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UCSD Biometric Vending Machine

dice writes to tell us that grad students at the University of California, San Diego (UCSD) are creating the first biometric vending machine. The current machine comes equipped with a barcode scanner, a fingerprint reader, and a web cam for facial recognition. One student dubbed it the "most over-designed soda machine in the world." The project, code-named "SodaVision," is the brainchild of associate professor Stefan Savage, but it was the students who really made it come to life. And yes, it runs Linux.

144 comments

  1. So, does this mean... by fragmentate · · Score: 3, Funny
    ...I won't get my $.50 back now when I flip off the soda machine every time it chomps my coins? Or, is the snack machine going to recognize my frustration, and shake the stuck bag of Cheetos loose for me?

    People sure have a lot of time on their hands!

    1. Re:So, does this mean... by LiquidCoooled · · Score: 2, Funny

      More than likely, it will recognise you and put the can of soda through a tortuous journey through the shakers and bangers to make sure you have a nice drink of soda delivered right up your nose when you open it.

      --
      liqbase :: faster than paper
    2. Re:So, does this mean... by Anonymous Coward · · Score: 0

      Over-designed and too much time on your hands is an understatement. This type of device is more appropriate for an door for gaining entry to an ATM machine or any other high security area. But this device is over-kill for an $.50 can of soda.
      Maybe he can mass produce these for the home market.....

    3. Re:So, does this mean... by emptycorp · · Score: 1

      I for one welcome our new Biometric Vending Machine Overlords.

    4. Re:So, does this mean... by bprime · · Score: 1

      Never mind your Cheetos. I'll be paying this thing once and only once - for a bag of gummy bears. Know what I'm saying?

  2. afraid to vote.. by qewl · · Score: 4, Funny

    Let me be the first to say, I'd be afraid to vote on that thing. Especially libertarian..

    --

    (\_/)
    (O.o) This is Bunny. (> <)
    1. Re:afraid to vote.. by RLiegh · · Score: 1

      Libertarian (aka closet/hipster republican) is fine; I'd be more afraid to vote democrat or -worse yet- green or socialist. Those are the parties which are more in opposistion to the current regime (ok, not the democrats so much, but the greens and socialists definately are).

    2. Re:afraid to vote.. by painQuin · · Score: 1, Insightful

      it's a vending machine... not a voting machine ...

      --
      A guilty conscience means at least you've got one.
    3. Re:afraid to vote.. by heinousjay · · Score: 1

      I'd be afraid to vote green or socialist because I'd be shitscared if they won.

      Also, this entire thread is ridiculously offtopic.

      --
      Slashdot - where whining about luck is the new way to make the world you want.
    4. Re:afraid to vote.. by qewl · · Score: 2, Informative

      Politians come in similar shrink-wrapped, advertisement laden, deceptive packages. It's easy to get them confused.

      --

      (\_/)
      (O.o) This is Bunny. (> <)
    5. Re:afraid to vote.. by painQuin · · Score: 1

      I just had an image of bush clinging to the little spring as it spins... and then someone shakes the machine.

      --
      A guilty conscience means at least you've got one.
    6. Re:afraid to vote.. by indifferent+children · · Score: 1
      I'd be afraid to vote green or socialist because I'd be shitscared if they won.

      Don't be scared; there's absolutely no chance of a Green or Socialist winning (USA). But if enough progressives vote Green or Socialist, we can guarantee that the Republicans win again.

      Burn in hell Ralph there's-no-difference-between-Gore-and-Bush Nader. Really, is there anybody stupid enough to fall for that line of thinking again? Anybody?

      --
      Censorship is telling a man he can't have a steak just because a baby can't chew it. --Mark Twain
    7. Re:afraid to vote.. by Anonymous Coward · · Score: 0

      Heh, I'll still 'fall' for it. I know it's true. The differences is strictly in the details.

      Don't be angry just because your opinion isn't 'obvious' to everyone else. It's arrogant and childish.

    8. Re:afraid to vote.. by indifferent+children · · Score: 1
      The differences is strictly in the details.

      Details like 2,500 dead US soldiers (so far), $300 billion (so far), >50,000 dead Iraqis (so far). With 'details' like those, I'd hate to think what you consider substantive.

      Love Bush or hate him, but it's more than my opinion that there is a difference between Bush and Gore.

      --
      Censorship is telling a man he can't have a steak just because a baby can't chew it. --Mark Twain
    9. Re:afraid to vote.. by RLiegh · · Score: 1

      >Don't be scared; there's absolutely no chance of a Green or Socialist winning (USA). But if enough progressives vote Green or Socialist, we can guarantee that the Republicans win again.

      If the democrats nominate Hillary or Liebermen, then the republicans should win again, and again, and again, until people wake up and demand a meaningful regime change.

      Had gore had won, we'd still have a PATRIOT-style act; probably under a different name and for a different rationalisation; but we'd still have one.

      If Clinton had the cooperation of congress and the senate civil liberties would have looked just as bad in 2000 as they do now.

      When it comes civil liberties, consumer rights and general pro-business-fuck-the-consumer attitudes; clinton democrats are barely distinquishable from the republicans.

      Fundamentally, they're both pro-business; fundamentally they're both happy to carve away at our civil liberties

      Fundamentally, they're both the same.

      Nader 2008!

    10. Re:afraid to vote.. by andrewman327 · · Score: 1
      The dems are the ones who view the greens and reds as threats. The Republicans just point and laugh.


      I wonder why Diebold didn't get the contract to build this cending machine. We trust them with our money and the democratic process, but hands off our tasty snacks! I guess they must be important, though, of Homer was willing to lose an arm for them.

      --
      Information wants a fueled airplane waiting at the hangar and no one gets hurt.
  3. *sighs* by Whiney+Mac+Fanboy · · Score: 4, Funny
    from tfa:

    Stick your thumb on the reader so the machine recognizes you as having an account, take out the drink, scan it with the barcode reader, then walk way


    Lucky students are notoriously honest.
    --
    There are shills on slashdot. Apparently, I'm one of them.
    1. Re:*sighs* by Skim123 · · Score: 4, Informative
      I was a CS grad student at UCSD from 2001-2003. What they had when I was there was something called CafeBob or something like that. It had the barcode scanner. You'd enter your name, scan the item, and it would "deduct" the cost from your account. You could "credit" your account by putting money in a box and then, from the computer, keying in that you deposited X dollars. Very trusting. It was a "co-op" vending machine/system - students would take money from the box to go buy the sodas, snacks, and so on (IIRC).

      I guess now they're taking out the part where you entered your ID and password, and replacing it with a biometric scanner. But, if this is in the same CS grad student lounge, the barcode scanner and basic inventory software has been in place for some time now.

      --

      I could not justify my existence if I were a turkey farmer. Would I terminate myself? Undoubtably, yes.

    2. Re:*sighs* by Lux · · Score: 2, Informative

      They're making Bob less trusting, in part because money had always been slowly leaking away due to theft or negligence in payment.

      To correct the grandparent, it seems that you have to authenticate *before* the machine will vend a soda, which agrees with some announcements I noticed on the department mailing lists. (I'm not at UCSD any more, but I still get the e-mail.) I suspect the scanning is just for inventory tracking, not payment. Maybe the maintainers get an e-mail whenever x Mt. Dews get dispensed after the most recent restocking. They probably just didn't want to hack the vending machine any deeper to track per-soda purchasing.

    3. Re:*sighs* by Anonymous Coward · · Score: 0

      A way to counteract that: If it's discovered someone tried to defraud the machine by not scanning the barcode, it would just charge the account an obnoxiously high fee (say, three dollars, or something).

      Just a thought.

    4. Re:*sighs* by d4 · · Score: 1

      That two-stage process was required in an earlier version, but now the purchase price is deducted from your account when the can is dispensed.

      Fortunately for would-be grifters, however, it's still possible to increase the balance in one's account without depositing money. ;)

    5. Re:*sighs* by d4 · · Score: 2, Interesting

      Actually Chez Bob hasn't been leaking money the past few years; it's actually been slowly accumulating capital. The losses stopped when more effective means were undertaken to prevent unauthorized persons (read: undergraduate students) from entering.

      Chez Bob is as trusting as ever, and inventory is still as untracked and unreliable as ever. ;)

    6. Re:*sighs* by craXORjack · · Score: 1

      Under the original system, unlucky students were mysteriously thumbless.

      --
      Liberals call everyone Nazis yet they are the closest thing to it.
    7. Re:*sighs* by indifferent+children · · Score: 1
      it's actually been slowly accumulating capital

      That explains the $200k vending machine. They had to find some way to dispose of the excess cash.

      --
      Censorship is telling a man he can't have a steak just because a baby can't chew it. --Mark Twain
  4. Many Mountain Dews... by demonbug · · Score: 4, Funny

    were killed to bring us this device.

    Seems really pointless when you think of vending machines that sell soft drinks and snacks, but I guess there could be a use for more-secure vending machines for higher-dollar items (like the one selling iPods I saw a month or two back).

    1. Re:Many Mountain Dews... by geekoid · · Score: 2, Funny

      reducing the cost of the iPod to 1 brick.

      --
      The Kruger Dunning explains most post on /. http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
    2. Re:Many Mountain Dews... by Lux · · Score: 1

      I don't think this even makes sense for higher-dollar items. All vending machines are designed to ensure that goods are not delivered until payment is provided, and, as a secondary consideration, that after payment is provided, goods are delivered.

      Why would anyone care *who* bought the iPod, or what their fingerprint looked like?

      This is extremely small niche. The scenario where this is useful is where there is small community of people who make very frequent use of the machine. The biometric identification simply allows them to buy soda quickly once they have an established line of credit with the system. It also lets them buy soda when they lack small bills and/or change.

      But obviously, you wouldn't put that in an airport. Maybe company breakrooms.

    3. Re:Many Mountain Dews... by Larus · · Score: 1

      Does the lost revenue warrant the massive introduction of the new machines? Supply and demand, y'know...

    4. Re:Many Mountain Dews... by Millenniumman · · Score: 1

      Then ban bricks!

      --
      Stupidity is like nuclear power, it can be used for good or evil. And you don't want to get any on you.
    5. Re:Many Mountain Dews... by enrgeeman · · Score: 1

      Now, now, you're only letting the machine *borrow* the brick. Wouldn't you take the brick back out, and use it on the next machine?

      --
      sent from my slashdot browser.
  5. Hmm.. by yourOneManArmy · · Score: 5, Funny

    When I read the summary I thought, "Hey this sounds pretty useless, but maybe I just missed something." Then I read the article, and I'm still thinking, "Hey this sounds pretty useless."

    1. Re:Hmm.. by v783650 · · Score: 5, Insightful

      Just because it's impractical doesn't make it useless. I'm sure the engineers behind it learned many valuable lessons. Why all the hate? There's nothing wrong with science for science's sake.

    2. Re:Hmm.. by yourOneManArmy · · Score: 1

      The machine is useless. The processes involved in its creation are not. I apologize for my lack of clarity.

    3. Re:Hmm.. by heinousjay · · Score: 5, Funny

      There is absolutely nothing wrong with science for science's sake. This, however, was engineering for engineering's sake, which is one of the most evil forces in the universe.

      --
      Slashdot - where whining about luck is the new way to make the world you want.
    4. Re:Hmm.. by Marcos+Eliziario · · Score: 1

      I don't question your first sentence, but the rest of your post scared me. Now, just telling that some thing is useless qualifies as hate-speak, is it what you mean? A giant step for PC-speak, indeed.

      --
      Your ad could be here!
    5. Re:Hmm.. by Anonymous Coward · · Score: 0

      I agree with you entirely.

      I ask myself why/how might that be interpreted as "hate" and the early "differential dx"

        1 - spill over from other "nasty stuff" in the international news being internalized and not adequately digested.
        2 - inadequate air conditioning (climate control)
        3 - **Sensitive** to criticism and identifying with the criticized

      I don't believe in explanations,... just excuses...

      regards,
      gerry

    6. Re:Hmm.. by Anonymous Coward · · Score: 0

      On a similar note, I once had an English teacher who held that "Growth for growth's sake is the ideology of a cancer." In a related-and-amusing way, he also considered himself a progressive.

    7. Re:Hmm.. by Phat_Tony · · Score: 1

      There's nothing wrong with science for science's sake, or with engineering for engineering's sake. But that doesn't mean that whatever you come up with isn't useless.

      In fact, when you pursue something for the sole purpose of learning about it, rather than a concerted effort to achieve a particular goal, what you end up with usually is useless.

      --
      Can anyone tell me how to set my sig on Slashdot?
    8. Re:Hmm.. by rubycodez · · Score: 1

      at least the students were kept from spending their time having sex for sex's sake, which is anathema to the pursuit of either engineering or science.

    9. Re:Hmm.. by indifferent+children · · Score: 1
      The machine is useless.

      Are you kidding? This machine could pay for itself in one day. Picture this: you're feeling hyper-productive. A million-dollar idea is working itself to the surface of your brain. You are ready to write the best code of your life. You just need one more hit of Mountain Dew to crystallize your focus. You have 27 cents in your pocket.

      --
      Censorship is telling a man he can't have a steak just because a baby can't chew it. --Mark Twain
    10. Re:Hmm.. by drsquare · · Score: 1

      Where is the science in this? They're just using existing science and technology.

  6. DEW 9000 by Anonymous Coward · · Score: 2, Funny

    Open the pop bay door now...

    1. Re:DEW 9000 by Couch+Commander · · Score: 2, Funny

      I'm sorry Dave, I can't do that.

  7. Well my toaster runs NetBSD! by saterdaies · · Score: 4, Funny

    This project is nothing! Linux on a soda machine? I've had NetBSD running on my toaster for years ;)

    1. Re:Well my toaster runs NetBSD! by Stephen+Tennant · · Score: 2

      It's so secure the toast NEVER pops up!

      --
      I spend most of my time in bed, darling.
    2. Re:Well my toaster runs NetBSD! by geekoid · · Score: 3, Funny

      You got your toaster to dispense soda? sweet!

      --
      The Kruger Dunning explains most post on /. http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
    3. Re:Well my toaster runs NetBSD! by mikiN · · Score: 1

      Salvaged with much effort from the charred remains of the toaster's hard drive:

      Aug 2 07:22:46 toaster /netbsd: slot0 on fire
      Aug 2 07:22:53 toaster /netbsd: panic: out of fire hydrant, call 911

      --
      The Hacker's Guide To The Kernel: Don't panic()!
    4. Re:Well my toaster runs NetBSD! by indifferent+children · · Score: 2, Funny
      You got your toaster to dispense soda? sweet!

      No, but one of our goals for version 3.0.2 is that it will dispense toast.

      --
      Censorship is telling a man he can't have a steak just because a baby can't chew it. --Mark Twain
    5. Re:Well my toaster runs NetBSD! by mapmaker · · Score: 1
      No, but one of our goals for version 3.0.2 is that it will dispense toast.

      You had to go and ruin a perfectly good toaster with bloatware didn't you? Damn feature creep.

  8. Ah... by Anonymous Coward · · Score: 0

    It might run Linux, but does it run OS/2?

  9. gone! by LotsOfPhil · · Score: 3, Informative

    Not only is the article slashdotted, so is their site, http://sodavision.com/. The latter has a few more details.

    --
    This post climbed Mt. Washington.
    1. Re:gone! by HTH+NE1 · · Score: 1

      I was able to get to that site just fine.

      Though I find it strains credulity. Am I expected to believe there are soda vending machines out there that vend both Coke and Pepsi products?

      /still angry over zero-day reneging on no-price-increase promise in granting campus monopoly to Pepsi and getting 70-cent 16 oz. bottle vending machines exclusively (12 oz. cans were 50 cents), a price point that virtually guaranteed that the machines would run out of nickels, effectively raising the price to 75 cents a bottle.

      --
      Oh, say does that Star-Spangled Banner entwine / The myrtle of Venus with Bacchus's vine?
  10. The most overhacked vending machine... by __aaclcg7560 · · Score: 2, Funny

    Now the black and white hats in the computer science department will now have a new toy to fight over. Whoever gets the most freebies wins!

  11. Only the Good. by Tackhead · · Score: 2, Funny
    > ...I won't get my $.50 back now when I flip off the soda machine every time it chomps my coins? Or, is the snack machine going to recognize my frustration, and shake the stuck bag of Cheetos loose for me?

    Never flip off a vending machine. They carry one hell of a grudge.

    DISPENSER: You are my nemesis... one day, our paths will cross again, and I - I will destroy you...

    RIMMER: And on that day, I will be the Captain of this ship.

    (A whole lot of plot spoilers happen)

    DISPENSER: Every dog has its day, and today's the day... [ ejects can and knocks Rimmer unconsciousness amidst the flaming corridors of the doomed ship ] ...that I'm the dog.

    - Red Dwarf, Only the Good

    1. Re:Only the Good. by ImTheDarkcyde · · Score: 2, Funny

      did someone say BeBop cola?

  12. Yes, by Anonymous Coward · · Score: 1, Funny

    ..but what distro ?!!?!!!

  13. Facial Recognition by Anonymous Coward · · Score: 0

    So if I dressed up like Osama, post facial recognition will then the soda machine spew out soda in fright or blow-up in my face?

  14. ... SCARY ... by TCFOO · · Score: 3, Interesting

    sorry but paying by fingerprint is a little to scary for me. it's another way for big brother to watch you.

    1. Re:... SCARY ... by EllF · · Score: 2, Funny

      Big Brother knows if you prefer Pepsi or Coke, and he uses it to rape babies.

      --
      We who were living are now dying
      With a little patience
    2. Re:... SCARY ... by mordors9 · · Score: 1

      They have a special option if you don't want to use your fingerprints. You can have an 18 digit code (3 groups of 6) imprinted on your forehead or on the back of your right hand.

    3. Re:... SCARY ... by sensei85 · · Score: 1

      it's another way for big brother to watch you.

      Sure, because there isn't a paper trail for any credit card or check purchase you've ever made. I don't think homeland security's gonna come knocking on your door because you exceeded your pepsi quota for the week, but if this technology is expanded to other things (which it will be), this is a nice convenient way of payment that may actually cut down on fraud. It's harder to steal someone's face and fingerprint than their credit card. (read: harder, not impossible) And if you're buying something you shouldn't be, you're not going to be paying with fingerprint, photo id, credit card, or check. You're going to go to the ATM, insert your credit card/fingerprint/whatever, and then take your nice pile of 20's and score that next eighth of afghani bud.

    4. Re:... SCARY ... by geekoid · · Score: 1

      big brother can watch you regardless of how you buy your soda(or whatever)
      thats not the problem, the problem is what happens if your finger prints get compromisd?

      --
      The Kruger Dunning explains most post on /. http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
    5. Re:... SCARY ... by Anonymous Coward · · Score: 0

      It's harder to steal someone's face and fingerprint than their credit card. (read: harder, not impossible)

      And once they get it you can never change it, they'll just be able to keep stealing your identity for ever. Have fun.

      And if you're buying something you shouldn't be, you're not going to be paying with fingerprint, photo id, credit card, or check. You're going to go to the ATM, insert your credit card/fingerprint/whatever, and then take your nice pile of 20's and score that next eighth of afghani bud.

      They'll use your purchase at the vending machine to track you and thus use it to claim you were within vicinity of a crime.

    6. Re:... SCARY ... by GnuTzu · · Score: 2, Interesting

      And what about the thieves who think cutting off a finger might be a neat way to get a soda?!?!? Of course, the designers will say that they will guard against this. But, thieves don't always think things through and might cut something off anyway. Sure, dummy's like that are going to get caught, but my digits won't work a keyboard or play music like they used to. When will I be able to buy insurance for my fingers and eyeballs that is specifically geared to address biometric crimes (as opposed to generic dismemberment insurance)? I don't want to live a poor disabled life because I couldn't afford to sue the inventors of biometric devices.

      --
      { return clarity; }
    7. Re:... SCARY ... by b0s0z0ku · · Score: 1
      Sure, because there isn't a paper trail for any credit card or check purchase you've ever made.

      I carry $50 or so on me at all times and use it to pay for things. No paper trail unless it's (a) an expensive item or (b) bought for work, in which case I *want* a paper trail for IRS reasons.

      -b.

  15. A better feature for this device by Durrok · · Score: 5, Funny

    Hello! Thank you for using soda vision! You have ingested: 250 grams of sugar today, 1,800 grams of sugar this week, and 7,212 grams this month for a grand total of 15.9 lbs! Congratulations, you are a candidate for TYPE A Diabetes!

    --
    I keep telling myself I'm not the desperate type.
    1. Re:A better feature for this device by P3NIS_CLEAVER · · Score: 0, Offtopic

      mod funny!

      --
      Please sign petition to restore sanity to our banking system!!!

      http://financialpetition.org/
    2. Re:A better feature for this device by Anonymous Coward · · Score: 0

      Sugar does not cause diabetes. So says the American Diabetes Association. People periodically try to make a causal link, but the data never seems to pan out.

    3. Re:A better feature for this device by balloonhead · · Score: 1

      You mean type 1, IDDM (insulin dependent), or juvenile diabetes, I presume?

      It would actually cause type 2 (NIDDM (non-insulin dependent), diabetes of maturity) diabetes, if you believe some authors.

      Type 1 (which is what I think you mean by type A) is destruction of pancreatic islet cells and reduction in insulin production. Type 2 is 'insulin resistant', where the body can produce insulin but cells don't respond to it the way they should, with one hypothesis being that chronic overconsumption of carbohydrates leads to such generally high levels of insulin that the cells stop responding to it.

      Given the fact that fat 2 year olds are now getting it (we're looking at you mainly, america) there's a growing body (non pun intended) of evidence to support that theory.

      --
      This idea was invented by Shampoo.
  16. imagine... by beens · · Score: 1, Offtopic

    a beowulf cluster of these.

    1. Re:imagine... by geekoid · · Score: 1

      I imagine it would be called FIZZ

      --
      The Kruger Dunning explains most post on /. http://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect
    2. Re:imagine... by no_pets · · Score: 1

      Beowulf cluster, a.k.a. "six-pack".

      It scales well to 12-pack and a full 24 machine "case".

      --
      "A government is a body of people, usually notably ungoverned." - Shepard Book Quoting Malcolm Reynolds
  17. I've been wondering about this . . . by code+shady · · Score: 3, Interesting

    They say here that they used a webcam to do the facial recognition.
    I haven't RTFA yet so I'm not sure which brand or model they use, but would the average webcam provide a high enough resolution to do effective facial recognition?

    Would it be possible to write a simple hack that uses the built in camera on a macbook to do the same kind of thing?

    Any facial recognitiion experts out there care to weigh in?

    --
    Look out honey cause I'm usin' technology
    Ain't got time to make no apologies
    1. Re:I've been wondering about this . . . by Anonymous Coward · · Score: 1, Interesting

      me and a buddy wrote a program a few years back for facial recognition on a webcam. only thing that screwed it up was chicks with too much make-up.

    2. Re:I've been wondering about this . . . by Anonymous Coward · · Score: 1, Insightful
      Any facial recognitiion experts out there care to weigh in?

      Better yet, get one of those Mac tablet thigs (iBook?) and have it show the machine a JPEG of someone else's face.

  18. so whats new? by urbieta · · Score: 1

    Tom looks like the unemployed american trying to drink a soda payed with food stamps

    Omir looks like the higly payed indian engineer that will revolutionize the industry lol

    1. Re:so whats new? by OmidKhalili · · Score: 1

      correction: i look like a highly paid PERSIAN engineer that will soon revolutionalize the industry. :-P

    2. Re:so whats new? by tduerig · · Score: 1

      I just don't really sleep. Also, I had to test it with and without stubble. -T

  19. Vista Machine by ManoSinistra · · Score: 0, Flamebait
    And yes, it runs Linux
    What a relief. Could you imagine what would happen if it ran Vista?

    Bob: I want a soda.
    Machine: **please scan finger**
    Bob: :scans finger:
    Machine: **processing**
    Machine: **still processing**
    Machine: **your fingerprint data is about to be send over an un-encrypted network. Continue?**
    Irritated Bob: YES!
    Machine: **please wait until 2007 for your soda**
    Irate Bob: [censored] - Where's that Linux machine . . .
    1. Re:Vista Machine by brjndr · · Score: 2, Funny

      Yeah, here's the linux machine

      Bob: I want a soda
      Machine: ....
      Bob: Hello?!? I want a soda!
      Machine: ....
      Passerby: Dude, there's no decent voice recognition software for this machine yet.
      Bob: Fine, I'll just put in money.

      *Bob puts in dollar*

      Bob: WTF?! It took my dollar, why doesn't it show my credit?
      Passerby: There are no drivers for the bill counter yet. Oh, and don't bother with coins either. They haven't released those drivers either.
      Bob: Well how the fuck am I supposed to get my soda?
      Passerby: Well, write some drivers. Everyone should just write their own. What are you, lazy?

    2. Re:Vista Machine by Bruitist · · Score: 0

      Or if it had WGA: "You appear to be using a pirated finger"

  20. This makes no sense by pHatidic · · Score: 4, Insightful

    Combining biometrics makes identification less accurate. Using both face recognition and a finger print scan would be less accurate than using either alone. For a source, see John Daugman's webpage. He is the one who invented the algorithm that modern iris scanners use.

    Anyway, methinks some investors are being taken for a ride here.

    1. Re:This makes no sense by ichin4 · · Score: 0, Troll

      That is a nice little bit of math on the web page you link to, but you overlook an important aspect. That paper defines "error rate = false positives + false negatives", and shows that layered testing increases the total error rate. But the paper itself points out that layering can decrease one of those terms, and, depending on your application, the bad-ness of each term can be very different. For example, in return for preventing the very bad situation of a thief getting to my money (false positive id), I am willing to accept a lot of inconvenient situations where I have to repeatedly attempt to authenticate myself (false negative id).

    2. Re:This makes no sense by d4 · · Score: 1

      Daugman's analysis assumes each biometric test produces a single bit of information: pass or fail. That assumption makes it possible for him to reason in the abstract about combining tests, and moreover, to treat exhaustively the 2 possible ways of doing so (logical and, logical or). Even so, his result has 2 qualifications: "If the two biometric tests differ significantly in their power, and each operates at its own cross-over point, then combining them gives significantly worse performance than relying solely on the stronger biometric."

      However, a biometric identification method might just as well yield a confidence measure, and such probabilities could be combined in more complex ways than Boolean values. Furthermore, it might be possible to integrate biometric methods even more tightly to produce a single algorithm operating on the total raw input from various sensors.

      P.S. My post is not motivated by the fact I'm a UCSD grad student! ;)

    3. Re:This makes no sense by Anonymous Coward · · Score: 0

      That webpage is, in my opinion, wrong because it does not weigh the cost of false negatives with false positives. Refusing someone soda (a false negative) is much better than charging the wrong person (a false positive). Two tests can allow you to refuse service to someone who fails *either* test (the AND case I think?), thereby virtually eliminating false positives at the cost of more false negatives.

      I don't think there are any serious investors in this soda machine project. The total cost of the machine has probably been less than 500 dollars in materials and 5000 free man-hours. Seems like it wouldn't be a bad ride to me ;)

    4. Re:This makes no sense by QuantumFTL · · Score: 1

      I read that web page, and it's completely correct, but only under its ridiculously restrictive assumptions about the nature of the tests and how they can be combined.

      A standard Bayesian network combining the results of tests which have continuous (rather than boolean) outputs, something which many algorithms for facial recognition, fingerprints, etc, will, on average, give strictly better results than the use of either tests alone - this is not only simple to prove, but the basis of many modern classification systems, for things such as spam detection and data mining.

      Of course this all assumes that the system has been properly calibrated, which should be agiven.

  21. Why didn't they try areola recognition? by Anonymous Coward · · Score: 0

    Subject line says all...

    1. Re:Why didn't they try areola recognition? by pintpusher · · Score: 3, Funny

      umm... the CS dept created it. no test subjects.

      --
      man, I feel like mold.
    2. Re:Why didn't they try areola recognition? by Don'tTreadOnMe · · Score: 1
      Holy shit!

      CS Majors don't have nipples!??!?!

    3. Re:Why didn't they try areola recognition? by Interfacer · · Score: 1

      You don't have much experience with female breasts, do you?
      The areola changes shape and colour depending on temperature, mood and random quantum field fluctuations.

      Trying to recognize one would never work.

      But then again, this is slashdot, so your ignorance is understandable ;-)

    4. Re:Why didn't they try areola recognition? by b0s0z0ku · · Score: 1
      The areola changes shape and colour depending on temperature, mood and random quantum field fluctuations.

      Blow a cold air jet out of the camera before snapping a pic of the areola. The cold combined with the stimulation of the air should cause it to scrunchify and erect nicely.

      -b.

  22. Medical Use by no_pets · · Score: 2, Interesting

    Medical use comes to mind as there are already "vending machines" networked to reduce prescription drug screw ups in hospitals as well as a way account for who took what drugs from inventory and for what patient.

    --
    "A government is a body of people, usually notably ungoverned." - Shepard Book Quoting Malcolm Reynolds
  23. Fortunately... by Black+Parrot · · Score: 3, Funny

    > And yes, it runs Linux.

    Fortunately they haven't been able to find a driver for the anal probe.

    --
    Sheesh, evil *and* a jerk. -- Jade
    1. Re:Fortunately... by Anonymous Coward · · Score: 0

      Don't worry, they'll just use finger. :-)

      - chris_eineke

  24. Hi there ! I am Sody, the refreshing soda machine! by thrill12 · · Score: 1

    What would you like to drink today ?!

    Oh, I see: you're a coca cola man, I see it in your fingerprint !

    Or... wait... you like pepsi too, don't you ?!

    Wow... I really feel great here ! As a matter of fact, I feel so great that I'll dispense you your drink for free !

    Weeeh !

    --
    Slashdot: stuff for news, nerds that matter, matter for news, stuff that nerd
  25. Imagine by Ethan+Allison · · Score: 0, Redundant

    a Beowulf cluster of these things....

  26. Want to be scared even further? by CrazyJim1 · · Score: 0

    Paying for stuff via your hand or forehead is rekoned to the Mark of the Beast which damns you to Hell. Revelation 13:16 The beast forced all the people, small and great, rich and poor, slave and free, to have a mark placed onm their right hands or on their foreheads. 13:17 No one could buy or sell unless he had this mark, that is the beast's name or the number that stands for his name.

    Now, I must confess that while I know God exists, I do not know the man's name that stands for 666, nor do I think that your God given fingerprint is a mark. I'm just saying that its dangerously close to what may come in the future. Personally I am not an apolocolyptic style theologian. I think people should come to God out of love for him and fellow man. I'm just posting that there is much to be afraid of here.

  27. White Vs. Grey Vs. Black by SuperBanana · · Score: 1

    Now the black and white hats in the computer science department will now have a new toy to fight over. Whoever gets the most freebies wins!

    No, no. You see, the white hats aren't in it to drink soda. They're there just to test security, so they'll break in, take a picture to prove they did it, write an email to the designers, and get arrested by campus security.

    The black hats in the department will break in, but they don't actually want anyone to know that they managed to break in, or how...so they won't take anything or tell anyone.

    The grey hats willbreak in drink the sodas because even though it's theft, the soda is grossly overpriced compared to what it cost to produce, and Coke oppresses workers in 3rd world countries. The white hats will get blamed for the missing sodas (which is even better, since they're a bunch of goody-two-shoes.)

  28. Useful? We think so :-) by StefanSavage · · Score: 5, Informative

    Seriously, I suppose usefulness is in the eye of the beholder, but from my rather pragmatic standpoint the machine has one very important use: it allows me to get a coke with very little effort (while differentiating my debts from those of others). There's really nothing more to it that that. I think people are looking for something deep, or new a new product category, or some groundbreaking science... move on... you won't find it here.

    This project really had two goals: make it easy to buy soft drinks from our grad student co-op and have fun building a real artifact.

    The latter part -- having fun -- is underappreciated. Really, the students had a great time putting the pieces together... they had to design and build an interface board to Vendo's control bus, they had to build a UI (that student was a ST:TNG fan so the interface mimics the screens from the series), they had to interface it to our MySql database that holds user accounts, etc. It was a real esprit de coeur project and one in which everyone had alot of fun. Once it was working, people started adding other components: a 2d bar code scanner (not used for soda, contrary to the article, but for candy and other goods), they added visual recognition (and there is a banana detector in the works to register purchase of bananas), there is a voice synthesizer that can say "Shame" out loud if your cash balance in the co-op goes negative, there is even a student who has been talking about door-to-door delivery using a robot, etc.

    I suspect if we had called it a "case mod", people would have had understood the spirit in which it was built.

  29. So now ... by WillRobinson · · Score: 1

    I have to worry about somebody cutting my head off, and not just my finger ...

  30. I for one... by mrraven · · Score: 1

    welcome out Linux running soda machine overlords.

    --
    Tired of all the isms, don't exploit people as an employer, or a government, mmmmK?
    1. Re:I for one... by mrraven · · Score: 1

      The sad thing is I typed "out" instead of "our" because I was rushing to get the joke in first. Must get a life, must get a life... Can I order it online, maybe with some jolt to go?

      --
      Tired of all the isms, don't exploit people as an employer, or a government, mmmmK?
  31. Propaganda for Big Brother by IntelitaryMilligence · · Score: 1

    great soda machine more secure than diebold as if casino machines weren't enough

  32. Nice GUI... by SoCalEd · · Score: 1

    I wonder if:

    A) Michael Okuda gets free sodas, and

    B) Have the Paramount lawyers seen this yet?

    Count down to sending of C&D notices in 3, 2, 1....

    --
    Insert witty comment *here*. I'm fresh out of wit...
  33. not a Nutrimatic dispenser? by egburr · · Score: 1

    As long as it doesn't try to give me something that is "almost, but not quite, entirely unlike tea"...

    --

    Edward Burr
    Having a smoking section in a restaurant is like having a peeing section in a swimming pool.
  34. They lied to us! by Awod · · Score: 0

    "And yes, it runs Linux. " It eats the install disk.. you've been warned!

  35. It runs linux??? by chmod+a+x+mojo · · Score: 1

    Ugh, i hate myself for saying it but....
    Is it possible to beef up the graffics subsystem and install Vista BETA on it???

    --
    To err is human; effective mayhem requires the root password!
  36. Sledge hammer? by irishkev · · Score: 0, Offtopic

    I'm starting to really enjoy stories that sum up the situation humanity is facing in very concise ways. Stories that are so jam packed with insanity and evil that one doesn't even know where to begin the analysis. The point, of course, is that analysis is no longer necessary to see where we are headed. The thing is apparent, prima facie.

    I wonder how that thing would stand up to a sledge hammer?

  37. Beer dispensor by texaport · · Score: 2, Funny
    No more fake IDs. In Loco Parentis without people. Knows to not dispense on Sundays until the churches have closed.

    Talks to Diebold machines on voting days to comply with State laws. Switches you to light beer after the first six.

    Cuts you off after a few too many, to keep underage students from cutting off older, sleeping roommates' fingers.

  38. Medical/Hospital uses by Blighten · · Score: 1

    I see this design could have some uses with the distribution of medication and supplies in hospitals. It could allow the medical staff greater security to the possibility of someone using their password to steal narcotics, etc.

  39. So you order soda.....Healthcare record documented by siasl · · Score: 1

    As a former UC system graduate and in middle age I have some question allowing vending machines to aggregate data on your soft drink habits as a student. Getting health care is becoming a real crap shoot as you grow older. The noose is being drawn tighter and tighter on the data being used to disqualify on the basis of "previous" history. Be carefull what information you allow about your habits to be collected....

  40. Let me see... by eosp · · Score: 1

    while(1) {
    Inserts coins
    KERNEL PANIC: (blink blink blink)
    Profit!!!
    }

  41. Re:Useful? We think so :-) by lazybeam · · Score: 1

    (and there is a banana detector in the works to register purchase of bananas)

    With the price of bananas lately you need lots of controls to protect them :)

    Has the price of bananas trebled in price anywhere else in the world, from last year?

    --
    --
    no sig for you. come back one year.
  42. Killer Soda Machines by Captin+Shmit · · Score: 1

    Now they have to take it to the next level...

  43. I christen thee...! by misterhypno · · Score: 2, Insightful

    And it allows the diet police to KEEP you from GETTING that Pepsi that you so desperately want, too!

    This thing has the capability of monitoring WHO is using it, WHAT they are buying, and, with very little hassle on the server end, running a database of "healthy/NOT healthy" purchases and locking a user out who has too many "Not Healthy" buys on his or her record. Given the move towards lack of choice in school lunches - how long will it be before companies and even grogery stores start using this technology to remove even MORE freedom of choice from the American consumer?

    Every bright side has a dark one and I have the feeling that I just nailed down where the dark side of THIS force happens to be.

    Therefore, I christen this vending machine: "DARTH VENDER!"

    Lee Darrow, C.H.
    Chicago, IL

  44. LOTS of Useful Stuff Like: by mpapet · · Score: 1

    1. One to many fingerprint matching algorithm.
    2. One to many facial matching algorithm.
    3. Fingerprint sensor driver. (In linux no less)
    4. Algorythms to detect fake fingers and faces.
    5. Backend storage systems for all of the data

    Unless you are working for a company that develops these systems, there's not much information out there.

    Immensly useful research in a fun application.

    --
    http://www.maxineudall.com/2010/02/should-economists-be-sued-for-malpractice.html
  45. Um... by Anonymous Coward · · Score: 0

    Yawn. Old news.

  46. Sure, but how long will it last? by andyabides · · Score: 1

    If they can't even keep a vending machine with a simple dollar-bill acceptor in working order, what hope is there for a vending machine that runs Linux and reads your fingerprints?

    1. Re:Sure, but how long will it last? by DonGar · · Score: 1

      If they can't even keep a vending machine with a simple dollar-bill acceptor in working order, what hope is there for a vending machine that runs Linux and reads your fingerprints?

      Should be much easier. They don't keep creating new 'harder to forge' versions of the fingerprint every couple of years.

      --
      plus-good, double-plus-good
  47. Nothing new.. Well, maybe a bit.. by paxmaniac · · Score: 1

    Networked vending machines running linux are nothing new. The University of Western Australia Computer Club had this one way back in 1992 (and still does as far as I can tell):
    http://www.ucc.asn.au/services/drink.ucc

    The biometric thing is a new wheeze though!

    1. Re:Nothing new.. Well, maybe a bit.. by splug · · Score: 1

      The original network attached soda machine was created by a group of students from Computer Science House http://www.csh.rit.edu/ at RIT for fun around 1985. It has been a work in progress ever since. I believe they currently have two fully functioning machines. They also hold the patient on network based vending machines, which is why you don't see them for sale. You can find more info here http://www.csh.rit.edu/projects/drink. They also don't need you to scan the soda it is all automatic, and soda drop recognition is done with a laser.

  48. Re:Useful? We think so :-) by Murodese · · Score: 1

    All over Australia, but from memory that's due to one of our largest banana-growing regions being hit by a cyclone earlier this year.

  49. Chez Bob by ShakaUVM · · Score: 2, Informative

    Heya Stefan,

    I (Bill Kerney) was a grad student in CS at UCSD until '01 or '02 or so under Scott Baden.

    For those who don't know, the Chez Bob computer was the most overengineered ledger in the history of ledgers. Every year some student would hack it to do something new and unusual. When I was there, they:
    1) Added passwords (which were not really needed since the fridge door wasn't locked or anything if you wanted to steal something)
    2) Added text to speech.
    3) Added a saying it could say whenever you logged in. I enjoyed making up random latin phrases, which it would read in its stately mechanical voice.
    4) Added a barcode reader.
    5) Barcode reader was integrated into text to speech. "BOUGHT. ONE. TIGERS. MILK." Awesome.

    And I think it also did stock alerts, sending an email to the Chez Bob Coordinator Alan Su when they were running low on something. Since we had a few people in the department who did Battlebots at the time, there were some people working on building a delivery robot that would pull the item out of the fridge, drive down the corridor and deliver the item. I think the main stumbling block was that they couldn't figure out how to open the doors (which had passcodes, and I think were difficult to open anyway for a robot).

    For those who don't know Stefen Savage, check the archives on Slashdot, going back at least to '98 or so when he published his doctoral thesis (IIRC) on tracking DDOS attacks by looking at spurious ACKs coming into an unused block of IP space. He's had a lot of interesting ideas that Slashdot has covered. If my memory hasn't gone fuzzy, he also tought a computer gaming class at UCSD (which I enjoyed helping my friend (Scott O'Neil) with as I'd worked in the gaming industry for a couple years).

  50. Fascial recognition vending machines by KKK by Anonymous Coward · · Score: 0

    It is a very useful machine, the fascial recognition security system will not allow niggers and yellows and other coloured subhumans drink from the same source as caucasians (especially meaning the ubermensch nordic aryans and the anglo-saxons). People will be required to show head frontal and profile to the webcam, in order to recognize and exclude jews based on their characteristic long noses. It is of paramount importance to exclude jews as they are well known to poison city wells out of hatred for christians! Biometric vending machines are a great method for enforcing racial segregation and racial hygiene, its introcduction worldwide is the white man's burden! I encourage all whites to drink Reich Cola and Fanta, the pure-blood germanic orange beverage, from these fascial recognition vending machines.

  51. every time you use your fingerprint .. god kills . by freaker_TuC · · Score: 1

    Every time you use your fingerprint, god kills a mountain dew ;)

    --
    --- I am known for the ones who want to find me on the net. Is that a privacy risk or a privilege? One might wonder..
  52. I disagree by dmatos · · Score: 1

    If it weren't for engineering for engineering's sake, we'd never have . . .

    the treadmill bike!

    (PS - you've gotta watch the videos. They're hilarious.)

    --

    It may look like I'm doing nothing, but I'm actively waiting for my problems to go away.
    --Scott Adams
    1. Re:I disagree by Jack+LeLoup · · Score: 1

      Hilarious! I love the Bicycle Forest. Their Couchbike is another nice example of wacky engineering.

  53. Re:Useful? We think so :-) by plague3106 · · Score: 1

    but from my rather pragmatic standpoint the machine has one very important use: it allows me to get a coke with very little effort (while differentiating my debts from those of others).

    Hmm.. my college had a vending machine capable of the same; you swiped your college id and made your choice. A fingerprint scanner is overkill if that's all the machine needs to do.

  54. Re:Useful? We think so :-) by technococcus · · Score: 1

    Sounds like it was hella fun. Wish there was more of this sort of thing goin' on at Vanderbilt...

  55. but does is run linux? by paughsw · · Score: 1

    opps! urm i mean windows

  56. Re:Useful? We think so :-) by praxim · · Score: 1

    If it suits you, you can scan the barcode on the back of your id as well. It's actually more convenient to use your thumbprint if you don't already have your id out of your wallet, e.g., you followed someone else into the lounge.

  57. Re:So you order soda.....Healthcare record documen by The+Cisco+Kid · · Score: 1

    Quite frankly, having to haul around the change, and make change, for vending machines, is a royal PIA, for both the customer and the vendor. There is a solution, which doesnt require identification of each customer (and thereby avoiding the profiling and privacy problems)

    Establish a 'preloaded, prepaid card' sort of deal. It could use magstripe cards similar to those used on some mass transit systems - the ones made out of paper.

    Each vending machine gets a reader. A 'change machine' that accepts cash, including bills up to ,say $20 at least, and issues cards (and maybe also can recharge a card you already have). The machine could also accept ATM and/or Visa/Master cards (for customers who arent concerned with privacy, and dont want to have to carry any cash)

    The only decision is to wether to use the card to store only an 'account' number, which would require networking of the machines and central tracking of the amounts credited to each card, or wether to store the amount directly on the card. The former obviously requires a lot of infrastructure, the latter requires that the vending machines be able to rewrite the card as well as read it. Both would require some suitable public-key encryption/signing of the data on the cards to avoid fraud by forgery.

    The account number method, for cards purchased using a trackable means (CC/ATM card) could allow the vendor to also offer the ability for a refund if the card is lost - the database knows how much was on it, and can block its use for further purchases upon a refund issue (most likely in the form of a new card)

  58. Re:So you order soda.....Healthcare record documen by The+Cisco+Kid · · Score: 1

    (Replying to my own post, how lame :)

    Actually, the 'value stored on the card' option has an unpreventable fraud option - simply take a loaded card and copy it verbatim. With no central tracking there would be no way to recognize it as a duplicate. In the 'account number' model copying the card would gain the fraudster nothing, since either the original or the copy would both deduct purchases from the same database record.

  59. That's nothing... by Cap'n_Nuthole · · Score: 1

    ... look what some other soda-distribution researchers are developing. Makes that thing look like a steam-toaster!

  60. Actually the 2nd vending machine quickstore24.com by scruffy323 · · Score: 1

    The first and first commercial vending machine with finger print recogniztion software is http://www.quickstore24.com/

    --
    ...one person in this group who is chronically underestimated is me.
  61. amazing! but.. by cmccartin · · Score: 1

    it already exists.. www.quickstore24.com

    1. Re:amazing! but.. by scruffy323 · · Score: 1

      Dam two vending machines in the same day.

      --
      ...one person in this group who is chronically underestimated is me.
  62. Re:Actually the 2nd vending machine quickstore24.c by cmccartin · · Score: 1

    real nice piece of machinery.. i heard that the programmers over there are phenomenal

  63. Re:Useful? We think so :-) by ShooterNeo · · Score: 1

    Quick question : does the machine's interface have the same star trek sound effects? And that sound the replicators make when they are dispensing stuff?

  64. Finger by Flwyd · · Score: 1

    Back when I started using the internet (1993), I thought it was really cool that you could
    % finger coke@cs.wisc.edu
    and see if the vending machine was on.

    Now I can
    % finger @coke.cs.ucsd.edu
    and see who's on the vending machine.

    --
    Ceci n'est pas une signature.
  65. Big Brother? by MattS423 · · Score: 1

    Is this big brother manifesting himself in soda machine form? Oh, and 10 points to the developers for devoting their energies to solving problems that people actually care about.

  66. So this means... by Mark+of+THE+CITY · · Score: 1

    that vending machine in the engineering student lounge, that chunked out sodas in 10 ounce bottles, is gone? Professor Lugananni must be VERY upset. :)

    --
    The clearance system sounds logical. It is not. It is completely arbitrary. -- John Bolton
  67. Uses: "restricted" products by b0s0z0ku · · Score: 1
    When I read the summary I thought, "Hey this sounds pretty useless, but maybe I just missed something." Then I read the article, and I'm still thinking, "Hey this sounds pretty useless."

    It verifies ID, so it verifies age. Thus, it may be good for vending alcohol in drinking-age-paranoiac countries like the US. Or cigarettes - the purchasers' info is sent straight to an insurance database, of course.

    The better and cheaper solution would just be to accept the fact that teenagers *will* drink, lower the drinking age to 16 and raise the driving age to 18. That way, they'll get the "binging" out of their collective systems *before* learning to drive.

    -b.