coondoggie writes: A network of video cameras melded a unique algorithm let scientists with the Carnegie Mellon University track the locations of multiple individuals in complex, indoor setting — just like Harry Potter's Marauder's Map. The Carnegie Mellon system was able to automatically follow the movements of 13 people within a nursing home, even though individuals sometimes slipped out of view of the cameras and researchers said they made use of multiple cues from the video feed: apparel color, person detection, trajectory and, perhaps most significantly, facial recognition, according to university researchers.
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