An anonymous reader writes "Japan based NHK Science & Technology Research Laboratories (STRL) is testing an interface which observes TV viewers, determines their interest and provides information related to the TV program in accordance with the way they are watching it. UTAN (user technology assisted navigation) TV viewing interface, as it is called, has a camera mounted on the TV which photographs the viewer and estimates the viewer's degrees of interest, concentration, etc. The information is processed by a tablet PC and recommended information is shown to the viewer. It is possible to show individual interests as well, in case there are multiple viewers."
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