Next step in surveillance AI: Finding out who your friends are

City spaces increasingly feature cameras and other surveillance technology that can be combined with analysis software to predict where people go and who they spend time with. — dpa

LOS ANGELES: A gray-haired man walks through an office lobby holding a coffee cup, staring ahead as he passes the entryway.

He appears unaware that he’s being tracked by a network of cameras that can detect not only where he has been but also who has been with him.