Facial recognition(人臉識(shí)別) technology is widely used today. For example, the police use it to search for bad people. (9)
A
Now, a similar technology, known as facial detection, is entering a new field: the business of advertising. (10)
D
One facial detection system can judge a person's "happiness" or "fear" level. That helps businesses see how people feel as they look at products or advertisements in the shop. Another system can detect whether someone is wearing glasses. (11)
C
Facial detection technology is also placed inside some large advertising boards. Cameras in those boards can detect information like people's ages and five levels of feelings—from "very happy" to "very unhappy". Supporters of the technology say it could improve buyers' experience by showing products they might like or offering them products at lower prices. Some are against the idea of using such systems. Pam Dixon, the head of a privacy(隱私) group, is one of them. (12)
B
For example, a business could raise the price of a product according to a person's age and feelings. (13)
E
And the advertising maker said it didn't keep any personal information or record any videos. It sounds that they are contradictions(矛盾).
