A Russian firm called NTechLab has created a software that, when used in tandem with surveillance cameras, can detect emotions and identify people who are angry, nervous, or stressed in a crowd. The software then processes the emotions it perceives in the context of the age, gender, and identity (if known) of the people it is surveilling to decide who the potential criminals and terrorists are. Last year, the firm’s software was used to power the FindFace app, which works on the Russian version of Facebook to find anyone from missing family members to suspects in cold cases.
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