'Naked' X-ray scan at Heathrow airport
- Thread starter Deepak
- Start date
Deepak said:
Is it really an X-Ray? About 2 years ago there was news report that Heathrow airport was experimenting with infrared cameras to detect concealed weapons. That also had the effect of the old, magic "X-Ray" glasses. When demonstrating it, the reporter was very careful to keep hands and arms strategically placed to maintain her modesty.
Simon F said:
Was this the story about using terahertz radiation (which is between microwave and FIR)? I wasn't sure from the mickey-mouse press coverage whether this was passive IR (like a thermal imager) or active (eg. a very short-wavelength radar), but if the images are as detailed as the story suggests, it sounds like the latter.
ill second that. When was the last time that Keira Knightley went thru Heathrow.Leto said:Pictures please?
epic
Didn't some of the early digital cameras "suffer" from this problem? I believe there especially was a high end camera with a night vision mode that could see through thin clothes under the right circumstances. When that was pointed out to the manufacturer, it was pulled from the market. Then they added some IR filter to it, and/or changed when that mode could be used.
I know I saw some papparazzi fotos from that camera, but I don't remember what manufacturer and model it was.
I know I saw some papparazzi fotos from that camera, but I don't remember what manufacturer and model it was.
Captain Chickenpants
Regular
I think this is a bit of an Urban Myth. Yes under very specific lighting conditions and some clothes this is an issue, but only very specific conditions. Modern digital cameras can still see into the near IR. Simply point a tv remote control at your camera and look at the display as you press buttons and you can see the remote controls IR led flashing. You can take some quite interesting photos if you stick an IR filter (i.e. one that blocks everything except IR, never really happy with using that naming convention) on a digital camera.
CC
Deepak said:
I'd like to see exactly how "random" their selection process is, if perhaps men with dark skin and beards and/or turbans feature more often than for example pale-skinned women.
I'd also like to know what the "automatic hand search" entails, and the exact legal basis such a search rests on. In Sweden, only police are allowed to do a body search, and if an actual suspicion of a crime exists as I recall. I sure know I'd absolutely refuse to cooperate with something as intrusive as either a 'naked' scan or a body search.
Innocent until proven guilty don't mesh with either of these methods.
You can find more info about this on The Register:
The machine is likely to be a Rapiscan 1000 scanner.
The machine is likely to be a Rapiscan 1000 scanner.
actually, there are ways of using IR to get a surprisingly accurate picture of a person under their clothes. it doesnt work with all clothes, though. only some. it's quite incredible to see. 8) (and this is been out for a few years now... shit i love those things... and, trust me, they aren't an urban legend... I myself have personally seen them in action)
We've heard about tin-foil HATS in this forum, but tin-foil suits?
So the Rapiscan IS x-ray.... nice. So combining that with the extra radiation recieved on the flight, you should be "well done" by the time you arrive at you destination.
Judging from the link on The Register, the "infra-red" one I was thinking of was probably this device. It is completely passive. By chance that was shown on the BBC two days ago as a means of scanning trucks for illegal immigrants.
Judging from the link on The Register, the "infra-red" one I was thinking of was probably this device. It is completely passive. By chance that was shown on the BBC two days ago as a means of scanning trucks for illegal immigrants.
I wrote this yesterday, but when I hit the 'Submit' button, our net had gone down, and was down for the rest of the day. What are you supposed to do at work if the net isn't working? :?
Captain Chickenpants:
It might be so, but then there was a few well photoshopped images floating around at the time they released that (imaginary) camera. People didn't look naked, but it looked like their clothes were semi-transparent.
Current cameras do have IR-blocking filters, they djust don't block all IR.
Btw, what's wrong with calling a IR-pass filter just IR filter?
If somebody talked about a blue filter, I would think of a filter that looks blue, ie let's through blue light.
Now, where can I find a IR filter to do some experimenting? (No, I'm not going to be naughty.)
[Added after reading some more posts]
It seems that sage can confirm that such cameras do exist.
Simon F:
They say the radiation from one scan is equivalent to ~1 minute of flight, so it doesn't seem to make much difference.
What are you supposed to do at work if the net isn't working? :? Captain Chickenpants:
It might be so, but then there was a few well photoshopped images floating around at the time they released that (imaginary) camera. People didn't look naked, but it looked like their clothes were semi-transparent.
Current cameras do have IR-blocking filters, they djust don't block all IR.
Btw, what's wrong with calling a IR-pass filter just IR filter?
If somebody talked about a blue filter, I would think of a filter that looks blue, ie let's through blue light.
Now, where can I find a IR filter to do some experimenting? (No, I'm not going to be naughty.)
[Added after reading some more posts]
It seems that sage can confirm that such cameras do exist.
Simon F:
They say the radiation from one scan is equivalent to ~1 minute of flight, so it doesn't seem to make much difference.
