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Terahertz Imagery Progresses

ke4roh writes "Since Slashdot last discussed terahertz imaging, the European Space Agency's Star Tiger project has taken terahertz images of a human hand. Some of the pictures show just how useful the imagery might be for peering through walls and such - one of the images is through a 15mm pad of paper." The EE Times has another story.

58 of 270 comments (clear)

  1. Terehertz Specs by EvilSporkMan · · Score: 5, Funny

    I predict the #1 use for this technology will eventually be peeking through woman's clothes.

    --
    -insert a witty something-
    1. Re:Terehertz Specs by guido1 · · Score: 3, Funny

      I predict the #1 use for this technology will eventually be peeking through woman's clothes.

      Unfortunately, they prototyped it by peeking through a guys clothes, so it may never catch on.

      See the image and avi here...

    2. Re:Terehertz Specs by greechneb · · Score: 4, Funny
      Seeing through clothing might be an option, but did they have to use this guy?

      picture

      video

    3. Re:Terehertz Specs by Anonymous Coward · · Score: 3, Funny

      At least the guy had big tits tho.

    4. Re:Terehertz Specs by dirvish · · Score: 2, Insightful

      Yeah, I definately need a terehertz imaging equipped video camera!

      I have heard that video cameras with really good low light (zero lux?) capabilities can see through thin layers of clothing. Haven't tried it myselft though.

    5. Re:Terehertz Specs by dirvish · · Score: 2, Funny

      but then, why would one want to PEEK under woman's clothes.... when you can have the real thing?

      Are you coming on to me?

    6. Re:Terehertz Specs by u19925 · · Score: 2, Interesting

      much simple solution exist for peeking through women's clothes. remember sony camcorder night vision mode? if used in day time and if a woman is wearing tight clothing which is transparent to IR light, then that IR light gets reflected by your body. So by using an IR filter, you can almost see through. Sony removed this feature in new camcorders (they added a sensor, so it can't be used in day light. i guess, it can still be fooled. also, there is some rumor that they changed the CCD chip somewhat). This was all sometime in 97-98.

  2. Woohoo! by d3kk · · Score: 3, Funny

    No more wishing for x-ray vision. Woman's locker room here I come!

  3. Imagine... by MisterFancypants · · Score: 4, Funny

    Imagine a Beowulf cluster of these taking pictures of Natalie Portman.

    1. Re:Imagine... by rhombic · · Score: 2, Funny

      But can it image through hot grits?

      --
      1984 was supposed to be a warning, not an instruction manual.
    2. Re:Imagine... by Dark+Lord+Seth · · Score: 2, Funny

      What pants?

  4. I can just see the spam now... by minektur · · Score: 3, Insightful

    "x-ray goggles" based on REAL SCIENCE!!!!!

    See what is going on at your neighbors house!

    Protect yourself from armed muggers! ....

    1. Re:I can just see the spam now... by dirvish · · Score: 3, Funny

      You could see if your neighbor is plotting against you and then preemtively strike him.

      Protect yourself from armed muggers! .... Not sure how that would work. You would probably get pretty tired running away from every armed person, depending on where you live.

  5. Great by LordKaT · · Score: 5, Funny
    A news story about images . . . and no images!


    --LordKaT

    1. Re:Great by LordKaT · · Score: 2
      Well looks like Im going to get abused for this but . . .

      I was talking about the ZDNet article, dagnabit!

      --LordKaT

  6. Yea but... by welthqa · · Score: 4, Funny

    In Alias the terahertz camera could see thru 30 meters of earth.

    --


    100% Pure Evil With The Look And Feel Of Wholesome Goodness
    1. Re:Yea but... by martissimo · · Score: 3, Funny

      When you have Jennifer Garner filling the screen in various states of undress, basic physics is really not all that important ;)

    2. Re:Yea but... by Anonymous Coward · · Score: 2, Funny

      In Alias the terahertz camera could see thru 30 meters of earth.

      Well, it's just a TV show. It's not accurate. If it was real life, they'd be pointing it at Jennifer Garner.

  7. Practical Application by BoomerSooner · · Score: 5, Interesting

    Airport screening. This reminds me of the airport in Total Recall where Arnold had a gun. Very cool. 4th Amendment notwithstanding.

    1. Re:Practical Application by Arcturax · · Score: 5, Funny

      They are already working on those for airports. In a way, I will feel sorry for them having to see me naked just so I can get to my plane faster.

      --

      --Won't that be grand? Computers and the programs will start thinking and the people will stop. - Dr. Walter Gibbs
    2. Re:Practical Application by Rolo+Tomasi · · Score: 2, Insightful

      Furthermore, having goggles using this technology would be a killer advantage in urban and close quarters combat. Wallhack in reality, nowhere to hide! These sensors are manufactured in solid state technology, so power consumption and size would be no problem (comparable to CCDs, I assume).

      --
      Did you know you can fertilize your lawn with used motor oil?
    3. Re:Practical Application by JDWTopGuy · · Score: 3, Funny

      Maybe, but some of us geeks who live on pizza and cola (or beer, whatever) and never work out might get through a lot faster!!!

      Besides, why would you need a strip search if you're already seeing them naked?

      --
      Ron Paul 2012
  8. anything by Anonymous Coward · · Score: 2, Insightful

    that's cool. What sort of astrnomy can be done with this?
    fp?

  9. Thermal imaging by Adam9 · · Score: 4, Interesting

    Snip of some info from the tiger page:

    Terahertz imaging can be achieved by observing the natural terahertz waves emitted by pretty much everything. Unlike light, terahertz waves are able to propagate through cloud and smoke providing a powerful advantage for certain remote sensing measurements. From a practical aspect they are also able to pass through windows, paper, clothing and in certain instances even walls.

    Sounds like thermal imaging on steroids. Eventually, would this become the standard military surveillance method that could be used on a UAV in enemy or (god forbid) domestic airspace?

    1. Re:Thermal imaging by mmol_6453 · · Score: 2, Interesting

      Using an IR camera, a firefighter can see animated fire behind a sheet of 1/2" drywall.

      --
      What's this Submit thingy do?
    2. Re:Thermal imaging by t_little · · Score: 2, Informative

      Sounds like thermal imaging on steroids

      It is thermal imaging. Terahertz waves are at the low end of the far-infrared region of the spectrum. They are produced by thermal radiation of all objects warmer than liquid helium temperature.

      --

      -- Tim Little

  10. Imagine.... by Anonymous Coward · · Score: 2, Funny

    What the porn industry can do with this! No more fake celbrity nude photos!!

  11. Old news by redbeard_ak · · Score: 4, Funny

    These things have been available in comic books for years.

    --
    . This sig unintentionally left blank. I meant to put something here, but I'm busy.
    1. Re:Old news by RobertKozak · · Score: 2, Funny

      I've been looking at the bones of my hand since I was a kid just by using a simple flashlight.
      -- Offtopic, Inflammatory, Inappropriate, Illegal, or Offensive comments might be moderated.

      --
      Bet this .sig looks familiar.
  12. Oh great by creative_name · · Score: 5, Funny

    As if the black car sitting outside my house wasn't enough, now I have to deal with this kind of government surveillance too!? At least now I know where they got the pictures of my Anti RIAA boxers from...

    --
    Posting as directed.
  13. useless by steelerguy · · Score: 5, Funny

    until you can make out a nipple...

    1. Re:useless by broken.data · · Score: 2, Funny

      Prior Art is revealed: Scrambled Cable Pr0n

  14. moths by greechneb · · Score: 4, Funny

    According to the article, the frequencies are used only certain moths. It also talks about using the frequency to carry terabit wireless networks...

    Does this mean that that I could use the wireless network to create swarm of attack moths that can see through reams of paper.

    I can finally overtake the pointy haired boss and rule the office!

  15. TeraHertz Donut. by Limburgher · · Score: 2, Funny
    I can see this coming soon in grade schools nationwide.

    A: "Wanna TeraHertz Donut?"

    B: "Sure!"

    A Hits B

    B: "Ow!"

    A: "TeraHertz, Donut?"

    --

    You are not the customer.

  16. I wonder... by Anonymous Coward · · Score: 2, Funny

    What kind of engineering is required to make the 'lead underwear' required to block these. Certainly not a simple tinfoil hat.

  17. Can see through clothing... by $$$$$exyGal · · Score: 4, Funny
    ... the project has also released pictures of the human body imaged through clothing.

    Where are those pictures ;-)? Weren't there some night-vision camera's that also did that?

    --sex

    --
    Very popular slashdot journal for adul
    1. Re:Can see through clothing... by bm_luethke · · Score: 2, Informative

      The night vision glasses only worked on white clothing. It enabled both the thermal imaging and light gathering source open at the same time. This had the affect of taking the normal light image (so they looked like a person) plus the underlying form (the thermal imaging portion). Looked like a 3D model with only a single texture apllied to the model (I.E. all flesh tone, not, ummm, other colors (at work, nothing more will make it through the censors :) ). While not truly see through, it did look pretty good :P

      --
      ------- Sorry about the spelling, I suffer from two problems. Dyslexia makes it difficult to spell well, lazy makes it
  18. Is it just me, by xercist · · Score: 5, Insightful

    or does the repeated use of the "St(PICTURE OF A STAR)rTiger" logo on the pictures page make the whole thing look considerably less like a professional research project?

    --

    --
    grep "xercist" /dev/random ...you'll find me in there someday
  19. Apple. by Daleks · · Score: 4, Funny

    Just wait, by tomorrow morning Apple will have an article on their webpage about the "Terahertz Myth." Soon afterwards AMD will release the Athlon XP 1100000+, but it will really run at 700000 Mhz.

    Posted from Mac OS X.

  20. Great. by Anonymous Coward · · Score: 2, Funny

    Now I have to deal with wallhackers outside of Counter Strike.

  21. Also recently discovered by Anonymous Coward · · Score: 3, Funny

    An image of a hand in the 430-750 trillion Hz range shows remarkably more clarity than the new technology!

  22. It's passive. by dark-nl · · Score: 4, Informative

    The picture of the hand, at least, was taken using just the rays the hand emits naturally.

  23. Good to see some constuctive devices being made by Neophytus · · Score: 4, Interesting

    A device that can be used to see through walls has potential anti-terrorism uses, and if tweaked it could probably be used as a replacement for the mildly-dangerous xray technology. Also being able to be used for communications, this is a step in the right direction for research into radio technologys.

    1. Re:Good to see some constuctive devices being made by jratcliffe · · Score: 2, Informative

      There are already systems that can see through walls, using UWB. Not _exactly_ the same thing, but pretty cool, nonetheless: http://www.businessweek.com/technology/content/oct 2002/tc20021017_4359.htm

  24. Ugh... by da3dAlus · · Score: 3, Funny

    Imagine the X10 camera ads this will bring forth...

    --

    Sometimes I doubt your commitment to Sparkle Motion.
  25. Um... by Elwood+P+Dowd · · Score: 4, Funny

    From the article:

    Everything gives off terahertz radiation naturally, and like radio waves -- but unlike heat or light -- the waves can pass through some solid objects.

    Light waves can't pass through solid objects? Except, you know, glass. Or clear plastic. Visible light can't pass through things that are opaque, moron. That's why they invented the damn word in the first place.

    --

    There are no trails. There are no trees out here.
  26. Dude by Exiler · · Score: 5, Funny

    Locker room, they're already naked!

    --
    Banaaaana!
    1. Re:Dude by Yorrike · · Score: 5, Interesting

      You'll want one of these then.

      --

      Looks can be deceiving. Or CAN they?

  27. Interesting medical applications by chrae · · Score: 2, Interesting
    When this becomes more developed this could lead to less of a need for Doctors to use exploritative surgery to see what is going on in the deep tissues. To find things such as torn tissues or tumors.

    And from what I understand from the article, TeraHertz radiation is something that objects emmit naturally. So I'd assume devices using this technique would not be exposing you to radiation, as X-rays do.

    Security checkpoints might adopt this also. Airports currently use x-rays which can be damaging to high speed film and has other negative issues also. The article mentioned that certain chemical characteristics could also be gleaned from an imaging system such as this, since the object itself (and the chemicals it contains) is the thing emmitting the radiation. Possibilities include detecting explosives and drugs.

    Also, just as a side note, the pictures of a human body through clothing referred to in the article are of some fat guy with flabby tits. View at your own risk.

  28. That's nothing by Anonymous Coward · · Score: 2, Funny

    MacGyver built a teraherz camera out of a banana peel and a rubber band.

  29. Inkjet fabrication instead of photolithography? by mikeophile · · Score: 2, Interesting

    It seems like it would be a much easier and cheaper way of producing the Thz waveguide antennae.

  30. Re:Practical Application-"Super" man. by Anonymous Coward · · Score: 3, Insightful

    Well don't forget. For every action there's a reaction. I predict lead undies will become popular.

  31. It's not actually THz... by JRHelgeson · · Score: 2, Informative
    The article actually states that the camera is imaging at the 0.2THz to 0.3THz - which means that they're operating at 200-300GHz.

    Thats like Intel stating they broke the Gigahertz barrier when they reached 300 MHz processor speeds (or rather 0.3GHz).

    --
    Good security is based upon reality and common sense. Common sense is a function of having common knowledge.
  32. Conservative SCOTUS ruled against thermal imaging by Artifice_Eternity · · Score: 4, Informative
    It's possible that Ashcroft will seek the use of this and other types of remote imaging technology in the future. But for now, he can't use them without a warrant.

    Surprisingly, the Supreme Court ruled last year -- in an opinion written by Scalia (conservative) and joined by Souter (moderate) and Thomas (conservative), as well as Ginsburg and Breyer (both liberal) -- that the use of thermal imaging to detect marijuana grow lamps inside a house was illegal:
    The District Court [had previously] ruled that the thermal imaging device "is a non-intrusive device which emits no rays or beams and shows a crude visual image of the heat being radiated from the outside of the house"; it "did not show any people or activity within the walls of the structure" it "cannot penetrate walls or windows to reveal conversations or human activities"; and "(n)o intimate details of the home were observed."

    The Court of Appeals initially reversed this ruling, but reversed itself, ruling that Kyllo has shown no expectation of privacy because he had made no attempt to conceal the heat escaping from his home, and even if he had, there was no reasonable expectation of privacy because the imager "did not expose any intimate details of Kyllo's life," only "amorphous 'hot spots' on the roof and exterior wall."

    The U. S. Supreme Court reversed the decision of the Court of Appeals. Justice Scalia's decision pointed out that the Fourth Amendment provides that "(t)he right of the people to be secure in their persons, houses, papers, and effects, against unreason able searches and seizures shall not be violated." It cited a 1961 ruling, Silverman v. United States, ruling, "At the very core" of the Fourth Amendment "stands the right of a man to retreat into his own home and there be free from unreasonable governmental intrusion." It held that with few exceptions, the question whether a warrantless search of a home is reasonable and hence constitutional must be answered no.

    The decision discussed at length the change in technology availing the government of visual surveillance, and the historic tie of visual surveillance to trespass. However, the court observed, visual surveillance has been historically lawful, because the eye cannot be guilty of trespass. The decision referred back to the 1986 Ciraolo case where the Supreme Court ruled that aerial surveillance with the naked eye was permissible without a search warrant, even if the police were looking at plants growing within the back yard, which known legally as being within the "curtilage" of the home.

    In his discussion of the effect of the evolution of technology on privacy rights, Justice Scalia stated that technology enabling human flight has uncovered portions of the house and its curtilage that once were private. But, he held, the Kyllo case had to confront the limits on the power of technology to shrink the realm of guaranteed privacy.

    What the court concluded is that a search is permissible without a search warrant if the surveillance was normally available to the public without additional technology. Thus, looking down from an airplane is permissible, but using an eavesdropping device is not.

    The distinction that "off-the-wall observations" could be permissible while "through the wall" surveillance could be impermissible would lead to a trap as technology advances. The court held that any other approach "would leave the homeowner at the mercy of advancing technology-including imaging technology that could discern all human activity in the home."
    It looks to me like terahertz imaging would fall under this ruling, and thus be illegal without a warrant. For now, anyway...
  33. Astronomy that can be done with this? by dpp · · Score: 4, Informative
    that's cool. What sort of astrnomy can be done with this?

    I work for an observatory that uses these wavelengths to do astronomy. At these wavelengths you're mostly looking at the cold material in the universe --- stuff like interstellar gas, dust, and so on.

    --
    This post is strictly my own opinion and not necessarily that of my employer.
  34. Re:seems bogus by JBark · · Score: 2, Informative

    I believe they failed to metion infrared, because infrared is usually considered part of the light spectrum, hence the terms "infrared light" and "ultra-violet light".

  35. What exactly is 'terabit speeds'? by jerrytcow · · Score: 2, Interesting
    Terahertz radiation lies on the boundary between radio and light waves and is far more difficult to detect and analyse than either, but is of huge interest for medical, security, environmental and communication uses; the technology could, for instance, theoretically carry wireless data at terabit speeds.

    Do these waves travel faster than 2.4 GHz waves? That would be news - I was under the impression that all waves traveled at the same speed.

  36. Terahertz in the U.S. by oil · · Score: 2, Informative

    There's a small company in Ann Arbor, Michigan that has a commercial terahertz imaging device called the T-Ray 2000. Check it out. http://www.picometrix.com/t-ray/index.html