Using facial recognition technology, Japanese advertisers are testing new digital billboards that are straight out of Minority Report. These billboards are fitted with cameras that capture your image, detect your gender and age, and then create a tailor-made ad on the fly. As the ad rolls, the computer determines how interested you are, how long you’ve watched, and then submits the captured data to the company.Watch the CNN Video.John "Mochi" Park | VP Technology