PetaPixel

Thermal Cameras Could One Day Have Drunk-Face Recognition

Over the past decade, many airports around the world have adopted special thermal cameras that can determine whether or not a passenger has a fever. The goal of these cameras is to prevent infectious diseases from spreading and causing an epidemic (or pandemic). Greek scientists Georgia Koukiou and Vassilis Anastassopoulos recently came up with a similar concept, except their thermal camera is used to detect drunk people instead of contagious people.

The paper they published, titled “Drunk person identification using thermal infrared images” and published in the International Journal of Electronic Security and Digital Forensics, details two algorithms that use thermal images of a subject’s face to determine whether or not they’re intoxicated. Liat Clark of Wired writes,

[...] alcohol causes blood-vessel dilation at the skin’s surface, so by using this principle as a starting point the two began to compare data gathered from thermal-imaging scans. One algorithm compares a database of these facial scans of drunk and sober individuals against pixel values from different sites on a subject’s face.

A second algorithm is used to map out the different areas of the face. The pair found that, when inebriated, an individual’s nose tends to become warmer while their forehead remains far cooler. To use this information against the database with the first algorithm, a second algorithm was necessary to identify and differentiate between features.

The system would be a godsend for law enforcement tasked with monitoring rowdy areas of a city. After being previously limited to observing behavior and giving breathalyzer tests, police officers would be able to easily identify drunk people in a crowd by simply pointing a thermal camera at them.


Image credit: heat by Nanaki


 
 
  • https://twitter.com/#!/thelonelylights Adam Cross

    it’ll be “terrorist vision” next… oh wait, we already have that, it’s called white guy picks out brown guy with a beard and turban and pulls them aside for “random” search

  • http://twitter.com/zak Zak Henry

    Project this tech a few years into the future, I can imagine a similar thing to those automated toll gates that read number plates – instead it could detect drunk driving. Thermal reflectivity of the windscreen might be problematic though.

  • Matt Smith

    I suspect this test alone will not suffice to convict someone of public drunkenness. The boys also better be willing to give up the algorithms if they’re challenged in court, the same way breathalyzer companies have had their software challenged.

  • madmax

    There is a lot of things could cause skin vessel dilatation: warm weather, too much heating or wearing too much clothes, doing sport or working hard, medicaments, sexual excitation, hyperthyroidism… I don´t believe a single word of this!

  • madmax

    There is a lot of things could cause skin vessel dilatation: warm weather, too much heating or wearing too much clothes, doing sport or working hard, medicaments, sexual excitation, hyperthyroidism… I don´t believe a single word of this!

  • 11

    Can I find hot girls with that?

  • 11

    Can I find hot girls with that?

  • val escobar

    If you understood algorithm you would see the probability of this working w a significant database. But not stand in up court at first but…

  • val escobar

    Funny but true.

  • 9inchnail

    If they’re drunk, yes. Propably the kind you’re looking for anyway.

  • 11

    if they are HOT, shouldn’t it show up right away as RED???

  • awagner

    nooooooooooooooooo this sucks