Facial Recognition Billboards in London

  One of last year's "Next  Big Things" reported by students in the class was Facial Recognition Billboards.  These combine digital display billboards with a camera tied to a processor with a fairly simple facial recognition program, that would allow the billboard content to be targeted to basic demographics.  At the time, the system was being tested in several train stations in Japan, and linked to vending machines - the type of drink promoted would vary by gender and age of the person stopping in front of the vending machine and display.
  A billboard-only version has been installed at several points along London's Oxford Street by Plan UK, a nonprofit organization helping children in third-world countries.

Female passersby will be shown the full 40-second video of its ‘Because I’m a Girl’ campaign that promotes sponsoring a girl to receive proper education in a developing country. Males won’t be able to see the full ad and will be directed to Plan UK’s website instead. The purpose of this was to show men “a glimpse of what it’s like to have basic choices taken away.”

 This version of the system costs about $50,000 per display, and is said to be 90% accurate in identifying gender.

Source -  Facial Recognition Billboard Only Lets Women See The Full Ad, psfk.com