are equipping billboards with tiny cameras that gather details about passers-by
— their gender, approximate age and how long they looked at a billboard. These
details are then transmitted to a central database.
The small start-ups behind the technology say they are not storing actual
images of the passers-by, so privacy should not be a concern. The cameras, they
say, use software to determine that a person is standing in front of a billboard,
then analyze facial features to judge the person’s gender and age. So far the
companies are not using race as a parameter, but they say that they can and
Billboards That Look Back – NYTimes.com
In advertising these days, the brass ring goes to those who can measure everything — how many people see a particular advertisement, when they see it, who they are. All of that is easy on the Internet, and getting easier in television and print.