From the archive
Japanese Surveillance Camera System Can Check 36 Million Faces Per Second
There were several news stories late last week about a new surveillance system by Hitachi Kokusai Electric that the company claims is able to capture a person's face and, in one second, scan some 36 million facial images stored in its database to see whether it can find a match.
Discussion
Japan Railway already uses something quite powerful, but not sure if it is the same system described in the article.