"NEC's camera-attached ads can detect the gender and general age range of those passing by and then offer targeted advertisements on the screen. In the process, demographic data can be collected and provided to the advertising companies as direct feedback.
On top of basic age and gender, the technology can also tell how interested someone is in the advertising. This is just a wild guess, but we bet that the data from men will suggest more advertising with 'half-naked women.' " [CNNGo]