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Chinese 'Gait Recognition' Tech IDs People By How They Walk; Police Have Started Using It on Streets of Beijing and Shanghai (apnews.com)

Chinese authorities have begun deploying a new surveillance tool: "gait recognition" software that uses people's body shapes and how they walk to identify them, even when their faces are hidden from cameras. From a report: Already used by police on the streets of Beijing and Shanghai, "gait recognition" is part of a push across China to develop artificial-intelligence and data-driven surveillance that is raising concern about how far the technology will go. Huang Yongzhen, the CEO of Watrix, said that its system can identify people from up to 50 meters (165 feet) away, even with their back turned or face covered. This can fill a gap in facial recognition, which needs close-up, high-resolution images of a person's face to work. "You don't need people's cooperation for us to be able to recognize their identity," Huang said in an interview in his Beijing office. "Gait analysis can't be fooled by simply limping, walking with splayed feet or hunching over, because we're analyzing all the features of an entire body."

21 of 135 comments (clear)

  1. Obviously supervised by ... by nospam007 · · Score: 5, Funny

    ...the Ministry of Silly Walks.

    I know, but now we got it out of the way.

    1. Re:Obviously supervised by ... by jwymanm · · Score: 2

      Oblig, damn you parent, https://giphy.com/gifs/ministr... John Cleese forever.

    2. Re:Obviously supervised by ... by balbeir · · Score: 2
      Also, Young Frankenstein comes to mind.

      Walk this way...

    3. Re:Obviously supervised by ... by nerdonamotorcycle · · Score: 2

      If I could walk that way, I wouldn't need aftershave.

  2. I ride a bike by xxxJonBoyxxx · · Score: 2

    Muh huh huh huh huh ha *CRASH*

  3. Yikes! by Aighearach · · Score: 3, Interesting

    It doesn't even matter if it works, only if Chinese people believe that it works.

  4. Re:what else do you expect from commies by Narcocide · · Score: 2, Interesting

    Grocery stores and other such regularly-frequented public businesses have already been doing this for years in the US, already, where you're still property, but of an anonymous megacorp who won't admit it publicly and you don't even get to know the name of

  5. High Tech Countermeasure by cirby · · Score: 4, Insightful

    Put a pebble in one shoe and wear a loose jacket...

  6. Counter measure by Zorro · · Score: 3, Funny

    Walk like an Egyptian.

  7. I'm sure it's just as effective by rsilvergun · · Score: 3, Interesting

    as Drug sniffing dogs and this gem.

    Basically, it's an excuse for the cops to pull you over and ask questions when you're not doing anything wrong. Heck, if anything it's a good sign that the Chinese are resorting to this kind of mumbo jumbo. It shows their people are starting to become conscience of the notion of civil rights.

    --
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  8. "To catch criminals"... by gweihir · · Score: 5, Insightful

    What people do not realize (because they ignore or do not know human history), "criminals" described Jews in Nazi Germany, "politically unreliable people" under Stalin, etc. The next Hitler will get all his victims served on a plate, no way to hide. The only way to prevent that is to ban these technologies outright and very clearly label them as what they are: A tool for oppression that is a severe threat to anybody.

    Oh, and actual criminals are either not important enough or get caught just fine without technology like this.

    --
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    1. Re:"To catch criminals"... by AmiMoJo · · Score: 2

      It could even backfire, at least in the West where we have proper adversarial trials. The state will try to convince everyone that this technology is infallible, like fingerprints or DNA*, and then all the criminals need do is deliberately walk differently and suddenly the CCTV proves it wasn't them.

      I heard that something similar was done with audio recordings. The police have a system where they record the 50Hz mains hum and claim to be able to detect it on recordings, thus providing a timestamp. It's useful for dating recordings they fine and for proving that they didn't edit recordings and stitch them together... Except that apparently now criminals are wise to it they add recorded 50Hz hum from times when they have a watertight alibi and use it to discredit the prosecution.

      * I think everyone knows now, but just in case: neither fingerprints nor DNA are infallible. In fact both are often wrong, especially fingerprints that are often highly subjective.

      --
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  9. Re:Fatboy Slim knows the solution by martinX · · Score: 2

    I believe we can thank Frank Herbert for teaching us "Now remember, walk without rhythm, and we won't attract the worm."

    --
    When they came for the communists, I said "He's next door. Take him away. Goddam commies."
  10. Re:what else do you expect from commies by losfromla · · Score: 2

    We've got the Patriot Act and other similarly invasive laws so I'm not so sure there's a big difference.

    --
    Only I can judge you.
  11. US has had this for more than a decade by RhettLivingston · · Score: 4, Interesting

    The National Information Exchange Model (NIEM) is an XML-based information exchange framework used by the US government to grease the sharing of information between departments. It was started in the Bush administration in 2005. I first noticed it around 2008 and it contained fields to define PersonGait at that time (version 2 I think).

    They have deleted some of these fields since then. I suspect they did so because it gave out too much information about what they are doing though it is also possible the new administration rolled back the push into some of these areas.

    The rules for getting data components added to the model include a requirement that the data components must already be in use by at least 2 different departments. So, in 2008, at least 2 departments of the government were using a person's gait as an identifying characteristic.

    I have included a list of the fields in the "PersonAugmentationType" data type for the V2.0 version of the spec from a decade ago below. Many are interesting including: body odor, ear shape, finger geometry, gait, hand geometry, keystroke dynamics, lip movement, urine, vein pattern, etc.

    The NIEM is publicly available and published on Github. I highly recommend downloading one of the older versions before they sanitized it, like V2.0 or so, and spending some time looking at the spreadsheets that describe it. The insight to be gained in what the government has reason to store about us is extensive.

    • j:PersonAFISIdentification
    • j:PersonBirthPlaceCode
    • j:PersonBodyOdor
    • j:PersonBodyPartsText
    • j:PersonCharge
    • j:PersonConcealedFirearmPermitHolderIndicator
    • j:PersonDentalCharacteristicGeneral
    • j:PersonDentalCharacteristicRemovableAppliances
    • j:PersonDentalPhotoModelAvailableIndicator
    • j:PersonDentalXRayAvailableIndicator
    • j:PersonDrivingIncident
    • j:PersonDrivingInsuranceCoverageCategoryText
    • j:PersonDrivingInsuranceStatusText
    • j:PersonEarShape
    • j:PersonEmancipationDate
    • j:PersonFBIIdentification
    • j:PersonFacialFeatures
    • j:PersonFingerGeometry
    • j:PersonFirearmPermitHolderIndicator
    • j:PersonFirearmSalesDisqualifiedCode
    • j:PersonFootPrint
    • j:PersonFootPrintAvailableIndicator
    • j:PersonGait
    • j:PersonGeneralLedgerIdentification
    • j:PersonHandGeometry
    • j:PersonHitResultsCode
    • j:PersonIrisFeatures
    • j:PersonIssuedPropertyTitleAbstract
    • j:PersonJewelryCategoryText
    • j:PersonKeystrokeDynamics
    • j:PersonLipMovement
    • j:PersonNCICIdentification
    • j:PersonPalmPrint
    • j:PersonPasswordText
    • j:PersonPrimaryWorker
    • j:PersonReferralWorker
    • j:PersonRegisteredOffenderIndicator
    • j:PersonRetina
    • j:PersonSaliva
    • j:PersonSemen
    • j:PersonSightedIndicator
    • j:PersonSpeechPattern
    • j:PersonStateFingerprintIdentification
    • j:PersonTemporaryAssignmentUnit
    • j:PersonThermalFaceImage
    • j:PersonThermalHandImage
    • j:PersonThermalImage
    • j:PersonUrine
    • j:PersonVeinPattern
    • j:PersonVendorIdentification
    • nc:DriverLicense
    • nc:DriverLicensePermit
    • nc:PersonWorkPlace
  12. Rock in Shoe by holophrastic · · Score: 3, Insightful

    I very very long time ago -- twenty, thirty years ago -- I read a book on the human art of spying. There was a lengthy discussion about evading capture when spying in enemy territory.

    A few pages discussed the concept that when someone is following you, on-foot, through a busy shopping mall, you ought to alter your gait, since that's a very easy way that human eyes track human prey.

    The chapter ended with a simple, and straight-forward comment to the effect of: nothing is better than simply placing a small pebble in one of your shoes.

  13. They have gait analysis by presidenteloco · · Score: 2

    Yes. But do they have "skate" analysis? Longboards are great for getaways too. Decent weapon of last resort as well.

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  14. May as well just implant chips in everyone by Rick+Schumann · · Score: 4, Insightful

    I don't know why the Chinese government bothers to preserve this paper-thin pretense that they give a shit about how their citizens feel about anything and just get it over with: implant tracking chips in everyone from birth so they can be wirelessly tracked 24/7/365 for as long as they live. That's about where they're going with this. It's not like the average Chinese citizen, by now, doesn't already realize that they have zero privacy and zero rights of any kind anyway.

    1. Re:May as well just implant chips in everyone by Dorianny · · Score: 3, Insightful

      Countries with oppressive regimes got to be very careful about managing public opinion. Once discontent is widespread in society even a minor event like a fruit vendor setting himself on fire could spark a revolt very quickly (In this case the Arab Spring.)

    2. Re:May as well just implant chips in everyone by DNS-and-BIND · · Score: 2

      That's so stupid. I hate that story. Tibetans set themselves on fire all the time and nobody ever revolts. It's confirmation bias.

      --
      Shutting down free speech with violence isn't fighting fascism. It IS fascism!
  15. Re:Or skip town by Sponge+Bath · · Score: 2

    It's just a jump to the left
    And then a step to the right
    With your hands on your hips
    You bring your knees in tight...