they might filter out all but the extreme levels of infrared light, giving a picture that is a normal light picture, but with additional information like the fact that this car engine is hot while this one is normal. Or a picture of a field of grass but with thermal data layered on top in a useful way showing a camouflaged person hiding in the grass.

Now do that with the entire electromagnetic spectrum. That's all I was thinking of.
post #22 of 37
Thread Starter 
Quote:
Originally Posted by SpankyMcFlych View Post

Hence the filter.

Take the picture data from visible light, filter and add the useful data from UV, filter and add the useful data from wifi, filter and add the useful data from infrared, filter and add... (ect ect ect).

It would be like adding thermal imaging to a visible light picture. They wouldn't just pass through every bit of thermal image they get and wash out the visible picture because you'd get a blurry mess. Instead they might filter out all but the extreme levels of infrared light, giving a picture that is a normal light picture, but with additional information like the fact that this car engine is hot while this one is normal. Or a picture of a field of grass but with thermal data layered on top in a useful way showing a camouflaged person hiding in the grass.

Now do that with the entire electromagnetic spectrum. That's all I was thinking of.


We can kind of do that now, but there's parts of the EM spectrum that are blanked out from things, such as the sun. Anyways, the main problem I think is building all the different sensors into one camera.
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post #23 of 37
Quote:
Originally Posted by Just a nickname View Post

It's banned but any metal foil will do. However, unless you don't like day light, you won't be able to block much as EM bounces and will find their way out from the windows (think like it is a wave - because it is).

Multiple companies make window film that block EM waves.
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post #24 of 37
Quote:
Originally Posted by Pip Boy View Post

cool so when this tech goes mainstream, people (crims, pervs and nosey nerds) can point and shoot cameras and watch silhouettes of people in their own homes. Privacy really is going to be dead within 10 years. Governments should start to manage what can and cannot be used in public or by the public & corporations.

Obviously them and whoever pays them enough money to forget about people privacy, just like it's always been.
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post #25 of 37
The average home is so full of 2.4GHz noise that I can't see how this will work well. Actually, if the device can work with any signal (and not just ones that it transmits) then that might be advantageous.

EDIT: I checked the paper and it operates between 5.46GHz and 7.24Ghz. There should be far less noise in that part of the spectrum. So really this has nothing to do with wifi.
Edited by randomizer - 10/29/15 at 1:29am
    
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post #26 of 37
Privacy is not going to improve that the current state. So instead of upgrading your rig, upgrade your house . biggrin.gif
post #27 of 37
Gotta get that wifi blocking paint, especially if your an avid reader of 50 shades.... tongue.gif
    
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post #28 of 37
Time to buy/build myself a "signal noise" generator? Could care less about Wi-Fi anyways, I hardwire my home.
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post #29 of 37
Thread Starter 
Quote:
Originally Posted by Diffident View Post

Multiple companies make window film that block EM waves.


Which is kinda a suckers buy, because the waves will just go through your walls. :/
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post #30 of 37
Quote:
Originally Posted by Zen00 View Post

I'm expecting Faraday cages to be built into the outer walls of houses. tongue.gif

Would probably be a good idea, and have cellular data for outside.

And people lol when I say I have tin foil on my windows.
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