Scientists at NEC have developed a CCTV camera which can identify people's ages and genders, by comparing them against samples in a database, and are working on making it capable of determining their socioeconomic status depending on their clothing. The NEC FieldAnalyst technology is not intended for security purposes but for those of marketing, and is currently only avalable in Japan:

the data is intended to help mall owners better understand their visitors. How come no one is going to a certain store? What time of day do most of the 40- to 50-year-old women visit the place? Did the recent promotion reach the desired demographic?

It works better with Japanese people as the vast majority of the samples in the database are Japanese. It also hones down your age only to within 10 years. However, NEC wants to narrow the range, possibly even getting to the point where it can determine age within a year or two.

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