Automating the hunt for child pornographers

日期:2019-03-07 05:11:02 作者:辛扭 阅读:

By Peter Aldhous Algorithms that can quickly match images or even help identify their origin are being deployed to track down criminals who trade in child pornography CHARLES M. JOHNSON JR is today serving life in a US federal jail for producing child pornography. His conviction came thanks to a sharp-eyed investigator at the National Center for Missing & Exploited Children (NCMEC) in Arlington, Virginia, who spotted that two images among the millions received by the centre each year showed different pre-pubescent girls being sexually assaulted on the same distinctive bedspread. “We identified the manufacturer of the bedspread, and where it was sold,